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From: Hans S. <han...@en...> - 2011-05-12 10:37:01
|
Dear friends and colleagues, Please find onby the EINSTEIN newsletter No. 6. Best regards, Hans Schweiger -- ___________________________________________________________ Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net Office Berlin: +49 30 4606 44-00 Fax: -88 Mobile / Office Barcelona: +34 697 267 280 ___________________________________________________________ E I N S T E I N expert system for an intelligent supply of thermal energy in industry and other large-scale applications einstein.sourceforge.net | www.einstein-energy.net ___________________________________________________________ |
From: Hans S. <han...@en...> - 2010-12-03 09:39:08
|
Dear friends and colleagues, Please find onby the second anouncement including a draft programme for the 1st EINSTEIN users and developers day in Luxembourg. Date 28th of February 2011. We extended the deadline for submission of abstracts for communications to the 10th of January 2011. Looking forward to see You in Luxembourg. Best regards, Hans Schweiger -- NEW PHONE NUMBER !!!! NUEVO NÚMERO DE TELÉFONO !!!! NEUE TELEFONNUMMER !!!! ___________________________________________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net tel +49 30 4606 4400 (Office Berlin) fax +49 30 4606 4488 mob.+34 697 267 280 ___________________________________________________________ E I N S T E I N expert system for an intelligent supply of thermal energy in industry and other large-scale applications einstein.sourceforge.net | www.einstein-energy.net ___________________________________________________________ ATOMKRAFT ABSCHALTEN - JETZT www.atomkraft-abschalten.de | www.ausgestrahlt.de ___________________________________________________________ |
From: Hans S. <han...@en...> - 2009-07-06 08:42:36
|
Includes: - the latest version of PE2 - some bug-fixes for V1.0.06 - simulation is now calculated two times, so that heat recovery get's the actual schedule of the waste heat flows. -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-06-12 21:48:43
|
-- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-06-12 20:16:50
|
Bettina, Onby my test results trying to produce a report including TCA with the EINSTEIN Guide 41 example. Seems that there are still several things to be solved. Please have a look on the test report. (you should use the new update 312 on SVN for reproducing the report) Sunny regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-06-11 07:36:03
|
Dear all, On SVN now is update 305: - completely updated manual (IMPORTANT - please tell the auditors: from the consistency check section in the manual now there is an access to the parameter list, so that information on the symbols used can be obtained). - update of BB module (reduction of redundancy) - xmlio: bug fix for file import in non-ascii languages - reasonable limits min/max in GUI panels - checkProc: change in estimate for QEvap and DTCrossHX !!!! - small bug-fix in ModuleHR (self.data = None in __init) VERY IMPORTANT: the changes in the Consistency Check module may affect projects (audits) that used the ESTIMATE function, and especially estimates of UPHm (QOpProc) and/or estimates of PTOutFlowRec. In the case of UPHm estimation, previous to the changes when estimating it was always supposed that QEvapProc = 0, and thermal losses of the process were estimated. This worked fine for processes without evaporation, but led to conflicts in processes WITH (e.g. ITA 01 example, ...). After the change, there may arise problems in cases WITHOUT evaporation, as now in spite of the capability of EINSTEIN to estimate the thermal losses, the total UPHm (QOpProc) remains undefined, as QOpProc = QLoss + QEvapProc, and therefore EINSTEIN is no longer able to ESTIMATE an upper limit for QOpProc. Sunny regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-05-12 16:22:41
|
Bettina, Huyen, With the files onby the Panel 7 in Comparative Study (IRR, etc.) should now work fine. Please check if this is valid also for the same data in the report. Probably the reason was that Einstein checks a flag "StatusECO" of the alternative (Table salternatives), that should be set to 1, once the economic calculations for this alternative have been carried out and are up to date. Could You please change the TCA module so that this flag is set after calculations. Thanks, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Slawitsch, B. <Bet...@jo...> - 2009-05-06 13:08:28
|
Dear developers, How can i make sure that EINSTEIN updates panels correctly? The following problem: I open the HR module for 1 new proposal - everything is emtpy. I open the HR module for an OLD proposal, with HX - HX are displayes as they are stroed in the database. I open the HR module for the NEW proposal again - the HX from the OLD proposal are still displayed. We checked our code and update all panels and values from the database - does somebody know of a special python trick how to program the update? Thanks for hints, bettina |
From: Hans S. <han...@en...> - 2009-04-29 15:16:33
|
