Study on the Heat Convection between Tomato Fruitage and Air

doi:10.3969/j.issn.1000-7091.2012.06.044

Abstract

Abstract: To obtain the convection between tomato fruitage and air， the differences in temperature of tomato fruitage surface and air on controlled environment temperature， light intensity in different wind speeds were measured． The convection coefficient between tomato fruitage and air was calculated according to heat balance law，and kc，ks parameters of the models were calculated using Porter and Mitchell's models． The influence of hidden heat coming from tomato water loss was analyzed through 24 h time interval weight loss of the tomato fruitage． The result showed the hidden heat of the tomato fruitage was 2． 3 W/m₂. The measurement result of the convection coefficient increased according to the increase of wind speed，which confirms the view point of former researchers about convection coefficient． It gives a definite parameter for convection heat analyses． Not only did this paper provide a measurement method of the convection coefficient， it settled a base for tomato fruitage climate space study also．

Key words: Tomato, Heat convection, Climate space, Convection coefficient

CLC Number:

S265.5+1
S16

CHEN Jing-ling, ZHU Xiu-hong, WANG Qian, YUAN Yuan, MIAO Lei, ZHAO Yong, WU Ming-zuo. Study on the Heat Convection between Tomato Fruitage and Air[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(6): 229-232. doi: 10.3969/j.issn.1000-7091.2012.06.044.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.3969/j.issn.1000-7091.2012.06.044

http://www.hbnxb.net/EN/Y2012/V27/I6/229

References

[1] 祖元刚．能量生态学引论[M]．长春: 吉林科学技术出版社， 1990: 127-132．
[2] 王谦，沈连峰，陈景玲，等．日光温室番茄气候空间分布特征[J]．农业工程学报，2008，24 ( 12) : 183-186．
[3] 陶大立，何兴元．国内植物环境胁迫研究应注意的几个基本问题[J]．生态学杂志， 2009， 28( 1) : 102-107．
[4] 朱光明．生物组织传热及其若干应用研究[D]．武汉:华中科技大学， 2005．
[5] 洪军．生物质热裂解制油机理试验研究及流化床闪速热裂解装置设计[D]．杭州: 浙江大学， 2002．
[6] 胡银平．离体生物组织冻结过程温度场和应力场的数值模拟[D]．重庆: 重庆大学， 2007．
[7] 杨俊红．植物性含湿多孔介质在干燥过程中优化传热传质机理的研究[D]．天津: 天津大学， 2006．
[8] 丁海峰．皮肤生物组织光热响应研究[D]．上海: 上海交通大学， 2008．
[9] 汪小旵，丁为民，罗卫红，等．南方现代化温室能耗预测模型的建立与分析[J]．南京农业大学学报，2006，29( 1) : 116-120．
[10] 高海生，梁建兰，柴菊华．果蔬贮藏保鲜产业现状研究进展与科技支持[J]．食品与发酵工业，2008，34( 9) : 118-123．
[11] 张延蕾．对流换热系数的反求方法[D]．大连: 大连交通大学， 2005．
[12] 孟力力，杨其长，Gerard P A Bot，等．日光温室热环境模拟模型的构建[J]．农业工程学报，2009，25 ( 1) :164-170．
[13] Roy J C，Boulard T，Kittas C， et al． Convective and ventilation transfers in greenhouse，Part I: The greenhouse considered as a perfectly stirred tank[J]． Biosystems Engineering， 2002， 83( 1) : 1-20．
[14] 高旭东，靳松，渠亚东．屋顶绿化对室内人体热舒适的影响研究[J]．重庆建筑大学学报， 2007， 29( 5) : 44-48．
[15] 王厚华．传热学[M]．重庆: 重庆大学出版社， 2006: 94-95．
[16] Porter W P，Gates D M． Thermodynamic equilibriums of animals with environment[J]． Ecological Monographs， 1969， 39( 3) : 245-270．
[17] Mitchell，J W Heat transfer from spheres and other animal forms[J]． Biophysical Journal， 1976， 16( 6) : 561-569．
[18] 王谦，李胜利，孙治强，等．日光温室番茄植株与环境传热研究[J]．农业工程学报， 2007， 23( 10) : 220-223．

Please choose a citation manager

Content to export