Re: [TRNSYS-users] Likely bugs in Type655 and Type666

[a8304506@graduate.hku.hk]

Hello, Knut.

Thank you for your reply, but do you know if the information indicated in the
sample data file is appropriate, i.e. the first column is really the capacity
ratio while the second column is the COP ratio.  Your reply is appreciated.

Best Regards
LEE, Chun Kwong
Division of Building Science and Technology
City University of Hong Kong

Quoting knut.erik.enerstvedt@niva.no:

> Hello,
> 
> You are absolutely right about this. There is a mismatch between 
> documentation and example datafile on one side and source code on the 
> other. The first column in the datafile should consist of COP ratios, 
> while the second column should consist of capacity ratios. There have been 
> some postings about this on the list in the past.
> 
> Best regards,
> Knut Erik Enerstvedt
> 
>  
> 
> >Hello, all.
> 
> >I previously developed a parametric model for a water-cooled chiller.  I 
> used it
> >to compare the results with those based on Type666.  I then found that
> >calculated COP seemed to increase only mildly during the low-load period 
> when
> >using Type666.  I went through the source code and the related data 
> files.  I
> >found that the following statements appeared to be wrong:
> 
> >COP_RATIO=Y(1)
> >CAP_RATIO=Y(2)
> 
> >According to the data file, the first output should be the capacity ratio 
> while
> >the second output is the COP ratio.  The same case happened for Type655. 
> Am I
> >wrong?
> 
> >Best Regards
> >LEE, Chun Kwong
> >Division of Building Science and Technology
> >City University of Hong Kong
>
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