2012/11/16 中午 12:17
水流量將1550cc的義美的 海洋純水保特瓶,在2min 15sec裝滿.
每秒的流量為 11.48cc/sec
配合一片 Fresnel lens 外觀尺寸, 102 cm X100cm ,
有效的集光面積為 0.785 M^2
我們個熱水頭外觀尺寸為73X 50X7.2 mm.
The water flow was to fill 義美’s PET Bottle which capacity is 1550 cc within 2mins and 58secs .
So the flow rate was 11.48 cc/sec
Combined with a Fresnel the dimension is 1000*1020*4mm which is made in China .
The effective area 0.785M^2
Our water heat-head dimension is 73X50X7.2 mm.
今天也是多雲的天氣.
在這樣的情況下.
從水溫原本是27.5℃ ,
在這 52 secs ,
的過程隨著陽光的強度,
溫度有很激烈的變化,
在影片的20秒時,
瞬間最高溫度可判讀溫度為40.8 ℃ ,
這代表瞬間溫13.3 ℃ ,
瞬間吸熱為 13.1*11.48*4.1868=639.3 W ,
效率達 639.3/785=81.4% .
自己一個人操作,很難將聚光點,
穩住在熱水頭上.
Today was a cloudy day,
Under the circumstance at very beginning the temperature of the water flow was 27.5 ℃ ,
The films length is 52 seconds .
The temperature was ups and downs with the intensity of the light.
At the moment 20sec of the films the temperature was up to 40.8 ℃,
It meant the raising temperature of the water flow which was 13.3 ℃ ,
So the water flow to get the power was around 13.3*11.48*4.1868=639.3 W.
So the total efficiency was up to 639.3/785=81.4%
Post time: Feb-08-2017