Question

a heat pump operates on the ideal vapor compression refrigerant cycle and uses redrigerant-134a as thebworking...

a heat pump operates on the ideal vapor compression refrigerant cycle and uses redrigerant-134a as thebworking fluid. the condensor operates at 1200kpa and the evaportor at 280kpa. calculate 1) the cop of the heat pump 2) the rate of heat supplied to the evaporator when compressor consumes 20kw

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating capacity...
Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating capacity of 60,000 Btu/h. The condenser operates at 240 lbf/in.2, and the evaporator temperature is 0°F. The refrigerant is a saturated vapor at the evaporator exit and a liquid at 110°F at the condenser exit. Pressure drops in the flows through the evaporator and condenser are negligible. The compression process is adiabatic, and the temperature at the compressor exit is 180°F. Determine (a) the mass...
An ideal vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid....
An ideal vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 1 bar, and saturated liquid exits the condenser at 4 bar. The mass flow rate of refrigerant is 8.5 kg/min. Determine the compressor power, in kW.
Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 35 kW to...
Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 35 kW to heat a dwelling on a day when the outside temperature is below freezing. Saturated vapor enters the compressor at 2.6 bar, and saturated liquid exits the condenser, which operates at 8 bar. Determine for an isentropic compressor efficiency of 85%: (a) the refrigerant mass flow rate, in kg/s. (b) the magnitude of the compressor power, in kW. (c) the coefficient of performance.
Consider a 280 kJ/min refrigeration system that operates on an ideal vapor-compression refrigeration cycle with refrigerant-134a...
Consider a 280 kJ/min refrigeration system that operates on an ideal vapor-compression refrigeration cycle with refrigerant-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 140 kPa and is compressed to 800 kPa. The saturated refrigerant-134a—pressure table (in SI units) is given below. Determine the quality of the refrigerant at the end of the throttling process.
An air conditioner using refrigerant-134a as the working fluid and operating on the ideal vapor-compression refrigeration...
An air conditioner using refrigerant-134a as the working fluid and operating on the ideal vapor-compression refrigeration cycle is to maintain a space at 36°C while operating its condenser at 1600 kPa. Determine the COP of the system when a temperature difference of 4°C is allowed for the transfer of heat in the evaporator. (Take the required values from saturated refrigerant-134a tables.)
An ice-making machine operates on the ideal vapor-compression cycle, using refrigerant-134a. The refrigerant enters the compressor...
An ice-making machine operates on the ideal vapor-compression cycle, using refrigerant-134a. The refrigerant enters the compressor as saturated vapor at 20 psia and leaves the condenser as saturated liquid at 80 psia. Water enters the ice machine at 55°F and leaves as ice at 25°F. For an ice production rate of 15 lbm/h, determine the power input to the ice machine (169 Btu of heat needs to be removed. Compressor's efficiency is 90 percent
An ice-making machine operates on the ideal vapor-compression cycle, using R-134a. The refrigerant enters the compressor...
An ice-making machine operates on the ideal vapor-compression cycle, using R-134a. The refrigerant enters the compressor as saturated vapor at 140 kPa and leaves the condenser as saturated liquid at 600 kPa. Water enters the ice machine at 13oC and leaves as ice at -4oC, while removing heat at 393 kJ per kg of water. Estimate the mass flow rate of the refrigerant and the power input to the ice machine for an ice production rate of 7 kg/h.
Refrigerant 134a is the working fluid in an ideal vapor-compression refrigeration cycle operating at steady state....
Refrigerant 134a is the working fluid in an ideal vapor-compression refrigeration cycle operating at steady state. Refrigerant enters the compressor at 1 bar, -12°C, and the condenser pressure is 9 bar. Liquid exits the condenser at 32°C. The mass flow rate of refrigerant is 7 kg/min. Determine: (a) the magnitude of the compressor power, in kW. (b) the refrigeration capacity, in tons. (c) the coefficient of performance.
an ideal vapor compression refrigeration cycle using refrigerant-134a as the working fluid is used to cool...
an ideal vapor compression refrigeration cycle using refrigerant-134a as the working fluid is used to cool a brine solution to -5degrees Celsius. This solution is pumped to various buildings for the purpose of air-conditioning. The refrigerant evaporates at -10 degrees Celsius with a total mass flow rate of 7kg/s and condenses at 600kPa Determine a) the COP of the cycle and b) The total cooling load
A vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated...
A vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 2 bar, and saturated liquid exits the condenser at 8 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, (1 ton = 3.5168 kW) and, (c) the coefficient of performance, (d) rate of entropy production in kW/K, for the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT