I.1. During a cyclic process, a heat engine absorbs 500 J of heat from a hot reservoir, does work and ejects an amountof heat 300 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine?

Name: I.1. During a cyclic process, a heat engine absorbs 500 J of heat fro
Uploaded: 2022-11-30T03:40:23.000Z
Channel: Bartleby
Description: I.1. During a cyclic process, a heat engine absorbs 500 J of heat from a hot reservoir, does work and ejects an amountof heat 300 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine?

Given:Heat engineheat absorbs, Q1=500 Jheat to sink, Q2=300 J

Engineering

Mechanical Engineering

1. During a cyclic process, a heat engine absorbs 500 J of heat from a hot reservoir, does work and ejects an amoun of heat 300 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine?

1. During a cyclic process, a heat engine absorbs 500 J of heat from a hot reservoir, does work and ejects an amoun of heat 300 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine?

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 13RQ: If 14 gpm of water is flowing through an open-loop heat pump with a temperature difference of 7F,...

See similar textbooks

Similar questions

A heat engine has a solar collector receiving 600 Btu/h per square foot, insidewhich a transfer medium is heated to 800 R. The collected energy powers aheat engine that rejects heat at 100 F. If the heat engine should deliver 8500Btu/h, what is the minimum size (area) of the solar collector?
ii. A heat engine produces work equivalent to 90 kW with an efficiency of 30 percent. The heat transfer rate to and from the working fluid.
In an area, heat is supplied at a heat engine with a temperature of 700°C, while waste heat is disposed at 60°C. Then, a generator is connected together with a heat pump to the heat engine to check the amount of power being produced. If the heat pump will warm the area at 25°C, while its outside temperature is at 10°C. The area now loses 80,000 kJ/hr of heat. And, 20% of the heat engine’s power output will go to the heat pump. How much needs to be burned by the heat engine to maintain the temperature in the area? Assuming a carnot heat engine and heat pump.
A large heat pump should upgrade 4 MW of heat at 65 C to be delivered as heat at 145 C. What is the minimum amount of work input that will drive this?
A Carnot heat engine is used to drive a heat pump to maintain the heat of a small building. The HE receives heat from at 1600 °F reservoir at a rate of 1800 Btu/min and rejects heat into ambient air at 32°F. From the same ambient air at 32 °F, the heat pump removes heat to maintain the temperature of the building at 70 °F. What is the maximum rate of heat transferred to the house (in Btu/min)? What is the rate of heat removed from ambient air by the heat pump? Final answers must be in Btu/min.
A solar energy based heat engine which receives 80 kJ of heat at 100 deg C and rejects 70 kJ of heat to the ambient at 30 deg C is to be designed. The thermal efficiency of the heat engine is
If a house needs a minimum heat transfer rate of 75 kJ/h (i.e., 75 kJ of heat needs to be transferred into the house during one hour) to maintain a pleasant indoor temperature. If one wants to use a heat pump with a COP of 5.55 to fulfill this heat transfer rate, what is the corresponding electricity (in kWh) consumption to run such a heat pump for one hour?
Assume you purchase a new heat pump rated at 3 Refrigeration Tons [RT] and you estimate to use the heat pump for 13 hours per day [h/d] during the month of April (30 days), at a cost of $0.11 per kilowatt-hour [$/(kW h)]. What is the total cost, in dollars [$], to operate the heat pump in the month of April?
An inventor draws 25000 kJ/h of heat from a heat well at -30°C, which requires 1.2 kW of power. He claims to have developed a refrigeration cycle that dumps heat into the heat source at 20°C. environment There is no other energy transfer with Evaluate this claim.
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.
QI Two reservoirs 727 °C and 23 °C are used to operate heat engine. 50% from the power output of heat engine is employed to drive a reversed Carnot refrigerator that absorbs heat from the cooled space at -2 °C at a rate of 6.7 Kw and rejects heat to the surrounding at 200 °C. Calculate the rate of heat supplied to the heat engine.
A Carnot Engine receives 250 KJ/s of heat form a heat-source reservoir at 525ºC and rejects heat to a heat-sink reservoir at 50ºC. What is the power developed and heat rejected?