Study on the Lighting Performance of Openroof Venlo Greenhouse

doi:10.3969/j.issn.1000-6362.2015.03.004

Abstract

Abstract: Under different weather (sunny and cloudy) and different window-opening proportions conditions, the photosynthetically active radiation intensity （PAR）was tested inside and outside of two greenhouses (A is a Venlo greenhouse with a open-roof, B is a Venlo greenhouse with a roof vent window) in order to study the lighting performance. The result showed that under sunny and cloudy conditions, average lighting transparent rate of the open-roof greenhouse were 53.7% and 52.1%, while those significantly higher than the greenhouse B under the same conditions. Whether sunny or cloudy conditions, the lighting transparent rate of the open-roof Venlo greenhouse increased as proportions of window (roof) increased. And there was no significant change in the greenhouse B. It showed that the open-roof Venlo greenhouse had higher lighting transparent rate, while opened window (roof) reduced solar radiation blocking. Under sunny and cloudy conditions, the mean value of PAR distribution uniformity coefficient (PDUC) of the open-roof Venlo greenhouse were 0.893 and 0.916, which were lower than the value of the greenhouse B under the same conditions. As proportions of window (roof) increased, the PDUC of the open-roof Venlo greenhouse reduced, of which variable amplitude on a sunny day was larger than cloudy. At same time, the PDUC of the greenhouse B had no obvious change. This showed that opened window of the open-roof Venlo greenhouse had blocked the direct solar radiation near the gutter, which lead to a lower PDUC of the open-roof Venlo greenhouse.

Key words: Greenhouse, Transparent rate, Distribution uniformity coefficient, Openroof

QI Zhenyu，DING Wenya，WU Yunrong，ZHOU Qiang. Study on the Lighting Performance of Openroof Venlo Greenhouse[J]. Chinese Journal of Agrometeorology, 2015, 36(03): 272-277.

