consider the following: a) Do you think a heat pump system will be more cost-effective in New York or in Miami? Explain. b) How does the COP of a water-source heat pump system compare to that of an air- source system? c) Temperature variation

consider the following: a) Do you think a heat pump system will be more cost-effective in New York or in Miami? Explain. b) How does the COP of a water-source heat pump system compare to that of an air- source system? c) Temperature variation

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

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 16RQ: Explain why a waterless, earth-coupled, closed-loop geo-thermal heat pump system is more efficient...

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Similar questions

Explain why a waterless, earth-coupled, closed-loop geo-thermal heat pump system is more efficient than a conventional closed-loop geothermal heat pump system.
If 14 gpm of water is flowing through an open-loop heat pump with a temperature difference of 7F, how much heat in Btu/h is being absorbed or rejected in the heat pump? Show all work and units.
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.
c) Assess the limiting factors that impact on the economics of heat pumps.d) Conduct a cost-benefit analysis on the installation of a ground source heat pump on asmallholding, and make valid recommendations for improvements.
A geothermal heat pump with a coefficient of performance of 1.3 supplies a building with 48000 BTU/hr of heat. Assuming a $0.20/kWh electricity rate. Provide responses to the following questions about this system: a. How much would it cost per month to supply heat at a rate of 48000 BTU/hr using a basic electrical resistance heater? b. In that month, how much heat is extracted from the earth by the heat pump, in kWh? c. What is the monthly savings associated with using this heat pump vs a basic electrical resistive heater?
1. A geothermal heat pump with a COP of 1.3 provides 48000 BTU/hr of heat to a building. Assuming an electrical power rate of $0.20/kWh. answer the following questions for this system: a. What would be the monthly cost to provide heat at a rate of 48000 BTU/hr if the heat was delivered by a simple electrical resistance heater? b. How much heat is drawn from the ground by the heat pump in that month, in kWh? c. What is the savings per month enjoyed by operating this heat pump for a month vs. a simple electrical resistance heater?
Pls. Answer thank you! An air-conditioning system is used to maintain a house at 75°F when the temperature outside is 95°F. The house is gaining the heat through the walls and windows at a rate of 1250 Btu/min, and the heat generation rate within the house from people, lights, and appliances amounts to 350 Btu/min. Determine the minimum power input required for this air-conditioning system.
Refrigerationa.) Explain why you can’t cool down your kitchen by leaving your refrigerator or freezer door open with your refrigerator plugged in for an extended period of time.b.) The condenser of a home refrigerator is commonly underneath the appliance, thus the condensing refrigerant exchanges heat with household air, which averages 70oF. It is proposed toreconfigure a refrigerator so that the condenser is in the garage, where the average yearly temperature is about 50oF. Assume a freezer temperature of 0oF, a minimum temperature difference of 10K for heat transfer, and an actual coefficient of performance of 60% that of a Carnot cycle. Calculate the Coefficient of Performance for both configurations and discuss the pros and cons of this proposal.c.) Which is the most effective way to increase the coefficient of performance of a Carnot refrigerator: to increase TC with TH held constant or to decrease TH with TC held constant? Justify mathematically. For a real refrigerator, do…
1.)A heat engine is operating on a Carnot cycle and has a thermal efficiency of 58.65 percent. The waste heat from this engine is rejected to a nearby lake at 63.41 F at a rate of 823.19 Btu/min. Determine the temperature (R) of the source. 2.)A heat pump operates on a Carnot heat pump cycle with a COP of 8.87. It keeps a space at 27.97 C by consuming 2.52 kW of power. Determine the heating load (kW) provided by the heat pump.
(a) A food compartment is to be maintained at 21°C by a refrigeration system. The total coolingload of the food compartment is estimated to be 330 kJ/h and the heat rejection by thecondenser is 480 kJ/h. The outdoor air temperature is 35°C. i) draw the schematic diagram of the refrigeration systemii) determine the power input required to operate the refrigeration system in kW. (b) A heat pump operates on a Reversed Carnot cycle with a COP of 7. It keeps the temperatureof a space at 23°C by consuming 2.5 kW of power. i) draw the schematic diagram of the heat pumpii) find the temperature of the reservoir from which the heat is absorbed in °C.iii) find the heating load provided by the heat pump in kW.
A heat pump with COP of 2.0 is used to heat water to 90 oC for cleaning purpose. This heat pump absorb heat from surrounding at 30 oC and received the entire power, ̇ from a Carnot heat engine operating between 200 oC and 25 oC. The Carnot heat engine received 6.3 kW of heat from the high temperature source. i) Draw the schematic diagram of the above system. ii) Determine the power received by the heat pump, ̇ from Carnot heat engine, kW. iii) Calculate the rate of heat supplied to the water by the heat pump, kW. iv) Determine the COP of the heat pump if it operates on a reversed Carnot cycle.
Describe the Part of the heat received by a heat engine is converted to work, while the rest is rejected to a sink.