日光温室主动蓄热机理及试验研究-杨其长
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Development of Chinese solar greenhouse
1400
The areas of Chinese solar greenhouse(103 ha)
1200
1000 800
600
400 200
0 1980
1990
2000
2010
2020
Year
1.major advantages of CSG: saving-energy and low investment
The CSG is a typical Chinese greenhouse(savingenergy and low investment), was used for vegetable production in winter at 32oN-48oN.Now there are 1,250,000 ha in China. （Qifei,2010)
Waste of land resources
3m
3m
0.8m
8m
12m
3、墙体蓄热量分析- 对1m墙体不同厚度的温度变化进行分析
低于5℃
-10 -20
time
日光温室1月连续5天气温变化(Beijing,2010.01)
(2)为提高保温蓄热性能，出现盲目增加墙体厚度（3-7m，甚至达 到 8m)的现象，造成土地资源的浪费。
Thickening the north wall (to 8m) blindly in order to improve the heat-retaining performance of CSG
Main problems : insufficient heat storage and low land efficient application （1）日光温室自身蓄热量不足,冬季夜晚往往出现温度过低（ ﹤5℃ ）现象， 影响作物生长。 Insufficient heat storage causes freeze injury to crops(﹤5℃) in winter.
Prof.& Dr. Qichang Yang
IEDA , Chinese Academy of Agricultural Sciences(CAAS) ,China
报告提纲（Content）
日光温室主动蓄热思路的提出
Why is there such an idea of active heat storage in Chinese Solar Greenhouse (CSG)
夜晚，室内气温下降时，墙体、土
Qc Qw1 Qs1
壤蓄积的热量逐渐释放到室内，用
于夜晚增温。
night: heat release from north wall and the earth, when the temperature is low in CSG.
2、存在的主要问题-蓄热量不足、土地利用率低
Thanks to Prof. Toyoki Kozai and Prof. Gerard P. A. Bot for helping us organizing the 2011-HIFPH!
Thanks to Carl-Otto Ottosen,Eddie Schrevens, Gerrit van Straten, R. Matsuda, T. Hoshi, Tong Yuxin,Stephania de Pascale, Tom Papadopoulos, Chungui Lu, Mingyi Zhang, Wei Fang, for taking part in the Forum and giving us so many interesting presentation!
Thanks to Organizing Committee of The twelfth China (Shouguang) International Vegetable Fair for making the Forum a huge success!
Thanthe Forum!
2 0 11 H i g h - l e v e l I n t e r n a t i o n a l F o r u m o n P r o t e c t e d H o r t i c u l t u r e
日光温室主动蓄热机理及试验研究
Mechanism and Preliminary Experimental results of Active Heat Storage in Chinese Solar Greenhouse
1、日光温室主要优势-节能、低成本
白天，北墙内表面、土壤持续吸收
Qsun
太阳辐射，将热量蓄积在墙体、土 壤中。 daytime: north wall and the
Qw
Qs
earth absorb solar radiation, much heat is reserved in north wall and earth.
40
30 室内空气 室外空气
﹤5℃ ﹤10℃
temperature/℃
20
10
0
9:20 13:10 17:00 20:50 0:40 4:30 8:20 12:10 16:00 19:50 23:40 3:30 7:20 11:10 15:00 18:50 22:40 2:30 6:20 10:10 14:00 17:50 21:40 1:30 5:20 9:10 13:00 16:50 20:40
主动蓄热技术试验研究
Some experiments on the active heat storage
主要结论与讨论
Main conclusions and discussion
一、主动蓄热思路的提出
1. New idea of active heat storage in CSG
日光温室作为中国特有的一种温室结构型式，具有成本低、节能等独特优势， 已成为北纬32o-48o区域冬季蔬菜生产的主要设施，面积达到了125万公顷 （Qifei,2010)。
1400
The areas of Chinese solar greenhouse(103 ha)
1200
1000 800
600
400 200
0 1980
1990
2000
2010
2020
Year
1.major advantages of CSG: saving-energy and low investment
The CSG is a typical Chinese greenhouse(savingenergy and low investment), was used for vegetable production in winter at 32oN-48oN.Now there are 1,250,000 ha in China. （Qifei,2010)
Waste of land resources
3m
3m
0.8m
8m
12m
3、墙体蓄热量分析- 对1m墙体不同厚度的温度变化进行分析
低于5℃
-10 -20
time
日光温室1月连续5天气温变化(Beijing,2010.01)
(2)为提高保温蓄热性能，出现盲目增加墙体厚度（3-7m，甚至达 到 8m)的现象，造成土地资源的浪费。
Thickening the north wall (to 8m) blindly in order to improve the heat-retaining performance of CSG
Main problems : insufficient heat storage and low land efficient application （1）日光温室自身蓄热量不足,冬季夜晚往往出现温度过低（ ﹤5℃ ）现象， 影响作物生长。 Insufficient heat storage causes freeze injury to crops(﹤5℃) in winter.
Prof.& Dr. Qichang Yang
IEDA , Chinese Academy of Agricultural Sciences(CAAS) ,China
报告提纲（Content）
日光温室主动蓄热思路的提出
Why is there such an idea of active heat storage in Chinese Solar Greenhouse (CSG)
夜晚，室内气温下降时，墙体、土
Qc Qw1 Qs1
壤蓄积的热量逐渐释放到室内，用
于夜晚增温。
night: heat release from north wall and the earth, when the temperature is low in CSG.
2、存在的主要问题-蓄热量不足、土地利用率低
Thanks to Prof. Toyoki Kozai and Prof. Gerard P. A. Bot for helping us organizing the 2011-HIFPH!
Thanks to Carl-Otto Ottosen,Eddie Schrevens, Gerrit van Straten, R. Matsuda, T. Hoshi, Tong Yuxin,Stephania de Pascale, Tom Papadopoulos, Chungui Lu, Mingyi Zhang, Wei Fang, for taking part in the Forum and giving us so many interesting presentation!
Thanks to Organizing Committee of The twelfth China (Shouguang) International Vegetable Fair for making the Forum a huge success!
Thanthe Forum!
2 0 11 H i g h - l e v e l I n t e r n a t i o n a l F o r u m o n P r o t e c t e d H o r t i c u l t u r e
日光温室主动蓄热机理及试验研究
Mechanism and Preliminary Experimental results of Active Heat Storage in Chinese Solar Greenhouse
1、日光温室主要优势-节能、低成本
白天，北墙内表面、土壤持续吸收
Qsun
太阳辐射，将热量蓄积在墙体、土 壤中。 daytime: north wall and the
Qw
Qs
earth absorb solar radiation, much heat is reserved in north wall and earth.
40
30 室内空气 室外空气
﹤5℃ ﹤10℃
temperature/℃
20
10
0
9:20 13:10 17:00 20:50 0:40 4:30 8:20 12:10 16:00 19:50 23:40 3:30 7:20 11:10 15:00 18:50 22:40 2:30 6:20 10:10 14:00 17:50 21:40 1:30 5:20 9:10 13:00 16:50 20:40
主动蓄热技术试验研究
Some experiments on the active heat storage
主要结论与讨论
Main conclusions and discussion
一、主动蓄热思路的提出
1. New idea of active heat storage in CSG
日光温室作为中国特有的一种温室结构型式，具有成本低、节能等独特优势， 已成为北纬32o-48o区域冬季蔬菜生产的主要设施，面积达到了125万公顷 （Qifei,2010)。