|Table of Contents|

Effects of Indoor Air Parameters on Frosting Characteristics of Channels Wheel Heat Exchanger

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年04期
Page:
512-516
Research Field:
Publishing date:

Info

Title:
Effects of Indoor Air Parameters on Frosting Characteristics of Channels Wheel Heat Exchanger
Author(s):
QU Shi-lin1GAO Bo23LUO Er-cang2WANG Miao4
1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing100083,China;2.The Key Laboratory for Cryogenic Technology,Technical Institue of Physicsand Chemistry,Chinese Academy of Sciences,Beijing 100190,China;3.Graduate School,Chinese Academy of Sciences,Beijing 100049,China;4.China Construction First Division Group,Construction & Development Co.,Ltd,Beijing 100102,China
Keywords:
channels wheel heat exchangers frosting heat transfer
PACS:
TU832.23
DOI:
-
Abstract:
In cold region,the frost on the surface of air exhaust parts of a channels wheel fresh air ventilator reduces its heat transfer efficiency.In order to eliminate the effect,mathematical models of a channel wheel fresh air ventilator under frosting conditions are established which are based on the conservation of energy and moisture content.The models are used to analyze the frosting characteristics and the heat transferring characteristics of a channel wheel heat exchanger under different indoor air temperature and humidity conditions.The simulation results are compared with the actual measurements to verify the accuracy and reliability of the models.The model proposed here can provide a basis for defrosting control.

References:

[1]高波. 新风换气机在严寒地区动机运行的现状与 进展[ J]. 中国建设信息, 2004( 1): 40- 42.
[2] YaoYang. A study on the perfo rmance of the airside hea t exchanger under frosting in an air source heat pump water heater/ chiller un it [ J]. International Journal o fH eat and Mass Transfer, 2004, 47( 1): 3 745- 3 756.
[3] LeeY B, Ro S T. An expermi ental study o f frost form a?? tion on a hor izontal cy linder under cross flow [ J]. Inter?? national Journa l o fRefr igera tion, 2001, 24: 468- 474.
[4] Yun Rin, K im Yong chan, M in M an??k.i M ode ling o f frost grow th and frost properties w ith a irflow ove r a flat plate [ J ]. Inte rnational Journa l of Refr igeration, 2002, 25( 3) : 362- 371.
[5] 高波, 董重成, 程志刚. 通道轮式换热器室外排风侧 的结霜规律[ J]. 低温建筑技术, 2007( 10): 19- 21. 516

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Last Update: 2012-12-19