An ideal vapor compression refrigeration cycle is modified to include a counter flow heat exchanger between the stream exiting the condenser and the evaporator. R-12 is the working fluid. Data are known at various locations; the mass flow rate is given. Determine (a) refrigerant capacity (b) power input required in the compressor (c) COP. 20 bar CONDENSER 40c+3 1 bar 10C 20 bar 40C 3 R-12 20 bar 10C 1 bar sat.vap 1 1 bar EVAPORATOR m=.12 kg/s

An ideal vapor compression refrigeration cycle is modified to include a counter flow heat exchanger between the stream exiting the condenser and the evaporator. R-12 is the working fluid. Data are known at various locations; the mass flow rate is given. Determine (a) refrigerant capacity (b) power input required in the compressor (c) COP. 20 bar CONDENSER 40c+3 1 bar 10C 20 bar 40C 3 R-12 20 bar 10C 1 bar sat.vap 1 1 bar EVAPORATOR m=.12 kg/s

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

Chapter22: Condensers

Section: Chapter Questions

Problem 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...

See similar textbooks

Similar questions

When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be higher in temperature than the entering air temperature.
Define flash gas, and explain how it applies to the net refrigeration effect of the refrigeration cycle.
What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration applications?
The defrost cycle in a domestic refrigerator may be terminated by two methods: ___and___.
How will oversizing the buffer tank on a water-to-water heat pump system affect the run time of the system?
What are higher-efficiency refrigerant blends that can be used as long-term replacements for R-22 in residential and light-commercial air-conditioning applications?
Why is truck refrigeration designed to provide low- and medium-temperature refrigeration?
The values of a vapor compression refrigeration cycle were given below. Calculate the values ofrefrigerant flow rate, refrigeration capacity, and the COP of the system.T1= Evaporator water outlet = 10 °CT2= Evaporator water inlet = 16 °CT3= Condenser water inlet = 16 °CT4= Condenser water outlet = 22°CCooling water flow rate = 1.5 L/minHeating water flow rate = 1.5 L/minEnthalpy of R134a in evaporator outlet = 305 kj/kg,Enthalpy of R134a in evaporator inlet =115 kj/kgEnthalpy of R134a in condenser inlet =327 kj/kg
A R-134A vapor refrigeration cycle cycle operates at an evaporator temperature of 20 Celsius and a condensing temperature of 35 Celsius. Determine the coefficient performance for. Ideal saturation cycle. Wet compression with saturated vapor leaving the compressor . Suction to the compressor is superheated by 7 degrees Celsius. Using this table https://www.docdroid.net/VkxK8WH/refrigerant-134a-pdf
An ideal gas refrigeration cycle uses air as the working fluid to maintain the cooled room temperature at -23°C (exiting the cooled space heat exchanger) and dissipates heat to the surroundings at 32°C (air temperature before entering the turbine). Compressor pressure ratio 3.5. If the flow rate of the working fluid is 0.075 kg/s, calculate: a). Maximum and minimum temperature cycles. b). COP c). Cooling rate
Air enters the compressor of an ideal Brayton refrigeration cycle at 100 kPa, 270 K. The compressor pressure ratio is 3 and the temperature at the turbine inlet is 310 K. Determine:d).the coefficient of performance of a Carnot refrigeration cycle operating between thermal reservoirs at TC 270 K and TH 310 K, respectively. The above Brayton refrigeration cycle is modified by introducing a regenerative heat exchanger. In the modified cycle, the compressed air enters the regenerative heat exchanger at 310 K and is cooled to 280 K before entering the turbine. Determine for the modified cycle:(e).the lowest temperature, in K.f).the net work input per unit mass of air flow, in kJ / kg.
A R-134A vapor refrigeration cycle cycle operates at an evaporator temperature of 20 Celsius and a condensing temperature of 35 Celsius. Determine the coefficient performance for. Ideal saturation cycle. Wet compression with saturated vapor leaving the compressor. Suction to the compressor is superheated by 7 degrees Celsius. with Schemathic diagram. Using this table https://www.docdroid.net/VkxK8WH/refrigerant-134a-pdf