[TRNSYS-users] Type 107 creating data file

[Yose Wandy]

Dear Trnsys-Experts,

 

Would anyone one happen to have an experience on calculating their own data
file for a single effect water fired absorption chiller (Type 107)

I am wondering if anybody have done a scheme on Excel-Spreadsheet or
something like that. I’m trying to make one and wondering if it is
dependable or not.

I also got confused on the documents supplied and hoped that someone could
help me clarify.

 

So first I calculated the “Cooling Power Required for the Rated Temperature”
with “mDot_CHW*Cp_CHW*(T_CHW_In-T_CHW_Out)”

And then I read from the diagram supplied by the company (PDF-File Page 8,
pardon the German language) the “Multipliers” on capacity rated and multiply
it with the “Rated Capacity”, resulting the “Available Cooling Capacity”
[Repeat for each Temperature].

Divide the resulting “Available Cooling Capacities” with the “Cooling Power
Required for the Rated Temperature” give me the “Fraction of Capacity” i.e.
the first required row for the data file. 

(Is this correct?)

 

For the “Fraction of Design energy input” I first calculated the “Heating
Power Resulted from the Rated Temperature” using
“mDot_HW*Cp_HW*(T_HW_In-T_HW_Out)”.

And read the diagrams (page 7) for the “Heat Input” (cooling mode) on
different Hot water temperature. I then divide the “Heat Input” by the
“Heating Power Resulted from the Rated Temperature” resulting the “Fraction
of Design Energy Input” 

(Is this also correct?)

 

Lastly, I’m wondering on how to get the “Fraction of design Load”?

Or maybe my approach is completely wrong?

 

Any comments, algorithms or examples for any other chillers would be very
helpful, I’m absolutely confused right now.

 

Thanks in advance.

 

Best regards,

 

----------------------------------------------------------------------------
----

Yose Wandy  B.Sc.

Wissenschaftlicher Mitarbeiter

 

Beschreibung: nur_logo_kleinOstfalia Hochschule für angewandte
Wissenschaften

Hochschule Braunschweig/Wolfenbüttel

Fakultät Versorgungstechnik

Institut für energieoptimierte Systeme  (EOS)

Prof. Dr.-Ing. Lars Kühl

 

Salzdahlumer Straße 46-48

D  - 38302 Wolfenbüttel

 

www.ostfalia.de/v

 

Tel. 0049 - 5331 / 939 – 40 550

Fax 0049 - 5331 / 939 – 40 552

y.wandy at ostfalia.de

 

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