Nothing Special   »   [go: up one dir, main page]

Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter July 24, 2019

Performance Analysis of Diesel Cycle under Efficient Power Density Condition with Variable Specific Heat of Working Fluid

  • Roshan Raman ORCID logo EMAIL logo and Naveen Kumar

Abstract

A novel realistic Work Criteria Function (WCF) approach has been used to analyze the ideal air-standard Diesel cycle. The WCF formulation gives rise to a new performance criterion which is termed as efficient power density (EPD). Thermodynamic analysis under maximum efficient power density (MEPD) conditions has been performed and compared with other available performance criteria using variable specific heats of the working fluid. The results obtained from this analysis prove that the engine designed under MEPD conditions is very efficient and the size of the engine is reduced significantly compared to those designed under maximum efficient power (MEP), maximum power density (MPD), and maximum power (MP) criteria. Harmful emissions like NO x may decrease considerably at higher values of the maximum cycle temperature ratio (ξ). The effect of variable specific heats of operational fluid on the actual cycle’s performance has a significant impact on engine performance and should be incorporated when evaluating practical cycle engines. The results obtained in the current study have scientific importance and could be an essential guide for the design of real Diesel engines by engine manufacturers.

  1. Conflict of interest: The authors declare that they have no conflict of interest.

References

[1] J. B. Heywood, Internal Combustion Engine Fundamentals, 2018. DOI: 10987654.Search in Google Scholar

[2] W. Zhang, L. Chen, F. Sun and C. Wu, Exergy-based ecological optimal performance for a universal endoreversible thermodynamic cycle, Int. J. Ambient Energy (2007), DOI: 10.1080/01430750.2007.9675023.Search in Google Scholar

[3] D. Xia, L. Chen, F. Sun and C. Wu, Universal ecological performance for endo-reversible heat engine cycles, Int. J. Ambient Energy (2006), DOI: 10.1080/01430750.2006.9674997.Search in Google Scholar

[4] L. Chen, W. Zhang and F. Sun, Power, efficiency, entropy-generation rate and ecological optimization for a class of generalized irreversible universal heat-engine cycles, Appl. Energy (2007), DOI: 10.1016/j.apenergy.2006.09.004.Search in Google Scholar

[5] G. Maheshwari, S. Chaudhary and S. K. Somani, Optimum criteria on the performance of a generalised irreversible Carnot heat engine based on a thermoeconomic approach, Int. J. Ambient Energy (2007), DOI: 10.1080/01430750.2007.9675044.Search in Google Scholar

[6] B. Sahin, U. Kesgin, A. Kodal and N. Vardar, Performance optimization of a new combined power cycle based on power density analysis of the dual cycle, Energy Convers. Manag. (2002), DOI: 10.1016/S0196-8904(01)00149-2.Search in Google Scholar

[7] J. -L. Zheng, L. -G. Chen, F. -R. Sun and Y. Jia, Power density optimization of an endoreversible Brayton cycle coupled to variable-temperature heat reservoirs, J. Propuls. Technol. (2001).Search in Google Scholar

[8] K. Patodi and G. Maheshwari, Performance analysis of an Atkinson cycle with variable specific heats of the working fluid under maximum efficient power conditions, Int. J. Low Carbon Technol. (2013). DOI: 10.1093/ijlct/cts055.Search in Google Scholar

[9] A. Al-Sarkhi, J. O. Jaber, M. Abu-Qudais and S. D. Probert, Effects of friction and temperature-dependent specific-heat of the working fluid on the performance of a Diesel-engine, Appl. Energy (2006), DOI: 10.1016/j.apenergy.2005.01.001.Search in Google Scholar

[10] R. Ebrahimi and L. Chen, Effects of variable specific heat ratio of working fluid on the performance of an irreversible Diesel cycle, Int. J. Ambient Energy (2010), DOI: 10.1080/01430750.2010.9675107.Search in Google Scholar

[11] A. Sakhrieh, E. Abu-Nada, B. Akash, I. Al-Hinti and A. Al-Ghandoor, Performance of diesel engine using gas mixture with variable specific heats model, J. Energy Inst. (2010), DOI: 10.1179/014426010X12839334040852.Search in Google Scholar

[12] B. S. Chauhan, N. Kumar, H. M. Cho and H. C. Lim, A study on the performance and emission of a diesel engine fueled with Karanja biodiesel and its blends, Energy (2013), DOI: 10.1016/j.energy.2013.03.083.Search in Google Scholar

[13] H. S. Pali, N. Kumar and Y. Alhassan, Performance and emission characteristics of an agricultural diesel engine fueled with blends of Sal methyl esters and diesel, Energy Convers. Manag. (2015), DOI: 10.1016/j.enconman.2014.10.064.Search in Google Scholar

