Answered: Consider natural gas furnace, electric…

Consider natural gas furnace, electric resistance and heat pump systems. For a specified heating load, which one of these three systems will do the job with least irreversibility? Explain.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 26P: The temperature of the cold reservoir of the engine is 300 K. It has an efficiency of 0.30 and...

See similar textbooks

Related questions

Q: An engine with an output of 249.0 W has an efficiency of 25.0 %. It works at 10.00 cycles/s. How…

A: It is given that the output power is 249.0W. It is the work done per second. This implies, 249.0 J…

Q: You observe a grasshopper eating a blade of grass. You know that each blade of grass contains 100…

A: Given that:- Energy contain in one blade of grass=100 units

Q: The temperature of the cold reservoir of the engine is 305 K. It has an efficiency of 0.23 and…

A: The problem can be solved by using the concept of efficiency of a heat engine. The answer for the…

Q: in the figure. The arrows of the curve indicate the direction of the process, and the points of…

A: As we know,Area under P-V curve is…

Q: Compare the cost to make 48 kg of ice using two different refrigerators; one has a COP of 5.00 and…

Q: A heat engine operates in a Carnot cycle between 72.0°C and 345°C. It absorbs 20,400 J of energy per…

Q: In this experiment, the expander is connected to an electrical generator, which is then connected…

A: a. Calculating Mechanical Work and Mechanical Efficiency with a Torque SensorTo calculate the…

Q: A cyclical heat engine has 75 kJ of heat transfer that occurs to the enviornment for every 92 kJ of…

Q: heat engine operates between a hot reservoir at 790°C and a cold reservoir at a temperature of 15…

Q: A heat engine receives heat in the amount of Q,= 525 kJ from a high temperature thermal reservoir…

A: Given Amount of heat received by the heat engine Qh = 525 kJ Net work done by the heat engine Wnet…

Q: 55 g of aluminum at 100° C are placed in thermal contact with 55 g of copper at 0° C. The two metals…

A: Given: The mass of Aluminum, mAl = 55 g Initial temperature of aluminum, TA1= 100 0C Mass of…

Q: Baseboard heaters are basically electric resistance heaters and are frequently used in space…

A: According to the law of thermodynamics, there is no such engines which is 100% ideal.

Q: A gasoline truck engine takes in 10,000 J of heat and delivers 2,000 J of mechanical work per cycle.…

A: From the figure, the engine is a Carnot engine. Let QH denotes the heat received from the higher…

Q: Please use the appropriate format in answering word problem: Problem 03 A heat engine is operated…

A: Given: Heat source temperature: TH=1470°C The cold reservoir temperature: TC=260°C

Q: What if the actual work done (more realistically) is W = 320 J during a single cycle; what is the…

Q: A 100 ohms resistor carrying current of 1 Amp is maintained at a constant temperature of 30°C by a…

Q: If energy is always conserved, never created or destroyed, then why do most of the machines in our…

A: SOlution: To explain If energy is always conserved, never created or destroyed, then why do most of…

Q: What is the maximum efficiency of a heat engine whose operating temperatures are 690 °C and 300…

Q: An engineer designs a heat engine using flat-plate solar collectors. The collectors deliver heat at…

Q: A heat pump has a coefficient of performance of 2.2 in heating mode. If it requires 140 J of work…

Q: An engine uses water at 130 °C and at 30 °C as hot and cold reservoirs, respectively. What is its…

Q: A refrigerator has a coefficient of performance of 3.0. (a) If it requires 200 J of work per cycle,…

A: Given Data The refrigerator’s COP is COP = 3. The work required by the cycle is W = 200 J. a) The…

Q: Consider a system having 'm resources of the same type. The resources are shared by 3 processes A,…

A: Concept: Deadlock is a specific condition that occurs when two or more processes each wait for…

Q: A heat engine operating between -10 degrees Celsius and 40 degrees Celsius achieves 50% of the ideal…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: A heat engine is operating between temperatures 500.0 K and 293.0 K. Currently it takes in 8.500 kJ…

A: Given data: A heat engine is operating between temperatures, T1= 500.0 K and T2= 293.0 K The heat…

Q: A heat engine is found to have an efficiency of 0.33. If it does 190 J of work per cycle, how much…

Q: Consider two actual power plants operating with solar energy. Energy is supplied to one plant from a…

A: The efficiency of a power plant is maximum when the heat is supplied to the possible highest…

Q: If 370 J of work is performed with 45% efficiency, what is the amount of energy that goes into…

Q: A 37 percent efficient engine loses 400 J of heat during each cycle. What work is done, and how much…

A: The given data are listed below with appropriate variables. Here, η denotes the efficiency and QL…

Q: A Carnot heat engine receives 700kJ/s from a heat source and produces 430 kW of power. At what rate…

Q: An engine with an efficiency of 0.34 absorbs 55 J from a heat reservoir in each cycle. If it…

Q: A certain coal-fired power plant has a rated power capacity of P = 960 MW. The output of this plant…

A: "Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: A heat engine working between 230.0°C and 520.0°C, takes in 1.401 x 107 J of heat and delivers 4.100…

Q: A. Consider a heat engine that draws 55 J of heat from a hot reservoir and discards 35 J of heat to…

Q: When 2.1 kg of water at 12.3 °C is mixed with 3.7 kg of water at 39.7 °C in a well-insulated…

A: Given data: Mass of the water, m1=2.1 kg Temperature, T1=12.3C = 12.3 + 273 K∘ Mass of the water,…

Q: The resistance of an exercise bike is often provided by a generator; that is, the energy that you…

A: (a)

Q: A certain refrigerator has a coefficient of performance of 1.8. If this refrigerator absorbs…

A: Given data: A certain refrigerator Coefficient of performance (COP) = 1.8 Heat absorbed (Qin) =…

Q: Calculate the maximum theoretical efficiency of a heat engine that operates with the hot steam…

A: We are given the hot steam temperature. We are also given cool steam temperature. The maximum…

Q: Find the network output of the thermodynamic cycle (1-2-3-4-5-6-1) shown in the figure below.

