Engineering, 25.10.2019 00:43 edjiejwi
Air enters a nozzle steadily at 200 kpa and 350k with a velocity of 30 m/s and exits at 90 kpa and 220 m/s. the heat loss from the nozzle to the surrounding medium at 17°c is estimated to be 2.5 kj/kg. determine (a) the exit temperature and (b) the exergy destroyed during this process.
Answers: 1
Engineering, 03.07.2019 15:10
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.
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Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
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Engineering, 04.07.2019 19:20
Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.
Answers: 1
Engineering, 04.07.2019 19:20
Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference
Answers: 3
Air enters a nozzle steadily at 200 kpa and 350k with a velocity of 30 m/s and exits at 90 kpa and 2...
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