Dear all, A new update (no. 300) is on SVN. - the moduleHR.py should now work correctly (no more negative slopes in heat demand curves, etc. ...). part of the new algorithms is documented in the developer's manual. Please do all the testing with this new upload. Regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-04-22 15:11:10
|
Dear all, The bugs in moduleHR and calculations of heat recovery from exhaust gas now should be fixed (update 298 at SVN). Please test whether your cases now work well. Regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-04-21 10:06:56
|
Bettina, Yesterday I fixed some problems in ModuleHR (and related functions) with respect to the re-translation of the PE2 - results into the EINSTEIN energy flow matrices. There are still some minor problems, probably due to some rounding errors. I will come up later on with some questions regarding this. In the meanwhile I uploaded the intermediate version to SVN. Please test whether the problems with the HR module persist with this new update. Thanks, Hans -- __________________________ Dr. Hans Schweiger energyXperts.NET Ingeniería Termo-energética y Energías Renovables Thermische Energietechnik und erneuerbare Energien Thermo-energetical Engineering and Renewable Energies Barcelona (Spain) / Berlin (Germany) www.energyxperts.net e-mail: han...@en... Tel./fax: +49 30 221 606 759 (Office Berlin) +34 93 788 31 10 (Office Barcelona) +34 697 267 280 (Mobile) |
From: Hans S. <han...@en...> - 2009-04-02 09:51:42
|
If you do testing, please use the new upload on SVN (No. 292). There was still a small bug in the previous one that might cause problems in some projects. Regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 937 883 110 mobile: +34 697 267 280 |
From: Hans S. <han...@en...> - 2009-04-01 15:14:03
|
Dear all, I uploaded a new version of EINSTEIN on SVN. New features: 1. The errors that occured if someone entered a process, equipment or whatever with an empty name are fixed: - it is no longer allowed to enter components without name (this security feature was already in from the beginning, but has become inactive by error due to the changes towards utf-8) - each time a project is opened, now it is checked for corrupt data entries. those are deleted. so also old projects that are damaged can be repaired. Please test urgently doing some data entries and deletes pressing any buttons you can imagine in Q3 - Q8. Now things should be robust ... (hopefully) Bettina, Huyen and everybody who had problems with the data entry in V1.0.03 -> please check if those persist !!! 2. I uploaded the new PE2 version (from 26/02 - sorry Bettina for the delay). => Stoyan, could you please test if your problem with the heat exchangers persists with this new version ? It would be fine if You could give me feed-back until tomorrow 14:00, so that I can send an improved version to the auditors. Sunny regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 937 883 110 mobile: +34 697 267 280 |
From: energyXperts.NET <in...@en...> - 2008-12-12 14:07:04
|
Dear all, The beta version of the new EINSTEIN V1.0.03 is now available on sourceforge. It would be very helpful if some of You could do some testing until latest Friday, 19th. The most relevant new features added since V1.0.02: - full UTF8 support (text with accents and "strange" characters such as ñ, Ä, ...) now in all parts of the tool (text entered by the user, user interface, report, databases) - translations to Italian, Polish, Slovene, Spanish and some partial translation to German. - the manual interruption of the auto-pilot is now working Sunny regards, Hans Schweiger -- __________________________ energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: in...@en... tel/fax: +34 937 883 110 mobile: +34 697 267 280 |
From: Hans S. <han...@en...> - 2008-12-04 19:56:02
|
Dear all, I just uploaded a new version on SVN. UTF-8 characters (i.e. strange things such as "Würstl") now should work all over the tool. Please try it out and do some extreme-testing: - switch to some language with as many as possible accents and non-ASCII characters (Polish is fantastic for this ...) - fill in all the names of processes and equipments with as much as Ä's, ñ's, etc. as you can (find attached a project and a fuel data base with lot's of strange things ... - you can try to import it and work with it) And if something doesn't work as it should, don't wonder too much, but ... please then collect the einsteinLOG-files with the error messages and send them to me. It would be fine if everyone of the developers group could take at least 15 minutes for some testing until end of this week, so that maybe next week I can make a new public upload (V1.0.03). Thanks for your help, sunny regards Hans P.D.: Christoph, Bettina, Florian: I did some changes in most of the TCA and some of the HR and PO files for adjusting them for UTF-8 (unicode) use. Especially in the panelTCA - __store-functions I changed the way of inserting / updating rows into the SQL (as I didn't know how to bring non-ASCII characters into the queries You used. Now I think I know how I could have done this, but it's too late, I had already done the changes; but anyway: it works ... -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Hans S. <han...@en...> - 2008-11-12 16:11:02
