Describe why variable-speed compressor motors are more efficient than single-speed motors in heat pump systems.

Q: The catalogue for a refrigerant 22, four-cylinder, hermetic compressor operating at 29 r/s. a…

A: From properties of refrigerant table    A-6: for 4°C=h1=403.876 KJ/kg…

Q: Describe the Internally and Externally Reversible Processes

A: A process is said to be the internally reversible process in which the system returns to its…

Q: installing a spray condenser with a wet type cooling tower is not practical Choice. explain why?

A: When installing a condenser with cooling tower than in that case there are different types of flow…

Q: Task 5 Illustrate the contradiction between refrigeration cycles and the second law of…

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Q: Explain the principle of operation of a refrigerator (include a simple diagram).

A: Refrigerator is a device which gives refrigerating effect by consuming work.

Q: 18. How many tons of refrigeration effect can be obtained from a window air conditioner rated at…

A: Ton of refrigeration(TR) is the unit for heat removal Heat removal = Q = 18000 Btu/hr Find Ton of…

Q: determine the total power required for individual compressors for evaporator loads of 5 tons at…

A: calculated the total power required in KW.

Q: Construct didactic sketches, showing the operating principles of both heat pumps and refrigeration…

A: Refrigerant= HFC-134a High pressure line = 0.8 MPa Low pressure line = -10oC Refrigerant mass flow…

Q: Why Power consumption per ton of refrigeration_with wet compression is less as ompared to dry…

A:

Q: What is a heat pump and how does it work?

A: Note- I only give one solution at one time for other question you will upload again.

Q: Describe the Part of the heat received by a heat engine is converted to work, while the rest is…

A: The second law of thermodynamics heat engine only converts a part of heat absorbed from the source…

Q: Discuss the advantages of using multi-stage refrigeration cycle for large industrial applications.

A: When two or more compressor numbers are connected in a series with an intercooler in the middle of…

Q: Why are centrifugal fans with backward inclined blades desirable?

A: centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to…

Q: Explain why a heat pump system is more cost-effective in winter season in  Alaska but not in houses…

A: To explain:  The reason that a heat pump system is more cost-effective in winter season in country A…

Q: Draw the schematic diagram of a standard Vapor Compression Refrigeration Cycle. Label the main parts…

A:

Q: Explain how refrigerant and oil leakage are found in a waterless, earth-coupled, closedloop…

A: Geothermal Heat Pump

Q: Define the objective of a heat pump is to supply heat QH into the warmer space.

A: The heat pump is a device that is used to supply heat to the system at high temperatures known as…

Q: What is the basic premise the Heat Pump technology relies on?

A: The detailed solution is given below:

Q: Can you explain the parts of the vapor compression refrigeration machine below

A: The vapor compression refrigeration machine is based on the vapor compression refrigeration system.…

Q: During a test run of an ammonia refrigerating cycle test data are as follows: Suction pressure = 250…

A: Given data, The refrigerant is ammonia Suction pressure or evaporator pressure, Pevap = 250 kPa…

Q: DISCUSS THE FUNCTIONS OF AN INTER-COOLER IN A REFRIGERATION SYSTEM...

A: Solution: The different functions of an inter-cooler in a refrigeration system are:

Q: Which of the following is an example of an external irreversibility associated with a power plant?…

A: Irreversibility:  It is the process in which heat is transferred through a finite temperature. It…

Q: When a refrigeration system that produces low or no cooling has high suction pressure and low head…

A: For high pressure suction to occur you may have insufficient compressor which means your…

Q: What are the applications of Backward Inclined centrifugal fans?

A: Backward Inclined centrifugal fans When centrifugal force is generated by a blades present on…

Q: ENUMERATE THE FOUR MAJOR PARTS OF A REFRIGERATION CYCLE AND DESCRIBE BRIEFLY HOW A REFRIGERATION…

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Q: 3.) Draw a schematic diagram of a simple refrigeration vapor-compression cycle, and explain the…

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Q: Where is the only permanent suction line on a heat pump?

A: The heat pump is a device used to taken heat from the outside environment and take it to our home.…

Q: . Calculate the heat effect for this heat pump cycle  2. Calculate the coefficient of performance…

A: From the pressure table of R134 a For cycle 1: At 80 kPa (saturated vapor) h1=231.46 kJ/kg…

Q: Determine the total power required for individual compressors for evaporator loads of 20 tons at…

A:

Q: Explain the principle of operation of geothermal heat pump depicted in

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Q: What are the classes of commercial warm-air ducts?

A: Given Data : Commercial warm-air ducts

Q: Describe the ideal process for an adiabatic compressor.

A: The ideal process for an adiabatic compressor is a reversible process. Adiabatic is a condition in…

Q: A standard vapour compression cycle using freon 22 operates on simple saturation cycle at the…

A:

Q: Describe how a heat engine operates and sketch a diagram showing the main elements of this system.

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Q: What  are many different kinds and variations of the refrigeration cycle components؟

A: Solution:

Q: 2-a Explain the effect of pressure ratio on the net work and the efficiency of a steam power cycle.

A: To determine: Effect of pressure ratio on Wnet and ηcycle of steam power plant

Q: (a) The total power output of the turbine (b) The temperature rise of the cooling water from the…

A:

Q: Explain the condenser coils of a refrigerator must be cleaned periodically, and the airflow passages…

A: Dirty condenser  coils not only increase energy use and force the appliance to work harder, but they…

Q: 1. The events of a cascade, split-stage, low temperature refrigerating cycle are as follows; A Freon…

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Q: Draw a T-s plot and a block flow diagram of an ideal refrigeration cycle

A:

Q: Discuss the advantages of using multi-stage refrigeration cycle

A: Given; A multi stage refrigeration cycle is a system with two or more low side pressure where low…

Q: Enumerate the four processes comprised in the cycle of a typical heat engine

A: A heat engine is a device that is used to generate mechanical power from the combustion of the fuel.…

Q: g coil in an air-conditioner is 0.7. The by-pass factor, if thres such cooling colls with the same…

A:

Q: Explain why a rectangular PV cycle, as considered, cannot be used (in reverse) for refrigeration.

A: Because it follow the only well defined equilibrium states . For the reversible process we have to…

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.