subject
Engineering, 13.08.2020 05:01 gg808

A heat pump system which uses R-134a operates on the ideal vapor compression heat pump cycle with a given compressor efficiency.--Given Values--Evaporator Temperature: T1 (C) = 0Condenser Temperature: T3 (C) = 37Heating Capacity: Qh (kW) = 5.8Compressor Efficiency: nc (%) = 84a) Determine the specific enthalpy (kJ/kg) at the compressor inlet. Your Answer =b) Determine the specific entropy (kJ/kg-K) at the compressor inlet. Your Answer =c) Determine the specific enthalpy (kJ/kg) at the compressor exit. Your Answer =d) Determine the specific enthalpy (kJ/kg) at the condenser exit. Your Answer =e) Determine the specific enthalpy (kJ/kg) at the evaporator inlet. Your Answer =f) Determine the coefficient of performance for the system. Your Answer =g) Determine the mass flow rate (kg/s) of refrigerant through the system. Your Answer =h) Determine the power input (kW)to the compressor. Your Answer =

ansver
Answers: 2

Another question on Engineering

question
Engineering, 03.07.2019 14:10
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
question
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
question
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
question
Engineering, 04.07.2019 18:10
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
You know the right answer?
A heat pump system which uses R-134a operates on the ideal vapor compression heat pump cycle with a...
Questions
question
Mathematics, 01.02.2021 22:50
question
Physics, 01.02.2021 22:50
question
English, 01.02.2021 22:50
question
History, 01.02.2021 22:50
Questions on the website: 13722363