Author: Feidt Michel Costea Monica
Publisher: MDPI
E-ISSN: 1996-1073|5|9|3701-3722
ISSN: 1996-1073
Source: Energies, Vol.5, Iss.9, 2012-09, pp. : 3701-3722
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The paper presents a comparison of various CHP system configurations, such as Vapour Turbine, Gas Turbine, Internal Combustion Engine, External Combustion Engine (Stirling, Ericsson), when different thermodynamic criteria are considered, namely the first law efficiency and exergy efficiency. Thermodynamic optimization of these systems is performed intending to maximize the exergy, when various practical related constraints (imposed mechanical useful energy, imposed heat demand, imposed heat to power ratio) or main physical limitations (limited heat availability, maximum system temperature allowed, thermo-mechanical constraints) are taken into account. A sensitivity analysis to model parameters is given. The results have shown that the various added constraints were useful for the design allowing to precise the influence of the model main parameters on the system design. Future perspective of the work and recommendations are stated.
Related content
By Baral Suresh Kim Dokyun Yun Eunkoo Kim Kyung Chun
Energies, Vol. 8, Iss. 2, 2015-01 ,pp. :