What should be the capacity of air-conditioner for the room shown in figure. 1.50 2.00 2.50 m Room 2.50 m 5.50 m

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Q: What is the internal energy of the system and how can it be changed?

A: Explanation  Internal Energy : Internal energy of the system is the total energy contained within…

Q: (a) mass flow rate of refrigerant in kg/s (b) mass flow rate of refrigerant per ton of refrigeration…

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Q: mic system

A: given: name two property of thermodynamic system?

Q: 6. What is the total cost of using the following at 9¢ per kilowatthour? a. 110W TV set for 4 h b.…

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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: A newly installed refrigeration system produces 250 Btu/lb of cooling Calculate the mass of…

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Q: What is the Kelvin equivalent of 70 0F.

A: Given data: The temperature is TF = 70 oF.

Q: Room (A) contains only an air conditioner with 6 KW capacity that works 3 hours per day Room (B)…

A: Given Data : Room A : PA=6 kwtA=3 hours Room B : PA=0,9 kwtA=20 hours

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Q: A heat pump with the COP of 2.2 supplies heat at the rate of 186 kJ/min. Determine the rate of heat…

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Q: The power requirement of a 3-stage compressor (in kW, two decimal places) in order to supply air at…

A: To Find : The actual power requirement. Given :  The temperature is T=20°C. The discharge is Q=250…

Q: 2. Find the volume, which is needed to calculate the heat pump size.

A: Solution for Question (2): Given, Diameter = D = 40 ft   From diameter, radius can be calculated as,…

Q: Water is pumped from a chiller in the basement, where z1=0m, to a cooling coil located on the 20th…

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Q: n of refrigeration me

A: given: one ton of refrigeration means?

Q: systems use compressed air to deliver work.

A: Pneumatic system.

Q: The volume of the compressor tank is 3.5 ft2, when the pressures reach 20 psi. What is the work done…

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Q: A refrigeration system is used to cool water in the evaporator at 7.5 kg/s from 30°℃ to 4°C.Find the…

A: Given data: m˙=7.5 kg/sT1=30°CT2=4°CCOP=5 Need to determine the required compressor power.

Q: 2- The efficiency indicator for a refrigerant cycle is coefficient of performance cop which is…

A: Aa per bartleby guidelines we are allowed to solve only 1st question if multiple questions are…

Q: 1.3) Calculate the COP of an air conditioner. Inside the building T = 20°C, while the outside it is…

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Q: Pls.answer thank you! Water enters the cooling tower at 55 °C and leaves at 30 °C while the heat…

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Q: for Efficiency, Work Flow rate and Qa a

A: An open heat exchanger is one in which separated steam is permitted to blend in with the feedwater.…

Q: The reheat process is O decreases the turbine work increases the pump efficiency O decreases the…

A: Reheating Process:  In the Rankine cycle when superheated steam two times expanded in two turbines,…

Q: A 1-ton air conditioner is a unit that will remove the amount of heat neededto melt one ton of ice…

A: Given: Latent heat of fusion of ice=144Btu/lb

Q: The net work done during a cycle is the difference between the work done by the system and the work…

A: The given P-V curve consists of two processes, 1-B-2 and 2-A-1 and thus forming a cycle.  In the…

Q: 9. With the use of centrifugal pump, the heat transfer is maximum.

A: Solution:

Q: Compute the total work done by a gas system shown in figure below following expansion processes:

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Q: The low efficiency of a system means an extra heat energy was added Ture O False O

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Q: A refrigeration system has a heat added of 440 kw. If COP is 7,find the mass of cooling water in the…

A: GivenQ=440kWCOP=7m=?∆T=14oC increases in water

Q: 1. Make a control volume around the whole power plant in Fig. 1.1 and list the flows of mass and…

A: Given Power plant To find Control volume Mass flow Energy flow

Q: actual motion of the heated particles, it is referred to transfer by

A: TO determine: When heat is transferred from one particle of a body to another by actual motion of…

Q: the maximum temperature, in °R. the maximum pressure, in Ibf/in.2 the percent thermal efficiency.

A: Given: Otto cycle P1=14.2 lbf/in2 T1=520 R Compression ratio=12 Heat added=600 Btu/lbm TO determine:

Q: Give the Energy balance at an open heater

A: We know that, open heater (open feed water heater) is used with Rankine cycle for regeneration. For…

Q: The power required to drive the compressor in Carnot refrigeration is 50 Hp. It operates between…

A: GivenCarnot refrigeration systempower required to compressor W=50HPT1=-5oC=268KT2=40oC=313K

Q: Consider a pan of water being heated by placing it on an electric range? Explain.

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Q: The following relation: Tma Xoa. Toa + (1-Xoa). Tra is derived by using a heat balance between: a)…

A: To have an estimation of ventilation air provided by mechanical system, an enthalpy balance…

Q: QUESTION 4 4.1 Write the expression used to define the following: (a) volumetric efficiency (b)…

A: (a) To define: The volumetric efficiency with the expression. Explanation: The ratio of the actual…

Q: Q2 Figure Q2, A turbo-compressor supplies power to the air-conditi- (Refrigerant) with 900.0 kw.…

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Q: Determine the COP of the heat pump.

A: Given data; An industrial heat pump operates between the temperatures of; T1=270 C…

Q: A heat pump with the COP of 2.2 supplies heat at the rate of 219 kJ/min. Determine the rate of heat…

A: To find : The rate of heat transferred from the atmosphere. Given : The COP of heat pump is…

Q: ii. The COP for a refrigerator is 6. The ratio of its highest temperature to the lowest temperature.

A: In general ,  for a Carnot engine , T1 is the lowest temperature and T2 is highest temperature.…

Q: 1. Define a 1-ton air conditioning unit. In terms of energy, what does the term "1 ton" mean?

A: 1) What does 1 ton mean? 1 ton in Air conditioning doesn't mean anything about its weight. This ton…

Q: 15. A commercial refrigeration system with a single suction line and multiple evaporators can…

A: A commercial refrigeration system with a single suction line and multiple evaporators can maintain a…

Q: ate is 30 kg/min. Determine a) the tons of refrigeration b) the power required c) the COP.

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Q: DEFINE THE REFRIGERATORS AND HEAT PUMPS

A: Refrigerator: Refrigerator is the device used to keep the things at the temperature below than the…

Q: In a condenser containing air and water, the air pressure is 13 kPa abs. what is the gage pressure…

A: Given data: Pabsair=13 kPah=1.24 m Need to determine the gage pressure at a point 1.24 m below the…

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.