Engineering, 14.08.2021 07:10 gray69
Cho ống lồng ống làm bằng kim loại, ống trong có d1/d2 = 34/40, dài 2,5 m. Nhiệt độ dòng
nóng 110oC, nhiệt độ trung bình dòng lạnh 80oC, mật độ dòng nhiệt qua tường là 14780 W/m.
a. Tính hệ số truyền nhiệt dài.
b. Tính tổng nhiệt lượng truyền qua trên tòan bộ ống.
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Aseries piping system conveys methyl alcohol. the system consists of 70 m of 1- nominal pipe follow by 50 m of 2-nominal pipe, both schedule 40 commercial steel. the 1-nominal pipe contains 3 90° elbows (regular) anda fully open gate valve, all threaded. the pressure drop through the system is 150 kpa. determine the volume flow rate through the system that is horizontally laid.
Answers: 1
Cho ống lồng ống làm bằng kim loại, ống trong có d1/d2 = 34/40, dài 2,5 m. Nhiệt độ dòng
nóng 110oC...
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