Engineering, 14.09.2019 02:20 Lesquirrel
Apressure cooker (steel, 1kg, specific heat = 502 j/kgk) filled with air (assume monoatomic ideal gas: v = 4 l, p=1 atm, t=25c) is heated by 10 g of wood (heat of combustion = 21.2 mj/kg). assume all heat produced by combustion is transferred to the pot and that the pot cannot dissipate heat. what is the final temperature of the gas of the pot?
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Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
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Engineering, 04.07.2019 18:20
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
An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
Answers: 3
Engineering, 04.07.2019 18:20
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
Apressure cooker (steel, 1kg, specific heat = 502 j/kgk) filled with air (assume monoatomic ideal ga...
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