The influence of the collector Angle, please

Group 1 is composed of 12 Zhang Xiaoge, t table of each small pay for a month, in the abscissa denotes the collector Angle, the temperature of water tank, peak as the ordinate. Analysis of the picture it is not hard to see the following:

(1) the best Angle of the collector, in different have different values, the best Angle of the cold season big, small, Novosibirsk and six to one. KAn said by numerical example of Beijing, tianjin, area is concerned, the best Angle of about 40 in March. And the reduced to slightly more than 10, June and July. , December to 60 \"above.

(2) the size of the total heat capacity system generally does not affect the call Angle value.

(3) the system total heat capacity is different, the Angle deviated from its optimal value sensitivity is quite different. In the case of a daily highest temperature, the smaller the total heat capacity, the inclination of the more sensitive. In mid-may, for example, the Angle is about 15. , if the collector fixed on 40 \"Angle, so for the total heat capacity c = 30 kcal/(m2) ℃) of water heater system, water temperature, peak by 73 y fell to 68.7 ℃, which fell by 4.3 ℃; but for the total heat capacity c = 120 KCNL/(m2) ℃) hot water system, by 40. 37.5., which fell by 2.5 ℃.

(4) if the system of the total heat capacity has been given, to the sensitive degree of inclination in different months. The collector Angle of the general water heater system in 30 more. A 50 ', between the dip Angle range change. For Beijing, tianjin, region, or in March the least sensitive in September, in December, January and June and July is the most sensitive. In march, for example, for c = 120 kcal/(. ℃) device, the Angle is 30. The tank when U high of average temperature of 27.1 ℃, 40 \"is 27.6 ℃, 50\" is 27.4 ℃. In January, on the other hand, dip Angle of 30 \". 3 ℃, 40. 16.8 ℃, when 50. When is 17.8 ℃.