[TRNSYS-users] feedwater heater question

[Ranga Babu]

Dear sir,

      i am very much grateful to your reply. i will surely in touch with
you for further guidance. Thank you very much sir.


On Tue, Jul 29, 2014 at 11:26 PM, Jeff Thornton <thornton at tess-inc.com>
wrote:

>  Looking at your setup, you'll need to use the CLOSED feedwater heater
> and not the open feedwater heater.  In the open feedwater heater, the steam
> mixes with the entering flow and there are only 3 streams; 2 in and 1 out.
> In the closed feedwater heater, the steam does not mix with the condensate
> and there are four streams; two in and two out.  In your simulation you
> should connect the outputs of the steam side into mixers that then mix with
> the condenser - see the attached image.
>
> The definitions of the pinchpoints, the TTD and all other inputs and
> parameters can be found by clicking the "More" button next to the name in
> the proforma.
>
>
>
> Jeff
>
>
>
> ---
> Jeff Thornton
> President - TESS LLC
> 22 N. Carroll Street, Madison WI USA 53703
> Office: (608) 274-2577  Fax: (608) 278-1475www.tess-inc.com
> E-Mail: thornton at tess-inc.com
>
>  On 07/29/2014 8:23 am, 1112102005 at ncepu.edu.cn wrote:
>
> Hi all，
>
> I would like to conduct a power plant simulation. The feedwater heater is
> coupled with drain cooler. Take the middle one FWH2 as an example: the
> feedwater from FWH3 was pumped into FWH2 and being heated by extraction
> steam from the steam turbine, afterwards, the hot feedwater will flow into
> FWH1. Besides, the drain water from FWH1 will flow into FWH2 to heat the
> feedwater, and finally, the drain water will have to go on heat FWH3. Could
> anyone tell me how to set the parameters ? I tried to connect the FWH2 with
> five lines: steam inlet and outlet, feedwater inlet and outlet, and drain
> water inlet but failed.
>
> As shown below, what does item 9 and 10 mean? And what does pinch point
> 1-3 means?
>
> Thanks
>
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-- 
* . . . . . *
*J A Ranga Babu*
*Research Scholar,*
*NIT Warangal,*
*+91 9441125854,*
*rangababu.nitw at gmail.com <rangababu.nitw at gmail.com>*
*jrangababu.mech at gmail.com <jrangababu.mech at gmail.com>*
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