西安交通大学能源与动力工程学院,西安,710049
: 2022-04-28。作者简介: 李科(1992—),男,助理教授
文键(通信作者),女,教授,博士生导师。基金项目: 国家重点研发计划资助项目(SKLTSCP202103)
网络首发:2022-10-10,
纸质出版:2022
移动端阅览
李科, 文键, 厉彦忠, 等. 错流板翅式换热器分布参数模型构建和优化研究[J]. 西安交通大学学报, 2022,56(10):81-90.
LI Ke, WEN Jian, LI Yanzhong, et al. Research on Construction of Distributed Parameter Model and Optimization of Cross-Flow Plate Fin Heat Exchanger[J]. 2022, 56(10): 81-90.
李科, 文键, 厉彦忠, 等. 错流板翅式换热器分布参数模型构建和优化研究[J]. 西安交通大学学报, 2022,56(10):81-90. DOI: 10.7652/xjtuxb202210008.
LI Ke, WEN Jian, LI Yanzhong, et al. Research on Construction of Distributed Parameter Model and Optimization of Cross-Flow Plate Fin Heat Exchanger[J]. 2022, 56(10): 81-90. DOI: 10.7652/xjtuxb202210008.
为了研究多股流错流板翅式换热器的流动换热性能
基于MATLAB编程
考虑隔板中轴向和横向导热效应
构建了错流板翅式换热器的三维分布参数模型
程序模拟结果和热动实验台三股流板翅式换热器的实验结果的吻合程度良好。分析了错流板翅式换热器整体结构参数和工况参数对换热量和泵功消耗的影响。结果表明
针对所研究的三股流错流换热器
单位泵功换热量存在极值
它先随着A流体(大流量冷流体)流量的增加而增加
当A流体流量增加至1 300 kg/h时
又随着A流体流量的增加而减少。对换热器设置4种不同xy面(底面)投影面积分别进行分析
结果表明
维持xy面投影面积不变而变化换热器一边长度
换热量基本不发生变化
但是当换热器y边长度(A流体流动方向长度)为0.15~0.20 m时
泵功消耗最低
单位泵功换热量最大。该研究可为错流板翅式换热器的优化工况选择和高效紧凑设计提供理论指导。
In this paper
a 3-D distributed parameter model of cross-flow plate fin heat exchanger(PFHE)is constructed using MATLAB program by considering the longitudinal and transverse heat conduction to study the flow and heat transfer of the multi-stream cross-flow PFHE. The simulation results coincide with the thermodynamic experimental results of the three-stream plate fin heat exchanger. An analysis is conducted on the effects of configuration and operation parameters of the cross-flow plate fin exchanger on heat transfer amount and the pump power. According to the results
the three-stream cross flow PFHE studied has an extreme value of pump power that shows the following changes: it first increases with the mass flowrate of fluid A
and when the mass flowrate reaches 1 300 kg/h
it decreases with the mass flowrate. Another analysis is carried out by setting four different xy projected areas of PFHE. The results are as follows: The amount of heat transfer basically remains the same when the xy projected area remains unchanged and the length of one side of the PFHE is changed; However
the amount of heat transfer per unit pump power is the greatest and the pump power consumption the lowest when the length of the PFHE along y direction is 0.15—0.20 m. The research findings provide theoretical guidance for the selection of optimized operation parameters
efficient and compact design of the cross-flow PFHE.
康蕊, 厉彦忠, 杨宇杰, 等. 轴向导热对板翅式换热器传热性能的影响 [J]. 西安交通大学学报, 2017, 51(2): 140-148.
KANG Rui, LI Yanzhong, YANG Yujie, et al. Performance evaluation of plate-fin heat exchanger considering effect of axial heat conduction [J]. Journal of Xi'an Jiaotong University, 2017, 51(2): 140-148.
SHAH R K, SEKULIC D P. Fundamentals of heat exchanger design [M]. Hoboken, NJ, USA: John Wiley Sons, 2003: 103-105.
文键, 李科, 刘育策, 等. 利用流固耦合分析的板翅式换热器锯齿型翅片多目标优化 [J]. 西安交通大学学报, 2018, 52(2): 130-135.
WEN Jian, LI Ke, LIU Yuce, et al. Multi-objective optimization of serrated fin in plate-fin heat exchanger by fluid structure interaction [J]. Journal of Xi'an Jiaotong University, 2018, 52(2): 130-135.
ZHU Yinhai, LI Yangzhong. Three-dimensional numerical simulation on the laminar flow and heat transfer in four basic fins of plate-fin heat exchangers [J]. Journal of Heat Transfer, 2008, 130(11): 111801.
YANG Yujie, LI Yanzhong, SI Biao, et al. Performance evaluation of heat transfer enhancement in plate-fin heat exchangers with offset strip fins [J]. Physics Procedia, 2015, 67: 543-550.
