Energy and exergy analysis of stenter exhaust air heat recovery system for heat-setting processes [Termofi˙ksaj i˙şlemleri˙ i˙çi˙n ramöz atik havasindan isi geri˙ kazanim si˙stemi˙ni˙n enerji˙ ve ekserji˙ anali˙zi˙]

Energy recovery applications are of great importance for sustainable production with regard to efficient use of natural sources. textile finishing processes generates large amount of waste energy. recovery of this waste energy provides both economic and environmental benefits. in the scope of this study,heat recovery from the exhaust air of textile stenters was analysed. process water is heated by the exhaust air of thermosetting process in an industrial scale heat recovery system retrofitted to a stenter. thermodynamic model of the system was presented by energy and exergy analyses. mass flow rate of water was observed to be the most significant parameter that affects the temperature of water outlet. 70-75 °c water outlet temperatures can be obtained at lower waste water mass flow rates. decrease in the mass flow rate of water led to decrease in exergy destruction and increase in exergy efficiency. exergy efficiency of the system was calculated between 10% and 30% depending on the mass flow rate of water.