|本期目录/Table of Contents|

[1]李步飞,王冠宇,刘庆功,等.土壤-空气换热系统热性能的模拟与分析[J].江苏农业科学,2019,47(07):265-267,277.
 Li Bufei,et al.Simulation and analysis of thermal performance of soil-air heat exchange system[J].Jiangsu Agricultural Sciences,2019,47(07):265-267,277.
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土壤-空气换热系统热性能的模拟与分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第07期
页码:
265-267,277
栏目:
资源与环境
出版日期:
2019-05-10

文章信息/Info

Title:
Simulation and analysis of thermal performance of soil-air heat exchange system
作者:
李步飞12 王冠宇3 刘庆功12 王国英12 赵子凡4
1.太原理工大学环境科学与工程学院,山西晋中 030600;2.山西省研究生教育创新中心,山西晋中 030600;
3.太原理工大学软件工程学院,山西晋中 030600;4.东南大学经济管理学院,江苏南京 211189
Author(s):
Li Bufeiet al
关键词:
土壤-空气换热器数值模拟耦合传热节能
Keywords:
-
分类号:
TK523;TU831
DOI:
-
文献标志码:
A
摘要:
针对土壤-空气换热器在日光温室中加热条件下土壤中热量传递的问题,研究利用SIMPLER算法,对土壤-空气换热系统的热性能进行数值模拟,并研究空气流速度对该系统热性能的影响,以获得最佳的进口空气速度。首先以土壤导热方程为基础,再结合k-ε湍流模型,将固体区与流体区作为1个整体全场求解,最后对空气与土壤的交界处用壁面函数法进行特别处理。在此基础上,通过建立土壤-空气换热器瞬态二维模型,模拟研究不同入口空气速度对土壤-空气换热器热性能的影响。模拟结果表明,当入口温度相同时,随着空气流动速度的加快,进出口空气温差逐渐减小。在此过程当中,系统换热量和COP的增加均越来越慢。通过模拟结果可知,空气的最佳入口流速为6.5 m/s。研究结果对农业温室的运行和节能有参考价值。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-11-17
基金项目:山西省自然科学基金青年基金项目 (编号:2015021119)。
作者简介:李步飞(1990—),男,山西晋中人,硕士,研究方向为土壤修复、环境污染控制、供水管网优化调度与管理。E-mail:1039776008@qq.com。
通信作者:王国英,博士,副教授,研究方向为土壤修复、环境污染控制、废水生物处理。E-mail:1156135367@qq.com。
更新日期/Last Update: 2019-04-05