Engineering, 05.10.2019 10:01, RockieLuv7292
The vacuum pump is used to create vacuum in the insulated tank of volume equal to 25 m3. initially the tank is filled with air at temperature 300 k and pressure 1 bar. to support the pump 0.05 kw heater was mounted in the tank. find the minimal power of the pump required to empty the tank within 4 hours. assume that the gas which is leaving the tank is at 350 k. the gas constant for the air is 287 j/kg/k and the air is di-atomic gas. what will be the power if no heating elements are used and the air leaving the tank is at ambient temperature equal to 300 k (due to very slow flow)? which solution is better from energetic point of view?
Answers: 2
Engineering, 03.07.2019 15:10, theamandawhite
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 18:20, moneywaydaedae
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
Engineering, 04.07.2019 18:20, annette211pdd8v9
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
The vacuum pump is used to create vacuum in the insulated tank of volume equal to 25 m3. initially t...
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