|
Dear all, Onby (and on SVN) a new draft release: - in this update now MANY things should work with accents (such as Wiener Würstl, la solución española, czesky pivnice ..., etc. ) - probably NOT working yet: everything associated with XML - import / export (including PE2) Please do some tests as soon as possible: if it's robust enough, maybe we can give green light to use this version for the trainings in Prague and Warszaw. Sunny regards, Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Hans S. <han...@en...> - 2008-10-30 13:46:31
|
Dear Andreja, Some comments regarding the tool and your request for help: In the installer there were exactly 2 bugs (not such "a lot") and both could have been easily detected if one of the persons who worked in the installation would have contacted us directly by phone or skype, as I offered several times to You and to Uni Maribor. Anyway: thanks for having detected those bugs, they are now corrected on the version that is uploaded. Regarding the technical support: within the limits of available time me and Stoyan, and surely also the others, will be happy to support You answering the questions that arise using the tool, so that the training in Slovenia can be success. But please have in mind that the RESPONSIBLE partner within the EINSTEIN consortium for giving You technical support on all those detail questions is Uni Maribor. Regarding the tool: Please be aware that in the training in Slovenia You should tell the participants to enter all text (company names, equipment names, etc.) into the tool in english or at least without accents. Text with non-ASCII characters is not yet fully supported. We are working on this, but I can't promise You that this will be ready until Tuesday. Sunny regards, Hans Gorsek Andreja wrote: >Dear Hans > >I had a lot of difficulties to update version 1.0! In this version is a lot of bugs and only with the help from one of the technical staff from UNI MB we could upload this software! >Now we try to get to know this program before we start with the trainings. At the beginning I came to a problem and I do not know how to proceed: >When I try to change some data in existing example Container Washing Ltd. this lines appear: DATA HAVE ALREADY BEEN CONFIRMED AS CONSISTENT: FIRST UNBLOCK BEFORE MODIFYING! What should I do? > >As I understand we need OpenOffice just to produce report and questionnaire! Is it possible to open report with word? > > >Best regards, > >Andreja > > > > > > -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Slawitsch, B. <Bet...@jo...> - 2008-10-30 09:53:55
|
Dear all, having in mind the feedback and some little improvements that will be maybe done in the next weeks /days (for sure in the HR and TCA small things), we decided not to open the download of the tool now - also for the Austrian participants we would like them to install the tool with a few improvements. Internally, I think the trainers know the link and have the tool available. Is it ok for everybody, that we put the following information on the webpage: Pleas let us know!! bettina Download EINSTEIN software tool For the moment you will receive the EINSTEIN tool during the courses or from your trainers. The download of EINSTEIN tool will be available via webpage in a few weeks with some improvement features |
From: <han...@en...> - 2008-10-29 08:49:58
|
Florian, Bettina, We have problems with PE2 that is not running on 90 % of the computers in the class room. Could You please check if this can be solved easily so that we can maybe show them this afternoon at least that it works ... Thanks a lot, Hans (note 1: attached the xml's and message files from 3 pc's. The only message I can discover is "error in external program ...". the inputHR.xml seems ok ...) (note 2: the PC's are not the fastest ones, seem some elder models ... don't know if this may be a problem for PE2 ?) |
From: claudia v. <cla...@gm...> - 2008-10-27 15:08:22
|
Last minute: maybe useful ST - how to use it (something new since the user manual) 3 main paths: 1) first run design assistant DA an THEN change any parameter of the DA configuration and re-run DA OR define the power and authomatically it will calculate the energy and the parameters on the right 2) first define the power and it will ask you to choose a collector from DB with these 2 info it already calculates. Then if you like you can specify the distribution efficiency and the storage volume. Einstein can design a plant WO storage 3) first you specify a collector -> it will show pre-selected in DA opcion authomatically, and you can 1) run design assistant or 2) specify the power... these 3 main paths were design to satisfy the main operating modes concerning ST: 1) NO IDEA: design from scratch everithing and then I will adjust/change some paramters 2) I KNOW the DEMAND (POWER required) and therefore I design a ST plant of such a size... 3) I HAVE MY COLLECTOR (I am a manufacturer/seller) so I want to use this fisrt and see what Eisntein proposes... Concerning Auto-semi_inter no difference now implemented WHILE in boilers in principle should be a difference in the parameters that can be selected ...please discover it by yourself... good luck and thank you very much for the collaboration/help/support!!! cla&co. -- ******************************************************* University of Rome Sapienza Department of Mechanics and Aeronautics, via Eudossiana 18 – 00184 Rome Tel.: +39 0644585271 – 234 e-mail: cla...@gm... cla...@un... ****************************************************** |
