[TRNSYS-users] Questions about TRNSYS/TRNFlow PID Controller to control Opening Factor in order to reduce CO2%
王洋
wanghongyang1767 at gmail.com
Wed Sep 1 08:45:44 PDT 2010
Dear all,
I chose the TYPE 23: PID controller, I design the system is that CONZ1(Mass
concentration of CO2% in zoon) as Setpoint of PID controller is
1000ppm*1.98(co2 density)/1.293(air density)=0.00164 (kg/kg), the Control
Signal's Output links to Control OP_Factor(Opening Factor of window), the
real CONT1 (Mass concentration of CO2% in zoon) of Zone as Controlled
Variable, but to my Surprise, CO2% still kept rising, PID cann't work, I try
to look for the reason all the day,but draw a blank. I think it's a bug or
other reasons? Please check the Attachment.
Millions of thanks!
Br.
wang
2010/8/31 <trnsys-users-request at cae.wisc.edu>
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> Today's Topics:
>
> 1. TRNSYS error (Tshewang Lhendup)
> 2. TRNSYS Training (Abdullatif Ben-Nakhi)
> 3. Error with Psychrometric Routine? (Fred Betz)
> 4. Re: Error with Psychrometric Routine? (David Bradley)
>
>
> ---------- 已转发邮件 ----------
> From: Tshewang Lhendup <t.lhendup at pgrad.unimelb.edu.au>
> To: trnsys-users at engr.wisc.edu
> Date: Tue, 31 Aug 2010 12:30:00 +1000
> Subject: [TRNSYS-users] TRNSYS error
> Dear all,
>
> I am working on simulation of a solar combined borehole thermal storage for
>
> heating and cooling residential buildings using TRNSYS 17. The main Types
> used in the model are Type 505b, 557a and 56.When I run the simulation I
> get
> following error.
>
> TRNSYS Message 427 : An OUTPUT from the specified component model has
> been written to the global OUT array in a location beyond the allocated
> number of outputs from this model. Please check the component carefully to
> insure that INFO(6) is set correctly. The simulation has been aborted to
> avoid problems caused by over-writing the outputs from other component
> models Reported information : Not available.
>
> As suggested in the TRNSYS archive, I looked at the *.lst and *.log files.
> The error is generated by the Type 505. This error is very frequent and
> most
> of the time I am able to debug by trial and error. But this time, I am not
> able to do it. I suspect with the array size. Does any one have know what I
>
> need to do. I cannot proceed further in my work due to this error.
>
> With best regards,
> Tshewang Lhendup
>
>
>
> ---------- 已转发邮件 ----------
> From: Abdullatif Ben-Nakhi <abdnakhi at yahoo.com>
> To: TRNSYS-users at cae.wisc.edu
> Date: Mon, 30 Aug 2010 20:09:38 -0700 (PDT)
> Subject: [TRNSYS-users] TRNSYS Training
> Dear all,
>
> I will travel to Leeds, UK within the coming 10 days and I will stay there
> for about 10 days. I Wonder if I get TRNSYS training during my stay period
> at Leeds. I am ready to travel to cities not far from Leeds for the TRNSYS
> beginners training course. Kindly, direct me to such training course.
>
> Many thanks in advance,
>
> Ben Nakhi
>
>
>
> ---------- 已转发邮件 ----------
> From: Fred Betz <fbetz at aeieng.com>
> To: "TRNSYS-users at cae.wisc.edu" <TRNSYS-users at cae.wisc.edu>
> Date: Tue, 31 Aug 2010 09:19:41 -0500
> Subject: [TRNSYS-users] Error with Psychrometric Routine?
>
> I am passing 22.2 C dry bulb and 14.0 C wet bulb to the psychrometric
> routine (type 33f) and the output is 22.2 C dry bulb, 6. 8 C wet bulb and 0%
> RH, which is causing an error in the psychrometric routine for a total
> energy wheel.
>
>
>
> The output should be approximately 60% RH.
>
>
>
> The humidity ratio is also showing 0.0.
>
>
>
> Please advise,
>
>
>
> Fred
>
>
>
>
>
> *Fred Betz** *PhD., LEED AP
> Sustainable Systems Analyst
>
>
>
> *AEI* | AFFILIATED ENGINEERS, INC.
> 5802 Research Park Blvd. | Madison, WI 53719
>
> P: 608.236.1175 | F: 608.238.2614
> fbetz at aeieng.com | *www.aeieng.com*
>
>
>
>
>
>
> ---------- 已转发邮件 ----------
> From: David Bradley <bradley at tess-inc.com>
> To: Fred Betz <fbetz at aeieng.com>
> Date: Tue, 31 Aug 2010 10:33:41 -0500
> Subject: Re: [TRNSYS-users] Error with Psychrometric Routine?
> Fred,
> perhaps I need to see the project. If you are passing 22.2 dry bulb and
> 14 wetbulb to Type33, it should just be spitting back the exact same thing
> with a calculation of RH. I just tried that and I'm getting an RH of 40% at
> 1atm pressure. When you say there is a 6.8C wetbulb, is that on the other
> side of the energy wheel?
> David
>
>
> On 8/31/2010 09:19, Fred Betz wrote:
>
> I am passing 22.2 C dry bulb and 14.0 C wet bulb to the psychrometric
> routine (type 33f) and the output is 22.2 C dry bulb, 6. 8 C wet bulb and 0%
> RH, which is causing an error in the psychrometric routine for a total
> energy wheel.
>
>
>
> The output should be approximately 60% RH.
>
>
>
> The humidity ratio is also showing 0.0.
>
>
>
> Please advise,
>
>
>
> Fred
>
>
>
>
>
> *Fred Betz** *PhD., LEED AP
> Sustainable Systems Analyst
>
>
>
> *AEI* | AFFILIATED ENGINEERS, INC.
> 5802 Research Park Blvd. | Madison, WI 53719
>
> P: 608.236.1175 | F: 608.238.2614
> fbetz at aeieng.com | *www.aeieng.com*
>
>
>
>
>
>
> _______________________________________________
> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>
>
> --
> ***************************
> David BRADLEY
> Principal
> Thermal Energy Systems Specialists, LLC
> 22 North Carroll Street - suite 370
> Madison, WI 53703 USA
>
> P:+1.608.274.2577
> F:+1.608.278.1475bradley at tess-inc.com
> http://www.tess-inc.comhttp://www.trnsys.com
>
>
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