Energy and exergy analyses of a combined cycle Kalina and organic Rankine cycles using waste heat
by Mehdi Mansoury; Samad Jafarmadar; Shahram Khalilarya
International Journal of Exergy (IJEX), Vol. 27, No. 2, 2018

Abstract: In current research, wasted heat from a reactivity controlled compression ignition (RCCI) engine provides driving energy for organic Rankine cycle (ORC) and Kalina cycle. After developing a numerical model for this system, the effects of some decision variables on the energy and exergy efficiencies are studied. The obtained results show that, by adding ORC and Kalina cycles, energy and exergy efficiency values are increased while, brake specific values of oxides of nitrogen (NOx) and carbon monoxide (CO) emissions are decrease in selected three engine operation modes (4, 9 and 23 bar indicated mean effective pressure) without changing in fuels consumption.

Online publication date: Fri, 07-Sep-2018

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