Re: [TRNSYS-users] PVT (type560) in Series Connection

[Cheong Chu Siang Jesper <u0706752@nus.edu.sg>]

Hi! Yes I've since verified it and it's working.
Sorry for the trouble!

Kind Regards,
Jesper
________________________________________
From: Matt Duffy [duffy@tess-inc.com]
Sent: 10 October 2011 21:51
To: Cheong Chu Siang Jesper; trnsys-users@cae.wisc.edu
Subject: Re: [TRNSYS-users] PVT (type560) in Series Connection

Dear Jesper,

I just implemented a simple simulation with two Type560's in series and it ran fine with intuitive results - the outlet temperature of the second collector was higher during operation. Please double-check your simulation connections.

Best regards,

Matt Duffy

----- Original Message -----
From: "Cheong Chu Siang Jesper" <u0706752@nus.edu.sg>
Sent: Fri, September 30, 2011 12:12
Subject: [TRNSYS-users] PVT (type560) in Series Connection



Hello!

I'm modelling a 52-module PVT cluster for co-generation of hotwater/electricity and
the configuration of the modules are in a 13x4 arrangement (13 parallel lines with 4
collectors each in series). Single tank.
Type 560 is used for all 52 modules while single tank is represented by type 534.
However, tank temperatures were found to be at least 5 deg lower than expected.
Also, significant flowrate variations did not change collector outlet temperatures
much.
This seems to suggest that the 560 models do not factor in the effect of series
connections, and to test this i set up a basic system consisting of 2 560s in
series, pump(w/ differential control) and single type534.
Outlet temps frm both 560s were taken and they were the same.

Some qns:
1. Did i miss out anything when dealing with the abovementioned models?
2. Or is this a limitation of the 560 models?
3. If this is a limitation, are there any other PVT models available that can fulfil
my requirements?

Help is greatly appreciated!
Jesper
National University of Singapore

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