APPLICATION OF A NOVEL THERMO-ECOLOGICAL PERFORMANCE CRITERION: EFFECTIVE ECOLOGICAL POWER DENSITY (EFECPOD) TO A JOULE-BRAYTON CYCLE (JBC) TURBINE

Year 2017, , 1478 - 1488, 19.09.2017

Güven Gonca

https://doi.org/10.18186/journal-of-thermal-engineering.338876

Cited By: 3

Abstract

This study presents an
application of a new performance analysis criterion named as Effective
Ecological Power Density (EFECPOD) to a Joule-Brayton cycle (JBC) turbine. The
turbine performance is expressed a single value by the proposed criterion using
effective efficiency, effective power, cycle temperature ratio and volume. NOx
formation and turbine dimensions are considered by the cycle temperature ratio
and turbine volume, respectively. The turbine volume is also related to
production cost of the heat engine. Therefore, the proposed criterion is
essential for multi purpose optimization. Furthermore, this criterion can be
developed and applied to the other gas cycle and heat engines. Also, the
influences of engine design parameters such as cycle temperature ratio,
pressure ratio, turbine speed, and equivalence ratio on the EFECPOD have been
examined based on Finite-Time Thermodynamics Modelling (FTTM). In order to
obtain realistic results, temperature-dependent specific heats for working
fluid have been used and heat transfer and exhaust output losses have been
taken into consideration. The results presented could be an essential tool for
JBC turbine designers.

Keywords

Joule-Brayton Cycle, Thermodynamic Analysis, Performance Optimization, Gas Turbine

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