Paper Info
Title
Ecological Optimization and Parametric Study of an Irreversible Regenerative Modified Brayton Cycle with Isothermal Heat Addition
Abstract
An ecological optimization along with a detailed parametric study of an irreversible regenerative Brayton heat engine with isothermal heat addition have been carried out with external as well as internal irreversibilities. The ecological function is defined as the power output minus the power loss (irreversibility) which is ambient temperature times the entropy generation rate. The external irreversibility is due to finite temperature difference between the heat engine and the external reservoirs while the internal irreversibilities are due to nonisentropic compression and expansion processes in the compressor and the turbine respectively and the regenerative heat loss. The ecological function is found to be an increasing function of the isothermal-, sink - and regenerative-side effectiveness, isothermal-side inlet temperature, component efficiencies and sink-side temperature while it is found to be a decreasing function of the isobaric -side temperature and effectiveness and the working fluid heat capacitance rate. T he effects of the isobaric-side effectiveness are found to be more than those of the other parameters and the effects of turbine efficiency are found to be more than those of the compressor efficiency on all the performance parameters of the cycle.
Year
DOI
Venue
2003
10.3390/e5050377
Entropy
Keywords
Field
DocType
isothermal heat addition,: irreversible modified brayton cycle,regular combustion chamber,conver ging combustion chamber.,side effect,ambient temperature,heat loss
Ecology,Thermodynamics,Combined cycle,Isothermal process,Working fluid,Heat capacity rate,Brayton cycle,Gas compressor,Heat engine,Thermodynamic cycle,Mathematics
Journal
Volume
Issue
Citations 
5
5
3
PageRank 
References 
Authors
0.90
0
3
Name
Order
Citations
PageRank
Sudhir Kumar Tyagi131.23
Subhash Chandra Kaushik230.90
Vivek Tiwari32971391.08