In the mechanical heat pump, what is the type of process that occurs in the expansion valve? Select one: a. Isentropic. b. Adiabatic. c. Isobaric. d. Isothermal.
Q: Refrigerant 22 is the working fluid in a Carnot refrigeration cycle operating at steady state. The…
A: Given data Refrigerant : R22 It enters the condenser as saturated vapor at 36°C Refrigerant exits…
Q: Define C.O.P. of the simple vapor compression refrigeration cycle R-717. The evaporation temperature…
A: The coefficient of performance or COP, of a refrigerator is defined as the ratio of the heat removed…
Q: 2- Refrigeration system has 40.2 kW TR and used tow stage R22 operate in pressure limits of 18 bar…
A: As per the question, At 4 bar pressure, enthalpy in liquid form ,hf=191.64KJ/kgenthalpy in…
Q: Refrigerant 22 is the working fluid in a Carnot refrigeration cycle operating at steady state. The…
A: To Find : The quality of refrigerant at outlet of turbine Given : The entering temperature at…
Q: A refrigeration system uses R-22 has an evaporator temp of-10°C and condenser temp of 28°C.What is…
A: Flash gas: When liquid refrigerant from condenser expands in the expansion devices like throttling…
Q: Why Power consumption per ton of refrigeration_with wet compression is less as ompared to dry…
A:
Q: The condensing and evaporating pressures in a 10 TR refrigeration system are 11.82 bar and 1.64…
A:
Q: The events of a cascade, split –stage, low temperature refrigerating cycle are as follows. A Freon…
A: For Freon 12 cycle: Evaporation temperature =0°F Condensation temperature =100°F Volumetric…
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: Task 4 A heat pump using refrigerant-134a heats a house by using underground water at 8°C as the…
A: Given: The temperature of underground water, Tw = 8°C The rate of heat loss, Qr = 60,000 kJ/h The…
Q: Refrigerant-134-a undergoes an actual vapor-compression cycle. The refrigerant enters the compressor…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A vapor-compression refrigeration cycle using ammonia as working fluid has a refrigerating capacity…
A:
Q: 1. An R22 standard refrigerating cycle operates at an evaporator pressure of 367.01 kPa and a…
A: Since we only solve upto three subparts, we will solve subparts (m), (n), and (o). Please resubmit…
Q: In a heat engine cycle, which of the following process occurs O a. heat is transferred from a…
A: option b is correct
Q: ammonia
A:
Q: question 51 An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its…
A:
Q: 1. An R22 standard refrigerating cycle operates at an evaporator pressure of 367.01 kPa and a…
A: Given that, Evaporator pressure, Pe=367.01 kPa,Condensing pressure, Pc=1833.45 kPa, From the…
Q: 29
A:
Q: Refrigerant 22 is the working fluid in a Carnot refrigeration cycle operating at steady state. The…
A: To Find : the coefficient of performance . Given : temp at evaporator Te=-30°C temp at entering at…
Q: A vapor-compression refrigeration cycle using ammonia as working fluid has a refrigerating capacity…
A:
Q: *PART B ONLY In a standard ideal refrigeration cycle (Fig. 1), the refrigerant 134a enters…
A: Given: Standard ideal refrigeration(R-134a)P1=1 MPaP2=100 kPa
Q: (c) Evaluate and compare the coefficients of performance IL COPR = СОPR Win – Wout Win
A: Given: Ideal Refrigeration cycle and a cycle with the turbine. CoP of refrigeration is the ratio of…
Q: window-mounted air conditioner supplies 19 m3/min of air at 15°C, 1 bar to a room. Air returns from…
A:
Q: The events of the Frick, split -stage , low temperature refrigerating cycle are as follows : A…
A: The T-s diagram of the given Cascade system is
Q: (iii) What is the difference between a refrigerator and a heat pump?
A: Solution to the first question (iii) as per our Company policy. To find: The difference between a…
Q: PART A ONLY ( Use Image below) In a standard ideal refrigeration cycle (Fig. 1), the refrigerant…
A: Vapor Compression cycle: An ideal vapor compression cycle has 4 process which are- Process 1-2:…
Q: AC/ pump analysis System 2 tons operating steadily to maintain 60 F inside. Temperature outside:…
A:
Q: The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a…
A:
Q: In basic terms explain the ideal and the actual of the following cycle 1. Reheat-Regenerative 2.…
A: The Rankine Cycle is a mechanical cycle that converts the pressure energy of steam into mechanical…
Q: 2. In an ammonia vapor compression refrigeration cycle, 5 kg/min of refrigerant are circulated. The…
A:
Q: As shown below, a refrigeration cycle condenses a flow of ammonia from a saturated vapor at 4 barto…
A: Consider the following diagram for the refrigerator cycle operating within the temperature limits,
Q: Q2/ A vapor-compression refrigeration system operates on the cycle. The refrigerant is…
A: According to the information we know A vapor-compression refrigeration system runs on the cycle. The…
Q: Condenser in a real refrigeration system does
A: The function of the condenser in a refrigeration system is to transfer heat from the refrigerant…
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: What are the basic concepts to chose the number, type and location of feed water heaters in a…
A: A feedwater heater is used in the power plant to preheat the boiler feed water. The Source of the…
Q: Refrigerant 22 is the working fluid in a Carnot refrigeration cycle operating at steady state. The…
A:
Q: An air conditioner mounted in a window supplies cold air at a temperature of 15oC and a pressure of…
A: Consider the diagram shown below for the evaporator and the refrigeration cycle. The mass flow…
Q: Assuming the refrigerant vapour to behave as an ideal gas and with perfect intercooling,the optimum…
A:
Q: It is a normal practice to use a pressure reducing device in vapor compression cycle to reduce the…
A:
