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Net Power Optimization of an Irreversible Otto Cycle Using ECOP and Ecological Function


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DOI: https://doi.org/10.15866/ireme.v9i1.5045

Abstract


This paper presents an analysis of an irreversible Otto cycle aiming to optimize the net power through ECOP and ecological function. The studied cycle operates between two thermal reservoirs of infinite thermal capacity, with internal irreversibilities derived from non-isentropic behavior of compression and expansion processes, irreversibilities from thermal resistance in heat exchangers and heat leakage from the high temperature reservoir to the low temperature reservoir. Analytical expressions are applied for the power outputs optimized by the ECOP, by the ecological function and by the maximum power criteria, in conjunction with a graphic analysis, in which some cycle operation parameters are analyzed for an increased comprehension of the effects of the irreversibilities in the optimized power.
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Keywords


Otto; ECOP; Ecological Function; Optimization

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References


Musthafah, M.T., Safarudin, H., Bakar, R.A., Salim, M.A., Mohd Shafie, A.M., Feasibility study for energy recovery from internal combustion engine's waste heat, (2014) International Review of Mechanical Engineering (IREME), 8 (1), pp. 223-227.

Sapate, K.D., Tikekar, A.N., Engine mapping for improvement in fuel efficiency of two stroke SI engine, (2013) International Review of Mechanical Engineering (IREME), 7 (3), pp. 392-394.

J. Chen, The maximum power output and maximum efficiency of an irreversible Carnot heat engine, Journal of Applied Physics, Vol. 27, pp. 1144-1149, 1994.
http://dx.doi.org/10.1088/0022-3727/27/6/011

F. L. Curzon, B. Ahlborn, Efficiency of a Carnot engine at a maximum power output, American Journal of Physics, Vol. 43, pp. 22-24, 1975.
http://dx.doi.org/10.1119/1.10023

Y. Haseli, Performance of irreversible heat engines at minimum entropy generation, Applied Mathematical Modelling, Vol. 37, pp. 9810-9817, 2013.
http://dx.doi.org/10.1016/j.apm.2013.05.010

F. Angulo-Brown, An ecological optimization criterion for finite-time heat engines, Journal of Applied Physics, Vol. 69, pp. 7465-7469, 1991.
http://dx.doi.org/10.1063/1.347562

Z. Yan, Comment on “An ecological optimization criterion for finite-time heat, Journal of Applied Physics, Vol. 73, pp. 3583, 1991.
http://dx.doi.org/10.1063/1.354041

C. Y. Cheng, C. K. Chen, Ecological optimization of an endoreversible Brayton cycle, Energy Conversion and Management, Vol. 39, pp. 33-44, 1998.
http://dx.doi.org/10.1016/s0196-8904(96)00180-x

Y. Ust, B. Sahin, S. Sogut, Performance analysis and optimization of an irreversible Dual cycle based on an ecological coefficient of performance criterion, Applied Energy, Vol. 82, pp. 23-39, 2004.
http://dx.doi.org/10.1016/j.apenergy.2004.08.005

Y. Ust, B. Sahin, A. Kodal, Performance analysis of an irreversible Brayton heat engine based on ecological coefficient of performance criterion, International Journal of Thermal Sciences, Vol. 45, pp. 94-101, 2006.
http://dx.doi.org/10.1016/j.ijthermalsci.2005.04.005

Jack Chin Kok Yew, Stella Morris, Morris A. G. Ezra, Investigation on the Environmental Impacts of Green Car Batteries, (2013) International Journal on Engineering Applications (IREA), 1 (2), pp. 158-164.


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