Musa, Nicholas; Federal University of Technology, Minna, Niger State, Nigeria; Okegbile, James; Federal University of Technology, Minna, Niger State, Nigeria; Owojaiye, Adeola; Federal University of Technology, Minna, Niger State, Nigeria
Açıklama:
Thiswork presents the application of waste heat from exhaust gases of gasolinegenerator through a heat exchanger for household water heating. Two cases wereexperimented. First, was when water was supplied and filled the heat exchangerwithout discharging through the tap (retained). Second, was when water wascontinuously supplied to the heat exchanger and continuously discharged throughthe tap. In both cases, the temperatures of water and exhaust gases weremeasured. Measurement showed that during one hour ofoperation, the water temperature increased from 300C to 630Cin the first case and from 280C to 490C in the secondcase. The average mass flow rate of water in the first case, averagemass heating rate of water in the second case and average mass flow rate ofexhaust gas in the first and second cases were determined to be 0.01 kg/s,0.044 kg/s, 0.02 kg/s and 0.09 kg/s respectively. Theheat gain rate of water in first and second cases were determined to be 1.28 kWand 22.58 kW respectively.