Question

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.

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
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 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.
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.
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.
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...
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.
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
An idea vapor-compression refrigeration cycle, with refrigerant R-22 as the working fluid, has an evaporator temperature...
An idea vapor-compression refrigeration cycle, with refrigerant R-22 as the working fluid, has an evaporator temperature of -12 °C and a condenser pressure of 15 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The refrigerating capacity is 4 tons. a.Determine the compressor power (in kW). b.Determine the mass flow rate of the refrigerant (in kg/min). c.Determine the coefficient of performance.
Consider a commercial refrigerator which operates on the refrigeration cycle. R- 134a is used as the...
Consider a commercial refrigerator which operates on the refrigeration cycle. R- 134a is used as the working uid and the refrigerated space is kept at -25oC by rejecting its waste heat to cooling water that enters the condenser at room temperature, that is 20oC, at a rate of 0.1 kg/s and leaves at 40oC. The refrigerant enters the condenser at 1.2 MPa and 70oC and leaves at 40oC. The inlet state of the compressor is saturated vapor at 100 kPa...
Regarding a Vapor-Compression cycle: A refrigerant (HCFC-22) enters the compressor of a refrigerator as a superheated...
Regarding a Vapor-Compression cycle: A refrigerant (HCFC-22) enters the compressor of a refrigerator as a superheated vapor at .14MPa and -20 degrees Celsius at a rate of .05 kg/s and leaves at .8 MPa and 50 degrees Celsius. The refrigerant is cooled in the condenser to 26 degrees Celsius and .72MPa and is then throttled down to .15 MPa. Determine the rate of heat removal from the refrigerated space and the power input to the compressor and the Coefficient of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT