Engineering, 26.07.2019 18:30 belle5828
Air is heated in a duct as it flows over resistance wires. consider a 20 kw electric heating system. air enters the heating section at 100 kpa and 15°c with a volumetric flow rate of 140 m/min. if heat is lost from air in the duct to the surroundings at a rate of 150 w, determine (a) the exit temperature (72) of air and (b) the energetic efficiency (ou). use the pg model for air and neglect the power consumed by the fan. (c) draw an energy flow diagram for the system.
Answers: 2
Engineering, 04.07.2019 18:10, krystabrewer3
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
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Engineering, 04.07.2019 18:20, DroctorWellsfan
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
Answers: 1
Engineering, 04.07.2019 19:10, shunna33
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
Air is heated in a duct as it flows over resistance wires. consider a 20 kw electric heating system....
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