ZHANG Renping 1, SUN Jian 2, WANG Heping 3, FENG Qing 4
(Key Laboratory of Advanced Ceramics of Jiangxi Province, School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, 333403, Jiangxi, China)
Abstract:Computational procedure of gas-gas heat pipe exchanger for the application of recovery waste heat of ceramic kiln was developed.The effects of fin spacing, tube center distance and the length of heat pipe on the pressure loss of flue gas section and air segment, the payback period and the required total number of the heat pipe were observed. Studies show: with the increase of tube center distance, the pressure loss of the flue gas section and air segment is reduced, the pressure loss in the flue gas section decreased greatly; the pressure loss of the flue gas section and air segment increases with the decrease of the fin spacing; when the fin pitch is increased, the total number of the heat pipes increases, the payback period also rises;
Key words:heat pipe; heat exchanger; ceramic kiln; structural parameters