Intercooler-effectiveness on exergo-economic and exergo-sustainability

The book investigates the variants of intercooler effectiveness on exergo-economic and exergo-sustainability indicators of modified Brayton cycles. The objective is to ascertain how the variant in the intercooler effectiveness affects the exergy-based parameters. However to achieve this a component by component exergy-cost balances was established. The considered cycles include: the non-specific cycle (Case 1) comprising a gas turbine (GT) intercooler (IC) heat exchanger (HE) and reheat system (REH) others include (GT+H +REH +ST Case 2) (GT+HE +IC +REH +ST+FWH Case 3) and (GT+HE+IC+REH +ST+2 FWH Case 4). The calculated cycle efficiencies (Cases 1 to 4) varies from 17.59 to 28.84 % for intercooler effectiveness of 0.75 and 0.95. The exergy destruction within this range was 0.97 % 1.26 % 0.89 % and 1.23 % (Cases 1 2 3 and 4) respectively. Conclusively the intercooler and other modifications have a marginal effect but Cases 4 and 3 was most sustainable with considerable ESI.