From: Hans S. <han...@en...> - 2008-10-27 14:57:04
|
Sorry, the database is not yet very exhaustive ... but something is something ... Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Hans S. <han...@en...> - 2008-10-27 10:09:43
|
Slawitsch, Bettina wrote: > Dear all, > > some general questions that might arise in the trainings, working with > the tool: > > 1) The delete function is not working, right? just to know... Delete WHAT ? There are many delete functions that DO work ... > 2)Does the benchmark module work in your computers? Do we need to do > anything to make this work? Database?? On the panel nothing can be > selected and no button works. PanelBM1 seems to have problems (I'm not sure). The best to show for the demo is the second one (benchmarks by product). I have a corrected database from Damjan (he deleted the 0's ... ) but I still did not have time to include it. I someone has time to create a new benchmark.xml on this ... ? > > less important, but helpful for us to answer the questions in the > trainings: > 1) Is the reading of project data from excel questionnaire already > working? yes/no? NO > 2) Is the print questionnaire function working - yes/no? NO. neither import / export / print of the questionnaire is working. In principle we have the tools to do this (same procedure as with report), but no time for programming this. > 3) Preferences: Does the user need the debug modes for the CC in any > case, or was this just for internal CC check debugging? No. The user does not need this. Anyway a "normal" user won't understand anything of these debug messages :-) > 4) Where are the different modes of EINSTEIN > interactive/Semi-automatic/automatic best defined - so that the users > can re-read - in the audit guide or rather in the manual? ? I think in the manual (chap. 2 there's something written, but very bad ... I just copied the slides from the Sabadell meeting) In fact, at present there's very few difference. INTERACTIVE - SEMI-AUTOMATIC: as far as I see there's no difference at all in the present state of the tool. INTERACTIVE - AUTOMATIC: In automatic mode: 1. the auto-pilot doesn't ask for confirmation in automatic mode 2. in some design assistants (HP, CHP) the final selection of equipment is done automatically, whereas in the interactive mode a pop-up appears that let's the user select among two or three automatically pre-selected equipments. > > below some more questions for the trainings from yesterday. > and a small comment: for us the link to subscribe to the EINstein > users is not working in the menu option - help. I know. Maybe Heiliger Florian can help ... > > > sunny regards, bettina &christoph > > email yesterday: > some more comments: > > With which factors is PET calculated on the basis of FET? for gas, > oil, etc? For the fuels, I think there is a PE conversion factor in the fuel data base. For electricity, there is the table "electricity mix": the idea was that the user can define his/her own electricity mixes with the corresponding conversion factor. Nevertheless, I think programming this remained on half-way, so up to now some default values are used (3.0 for electricity). > > Heat demand proc: car industry: why is UPH higher then UPHproc when no > HX is inserted? This is a good question :-) > > What is the main statement that we want to give with the "energy > intensity" graphs? Is it used in the benchmark model or just for > visulation of the values? The main objective of this of course is benchmarking !! > on which basis is specific energy consumption per product calculated > (SEC)? Should there be a differenc between the values stated in Q1/ > product data/energy consumption per product and the SEC shown in the > EnergyIntensityPanel? data ENTERED in Q1 are for present state. for other alternatives energy consumption by product should be CALCULATED. (this is NOT done right now, as we still have no methodology of how to associate processes / equipments to a certain product line ... the only thing we could do is maintain the same proportions of the present state, and increase/reduce proportionally ... but: this is NOT working !!!) > For car washing example: Q1: 0,15 mWh/product - reasonable, > EnergyIntensityPanel: 0,03 kWh/product ? These are surely transmission losses on the way from the GUI to the EnergyIntensityPanel ... > > Benchmark/ Global energy intensity - is the panel working?? > Once it was working, but testing one day with Claudia we discovered problems. As stated above, for demo better use the "SEC by product" panel. Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Slawitsch, B. <Bet...@jo...> - 2008-10-27 09:42:51
