Exergo-economic comparison of waste heat recovery cycles for a cement industry case study

This work evaluates the performance regarding exergo-economic and emissions requirements of Waste Heat Recovery configurations (Organic Rankine cycle, Trilateral flash Kalina cycle) under different operating conditions working fluids. It was found that best economic is presented by Organic cycle operates with Cyclo-Pentane has two intermediate heat exchangers since it pushes expansion temperature up while allowing a higher input to cycle. As result, delivers 6.2 MW net present value, value 0.74 million dollars, saving 11480 tonnes carbon dioxide per year. far exceeds obtained in previous work, around 50% net-work 80% constitutes alternative terms recover waste from source evaluated. Regarding can be stated exergetic are independent fluid as long there not very large volume change expander. The presents slight exergy destruction, but power delivered does compensate for high total capital cost due pressures must handled, 55–120 bar, compared 4–40 bar. An approach made more realistic cases where methodology used facilitates selecting when budget restriction using alternatively like fixed requirement primary decision criterion.