چکیده مقاله
Waste heat recovery heat exchangers have been used to recovery of thermal energy from hot flue gasses of devices In this paper, to enhance the efficiency of a regenerative heat exchanger, the Aluminum Oxide sponges have been used as core of the matrix This ceramic sponges is made by polyurethane polymer sponge method with porosity and pore density of 0 85 and 10ppi, respectively The sponges play the role of heat transfer elements in the matrix of heat exchanger and recovers and stores the thermal energy in waste gasses then release to the cold inlet air The sponges have been used and thermal efficiency of heat exchanger have been investigated According to results, the ceramic sponges had a positive effect on efficiency of the heat exchanger and with an increase in matrix thickness, increases the overall thermal efficiency, however, at high thicknesses, the negative effects of pressure drop reduces the thermal efficiency The ceramic sponge heat exchanger recovers more than 31% of waste thermal energy Use of the Aluminum Oxide sponges as heat transfer elements in heat recovery heat exchangers is recommended due to high stiffness, strength, compactness particularly in humid and corrosive processes, particularly in humid and corrosive processes
کلیدواژهها
نویسندگان
Behnam Ataeiyan
MSc student in Mechanical Engineering of Biosystems, Agrotechnology Department, University of Tehran, Tehran, Iran
Shahriar Kouravand
Associated Prof in Mechanical Engineering, Agrotechnology Department, University of Tehran, Tehran, Iran
شیوه ارجاع
Ataeiyan, Behnam and Kouravand, Shahriar,1399,Use of Aluminum Oxide sponges made by polyurethane polymer sponge method in manufacturing of a waste heat recovery heat exchanger,17th National Conference and 6th International Conference on Manufacturing Engineering,Tehran
ارائهشده در
مجموعه مقالات هفدهمین همایش ملی و ششمین کنفرانس بین المللی مهندسی ساخت و تولید12 اسفند 1399 · تهران