고체입자 이동층을 이용한 수직 전열관 열교환기의 성능해석

DOI QR코드

DOI QR Code

박상일;최경빈
Park, Sang-Il;Choe, Gyeong-Bin

  • 발행 : 1996.09.01

초록

A numerical analysis of the moving bed heat exchanger of solid particles inside the vertical pipe was performed using finite difference method. Also, the theoretical solutions were obtained for comparison when the wall heat flux or the wall temperature was assumed constant. The comparison showed that their results agreed well each other. The moving bed heat exchanger was classified as countercurrent-flow, parallel-flow, and cross-flow types according to the gas flow direction. For each type, the thermal efficiency of heat exchanger was calculated as a function of non-dimensional parameters such as the characteristic length of heat exchanger, Biot number and the ratio of thermal capacities of gas and solid particles.

키워드

열교환기;이동층;수직관;고체입자;성능해석