Q: A vapor-compression refrigeration system circulates Refrigerant 134a at a rate of 0.15 kg/s. The…
A: Given refrigerant R-134a compressor at inlet isso consider the isentropic enthalpy at compressor…
Q: PART A ONLY ( USE IMAGE BELOW) In a standard ideal refrigeration cycle (Fig. 1), the refrigerant…
A: The heat absorbed by the refrigerant in the evaporator per kg of refrigerant, qL = 127.049 kJ/kg.…
Q: The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a…
A: Here, it is not mentioned that what is asked to determine.so we can calculate here work given to…
Q: 3. A vapor-compression refrigeration system circulates Refrigerant 134a at a rate of 6 kg/min. The…
A: Given data Circulting refrigerant is Refrigerant 134aMass flow rate of refrigerant m=6 kg/minInlet…
Q: g coil in an air-conditioner is 0.7. The by-pass factor, if thres such cooling colls with the same…
A:
Q: An ideal ammonia (R – 717) vapor-compression refrigeration cycle has an evaporator temperature of…
A:
Q: 2. An R22 standard refrigeration system carries a refrigerating load of 82 kW. The suction and…
A: Vapour Compression Refrigeration System(VCRS) It is improved type air refrigeration system in which…
Q: Refrigerant 22 is the working fluid in a Carnot refrigeration cycle operating at steady state. The…
A:
Step by step
Solved in 2 steps
- A(n) ______well draws water from the top of thewater column, circulates it through the heat pump, and then returns the water to the bottom of the water column.After heat is absorbed into a condenser medium in a water-cooled condenser, the heat can be deposited in one of two places. What are they?An important factor (or factors) involving water quality with regard to open-loop heat pump systems is(are) A. water temperature. B. water cleanliness. C. water volume in gpm. D. all of the above.
- Refrigeration Engineering. What is the rate of refrigeration in kW of an ideal heat-operated refrigeration cycle that receives the energizing heat at a rate of 1 kW from a solar collector at a temperature of 70 K, perform refrigeration at 15 K, and rejects heat to atmosphere at a temperature of 35 K?A performance test of an ice plant gave the following data: Capacity: 20 tons of ice/day Refrigerant: Ammonia Condenser pressure: 1391.5 kPa Evaporator pressure: 208.26 kPa Raw water temperature: 32OC Harvest temperature: -7OC Block of ice: 300 lb/block The compressor is twin-cylinder, single acting, D/L = 1.25, 450 rpm, mechanical efficiency is 80%. Additional heat load due to infiltration and conduction is 20%. Determine: a) Number of cans needed b) Product cooling load c) Refrigerating capacity in tons of refrigeration d) Amount of refrigerant flow e) Size of motor to drive the compressor f) Bore diameter and length of stroke01 A certain heat engine rejects -14.2 kJ of heat from the system to the environment at T=300 K each time the thermodynamic cycle is complete (that is, QL= -14.2 kJ, TL = 300K). At the same time, Wnet = +56.8 kJ of work is output from the cycle. Determine the minimum temp, TH at which heat QH must be supplied to the heat engine.
- Only solve last 2 parts ok Problem 2 – Heat Pump Thermodynamic Analysis Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 35 L/min and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 3°C. Neglecting changes in kinetic and potential energy and any stray heat transfer, please answer the following.a. Create a schematic of the cycle, use the same numbers used in your textbook for the inlet and exit states of each device, and include the energy exchanges between the cycle devices and the surroundings.b. Sketch the cycle processes on a T-s diagram.c. Determine the isentropic efficiency of the compressor.d. Compute the rate of heat supplied to the heated room.e. Determine the COP of the heat pump.Differentiate Refrigerator from Heat pumps in terms of: (a) Transfer of Heat, (b) Location of the evaporator, (c) Location of the condenser, and (d) Working of evaporator and condenser.An 500-HP engine with a thermal efficiency of 30% is using a remote radiator which absorbs 20% of the heat supplied to the engine. Cooling system with cooling tower is used with a cooling range of 5°C. The temperature rise after passing the remote radiator is 10°C. Air enters the cooling tower at 30°C dry-bulb; 20°C wet-bulb temperatures and leaves the tower at 38°C & 65%RH. Make a schematic diagram of the system, the process in the provided psychrometric chart and calculate the following: (a.) The amount of cooling water for the engine, kg/min; (b.) The water flow rate in the cooling tower in liters per hour; and (c.) If the heat absorbed by air is 5% of heat absorbed by the cooling tower water, what is the air flow needed in cu.m/hour.
- In the following setup, heat engineoutput is utilized to run a refrigeration cycle.(a) Calculate QL1, (b) Is the heat enginereversible, irreversible or impossible? (Brieflyexplain), (c) Calculate QH2, and (d) Is therefrigeration cycle reversible, irreversible orimpossible? (Briefly explain). Clearly explaineach step!Q2/ A vapor-compression refrigeration system operates on the cycle. The refrigerant is tetrafluoroethane. For Evaporation T = 0°C; condensation T = 26°C; n(compressor) = 0.79; refrigeration rate = 600 kJ-s—1., determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power requirement, the coefficient of performance of the cycleAn ammonia refrigerating plant following the theoretical single stage cycle operates with a condensing temperature of 0 F. The system produces 15 tons of refrigeration. Determine a) the coefficient of performance, b) refrigerating efficiency, c) horsepower per ton of refrigeration, d) rate of refrigerant flow in lb per min, e) theoretical horsepower input to compressor, and f) theoretical piston displacement of compressor in cu ft per min.