Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 2, Problem 34RQ
What is the Btu/hour output of an electric heater rated at 15 kilowatts?
- a. 51.15 Btu/hour
- b. 51,150 Btu/hour
- c. 5115 Btu/hour
- d. none of the above
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Explain the definition of power (Watt) and energy (Joule) in electricity.
9. A contained room has an air-conditioning unit that is operating at 1 horsepower. If a change in internal energy of the system is found to be 1000 J, how much heat is associated with the process?
Discuss Transferring heat to a wire will not generate electricity.
Chapter 2 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 2 - All physical objects are composed of __________....Ch. 2 - What is an atom?Ch. 2 - Which of the following is a part of the atom? a....Ch. 2 - What is static electricity?Ch. 2 - Name three ways electricity can be produced.Ch. 2 - What part do protons and electrons play in the...Ch. 2 - Which of the following is the simplest atom that...Ch. 2 - What are the four most important characteristics...Ch. 2 - What is electromotive force?Ch. 2 - Electromotive force is commonly measured in _____....
Ch. 2 - What is current?Ch. 2 - How is current measured? a. amperes b. ohms c....Ch. 2 - What is resistance?Ch. 2 - How is resistance commonly measured? a. amperes b....Ch. 2 - What is electrical power?Ch. 2 - How is electrical power commonly measured? a....Ch. 2 - Where do electrons exist in an atom, and what is...Ch. 2 - True or False: All atoms tend to lose electrons.Ch. 2 - State the law of electric charges.Ch. 2 - What is a proton? Where does it normally exist in...Ch. 2 - Describe briefly the method a dry cell battery...Ch. 2 - What is a conductor?Ch. 2 - Which of the following is the best conductor? a....Ch. 2 - What is an insulator?Ch. 2 - Which of the following is the best insulator? a....Ch. 2 - Why do metals make the best conductors?Ch. 2 - How do electric utility companies charge customers...Ch. 2 - What is the meaning of SEER when used in...Ch. 2 - State Ohms law.Ch. 2 - True or False: Ohms law applies to all types of...Ch. 2 - What is the ampere draw of a 5000-watt electric...Ch. 2 - What is the resistance of the heating element of...Ch. 2 - What is the voltage of a small electric heater if...Ch. 2 - What is the Btu/hour output of an electric heater...Ch. 2 - What is the kilowatt output of an electric heater...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- One ton of refrigeration is A. 1200 Btu. B. 12,000 Btu/h. C. 120,000 Btu. D. 120,000 Btu/h.arrow_forwardWhat unit of energy does the power company charge the consumer for?arrow_forwardA domestic refrigerator sits in a kitchen, switched on, with the refrigerator door wide open. The kitchen itself is well insulated and it can be assumed no heat can escape or enter the kitchen from the outside. Which of the following is the most accurate statement. а. The temperature in the kitchen will stay the same. O b. The temperature in the kitchen could go up or down depending on the mechanical efficiency of the compressor. O c. The temperature in the kitchen will go down very slightly. d. The temperature in the kitchen could go up or down, depending on the Coefficient of Performance (COP) of the refrigerator. е. The temperature in the kitchen will go up very slightly.arrow_forward
- A domestic refrigerator sits in a kitchen, switched on, with the refrigerator door wide open. The kitchen itself is well insulated and it can be assumed no heat can escape or enter the kitchen from the outside. Which of the following is the most accurate statement. a. The temperature in the kitchen will go down very slightly. O b. The temperature in the kitchen could go up or down, depending on the Coefficient of Performance (COP) of the refrigerator. O c. The temperature in the kitchen could go up or down depending on the mechanical efficiency of the compressor. O d. The temperature in the kitchen will stay the same. O e. The temperature in the kitchen will go up very slightly.arrow_forwardTension at the tight side and slack side of the belt are 5 kN and 3 kN. What would be the requried velocity of belt to transmitted power of 40kW. O a. 20 cm/s O b. 20 mm/s O c. 20 m/s O d. 20 nm/sarrow_forwardA newly installed refrigeration system produces 250 Btu/lb of cooling. Calculate the mass of refrigerant shall be used in the refrigeration system to have a rating of one ton of refrigeration. A. 1152 lb/day B. 160 lb/hr B. 1780 lb/day D. 380 lb/hrarrow_forward
- Identify the correct statement from the following. O a. The portion of energy that cannot be converted into work by even reversible heat engine is called is called as available energy O b. The portion of energy that cannot be converted into work by even reversible heat engine is called is called as unavailable energy O C. The portion of energy that cannot be converted into work by even reversible heat engine is called is irreversibility. O d. The portion of energy that cannot be converted into work by even reversiblle heat engine is called is called as useful energyarrow_forwardThe phrase "energy generation" is equivalent to "heat generation." True or False True Falsearrow_forwardDiscuss how electricity is related to the Gross Nation Product of the Country.arrow_forward
- Which application of geothermal energy requires the highest temperature? Please choice one below; Process heating Greenhouse Space heating Electricity generation Space coolingarrow_forwardWhich of the following is not a true statement about heat transfer? a. Whenever the temperature of something changes, a transfer of heat has occurred. b. Conduction is the transfer of heat by infrared rays. c. Light bulbs are examples of heat transfer by radiation. d. Convection occurs when a hot object moves to an area with less heat.arrow_forwardWi W2 W3 The shown schema for measurement of active power in three phase systems is: Select one: 1. Three-phase four-wire connection 2. Three-phase three-wire connection with two wattmeters 3. Three-phase three-wire connection with artificial star pointarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
The Refrigeration Cycle Explained - The Four Major Components; Author: HVAC Know It All;https://www.youtube.com/watch?v=zfciSvOZDUY;License: Standard YouTube License, CC-BY