Engineering, 08.04.2021 21:30 Ain805
Refrigerant-134a flows through a Carnot heat pump cycle at 0.80 kg/s. It is known that the maximum absolute temperature in the cycle is 1.3 times the minimum absolute temperature, and the net power input to the cycle is 20 kW. If the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kJ/kg (with 3 significant figures).
Answers: 3
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Engineering, 04.07.2019 18:10
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
Engineering, 04.07.2019 18:20
Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.
Answers: 3
Refrigerant-134a flows through a Carnot heat pump cycle at 0.80 kg/s. It is known that the maximum a...
Mathematics, 09.12.2021 14:00
English, 09.12.2021 14:00
English, 09.12.2021 14:00
English, 09.12.2021 14:00
Mathematics, 09.12.2021 14:00
English, 09.12.2021 14:00
Mathematics, 09.12.2021 14:00
History, 09.12.2021 14:00
History, 09.12.2021 14:00
Chemistry, 09.12.2021 14:00
Computers and Technology, 09.12.2021 14:00
English, 09.12.2021 14:00
English, 09.12.2021 14:00