[TRNSYS-users] regarding changes in components input output

[David BRADLEY]

Mayank,
   I would imagine that the required area would change depending on how 
much sun there is at any given point in time. Since it is not possible 
to change the collector array constantly in an actual built system, 
normally the way a simulation would be carried out is to do some hand 
(or Excel) calculations to determine the area required at a predefined 
solar condition (maybe at peak solar availability, maybe some average 
solar availability) and then to run the simulation with that area. If 
the hand/Excel calculations aren't working, you could do trial and error 
- choose an area and see if it meets the absorption machine's 
requirements. If not, increase the area.
Best,
  David


On 9/7/2011 23:44, Mayank Bhatnagar wrote:
>
> *From:*Mayank Bhatnagar [mailto:mayank.23aug at gmail.com]
> *Sent:* Thursday, September 08, 2011 10:10 AM
> *To:* 'thornton at tess-inc.com'
> *Subject:* RE: [TRNSYS-users] regarding changes in components input output
>
> Sir,
>
> I am working on Modeling of Solar vapor absorption. In this case if I 
> calculate the generator heat required in Type 107 absorption chiller 
> for specific capacity of chiller and useful heat from the collector 
> for unit area then I can calculate the required area to completely 
> offset the absorption chiller from electricity to solar energy for 
> year around. Please guide me in this context. I have already done this 
> analytically in excel but there I couldn’t get exact result.
>
> Thank you.
>
> Mayank
>
> *From:* David BRADLEY [d.bradley at tess-inc.com]
>
> *Sent:* Wed 9/7/2011 10:26 PM
>
> *Subject: *Re: [TRNSYS-users] regarding changes in components input output
>
> Mayank,
>   In order to add an output to a component, you need to modify the 
> Type's source code and recompile the TRNDll using a Fortran compiler. 
> Actually changing an input variable to an output variable is a fairly 
> complex procedure because by definition, the component's performance 
> depends on its input values. In this case, the performance of your 
> collector depends on the collector area. If you want to change the 
> area from an input to an output, you also need to figure out how you 
> are going to calculate the collector performance without without 
> knowing the collector area in advance.
> Best,
>  David
> *----- Original Message -----*
> *From:* "Mayank Bhatnagar" <mayank.23aug at gmail.com>
> *Sent:* Wed, September 7, 2011 0:23
> *Subject:* [TRNSYS-users] regarding changes in components input output
>
> Hello everyone,
>
> I am working on solar vapor absorption machine. For this I have to 
> make some changes in TYPE 73 FPC input output. I need collector area 
> in output. How can I change input to output please help me out.
>
> Thank you
>
> *Mayank Bhatnagar*
>
> *M.Tech. (Energy Engineering)*
>
> *Malaviya National Institute of Technology,*
>
> *Jaipur (INDIA)*
>
> *contact no.- +91-9983816468*
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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