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Thermodynamic Analysis of Combined Cycle District Heating System
Abstract
This paper presents a thermodynamic analysis of
the University of Massachusetts' Combined Heat and
Power (CHP) District Heating System. Energy and
exergy analyses are performed based on the first and
second laws of thermodynamics for power generation
systems that include a 10 MW Solar combustion gas
turbine, a 4-MW steam turbine, a 100,000 pph heat
recovery steam generator (HRSG), three 125,000 pph
package boilers, and auxiliary equipment.
In the analysis, actual system data is used to
assess the district heating system performance,
energy and exergy efficiencies, exergetic
improvement potential and exergy losses. Energy and
exergy calculations are conducted for the whole year
on an hourly basis. System efficiencies are calculated
for a wide range of component operating loads. The
results show how thermodynamic analysis can be
used to identify the magnitudes and location of
energy losses in order to improve the existing system,
processes or components.
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Citation
Suresh, S.; Gopalakrishnan, H.; Kosanovic, D. (2011). Thermodynamic Analysis of Combined Cycle District Heating System. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /94802.