A: The net work output of the given cycle can be represented as, From the given PV diagram, processes…

Q: A box contains two balls that can be either blue or red. A blue ball has an energy -E1 while a red…

A: We have two energy levels given by E1 and -E1. Using this we can form a single particle partition…

Q: Please describe to me the laws of thermodynamics. There are a certain number of them and therefore…

A: The laws of thermodynamics are Zero th law First law Second law Third law

Q: A heat engine performs 411 J of work in each cycle and has an efficiency of 0.3. For each cycle, how…

Q: An engine absorbs 1.70 kJ from a hot reservoir at 277°C and expels 1.20 kJ to a cold reservoir at…

Q: he energy entering an electric heater by electrical transmission can be converted to internal energy…

Question

Consider natural gas furnace, electric resistance and heat pump systems. For a specified heating load, which one of these three systems will do the job with least irreversibility? Explain.

Please type the answer

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 5 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

How much energy in jouls does a (5.14x10^1) W toaster use in the morning if it is in operation for a total (4.000x10^0) min? Give your answer to 3 sf. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer
A heat engine, receives IMW of heat from a heat source at 600°C and rejects 700 kW of heat to a low temperature sink at 30°C. Show a sketch for the heat engine and determine: a) The thermal efficiency of this engine. b) The maximum thermal efficiency c) The amount of network output.
An engineer designs a heat engine using flat-plate solar collectors. The collectors deliver heat at 74°C and the engine releases heat to the surroundings at 32°C. What is the maximum possible efficiency of this engine? (Round the final answer to four decimal places.) The maximum efficiency of the engine is __%
Answer below questions for a heat pump that puts in 80 J of heat into the hot reservoir per cycle and whose coefficient of performance is 4. Hint What is the amount of work needed per cycle? W=W= JJ What is the amount of heat taken in from the cold reservoir per cycle? QL=QL= J
A certain coal-fired power plant has a rated power capacity of P = 960 MW. The output of this plant is W = 0.39QH, where QH is the energy input as heat from the hot reservoir. a. Write an equation for the efficiency of a heat engine in terms of QH and the heat QC exhausted to a low-temperature reservoir. b. Which would increase the efficiency more, doubling QH or reducing QC by half? c. Calculate the maximum thermal efficiency of the power plant. d. Calculate the absolute value of the exhausted heat (QC) each second in MJ for the power plant.
help.
A certain coal-fired power plant has a rated power capacity of P = 1350 MW. The output of this plant is W = 0.34QH, where QH is the energy input as heat from the hot reservoir. Part (a) Write an equation for the efficiency of a heat engine in terms of QH and the heat QC exhausted to a low temperature reservoir. Part (b) Which would increase the efficiency more, doubling QH or reducing QC by half? Part (c) Calculate the maximum thermal efficiency of the power plant. Part (d) Calculate the absolute value of the exhausted heat (QC) each second in MJ for the power plant. Part (e) If the power plant operates for a full day at its rated capacity, how much energy QH in MJ is needed? Part (f) If, on average, one ton of coal contains Q = 25 GJ of energy, how many tons nH of coal would the plant need to operate for a day at its rated capacity? Part (g) How many tons nC of this coal is exhausted as wasted heat to QC in a single day?
The “Energy Guide” label on a washing machine indicates that the washer will use $85 worth of hot water per year if the water is heated by an electric water heater at an electricity rate of $0.113/kWh. If the water is heated from 12 to 55°C, determine how many liters of hot water an average family uses per week. Disregard the electricity consumed by the washer, and take the efficiency of the electric water heater to be 91 percent.
A heat engine receives heat in the amount of Qh= 525 kJ from a high temperature thermal reservoir and delivers W, net= 360 kJ of work per cycle. Write an expression for the efficiency of the engine. What is this efficiency? n = Write an expression for the amount of energy required to be rejected into the low temperature reservoir. How much energy, in kilojoules, is rejected into the low temperature resevoir?
A heat engine receives heat in the amount of Qh = 775 kJ from a high temperature thermal reservoir and delivers Wnet = 290 kJ of work per cycle. Write an expression for the efficiency of the engine. What is this efficiency? Write an expression for the amount of energy required to be rejected into the low temperature reservoir. How much energy, in kilojoules, is rejected into the low temperature resevoir?
A heat engine operates between a hot reservoir at 790°C and a cold reservoir at a temperature of 15 °C. What is its maximum possible efficiency? Enter your answer with at least two decimal places. a) The maximum possible efficiency of the heat engine is %. b) If the temperature of the cold reservoir was lowered, the maximum efficiency would
A heat pump has a coefficient of performance of 3.1. Hint If it requires 290 J of work per cycle, how much heat per cycle does it put into the hot reservoir? QH=QH= JJ How much heat per cycle is pulled in from the cold reservoir? QL=QL= J