[TRNSYS-users] cogenration feedwater heater to be connected with the next one

Jeff Thornton thornton at tess-inc.com
Fri Jul 18 07:17:52 PDT 2014

A schematic showing the system you would like to simulate would help us answer your question.  Include short descriptions on the diagram and we'll do our best to help you get started.

Jeff Thornton

Sent from my iPhone

> On Jul 17, 2014, at 9:47 AM, 1112102005 at ncepu.edu.cn wrote:
> Hi,
> I purchased TRNSYS 17 and all stec library. From literature(around 2005) I see that someone once used the feedwater heater to be connected with five parts: source steam inlet and oulet; feedwater inlet and outlet, another feedwater heater for drain water heat recovery. In my case, however, Type 622 can only be connected with 4 parts:
> Steam Temperature at Inlet
> Steam Flow Rate at Inlet
> Steam Pressure at Inlet
> Steam Enthalpy at Inlet
> Condensate Temperature at Inlet
> Condensate Flow Rate at Inlet
> Condensate Pressure at Inlet
> Condensate Enthalpy at Inlet
> Terminal Temperature Difference
> Drain Cooler Temperature Difference
> Outlet Steam Temperature
> Outlet Steam Flow-Rate
> Outlet Steam Pressure
> Outlet Steam Enthalpy
> Outlet Condensate Temperature
> Outlet Condensate Flowrate
> Outlet Condensate Pressure
> Outlet Condensate Enthalpy
> Could you please inform me how to find out the fifth connection part? The feedwater must be heated by the extration steam as well as the hot water from another heater, and the steam and hot water are seperated, also the feedwater is seperated from the them.
> Thank you !
> Jingxiao Han 
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