A geothermal powerplant consists of a flash chamber (basically a yalve) which decreases the pressure of the entering hot water. The saturated liquid-vapor mixture exiting to a separator which separates the liquid and vapor phases of the separator is then sent to a steam turbine to produce shaft power. chamber as saturated liquid at T1 °C with a mass flow rate of i the flash chamber is sent that water enters the flash The flash chamber reduces the a quality (x) of 0.1, calculate the power produced by the turbine. Assume all components are adiabatic and neglect kinetic and potential energy changes. Note: N1 is the last two digits of your student Then, T1 = 200 + N1, M = 30 + N2. heip in pt these que

A geothermal powerplant consists of a flash chamber (basically a yalve) which decreases the pressure of the entering hot water. The saturated liquid-vapor mixture exiting to a separator which separates the liquid and vapor phases of the separator is then sent to a steam turbine to produce shaft power. chamber as saturated liquid at T1 °C with a mass flow rate of i the flash chamber is sent that water enters the flash The flash chamber reduces the a quality (x) of 0.1, calculate the power produced by the turbine. Assume all components are adiabatic and neglect kinetic and potential energy changes. Note: N1 is the last two digits of your student Then, T1 = 200 + N1, M = 30 + N2. heip in pt these que

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 13RQ: Condensers in these refrigerators are all_______cooled.

See similar textbooks

Similar questions

In an ammonia refrigerator , the pressure in the evaporator is 267. 58 KPa and theammonia at is 0.14 dry while at the exit is 0.86 dry . During compression the work done per kgof ammonia is 20 ,000 kg .m . Calculate volume of the vapor entering the compressor per minuteif the rate of ammonia circulation is 6.54 kg. The compressor has a volumetric efficiency of 90%and it runs at 150 rpm .The ratio of stroke to bore is 1 .Latent enthalpy of ammonia at basedon its evaporating pressure is 320 Kcal per kg and its latent specific volume of ammonia basedon its evaporating pressure is 0.436 m3 per kg .Specific volume of ammonia .A) 2.23 C) 2.46B) 3.23 D) 4.62
Define the Reversible Isothermal Compression
I need help on the following question: The vapour compression cycle (picture provided), utilises the refrigerant R134a flowing at 0.05 kg s-1. Assuming that the compression is adiabatic and reversible. If the actual input power to the compressor is 2 kW, then: 1. You need to determine the theoretical input power to the compressor and the heat transfer (Φ) to theevaporator. Take the enthalpies h1, h2, and h3 to be 238.41, 263.68 and 81.5 kJ kg-1 (use the 'NH3 Refrigeration Table' where you can find online). 2. You need to determine the coefficient of performance based on your answer to the previous question (1). 3. You need to determine the compressors mechanical efficiency.
A refrigerant 22 vapor compression system includes a liquid-to-suction heat exchanger in the system. The heat exchanger cools the saturated liquid from the condenser from 32°C to 21°C with vapor which comes from the evaporator at -10°C. The compressor is capable of pumping 20 L/sec of refrigerant. What is the enthalpy of the refrigerant at the suction of the compressor neglecting the heat exchanger? What is the isenthalpic value of the refrigerant in the system neglecting the heat exchanger? What is the refrigerant's enthalpy after compression? What is the COP of the system neglecting the heat exchanger? What is the enthalpy of the refrigerant before it enters in the expansion valve? What is the approximate enthalpy of the refrigerant at the suction of the compressor? What is the estimated enthalpy of the refrigerant after compression? What is the COP of the system? What is the refrigerating capacity of the system in TOR if: a.) without hex and b.) with hex?
A refrigeration system is to be used to cool 45,000kg water for 32 Celsius to 19 Celsius in 5 hours. The refrigerant is R-134A and the operating condition are evaporating pressure 810 kPa and 1800 kPa liquefication pressure. Determine COP, quantity of cooling water in the condenser for an increase in temperature of 7 Celsius compressor power, volume of flow rate entering the compressor. With schematic diagram. Using this table https://www.docdroid.net/VkxK8WH/refrigerant-134a-pdf
A vapor compression refrigeration systemhas an enthalpy of saturated liquid at the hightemperature side is 341.769 kJ/kg while at lowtemperature side is 131.27 kJ/kg and a latentheat of vaporization of 1312.63 kJ/kg. If themass flow rate of refrigerant is 0.50 kg/s.compute the tons of refrigeration.
The large insulated flash chamber of a vacuum refrigeration plant is kept at low temperatureby a steam jet which pumps vapor to a condenser . The condensate pump removes thecondensate formed and an air ejector discharges air from the condenser to an air vent .Warm water returns enters the flash chamber at 13 deg C ; chilled water leaves the flashchamber at 4 deg C . The vapor leaving the flash chamber has a dryness factor of 97% andthe condenser inside temperature is 32 deg C . For 100 tons of refrigeration , determine thequantity in cubic meter per minute of chilled water at 4 deg C that the system can provide .A) 0.45 B) 0.56 C) 9.33 D) 0.75
An ammonia simple vapor operates between evaporator and condenser temperature of -20°C and 35°C respectively. The system used producing 5000kg of ice in 20hrs. A 100x200mm compressor with a compression efficiency of 80% and electric input to the motor driving the compressor is 14kW. Motor efficiency is 90%. Determine: (a) Qe (b) Work indicated (c) Brake work (d) Mechanical efficiency
A compressor has an isentropic efficiency of 80% and compresses refrigerant. The refrigerantenters as a saturated vapor at 100kPa and leaves at 1000kPa with a mass flow rate of .5 kg/s.Determine:a. The temperature of the refrigerant at the exist of the compressor.b. The power input, in kW requiredc. Repeat parts A and C but assume it is isentropic
4. The refrigerant 134-a enters the compressor of a refrigeration machine as superheated vapor at a flow rate of 0.12 kg/s, a pressure of 0.14 MPa, and a temperature of -10 °C. It exits at a pressure of 0.7 MPa and a temperature of 50 °C. The refrigerant exits the condenser at a temperature of 24 °C and a pressure of 0.65 MPa and is then throttled to a pressure of 0.15 MPa. Show the cycle on a T-s diagram, including the saturated liquid and saturated vapor lines. Also, a) Calculate the heat extracted from the environment per unit time and the power required to operate the compressor, b) The isentropic efficiency of the compressor, c) The coefficient of performance of the refrigeration machine. Note: This is a question from the thermodynamics course. Please provide a clear and prompt solution.
a desuperheater insulated unit (figure F) converts the inputs into asaturated vapor stream. Determine the mass flow rate of the superheatedstream. . Determine the enthalpy of liquid water both from table 5.1, table 5.4. What is your conclusion from this comparison?
A condenser takes in steam with enthalpy of 2450 kJ/kg and mass flowrate of 2 kg/s. It also discharges water at 20 kPa. What is the rate of heat removal of this system?