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ねじ管の熱交換面積

2015-06-12View Original

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ねじ管の表面積(熱交換面積)の計算式を教えてください。また、直管と比べた利点は何ですか?
Reply #22015-06-12
ねじの深さを見てみると、面積は実際あまり増えておらず、熱交換の強化にはある程度効果がある
Reply #32015-06-16
ねじ管は初期段階ではある程度効果がありますが、後期になると裸管ほどの効果は得られません
Reply #42015-06-16
同じ長さで同じ管径のねじ付き管の熱交換面積が、光管の何倍になるかといった具体的な数値はありますか。
Reply #52015-06-19
深さを見ると、1000~3000で6%前後の差があります

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