煤矿乏风氧化床内置翅片换热器几何特性对换热器取热影响
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摘要
采用Fluent软件,对煤矿乏风氧化床内置换热器翅片几何特性对换热器取热的影响进行了研究,研究结果表明:煤矿乏风氧化床内置翅片换热器的取热率总大于对应光管换热器的取热率,同时随着翅片面积的增大,换热器取热率增大,但增大到一定值后不再增大;同时翅片间距由小逐渐增大时,氧化床内置翅片换热器的取热率先增大后减小,存在取热率的极大值。
Using Fluent software, the effect of geometric characteristics of the fin heat exchanger embedded in coal mine ventilation air methane oxidation bed is studied, the results show that: the heat extraction rate of the fin heat exchanger embedded in the coal mine ventilation air methane oxidation bed is greater than that of light tube heat exchanger, with the increase of the area of the fin, the heat extraction rate of the heat exchanger increases, and only increase to a certain value;the spacing of the fins increases gradually, the heat transfer heat extraction rate first increases and then decreases, and has the maximum value.
Using Fluent software, the effect of geometric characteristics of the fin heat exchanger embedded in coal mine ventilation air methane oxidation bed is studied, the results show that: the heat extraction rate of the fin heat exchanger embedded in the coal mine ventilation air methane oxidation bed is greater than that of light tube heat exchanger, with the increase of the area of the fin, the heat extraction rate of the heat exchanger increases, and only increase to a certain value;the spacing of the fins increases gradually, the heat transfer heat extraction rate first increases and then decreases, and has the maximum value.
引文
[1]杨仲卿,张力,唐强.超低浓度煤层气能源化利用技术研究进展[J].天然气工业,2010,30(2):115-118,150.
[2]CONTARIN F, SAVELIEV A V, FRIDMAN A A, et al. A reciprocal flow filtration combustor with embedded heat exchangers:numerical study[J]. International Journal of Heat and Mass Transfer, 2003,46(6):949-961.
[3]KUSHWAHA A, POIRIER M, HAYES R E, et al. Heat extraction from a flow reversal reactor in lean methane combustion[J].Chemical Engineering Research and Design, 2005, 83(2):205-213.
[4]Zengli Gao, Yongqi Liu, Zhenqiang Gao. In uence of packed honeycomb ceramic on heat extraction rate of packed bed embedded heat exchanger and heat transfer modes in heat transfer process[J].International Communications in Heat and Mass Transfer, 2015,65(9):76-81.
[5]高增丽,刘永启,高振强,等.基于煤矿乏风热氧化的填充床内置换热器取热特性[J].煤炭学报,2015,40(6):1 402-1 407.
[6]高增丽,刘永启,苏庆泉,等.取热区蜂窝陶瓷几何特性对换热器取热率的影响[J].煤炭学报,2012,37(4):683-688.
[7]Zengli Gao,Yongqi Liu, Zhenqiang Gao,Heat extraction characteristic of embedded heat exchanger in honeycomb ceramic,packed bed[J]. International Communications in Heat and Mass Transfer,2012,39(10):1 526-1 534.
[8]高增丽,刘永启,高振强.煤矿乏风瓦斯流入特性对填充床内置换热器取热的影响[J].煤炭学报,2017,42(3):665-670.
[2]CONTARIN F, SAVELIEV A V, FRIDMAN A A, et al. A reciprocal flow filtration combustor with embedded heat exchangers:numerical study[J]. International Journal of Heat and Mass Transfer, 2003,46(6):949-961.
[3]KUSHWAHA A, POIRIER M, HAYES R E, et al. Heat extraction from a flow reversal reactor in lean methane combustion[J].Chemical Engineering Research and Design, 2005, 83(2):205-213.
[4]Zengli Gao, Yongqi Liu, Zhenqiang Gao. In uence of packed honeycomb ceramic on heat extraction rate of packed bed embedded heat exchanger and heat transfer modes in heat transfer process[J].International Communications in Heat and Mass Transfer, 2015,65(9):76-81.
[5]高增丽,刘永启,高振强,等.基于煤矿乏风热氧化的填充床内置换热器取热特性[J].煤炭学报,2015,40(6):1 402-1 407.
[6]高增丽,刘永启,苏庆泉,等.取热区蜂窝陶瓷几何特性对换热器取热率的影响[J].煤炭学报,2012,37(4):683-688.
[7]Zengli Gao,Yongqi Liu, Zhenqiang Gao,Heat extraction characteristic of embedded heat exchanger in honeycomb ceramic,packed bed[J]. International Communications in Heat and Mass Transfer,2012,39(10):1 526-1 534.
[8]高增丽,刘永启,高振强.煤矿乏风瓦斯流入特性对填充床内置换热器取热的影响[J].煤炭学报,2017,42(3):665-670.