Experimental investigation on diesel engine’s waste heat capacity under mapping characteristics
Source abstract
Abstract
Waste heat recovery for internal combustion engine (ICE) has been considered as an important strategy to improve efficiency and promote fuel economy, thus alleviating the problems of energy shortage and environmental pollution. This paper investigates the characteristics of various kinds of waste heat energy, namely, waste heat in exhaust, cooling water and charge air, over the engine’s whole operating region. Based on the energy balance experiments, the energy distribution of a conventional heavy-duty diesel engine is obtained under mapping characteristics. According to exergy analysis, the energy recovery potential for waste heat is studied as well. The experimental results indicate that exhaust energy increases with engine speed and load, while cooling water energy is more sensitive to load, especially at low and middle speed. Charge air energy, on the other hand, mainly counts on speed rather than load. Exhaust energy possesses the highest recovery potential in terms of both quantity and quality. Through waste heat recovery, a dramatic improvement in engine efficiency is achievable, actually, the maximum value can amount to 60% or even more.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Combustion Engine Technologies · Thermodynamic and Exergetic Analyses of Power and Cooling Systems · Vehicle emissions and performance
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Murata Y, Kawano D, Odaka M, et al. Achievement of medium engine speed and load premixed diesel combustion with variable valve timing. SAE Paper 2006-01-0203
2. Karabektas M. The effects of turbocharger on the performance and exhaust emissions of a diesel engine fuelled with biodiesel. Renew Energ, 2009, 34: 989–99310.1016/j.renene.2008.08.010 ↗
3. Wu B Y, Pu Y Z, Yu X Y, et al. Experimental study on the effects of HP and LP EGR on thermal efficiency and emissions of a two-stage turbocharged diesel engine. Sci China Tech Sci, 2014, 57: 379–38910.1007/s11431-014-5459-7 ↗
4. Teng H, Regner G, Cowland C. Waste heat recovery of heavy-duty diesel engines by organic Rankine cycle Part II: Working fluids for WHR-ORC. SAE paper 2007-01-054310.4271/2007-01-0543 ↗
5. Taymaz I. An experimental study of energy balance in low heat rejection diesel engine. Energy, 2006, 31: 364–37110.1016/j.energy.2005.02.004 ↗
6. Tian H, Shu G, Wei H, et al. Fluids and parameters optimization for the organic Rankine cycles (ORCs) used in exhaust heat recovery of internal combustion engine (ICE). Energy, 2012, 47: 125–13610.1016/j.energy.2012.09.021 ↗
7. Wei M S, Fang J L, Ma C C, et al. Waste heat recovery from heavy-duty diesel engine exhaust gases by medium temperature ORC system. Sci China Tech Sci, 2011, 54: 2746–275310.1007/s11431-011-4547-1 ↗
8. Zhang X, Chau K T, Chan C C. Overview of thermoelectric generation for hybrid vehicles. J Asian Electric Vehicles, 2008, 6: 1119–112410.4130/jaev.6.1119 ↗
9. Song B, Zhuge W. An investigation on the performance of a Brayton cycle waste heat recovery system for turbocharged diesel engines. J Mech Sci Tech, 2013, 27: 1721–172910.1007/s12206-013-0422-2 ↗
10. Conklin J C, Szybist J P. A highly efficient six-stroke internal combustion engine cycle with water injection for in-cylinder exhaust heat recovery. Energy, 2010, 35: 1658–166410.1016/j.energy.2009.12.012 ↗
11. Abedin M J, Masjuki H H, Kalam M A, et al. Energy balance of internal combustion engines using alternative fuels. Renewable Sustainable Energ Rev, 2013, 26: 20–3310.1016/j.rser.2013.05.049 ↗
12. Özcan H, Söylemez M S. Thermal balance of a LPG fuelled, four stroke SI engine with water addition. Energ Convers Manage, 2006, 47: 570–58110.1016/j.enconman.2005.05.019 ↗
13. Gharehghani A, Koochak M, Mirsalim M, et al. Experimental investigation of thermal balance of a turbocharged SI engine operating on natural gas. Appl Therm Eng, 2013, 60: 200–20710.1016/j.applthermaleng.2013.06.029 ↗
14. Taymaz I. An experimental study of energy balance in low heat rejection diesel engine. Energy, 2006, 31: 364–37110.1016/j.energy.2005.02.004 ↗
15. Fu J, Liu J, Feng R, et al. Energy and exergy analysis on gasoline engine based on mapping characteristics experiment. Appl Energ, 2013, 102: 622–63010.1016/j.apenergy.2012.08.013 ↗
16. Zhang L P, Liu Z C, Tian J, et al. Investigation of the combustion deterioration of an automotive diesel engine under transient operation. Sci China Tech Sci, 2014, 57: 480–48810.1007/s11431-014-5473-9 ↗
17. Yuksel F, Ceviz M A. Thermal balance of a four stroke SI engine operating on hydrogen as a supplementary fuel. Energy, 2003, 28: 1069–108010.1016/S0360-5442(03)00090-2 ↗
18. Heywood J B. Internal Combustion Engine Fundamentals. America: McGraw-Hill Book Company, 1988. 668–701
19. Martyr A, Plint M A. Engine Testing: Theory and Practice. United Kingdom: Butterworth Heinemann, 2007. 201–210
20. Pulkrabek W W. Engineering Fundamentals of the Internal Combustion Engine. New Jersey: Pearson Prentice Hall, 2004
21. Kline S J, McClintock F A. Describing uncertainties in single-sample experiments. Mech Eng, 1953, 75: 3–8
22. Rakopoulos C D, Giakoumis E G. Second-law analyses applied to internal combustion engines operation. Prog Energ Combust, 2006, 32: 2–4710.1016/j.pecs.2005.10.001 ↗
23. Schuster A, Karellas S, Aumann R. Efficiency optimization potential in supercritical organic Rankine cycles. Energy, 2010, 35: 1033–103910.1016/j.energy.2009.06.019 ↗
24. Azoumah Y, Blin J, Daho T. Exergy efficiency applied for the performance optimization of a direct injection compression ignition (CI) engine using biofuels. Renew Energ, 2009, 34: 1494–150010.1016/j.renene.2008.10.026 ↗
25. Kanoglu M, Bolatturk A. Performance and parametric investigation of a binary geothermal power plant by exergy. Renew Energ, 2008, 33: 2366–237410.1016/j.renene.2008.01.017 ↗
26. Reddy V S, Kaushik S C, Tyagi S K. Exergetic analysis of solar concentrator aided natural gas fired combined cycle power plant. Renew Energ, 2012, 39: 114–12510.1016/j.renene.2011.07.031 ↗
27. Heberle F, Brüggemann D. Exergy based fluid selection for a geothermal organic Rankine cycle for combined heat and power generation. Appl Therm Eng, 2010, 30: 1326–133210.1016/j.applthermaleng.2010.02.012 ↗