References

[1]蔡德存，吕毅，赵玉清.聚脂镀铝膜反光幕改善日光温室光照度的试验初报[J].中国农业气象，1994，15(1)：41-45.
Cai D C，Lv Y，Zhao Y Q.Polyester aluminizer reflective screen test of improving illumination of sunlight greenhouse preliminary report[J].Chinese Journal of Agrometeorology，1994，15(1)：41-45.(in Chinese)
[2]贺芳芳.上海地区荷兰玻璃温室内温、湿控制分析[J].中国农业气象，2000，21(2)：35-39.
He F F. Analysis of the inside temperature and humidity control of holl and glass greenhouse in Shanghai[J].Chinese Journal of Agrometeorology，2000，21(2)：35-39.(in Chinese)
[3]沈能展，任红玉，陈克农，等.黑龙江省节能日光温室冬季光温特点的研究[J].中国农业气象，2002，23(1)：29-34.
Shen N Z，Ren H Y，Chen K N，et al.Study on winter light-temperature characters of sunlight energy-saving greenhouse in Heilongjiang Province[J].Chinese Journal of Agrometeorology，2002，23(1)：29-34.(in Chinese)
[4]刘克长，任中兴.山东日光温室温光性能的实验研究[J].中国农业气象，1999，20(4)：34-37.
Liu K C，Ren Z X.Experimental study on Shandong greenhouse temperature light performance[J]. Chinese Journal of Agrometeorology，1999，20(4)：34-37.(in Chinese)
[5]王倩，张海涛，刘旭，等.下沉式日光温室内温光环境分析[J].中国农业气象，2013，34(1)：37-42.
Wang Q，Zhang H T，Liu X，et al.Analysis on temperature and light in sinking solar greenhouse[J]. Chinese Journal of Agrometeorology，2013，34(1)：37-42.(in Chinese)
[6]周长吉，王莉，张书谦，等.温室工程设计手册[M].北京：中国农业出版社，2007.
Zhou C J，Wang L，Zhang S Q，et al. Handbook of greenhouse engineering designing[M].beijing：China Agriculture Press，2007.(in Chinese)
[7]周长吉，丁小明，杜孝明.温室用聚碳酸酯中空板辐射透过特性初步研究[J].农业工程学报，2006，22(11)：192-196.
Zhou C J，Ding X M，Du X M. Light transmissivity of polycarbonate multi-wall sheet used as greenhouse glazing material[J].Transactions of the Chinese Society of Agricultural Engineering，2006，22(11)：192-196.(in Chinese)
[8]杨其长.荷兰温室结构型式及其发展[J].农业工程技术，2006，（11）：9-11.
Yang Q C.Holland greenhouse structure and its development[J].Agricultural Engineering Technology，2006，（11）：9-11.(in Chinese)
[9]杨仁全，王纲，周增产，等.屋顶全开启型文洛式连栋温室的研制[J].华中农业大学学报，2004，23（35）：102-106.
Yang R Q，Wang G，Zhou Z C，et al.Design and application of open-roof greenhouse[J].Journal of Huazhong Agricultural University，2004，（35）：102-106.(in Chinese)
[10]陆春胜.一种屋脊大开窗玻璃温室开窗机构的设计[J].上海农业学报，2007，23(4)：76-79.
Lu C S. The design of windowing device of a glasshouse with big ridge windows[J]. Acta Agriculturae Shanghai，2007，23(4)：76-79.(in Chinese)
[11]姜雄晖，刘淑珍.温室开窗机构研究[J].中国农机化，2006，(3)：62-66.
Jiang X H，Liu S Z. Study actuality of ventilation-window opener for greenhouses[J].Chinese Agricultural Mechanization，2006，(3)：62-66.(in Chinese)
[12]董吉林，李亚灵，温祥珍.温室光环境模拟模型及结构参数设计系统[J].山西农业大学学报，2003，23(3)：252-255.
Dong J L，Li Y L，Wen X Z. Lighting environment simulation model of greenhouse and design system of structure parameters[J].Journal of Shanxi Agricultural University，2003，23(3)：252-255.(in Chinese)
[13]宋卫堂，张树阁，黄之栋，等.三连栋不对称屋面玻璃温室设计与光照性能分析[J].农业机械学报，2005，36(11)：106-109.
Song W T，Zhang S G，Huang Z D，et al.Structure design and illumination performance of 3-span asymmetrical roofing glass greenhouse[J].Transactions of the Chinese Society for Agricultural Machinery，2005，36(11)：106-109.(in Chinese)
[14]刘杰，李保明，黄仕伟，等.NJ-6型连栋塑料温室冬季光温环境的试验研究[J].中国农业大学学报，2001，6(6)：59-62.
Liu J，Li B M，Huang S W，et al.Study on light and thermal environment of NJ-6 type multi-span greenhouse in winter[J].Journal of China Agricultural University，2001，6(6)：59-62.(in Chinese)
[15]周萍，陈杰，戴丹丽，等.不同天气条件下连栋温室内光照分布规律研究[J].农机化研究，2007，(6)：123-125.
Zhou P，Chen J，Dai D L，et al. Study on the regularity of sunlight in the layout of mutli-greenhouse in different weather[J].Journal of Agricultural Mechanization Research，2007，(6)：123-125.(in Chinese)
[16]裴孝伯，李世诚，蔡润，等.现代温室光环境特征的研究[J].安徽农业大学学报，2005，32(2)：246-249.
Qiu X B，Li S C，Cai R，et al. Characteristics of light environment in modern greenhouse[J].Journal of Anhui Agricultural University，2005，32(2)：246-249.(in Chinese)
[17]张辉.谈谈普通型塑料温室透光率的测定方法[J].现代农业装备，2008，(5)：55-56.
Zhang H. Determination method for the transparent rate of ordinary plastic greenhouse[J].Modern Agricultural Equipments，2008，(5)：55-56.(in Chinese)
[18]Roberts W J.Glazing materials，structural design，and other factors affecting light transmission in greenhouses[OL].Mon Mar 17 10:52:18 2003. http：//aesop.rutgers.edu/~horteng/Workshop.
[19]程勤阳，丁小明，曲梅.连栋温室采光性能评价指标[J].农业工程学报，2009，25(6)：169-172.
Cheng Q Y，Ding X M，Qu M.Evaluation index of lighting performance in multi-span greenhouse[J]. Transactions of the Chinese Society of Agricultural Engineering，2009，25(6)：169-172.(in Chinese)
[20]王鹏，李卫欣，孙永涛，等.连栋塑料温室光温环境特征分析[J].北方园艺，2005，(1)：18-19.
Wang P，Li W X，Sun Y T，et al. Analysis on light and temperature environment characteristics of multi span plastic greenhouse[J].Northern Horticulture，2005，(1)：18-19.(in Chinese)