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A propane (LP) appliance has an input of 75,000 BTU/hr. Using an approximate heating value of 2,500 BTU per cubic foot for propane, what is its demand in cfh?
a.75 cfh
b.30 cfh
c.300 cfh
d.3 cfh
Giải thích
For propane, divide the input by about 2,500 BTU per cubic foot: 75,000 divided by 2,500 equals 30 cubic feet per hour. Propane carries far more energy per cubic foot than natural gas, so its cfh demand is much smaller for the same BTU load. Always match the sizing table to the correct fuel.
Trích dẫn luật: California Plumbing Code, Fuel Gas provisionsLuyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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