Engineering, 12.07.2019 23:30 montanolumpuy
An air-to air heat pump has a capacity of 10 tons at its balance point. the characteristics of the heat pump and that of the building is as shown in figure 2.6.3. at a typical winter operation, the outside air temperature is at 15 °f. determine (a) the building load (b) the capacity of heat pump (c) the power supplied by the supplementary resistance heaters (d) the cop of the heat pump (e) and the equivalent cop of the heat pump, after accounting for the supplementary energy supplied
Answers: 2
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Engineering, 04.07.2019 18:10
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
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Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
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Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
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An air-to air heat pump has a capacity of 10 tons at its balance point. the characteristics of the h...
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