[14] Y. Ge, L. Chen and F. Sun, Progress in finite time thermodynamic studies for internal combustion engine cycles, Entropy (2016), DOI: 10.3390/e18040139.Search in Google Scholar

[15] Y. L. Ge, L. Chen and F. R. Sun, Finite-time thermodynamic modelling and analysis of an irreversible diesel cycle, Proc. Inst. Mech. Eng., Part D, J. Automob. Eng. (2008), DOI: 10.1243/09544070JAUTO695.Search in Google Scholar

[16] L. Chen, C. Wu and F. Sun, Finite time thermodynamic optimization or entropy generation minimization of energy systems, J. Non-Equilib. Thermodyn. (1999), DOI: 10.1515/JNETDY.1999.020.Search in Google Scholar

[17] J. Lin, Z. Xu, S. Chang and H. Yan, Finite-time thermodynamic modeling and analysis of an irreversible Miller cycle working on a four-stroke engine, Int. Commun. Heat Mass Transf. (2014), DOI: 10.1016/j.icheatmasstransfer.2014.03.012.Search in Google Scholar

[18] Y. Ge, L. Chen and X. Qin, Effect of specific heat variations on irreversible Otto cycle performance, Int. J. Heat Mass Transf. (2018), DOI: 10.1016/j.ijheatmasstransfer.2018.01.132.Search in Google Scholar

[19] M. Atmaca and M. Gumus, Power and efficiency analysis of diesel cycle under alternative criteria, Arab. J. Sci. Eng. (2012), DOI: 10.1007/s13369-013-0773-0.Search in Google Scholar

[20] G. Gonca, Performance analysis of an Atkinson cycle engine under effective power and effective power density conditions, Acta Phys. Pol. A (2017). DOI: 10.12693/APhysPolA.132.1306.Search in Google Scholar

[21] A. Hajipour, M. M. Rashidi, M. Ali, Z. Yang and O. Anwar Bég, Thermodynamic Analysis and Comparison of the Air-Standard Atkinson and Dual-Atkinson Cycles with Heat Loss, Friction and Variable Specific Heats of Working Fluid, Arab. J. Sci. Eng. (2016), DOI: 10.1007/s13369-015-1903-7.Search in Google Scholar

[22] S. S. Hou, Heat transfer effects on the performance of an air standard Dual cycle, Energy Convers. Manag. (2004), DOI: 10.1016/j.enconman.2003.12.013.Search in Google Scholar

[23] R. Ebrahimi, Performance analysis of a dual cycle engine with considerations of pressure ratio and cut-off ratio, Acta Phys. Pol. A (2010). doi:10.12693/APhysPolA.118.534.10.12693/APhysPolA.118.534Search in Google Scholar

[24] S. S. Hou, Comparison of performances of air standard Atkinson and Otto cycles with heat transfer considerations, Energy Convers. Manag. (2007), DOI: 10.1016/j.enconman.2006.11.001.Search in Google Scholar

[25] P. Y. Wang and S. S. Hou, Performance analysis and comparison of an Atkinson cycle coupled to variable temperature heat reservoirs under maximum power and maximum power density conditions, Energy Convers. Manag. (2005), DOI: 10.1016/j.enconman.2004.11.005.Search in Google Scholar

[26] M. Hashemi Gahruei, H. Shahmirzae Jeshvaghani, S. Vahidi and L. Chen, Mathematical modeling and comparison of air standard Dual and Dual-Atkinson cycles with friction, heat transfer and variable specific-heats of the working fluid, Appl. Math. Model. (2013), DOI: 10.1016/j.apm.2013.02.025.Search in Google Scholar

[27] Y. Ge, L. Chen, F. Sun and C. Wu, Performance of reciprocating Brayton cycle with heat transfer, friction and variable specific heats of working fluid, Int. J. Ambient Energy (2008), DOI: 10.1080/01430750.2008.9675059.Search in Google Scholar

[28] Z. Wu, L. Chen, Y. Ge and F. Sun, Thermodynamic optimization for an air-standard irreversible Dual-Miller cycle with linearly variable specific heat ratio of working fluid, Int. J. Heat Mass Transf. (2018), DOI: 10.1016/j.ijheatmasstransfer.2018.03.049.Search in Google Scholar

[29] R. Ebrahimi, Thermodynamic simulation of performance of an irreversible otto cycle with engine speed and variable specific heat ratio of working fluid, Arab. J. Sci. Eng. (2012), DOI: 10.1007/s13369-013-0769-9.Search in Google Scholar

[30] G. Gonca and B. Sahin, Performance optimization of an air-standard irreversible Dual-Atkinson cycle engine based on the ecological coefficient of performance criterion, Sci. World J. (2014), DOI: 10.1155/2014/815787.Search in Google Scholar

