Energetic and Exergetic Investigation of Diesel - Brayton and Organic Rankine Combined Cycle

The amount of energy lost through the exhaust gases from diesel as well as gas

turbine power plant is much enough to enhance the performance of the power system as well

as to operate another secondary power generation system. If this energy is not to be used, it

will results in global warming and enhance the local air pollution problem. Present study

proposes a new cycle to utilizes exhaust gas energy from diesel engines and gas turbine power

plants to optimize the performance of the combined cycle. In the proposed system, the waste

energy from the exhaust gas of the diesel power plant is to used to enhance the thermal

efficiency of the gas turbine cycle (GTC), and the waste energy from the exhaust gases of the

GTC is to utilized to operate an organic Rankine cycle (ORC). To investigate the overall

performance of the proposed system, the pressure ratio and turbine inlet temperature (TIT) of

GTC are used as variables. The result shows that the gain in thermal efficiency and work output

of the proposed system is about 15% to 43% and 13% to 20.4% as compared to diesel plus

simple GTC system when TIT increases from 900K to 1200K. The exhaust gases exergy loss

from the diesel system and simple GTC is much high as compared to the proposed-system.

The total exhaust gases exergy loss from the proposed-system is decreased by 3.5 to 1.35 times

as compared to the total exhaust gases exergy loss from diesel cycle and simple GTC.

[1] A.M. Alklaibi, M.N. Khan, W.A. Khan, Thermodynamic analysis of gas turbine with air bottoming cycle, Energy. 107 (2016). https://doi.org/10.1016/j.energy.2016.04.055.

[2] M. Colera, ?. Soria, J. Ballester, A numerical scheme for the thermodynamic analysis of gas turbines, Appl. Therm. Eng. 147 (2019) 521–536.

https://doi.org/10.1016/j.applthermaleng.2018.10.103.

[3] M. Maheshwari, O. Singh, Comparative evaluation of different combined cycle configurations having simple gas turbine, steam turbine

and ammonia water turbine, Energy. (2019). https://doi.org/10.1016/j.energy.2018.12.008.

[4] V. Dolz, R. Novella, A. Garc?a, J. S?nchez, HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system.

Part 1: Study and analysis of the waste heat energy, Appl. Therm. Eng. (2012). https://doi.org/10.1016/j.applthermaleng.2011.10.025.

[5] R. Saidur, M. Rezaei, W.K. Muzammil, M.H. Hassan, S. Paria, M. Hasanuzzaman, Technologies to recover exhaust heat

from internal combustion engines, Renew. Sustain. Energy Rev. (2012). https://doi.org/10.1016/j.rser.2012.05.018.

[6] M. Fallah, H. Siyahi, R.A. Ghiasi, S.M.S. Mahmoudi, M. Yari, M.A. Rosen, Comparison of different gas turbine cycles and advanced

exergy analysis of the most effective, Energy. (2016). https://doi.org/10.1016/j.energy.2016.10.009.

[7] Sanjay, Investigation of effect of variation of cycle parameters on thermodynamic performance of gas-steam combined cycle, Energy. (2011).

https://doi.org/10.1016/j.energy.2010.10.058.

[8] T. K. Ibrahim, M.M. Rahman, Effect of Compression Ratio on Performance of Combined Cycle Gas Turbine, Int. J. Energy Eng. (2012).

https://doi.org/10.5923/j.ijee.20120201.02.

[9] M.N. Khan, I. Tlili, Performance enhancement of a combined cycle using heat exchanger bypass control: A thermodynamic investigation,

J. Clean. Prod. 192 (2018). https://doi.org/10.1016/j.jclepro.2018.04.272.

[10] T.K. Ibrahim, F. Basrawi, O.I. Awad, A.N. Abdullah, G. Najafi, R. Mamat, F.Y. Hagos, Thermal performance of gas turbine power plant

based on exergy analysis, Appl. Therm. Eng. 115 (2017) 977–985. https://doi.org/10.1016/j.applthermaleng.2017.01.032.

[11] M. Ghazikhani, I. Khazaee, E. Abdekhodaie, Exergy analysis of gas turbine with air bottoming cycle, (2014) 1–9.

[12] M. Ghazikhani, M. Passandideh-Fard, M. Mousavi, Two new high-performance cycles for gas turbine with air bottoming, Energy.

36 (2011) 294–304. https://doi.org/10.1016/j.energy.2010.10.040.

