A Cascade refrigeration system using R-410A and a heat exchanger is operating an evaporator with a capacity of 8 tons and temperature of -30°C. If the heat exchanger produces 1.0 Mpa and the condensing temperature is 50°C, determine the COP and the refrigerating efficiency of the system. Draw the schematic diagram of the system and assume ideal conditions.

A Cascade refrigeration system using R-410A and a heat exchanger is operating an evaporator with a capacity of 8 tons and temperature of -30°C. If the heat exchanger produces 1.0 Mpa and the condensing temperature is 50°C, determine the COP and the refrigerating efficiency of the system. Draw the schematic diagram of the system and assume ideal conditions.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter47: High-pressure, Low-pressure, And Absorption Chilled-water Systems

Section: Chapter Questions

Problem 13RQ: The subcooling temperature in a condenser can be measured by taking the difference between the A....

See similar textbooks

Similar questions

The subcooling temperature in a condenser can be measured by taking the difference between the A. suction pressure converted to temperature and the boiling refrigerant. B. boiling temperature and the condensing temperature. C. condensing temperature and the leaving-refrigerant temperature. D). condensing temperature and the entering-refrigerant temperature.
Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______, and
Two methods used to power refrigeration compressors on a ship are _____and ____.
The function of the pressure tank in an open-loop, geo-thermal heat pump well system is to prevent the well pump from _____.
The food storage room requires a cooling system with a capacity of 15 tons and refrigeration that operates at an evaporator temperature of -17.5 degrees Celsius and a condenser temperature of 37.0 degrees Celsius. The refrigerant used is R - 134 A and the operating system is saturated. Determine C.O.P, refrigerant flow rate and heat loss rate in the condenser.
The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that operates at an evaporator temperature of -17.8 Celsius and a condenser temperature of 28 degrees Celsius. The refrigerant used is R - 717 and the system operates in saturated conditions. Determine C.O.P, refrigerant flow rate and heat loss rate in the condenser.
am ice plant of 200 tons refrigeration capacity makes use of the shell and tub e remover. the temperature is discharge is 112 C and vapor is cooler to 52 C. water enters at 24 C and is heated during ther counterflow with vapor to 70 C. the compressor operature at 1352.2 kpaa condenser pressure and 247.14 kpaa evaporates pressure. the overall coefficient of the heat transfer is 390 kj/hr-m-c. calculate the LMTD.
The food storage room requires a cooling system with a capacity of 15 tons of refrigeration that operates at an evaporator temperature of -17.5 Celsius and a condenser temperature of 38.9 degrees Celsius. The refrigerant used is R-134a and the system operates in saturated conditions. Determine C.O.P, refrigerant flow rate and heat loss rate in the condenser.
The food storage room requires a cooling system with a capacity of 10 tons of refrigeration that operates at an evaporator temperature of -17.8 ° C and a condenser temperature of 30.1 ° C. The refrigerant used is R-717 and the system operates in saturated conditions. Determine C.O.P , Refrigerant flow rate , Heat loss rate in condenses
Fill in the blanks: An ammonia vapor compression system includes a liguid to suction vapor heat exchanger in the system. The heat exchanger warm the saturated vapor coming from the evaporator from -10°C to 5°C with liquid which comes from the condenser at 30°C. Calculate the following a.) mass flow rate of refrigerant if it vaporizes at the rate of 3 Lps from the evaporator, kg/s Qu b.) refrigeration capacity, TOR c.) compressor's work in Hp d.) COP, e) heating capacity of the heat exchanger, kW
A manufacturing company is intending to use its water cooled condenser for itsproposed cold storage room. The name plate of the condenser gives the followingspecifications:refrigerant ammoniacondenser water inlet 30 OCcondenser water outlet 40 OCcondensing temperature 35 OCrefrigerant flow 3.84 kg/mincirculating water flow 120 kg/minIf the company decided to purchase a new compressor and evaporator, find the tonnageof the system and the temperature in the evaporator, (b) what is the COP? (c) find thetheoretical hp required.
Under the established parameters of the "refrigeration & cryogenic plant for oxygen poduction", elaborate the design outdoor condtion and design indoor condition? What do you think is the refrigerant type which best for cryogenic plant