[31] B. A. Akash, Effect of heat transfer on the performance of an air-standard diesel cycle, Int. Commun. Heat Mass Transf. (2001), DOI: 10.1016/S0735-1933(01)00216-0.Search in Google Scholar

[32] Y. -L. Ge, L. -G. Chen and F. -R. Sun, Universal performance of internal combustion engines with variable specific heart of working fluid, J. Eng. Thermophys. (2006).Search in Google Scholar

[33] Y. Zhao and J. Chen, Optimum performance analysis of an irreversible Diesel heat engine affected by variable heat capacities of working fluid, Energy Convers. Manag. (2007), DOI: 10.1016/j.enconman.2007.03.014.Search in Google Scholar

[34] G. Maheshwari, S. Chaudhary and S. K. Somani, Performance analysis of endoreversible combined Carnot cycles based on new maximum efficient power (MEP) approach, Int. J. Low Carbon Technol. (2010). DOI: 10.1093/ijlct/ctp036.Search in Google Scholar

[35] M. Huleihil, Work Criteria Function of Irreversible Heat Engines, Phys. Res. Int. (2015), DOI: 10.1155/2014/890713.Search in Google Scholar

[36] R. Raman and G. Maheshwari, Performance analysis of a generalised radiative heat engine based on new maximum efficient power density approach, Int. J. Ambient Energy (2017), DOI: 10.1080/01430750.2016.1222962.Search in Google Scholar

[37] L. Chen, J. Wang, F. Sun and C. Wu, Power density optimisation of an irreversible variable-temperature heat reservoir closed intercooled regenerated Brayton cycle, Int. J. Ambient Energy (2009), DOI: 10.1080/01430750.2009.9675086.Search in Google Scholar

[38] Y. Ge, L. Chen, F. Sun and C. Wu, Effects of heat transfer and variable specific heats of working fluid on performance of a Miller cycle, Int. J. Ambient Energy (2005), DOI: 10.1080/01430750.2005.9674991.Search in Google Scholar

[39] G. Gonca, B. Sahin, A. Parlak, V. Ayhan, I. Cesur and S. Koksal, Application of the Miller cycle and turbo charging into a diesel engine to improve performance and decrease NO emissions, Energy (2015), DOI: 10.1016/j.energy.2015.08.032.Search in Google Scholar

[40] C. Liu, L. Chen and F. Sun, Influence of variable specific heats of working fluid on performance of an endoreversible Meletis-Georgiou cycle, Int. J. Ambient Energy (2012), DOI: 10.1080/01430750.2011.629804.Search in Google Scholar

[41] Y. Ge, L. Chen, F. Sun and C. Wu, Thermodynamic simulation of performance of an Otto cycle with heat transfer and variable specific heats of working fluid, Int. J. Therm. Sci. (2005), DOI: 10.1016/j.ijthermalsci.2004.10.001.Search in Google Scholar

[42] Y. Ge, L. Chen, F. Sun and C. Wu, The effects of variable specific heats of working fluid on the performance of an irreversible Otto cycle, Int. J. Exergy (2005), DOI: 10.1504/ijex.2005.007255.Search in Google Scholar

[43] Y. Ge, L. Chen, F. Sun and C. Wu, Performance of an Atkinson cycle with heat transfer, friction and variable specific-heats of the working fluid, Appl. Energy (2006), DOI: 10.1016/j.apenergy.2005.12.003.Search in Google Scholar

[44] L. Chen, Y. Ge, F. Sun and C. Wu, Effects of heat transfer, friction and variable specific heats of working fluid on performance of an irreversible dual cycle, Energy Convers. Manag. (2006), DOI: 10.1016/j.enconman.2006.02.016.Search in Google Scholar

[45] Y. Ge, L. Chen, F. Sun and C. Wu, Performance of an endoreversible Diesel cycle with variable specific heats working fluid, Int. J. Ambient Energy (2008), DOI: 10.1080/01430750.2008.9675068.Search in Google Scholar

[46] Z. Wu, L. Chen, Y. Ge and F. Sun, Power, efficiency, ecological function and ecological coefficient of performance of an irreversible Dual-Miller cycle (DMC) with nonlinear variable specific heat ratio of working fluid, Eur. Phys. J. Plus (2017), DOI: 10.1140/epjp/i2017-11465-1.Search in Google Scholar

Received: 2019-03-07
Revised: 2019-05-28
Accepted: 2019-07-10
Published Online: 2019-07-24
Published in Print: 2019-10-25

© 2019 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 22.11.2024 from https://www.degruyter.com/document/doi/10.1515/jnet-2019-0020/html
Scroll to top button