[13] O.K. Singh, Performance enhancement of combined cycle power plant using inlet air cooling by exhaust heat operated ammonia-water

absorption refrigeration system, Appl. Energy. (2016). https://doi.org/10.1016/j.apenergy.2016.08.042.

[14] M.N. Khan, I. Tlili, W.A. Khan, Thermodynamic Optimization of New Combined Gas/Steam Power Cycles with HRSG and Heat Exchanger,

Arab. J. Sci. Eng. 42 (2017). https://doi.org/10.1007/s13369-017-2549-4.

[15] H. Ya?li, Y. Koç, A. Koç, A. G?rgülü, A. Tandiro?lu, Parametric optimization and exergetic analysis comparison of subcritical

and supercritical organic Rankine cycle (ORC) for biogas fuelled combined heat and power (CHP) engine exhaust gas waste

heat, Energy. (2016). https://doi.org/10.1016/j.energy.2016.05.119.

[16] W. Zhang, L. Chen, F. Sun, Power and efficiency optimization for combined Brayton and inverse Brayton cycles, Appl. Therm. Eng. (2009).

https://doi.org/10.1016/j.applthermaleng.2009.02.011.

[17] M.N. Khan, Energy and Exergy Analyses of Regenerative Gas Turbine Air-Bottoming Combined Cycle: Optimum Performance,

Arab. J. Sci. Eng. (2020). https://doi.org/10.1007/s13369-020-04600-9.

[18] R.S.Mishra, M. Kumar, Thermodynamic models for combined cycle power plants used in organic Rankine and Brayton cycles,

Int. J. of research in Engineering and Innovation.

[19] J. Galindo, J.R. Serrano, V. Dolz, P. Kleut, Brayton cycle for internal combustion engine exhaust gas waste heat recovery,

Adv. Mech. Eng. (2015). https://doi.org/10.1177/1687814015590314.

[20] S. Zhu, K. Deng, S. Qu, Energy and exergy analyses of a bottoming rankine cycle for engine exhaust heat recovery, Energy. (2013).

https://doi.org/10.1016/j.energy.2013.06.031.

[21] Y. Cao, Y. Gao, Y. Zheng, Y. Dai, Optimum design and thermodynamic analysis of a gas turbine and ORC combined cycle with

recuperators, Energy Convers. Manag. (2016). https://doi.org/10.1016/j.enconman.2016.02.073.

[22] W. Sun, X. Yue, Y. Wang, Exergy efficiency analysis of ORC (Organic Rankine Cycle) and ORC-based combined cycles driven

by low-temperature waste heat, Energy Convers. Manag. (2017). https://doi.org/10.1016/j.enconman.2016.12.042.

[23] A. Sadreddini, M. Fani, M. Ashjari Aghdam, A. Mohammadi, Exergy analysis and optimization of a CCHP system composed

of compressed air energy storage system and ORC cycle, Energy Convers. Manag. (2018). https://doi.org/10.1016/j.enconman.2017.11.055.

[24] T. k. Ibrahim, M. Kamil, O.I. Awad, M.M. Rahman, G. Najafi, F. Basrawi, A.N. Abd Alla, R. Mamat, The optimum performance

of the combined cycle power plant: A comprehensive review, Renew. Sustain. Energy Rev. (2017). https://doi.org/10.1016/j.rser.2017.05.060.

[25] H. Rostamzadeh, M. Ebadollahi, H. Ghaebi, M. Amidpour, R. Kheiri, Energy and exergy analysis of novel combined

cooling and power (CCP) cycles, Appl. Therm. Eng. (2017). https://doi.org/10.1016/j.applthermaleng.2017.06.011.

[26] A.A.A. Abuelnuor, K.M. Saqr, S.A.A. Mohieldein, K.A. Dafallah, M.M. Abdullah, Y.A.M. Nogoud, Exergy analysis

of Garri “2” 180 MW combined cycle power plant, Renew. Sustain. Energy Rev. (2017). https://doi.org/10.1016/j.rser.2017.05.077.

[27] M.N. Khan, Energy and Exergy Analyses of Regenerative Gas Turbine Air-Bottoming Combined Cycle: Optimum Performance,

Arab. J. Sci. Eng. (2020). https://doi.org/10.1007/s13369-020-04600-9.

[28] K. Rahbar, S. Mahmoud, R.K. Al-Dadah, N. Moazami, S.A. Mirhadizadeh, Review of organic Rankine cycle for small-scale applications

, Energy Convers. Manag. (2017). https://doi.org/10.1016/j.enconman.2016.12.023.