Engineering, 26.03.2020 04:27 kodaxmodz
4.62 A steady-state, finite-difference analysis has been performed on a cylindrical fin with a diameter of 12 mm and a thermal conductivity of 15W/m K. The convection process is characterized by a fluid temperature of 25°C and a heat transfer coefficient of 25W/m2 K. If the temperature of the first three nodes, separated by a spatial increment of delta x = 10 mm, are T0 =100 degree C, T1 =93.4 degree C, and T2 = 89.5 degree C, determine the fin heat transfer rate. Determine the temperature at the node 3, T3.
Answers: 1
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
Engineering, 04.07.2019 18:20
Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
Answers: 1
4.62 A steady-state, finite-difference analysis has been performed on a cylindrical fin with a diame...
Mathematics, 19.02.2020 21:09
Mathematics, 19.02.2020 21:10
Social Studies, 19.02.2020 21:10
Mathematics, 19.02.2020 21:10
Social Studies, 19.02.2020 21:11