Fundamental energy conversion devices of conventional technologies are heat engines, refrigerators, and heat pumps; they either produce or consume work. For these devices a. Show basic operation principles with the simplest schematics which are sufficient for defining the thermal efficiency and COP of the devices b. Express thermal efficiency and COP of these devices

Q: A heat pump is used to extract heat from the outside atmosphere to heat the inside of a building.…

A: Given:The COP of a heat pump is the heat-losing rate is

Q: thermal heat pump with a coefficient of performance of 1.3 supplies a building with 48000 BTU/hr of…

A: Given:COP of heat pump=1.3Heat supplied, Qa=48000 BTU/hrRate, R=$0.20/KWh

Q: A heat pump is a device that transfer thermal energy from a lower temperature to a higher…

A: Heat pumpIt is a device that extracts heat from a body at a low temperature (source), and delivers…

Q: how many kW is the compressor power?,

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Q: A heat pump absorbs 10 kW of heat from outside environment at 250 K While absorbing 15 kW of work.…

A: Given, Heat absorbed from outside environment = Q1 = 10 kW Work done = W = 15 kW   Heat rejected to…

Q: 1. The four heat engines shown below have the maximum possible efficiency. Rank from smallest to…

A: Given data: -  The temperature of the hot region is Th. The temperature of the colder region is Tc.

Q: A uniform, 7.5-m-long beam weighing 6490 N is hinged to a wall and supported by a thin cable…

A: The given system is shown below, OA=7.5 m,Weight of the beam, W=6490 N,AB=1.5 m. Drawing the FBD of…

Q: costs 8 cents per kW-hr, determine the minimum theoretical operating cost to heat the house for 24…

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Q: 1. A Carnot heat engine absorbs heat at a rate of 10 kJ/s from a source at 500°C and rejects the…

A: The heat absorbs by the heat engine is Q1=10 kJ/s. The temperature of the source is T1=500°C=773 K.…

Q: 2. A cyclic machine is used to transfer heat from a higher to a lower- temperature reservoir, as…

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Q: A heat pump has a coefficient of performance equal to 4.25 and requires a power of 1.61 kW to…

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Q: 3.Two Carnot heat engines run in series with the efficiency of first engine is 1/k times the second.…

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Q: A heat pump system operates between temperature limits of -5 and 18°C. The heating load of the space…

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Q: Determine the expressions for the thermal efficiencies and coefficients of performance for…

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Q: A 70 MW thermal power plant, which receives heat from a 350 °C deki thermal source, leaves 35 MW of…

A: Given: Power, P = 70 MW Heat rejected, Hr = 35 MW Heat source temperature, T1 = 350 °C Heat sink…

Q: - (II) An ideal heat pump is used to maintain the inside temperature of a house at Tin = 22°C when…

A: Given data Inside temperature of house = Tin = 22 °Cheat pump does a work rate = 1700 WThe heat loss…

Q: .Mexico's metro requires the implementation of an air conditioning system for each of its cars. On…

A: Given:Ti=45°CTf=25°CV=17 m x 2.5 x 2n=130v=0.06 m3/personQ=30 KJt=1 min

Q: 1) Provide equations that best match the following: • Total boundary work • Boundary work for a…

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Q: A heat pump with a motor of 2 kW is used to keep a chicken hatchery at 30°C. This latter loses…

A: Given: The power of motor, W = 2 kW The temperature at the chicken hatchery, T1 = 30oC The heat loss…

Q: Define the thermal efficiency of a power plant, which is of primary interest in thermodynamics

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Q: heat engine is a device able to transform work into heat  true or false

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Q: Calculate the work done (W) when heat supplied to a system is by means of hot water from an engine…

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Q: QI (ii) Figure QI (ii) a residential heat pump plant has a coefficient of Performance 2.4. Calculate…

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Q: eat engine work

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Q: Maximum possible thermal efficiency of heat engine operating between temperature (A) T1 = 80 C and…

A: Heat engine is a thermodynamic equipment which is used to convert the thermal heat energy into…

Q: In your own words, define efficiency as it applies to a device designed to perform an energy…

A: The energy can be transformed or converted from one from to another form. The complete conversion of…

Q: Calculate the work done (W) when heat supplied to a system is by means of hot water from an engine…

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Q: An inventor claims to have a solar powered heat pump that receives energy as heat from the sun at…

A: COP of given heat pump=Q2WNow,W=10KWQ1=7KWNow,Q1+W=Q2⇒Q2=(10+7)=17KW⇒COP=1710KW=1.7Since COP>1…

Q: . A heat engine produces work equivalent to 90 kW with an efficiency of 30 percent. The heat…

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Q: Maximum possible thermal efficiency of heat engine operating between temperature (A) T1= 80 C and T2…

A: For heat engine with source temperature = T1 and sink temperature = T2, maximum possible efficiency…

Q: A heat engine with a thermal efficiency of 40 percent rejects 1000 kJ/kg of heat. Determine the…

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Q: (a) An irreversible heat engine A and a reversible heat engine B operate between the same two…

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Q: This question deals with a cylinder, which is upright. Here are the facts for the problem. Can you…

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Q: You are asked to assess the validity of a power-generating device. The device supposedly operates…

A: As total internal energy is not given and efficiency is not given   , so we can't say about anything…

Q: A heat pump is a device that transfer thermal energy from a lower temperature to a higher…

A: Given question: A heat pump is a device that transfers thermal energy from a lower temperature to a…

Q: A heat engine receives a heat-transfer at the rate of 2 MW at a high temperature of 750 °C. The…

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Q: Provide clear/complete (step by step ) solution as well as a diagram for this problem.  The…

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