徐攀, 文键, 厉彦忠, 等. 氢正仲转化耦合流动换热板翅式换热器研究 [J]. 西安交通大学学报, 2021, 55(12): 16-24.
XU Pan, WEN Jian, LI Yanzhong, et al. Study on hydrogen ortho-para conversion coupled with flow and heat transfer of the plate fin heat exchanger [J]. Journal of Xi'an Jiaotong University, 2021, 55(12): 16-24.
郝鸿伟, 文键, 赵欣, 等. 超流氦系统负压低温板翅式换热器新型波纹-锯齿翅片的性能研究 [J]. 西安交通大学学报, 2021, 55(11): 1-7.
HAO Hongwei, WEN Jian, ZHAO Xin, et al. Study on the performance of a new-type sine-offset fin for negative pressure low temperature plate-fin heat exchanger in superfluid helium system [J]. Journal of Xi'an Jiaotong University, 2021, 55(11): 1-7.
PACIO J C, DORAO C A. A review on heat exchanger thermal hydraulic models for cryogenic applications [J]. Cryogenics, 2011, 51(7): 366-379.
LI Ke, WEN Jian, LIU Yuce, et al. Application of entransy theory on structure optimization of serrated fin in plate-fin heat exchanger [J]. Applied Thermal Engineering, 2020, 173: 114809.
MCDONALD A G, MAGANDE H L. Fundamentals of heat exchanger design [M]//Introduction to Thermo-Fluids Systems Design. Hoboken, NJ, USA: John Wiley Sons Inc., 2012: 127-211.
MULLER A. New charts for true mean temperature difference in heat exchangers [C]//9th UK National Heat Transfer Conference. Manchester, UK: AlChE, 1967: 203-213.
ROETZEL W, SPANG B. Verbessertes diagramm zur berechnung von wärmeübertragern [J]. Wärme-und Stoffübertragung, 1990, 25(5): 259-264.
王松汉. 板翅式换热器 [M]. 北京: 化学工业出版社, 1984: 103-106.
CHATO J C, LAVERMAN R J, SHAH J M. Analyses of parallel flow, multi-stream heat exchangers [J]. International Journal of Heat and Mass Transfer, 1971, 14(10): 1691-1703.
PRASAD B S V. Fin efficiency and mechanisms of heat exchange through fins in multi-stream plate-fin heat exchangers: development and application of a rating algorithm [J]. International Journal of Heat and Mass Transfer, 1997, 40(18): 4279-4288.
李日新. 低温混合工质在板翅式换热器内的传热特性研究 [D]. 广州: 华南理工大学, 2018: 35-42.
李俊. 机载多股流板翅式换热器性能研究 [D]. 南京: 南京航空航天大学, 2015: 25-32.
李俊, 蒋彦龙, 王瑜, 等.机载三股流板翅式冷凝器数值计算与实验研究 [J].南京航空航天大学学报, 2017, 49(3):382-388.
LI Jun, JIANG Yanlong, WANG Yu, et al. Numerical calculation and experimental investigation on airborne three-stream plate-fin condenser [J]. Journal of Nanjing University of Aeronautics Astronautics, 2017, 49(3):382-388.
KRISHNA V, SPOORTHI S, HEGDE P G, et al. Effect of longitudinal wall conduction on the performance of a three-fluid cryogenic heat exchanger with three thermal communications [J]. International Journal of Heat and Mass Transfer, 2013, 62: 567-577.
NIROOMAND R, SAIDI M H, HANNANI S K. A quasi-three-dimensional thermal model for multi-stream plate fin heat exchangers [J]. Applied Thermal Engineering, 2019, 157: 113730.
NIROOMAND R, SAIDI M H, HANNANI S K. A general multi-scale modeling framework for two-phase simulation of multi-stream plate-fin heat exchangers [J]. International Journal of Heat and Mass Transfer, 2020, 156: 119730.
陶文铨. 数值传热学 [M]. 2版. 西安: 西安交通大学出版社, 2001: 263-275.
MANGLIK R M, BERGLES A E. Heat transfer and pressure drop correlations for the rectangular offset strip fin compact heat exchanger [J]. Experimental Thermal and Fluid Science, 1995, 10(2): 171-180.
倪玲英. 工程流体力学 [M]. 东营: 中国石油大学出版社, 2012: 198-204.
李俊, 蒋彦龙, 周年勇, 等. 交叉式多股流板翅式换热器数值研究 [J]. 航空动力学报, 2016, 31(5): 1087-1096.
LI Jun, JIANG Yanlong, ZHOU Nianyong, et al. Numerical study on cross-type multi-stream plate-fin heat exchanger [J]. Journal of Aerospace Power, 2016, 31(5): 1087-1096.
0
浏览量
20
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621