|
Dear all, some general questions that might arise in the trainings, working with the tool: 1) The delete function is not working, right? just to know... 2)Does the benchmark module work in your computers? Do we need to do anything to make this work? Database?? On the panel nothing can be selected and no button works. less important, but helpful for us to answer the questions in the trainings: 1) Is the reading of project data from excel questionnaire already working? yes/no? 2) Is the print questionnaire function working - yes/no? 3) Preferences: Does the user need the debug modes for the CC in any case, or was this just for internal CC check debugging? 4) Where are the different modes of EINSTEIN interactive/Semi-automatic/automatic best defined - so that the users can re-read - in the audit guide or rather in the manual? below some more questions for the trainings from yesterday. and a small comment: for us the link to subscribe to the EINstein users is not working in the menu option - help. sunny regards, bettina &christoph email yesterday: some more comments: With which factors is PET calculated on the basis of FET? for gas, oil, etc? Heat demand proc: car industry: why is UPH higher then UPHproc when no HX is inserted? What is the main statement that we want to give with the "energy intensity" graphs? Is it used in the benchmark model or just for visulation of the values? on which basis is specific energy consumption per product calculated (SEC)? Should there be a differenc between the values stated in Q1/ product data/energy consumption per product and the SEC shown in the EnergyIntensityPanel? For car washing example: Q1: 0,15 mWh/product - reasonable, EnergyIntensityPanel: 0,03 kWh/product ? Benchmark/ Global energy intensity - is the panel working?? |
From: Hans S. <han...@en...> - 2008-10-27 08:11:42
|
Dear all, If someone had the problem to start the new einstein on SVN (no. 277) (error can't open database ...), this is why I copied my local einstein.ini instead of the release one. In No. 278 this is solved. Sorry, Hans -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |
From: Slawitsch, B. <Bet...@jo...> - 2008-10-26 21:09:18
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Dear all, Two small improvements still for the HR - sorry we come so late with this, but we just realised this now with the working car industry example. 1) for shell&tube no costs were calculated - sorry, I thought the error is in this double calc of PE2 before, but it was a typo in our code for the costs for shell&tube HX... Now realised, see PE.zip. Costs are quite high, because of the large area, as we have 100 W/m².K for gases as default values. If you click on change in the HR panel and change the alpha value to 500 or larger, area of the HX declines and the costs are again reasonable. 2) there was another typo in the exportHR.py - therfore we did not export the WHEE correctly...! this will change the car industry possibilities fopr heat pumps... Sorry for this very late improvements... If you like to include them still, onby the files! Ciao, bettina -----Ursprüngliche Nachricht----- Von: Hans Schweiger [mailto:han...@en...] Gesendet: Sonntag, 26. Oktober 2008 19:41 An: Slawitsch, Bettina Cc: claudia vannoni; EINSTEIN-developers Betreff: Re: AW: CAR MANUFACTURING no more change, too late ... I'll just trying that those things that work work without bugs ... it's too dangerous to make changes in moduleHR in last minute hurry - now it's impossible for me to see how this might affect in other parts ... sorry, Hans Slawitsch, Bettina wrote: > Dear Claudia, > thanks a lot for the car washing example and all your input!! CC works > ;), perfect! > We are still checking and preparing for tomorrow, some intermediate > result... > HX network - no costs: The problem is, that we go twice over the PE2 > calculation! Once for designing the HX, and then we run a second time > (Hans, did you foresee this, or did we introduce this by mistake?) > over the PE2 calc for calculating the energy flows - this is calulated > (as defined with Hans) with taking into account the existing HEX. This > means that we generated another inputHR.xml that includes the newly > built HX as existing HX. For existing HX we do not calculate costs, so > therefore the final outcome in the panel do not include costs. > so, the problem is in the sequence of calculations...Hans can we > change this? Where? in the moduleHR.py? or does it affect any other > calculation? > *Dear all,* > some more comments: > With which factors is PET calculated on the basis of FET? for gas, > oil, etc? > > Heat demand proc: car industry: why is UPH higher then UPHproc when no > HX is inserted? > > What is the main statement that we want to give with the "energy > intensity" graphs? Is it used in the benchmark model or just for > visulation of the values? > on which basis is specific energy consumption per product calculated > (SEC)? Should there