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北方地区温室的冬季供暖十分重要。一方面,室外非常寒冷(哈尔滨地区最寒冷的1月份室外日平均气温达到-26℃);另一方面,由于地理纬度高(哈尔滨地区地理纬度j=45.6),太阳高度角低(1月份平均为d=-20.9),造成采光量少,必须补充足量的热才能维持温室正常的栽培生产。为此,详细论述了寒冷地区温室供暖计算方法,为北方温室的冬季生产提供热量的保证。
Winter heating in northern greenhouses is very important. On the one hand, the outdoor is very cold (the coldest outdoor temperature in Harbin reached -26 ℃ in January); on the other hand, due to the high geographical latitude (geography latitude j = 45.6 in Harbin), the solar elevation angle is low D = -20.9), resulting in a small amount of light, you must add enough heat to maintain normal greenhouse cultivation. To this end, a detailed discussion of the calculation method of greenhouse heating in cold regions, to provide heat guarantee for the winter production in the northern greenhouse.