真太陽時角 的英文怎麼說

中文拼音 [zhēntàiyángshíjiǎo]
真太陽時角 英文
hour angle of true sun
  • : Ⅰ形容詞(真實) true; genuine; real Ⅱ副詞1 (的確; 實在) really; truly; indeed 2 (清楚確實) cl...
  • : Ⅰ形容詞1 (極高; 極大) highest; greatest; remotest 2 (極; 最) extreme; most 3 (身分最高或輩分...
  • : Ⅰ名詞1 (太陽; 日光) the sun 2 (山的南面; 水的北面) south of a hill or north of a river 3 (中...
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
  1. The bigger the diameter, the high the heat efficiency, but the weak the temperature increasing ability, length has less effect on the heat efficiency, tilt angle has less effect on the flow field and temperature field while it is larger than 30 degree, vacuum degree and emissivity have great effect on the flow field and temperature field while there is a great temperature difference between the liquid in the tube and the surroundings, the furring has less effect on the heat transfer but should be cleaned up in 3 - 5 years because of poor water quality, the higher the solar flux or the more the temperature difference between the liquid and the surrounding, the more the heat loss and the lower the heat efficiency

    分析了各種因素對空集熱管流場和溫度場的影響。直徑越大,熱效率越高,但升溫能力弱;長度對熱效率影響不大;傾斜度大於30后,自然對流已經能夠充分進行,考慮以能夠吸收到最大輻射為主;空度和發射率對熱效率和溫度場影響很大,尤其是在介質溫度與環境溫度差異比較大;水垢對傳熱影響較小但由於水質的問題應該被3 5年清洗一次;輻射強度越大,介質溫度與環境溫度差異越大,熱損失越大,效率越低; 4
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