Engineering, 02.12.2020 17:10 TeenageKicks9800
Problem 10.012 SI A vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 2.6 bar, and saturated liquid exits the condenser at 12 bar. The isentropic compressor efficiency is 80%. The mass flow rate of refrigerant is 7 kg/min. Determine: (a) the compressor power, in kW. (b) the refrigeration capacity, in tons. (c) the coefficient of performance.
Answers: 1
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 18:20
Air flows over a heated plate à t a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
Engineering, 04.07.2019 19:10
Arigid tank contains 10 kg of air at 137 kpa (abs) and 21°c. more air is added to the tank until the pressure and temperature rise to 242 kpa (abs) and 32°c, respectively. determine the amount of air added to the tank. [r-0.287 kj/kg k]
Answers: 3
Engineering, 06.07.2019 02:30
Precipitation hardening can be achieved in many light alloys by a three-step heat treatment. what is carried out and what is the purpose at each step? why is such a treatment necessary based on the nucleation and growth theory of phase transformation. compare this treatment with tempering martensite for carbon steels (similarities and differences).
Answers: 1
Problem 10.012 SI A vapor-compression refrigeration cycle operates at steady state with Refrigerant...
History, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01
Advanced Placement (AP), 20.09.2020 21:01
Physics, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01
English, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01
Chemistry, 20.09.2020 21:01
Social Studies, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01
English, 20.09.2020 21:01
Mathematics, 20.09.2020 21:01