be a differenc between the values stated in Q1/ > product data/energy consumption per product and the SEC shown in the > EnergyIntensityPanel? > For car washing example: Q1: 0,15 mWh/product - reasonable, > EnergyIntensityPanel: 0,03 kWh/product ? > CHP is simulating something when opening the panel - This is not the > autopilot - just the energy flows right? > How about the system performance data - is the module checking > something already? > The database just offers one CHP equipment - is this a real equipment > or just a dummy for the meanwhile? > Boiler module: Car washing - after adding a HX, a solar system is > designed, a very small heat pump (because no waste heat available), > remaining power needed = 1200 kW, peak. > The boiler module suggests 6000 kW boiler? we assume new boiler module > is under construction. > Benchmark/ Global energy intensity - is the panel working?? > best regards to all, > bettina & chris > > ------------------------------------------------------------------------ > *Von:* claudia vannoni [mailto:cla...@gm...] > *Gesendet:* Sonntag, 26. Oktober 2008 13:45 > *An:* Slawitsch, Bettina > *Cc:* EINSTEIN-developers; Hans Schweiger > *Betreff:* CAR MANUFACTURING > > Hello, > > Concerning car example, especially drying,.... due to: > > · Inexact modelisation in Einstein (in paint drying,e.g boundary of > the process and supply; e.g. heat recovery duplicated-> It has been > considered both internal heat recovery and external heat recovery for > the same energy flow. E.g.the temperature of the process should be > 200°C not 440°C. Heat supplied at this temp but needed at 200 in the > chamber, right?...). Some minor doubts on the background calculations > (e.g maintainace power -> 96 kW? between 440-335...about 240 kw with > the lower mass flow.) > > · Complexity of possible modelling according Einstein like it is now > (we found out at least 2 possibilities but not applicable in a basic > course where people should learn how to use the tool and not to > analyse complex situations.) > > ...We went for a simpler drying process at least in a way to have one > heat exchanger. We also changed some other parameters in air > conditioning (too high demand compared to the processes) and in > electricity (too high PEC demand with respect to PET); added bigger > surface etc. for solar thermal; added a too big steam boiler for > further optimisation; ...economics and so on in order to have the > possibilities to optimise/add something, otherwise the alternatives > where too poor. BUT: the resulting savings are still not so remarkable > in terms of PEC. It would have required much more time to change all > the processes. Benchamrking misses benchmarks in the DB. > > Important result from this test: > > In our opinion, the main limitation of Einstein now is the time > required for modelling the system: many assumptions and deep knowledge > of the background required. Improvements are required there. > > Still some problems in HeX: > > I deleted the internal heat recovery from the process model (drying) > since PE2 doesn't recognise the internal heat recovery and designs a > new HeX with the same power. It should definitely be avoided/checked > with more time. > > Costs for alternative Heat Recovery are 0. No time to investigate. > > For your info on the mcp criteria. Again in this case, HeX does not > take into consideration the offgas. so the resulting recovery is > limited. (note:BB now re-calc the necessary parameters for new units > but Hans did not included yet the results into questionnaire. Within > today) > > Boilers and ST (intermediate already on SourceF) work much more > better. In BB- design assistant for this case - the target minimum > efficiency is not reached simply because the temp is above 207°C (see > DB) and we have only 2 boilers working at 400°C. If statistics show > some 0 by equipment in normal since it depends on the energy > performance algorithm that follows the order of the equipment in the > cascade and/BUT does not read the minimum required supplying temp. > > Hope it helps and sorry for the delay!!!...and to go into details so > late. We couldn't do better ... Please feel free to change/adapt our > proposal for the Graz training if you are not happy with this. With > 1000 kW and/or with existing HeX (select the source/sink then click > again on the name of the Hex and/or exit the screen..it should run) > you pass the cchek. > sunny sunday > cla&co. > > > -- > ******************************************************* > University of Rome Sapienza > Department of Mechanics and Aeronautics, via Eudossiana 18 - 00184 Rome > Tel.: +39 0644585271 - 234 > e-mail: cla...@gm... <mailto:cla...@gm...> > cla...@un... <mailto:cla...@un...> > > ****************************************************** -- __________________________ Dr. Hans Schweiger energyXperts.BCN Ingeniería Termo-energética y Energías Renovables Thermo-energetical Engineering and Renewable Energies Creu dels Molers, 15, 2o 1a 08004 Barcelona (Spain) www.energyxperts.net e-mail: han...@en... tel/fax: +34 934 415 395 mobile: +34 697 267 280 |