Engineering, 05.10.2019 13:30 xonyemaa12
Consider a carnot cycle of a closed system that operates between temperature reservoirs at 300 k and 1200 k. if the minimum cycle pressure is 45 kpa, and the total heat input is 120 kj/kg, what is the : a) thermal efficiency and net work of the cycle; b) the peak pressure of the cycle? you may assume air with constant specific heats, a specific heat ratio of 1.4 and gas constant of 0.287.
Answers: 2
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
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
Consider a carnot cycle of a closed system that operates between temperature reservoirs at 300 k and...
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