[esp-r] Re: esp-r Digest, Vol 32, Issue 14
Christian Anker Hviid
cah at byg.dtu.dk
Mon Mar 30 18:20:33 BST 2009
Hello Radek
My experience with contaminants is that the correct values are in fact calculated, but the res module does not display the values properly.
I am not sure, but I think you need to say no to 'hourly results integration' when you set the timestep. There is an exemplar under technical features that simulates and displays CO2 levels properly.
Best regards
Christian Anker Hviid
Industrial PhD candidate
DTU Byg
Technical University of Denmark
Brovej, building 118
DK-2800 Lyngby
Phone DTU: +45 4525 1886
Phone Alectia: +45 8819 1365
Mail: cah at byg.dtu.dk
________________________________
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Sendt: ma 30-03-2009 15:13
Til: esp-r at lists.strath.ac.uk
Emne: esp-r Digest, Vol 32, Issue 14
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Today's Topics:
1. Contaminant peaks (Radoslaw Gorzenski)
2. Question about PV electricity production
(francesco.frontini at polimi.it)
3. Re: Question about PV electricity production
(Ian Beausoleil-Morrison)
----------------------------------------------------------------------
Message: 1
Date: Mon, 30 Mar 2009 05:40:57 +0200
From: Radoslaw Gorzenski <radoslaw.gorzenski at put.poznan.pl>
Subject: [esp-r] Contaminant peaks
To: esp-r at lists.strath.ac.uk
Message-ID: <fc7ec8453c7e.49d05b69 at put.poznan.pl>
Content-Type: text/plain; charset="big5"
Dear all,
I simulate contaminant levels in single room with casual occupant gains and constant mass flow rate component. I use #6 ?personal CO2 emission? as a source/sink model in *.ctm file. Time steps are 6 minutes for both zone and contaminant simulation.
With single period in *.opr file the contaminant level is a straight line of proper value.
As I try to use more periods in *.opr file - even with same gains in each period I get strange peaks in contaminant level. I put the diagrams with the contaminant value for 1, 2, 3, 4, 6, 8, 12 and 24 periods a day on www: http://www.gorzen.poznet.com.pl/espr/peaks.htm. My model is also available to download: http://www.gorzen.poznet.com.pl/espr/cont.zip
Something wrong with my model?
Below are some lines from my *.opr file with 4 periods a day.
4 # number of casual gains in day type: weekdays
# type, start, stop, sens, latent, rad_frac, conv_frac
1, 0, 6, 540.0, 180.0, 0.500, 0.500
1, 6, 12, 540.0, 180.0, 0.500, 0.500
1, 12, 18, 540.0, 180.0, 0.500, 0.500
1, 18, 24, 540.0, 180.0, 0.500, 0.500
Flow is constant all the time, gains are the same in all periods. What is wrong?
The only way I see to do it correctly is to add source as #6 personal CO2 emission model answering no to the questions "Take metabolic rates from occupancy casual gains (defined in operation files)" and then to describe the number of people, activity level and occupation time. Then it works proper, without any peaks. But it is not the solution. I can not simulate separate CO2 emissions for weekdays and Sundays.
Regards,
Radek Gorzenski
------------------------------
Message: 2
Date: Mon, 30 Mar 2009 13:51:05 +0200
From: francesco.frontini at polimi.it
Subject: [esp-r] Question about PV electricity production
To: esp-r at lists.strath.ac.uk
Message-ID: <20090330135105.kyuki9yggsk0cogs at webmail.polimi.it>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Hi all,
is there anyone who work with the module of PV?
I would like to know about the angular dependency of PV in ESP-r. How
the angle of incidence influences the PV electricity production? Where
can I found the code which is deal with that?
Thank you very much in advance.
Francesco Frontini
------------------------------
Message: 3
Date: Mon, 30 Mar 2009 09:05:49 -0400
From: "Ian Beausoleil-Morrison" <ibeausol at mae.carleton.ca>
Subject: [esp-r] Re: Question about PV electricity production
To: <esp-r at lists.strath.ac.uk>
Message-ID: <008501c9b138$3f52b680$bdf82380$@carleton.ca>
Content-Type: text/plain; charset="us-ascii"
Dear Francesco,
ESP-r's three PV models are found in src/esrubld/spmatl.F. Refer to the
subroutines SPMCMP1, SPMCMP2, and SPMCMP5. The enclosed paper may be of
interest to you.
Regards,
- Ian
Ian Beausoleil-Morrison, Ph.D., P.Eng.
Associate Professor and Canada Research Chair
Mechanical and Aerospace Engineering
Carleton University
1125 Colonel By Drive
Ottawa, Ontario, Canada
K1S 5B6
Ian_Beausoleil-Morrison at carleton.ca
+1 (613) 520-2600 ext 3022 (telephone)
+1 (613) 520-5715 (facsimile)
www.mae.carleton.ca/maehtmls/beausoleil.html
> -----Original Message-----
> From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-
> bounces at lists.strath.ac.uk] On Behalf Of francesco.frontini at polimi.it
> Sent: March 30, 2009 7:51
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r] Question about PV electricity production
>
> Hi all,
> is there anyone who work with the module of PV?
> I would like to know about the angular dependency of PV in ESP-r. How
> the angle of incidence influences the PV electricity production? Where
> can I found the code which is deal with that?
> Thank you very much in advance.
>
> Francesco Frontini
>
>
>
>
> _______________________________________________
> esp-r mailing list
> esp-r at lists.strath.ac.uk
> http://lists.strath.ac.uk/mailman/listinfo/esp-r
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