Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 47, Problem 17RQ
The purge unit in a low-pressure chiller removes
A. overcharge of refrigerant.
B. excess oil.
C.condensable refrigerant.
D. noncondensables.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which of the following is true regarding the refrigerantpiping on a rooftop package unit?A. The discharge and liquid lines must be field installed.B. The suction and liquid lines must be field installed.C. The discharge and suction lines must be field installed.D. No refrigerant lines are field installed.
If a hot water reheat coil is installed with a two way modulating valve.
A. The VAV box can only be used for a heating-only application .
B. A variable volume circulating pump must be used.
C. A constant volume circulating pump can be used.
D. The VAV box can only be used for a cooling-only application
Which part in the mechanical heat pump is
used to increase the refrigerant pressure?
Select one:
a. Condenser
b. Evaporator
c. Expansion valve
d. Compressor
Chapter 47 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 47 - When a chiller is used, the secondary refrigerant...Ch. 47 - What are the two basic categories of chillers?Ch. 47 - Three types of compressors are used for chillers:...Ch. 47 - Blocked suction cylinder unloading is accomplished...Ch. 47 - True or False: The capacity control for a screw...Ch. 47 - Which of the following methods are used to...Ch. 47 - Describe a direct-expansion versus a flooded...Ch. 47 - What is the purpose of multiple passes in a...Ch. 47 - The approach temperature for the evaporator is A....Ch. 47 - What type of water-cooled condenser is used in...
Ch. 47 - The compressor used in low-pressure chillers is...Ch. 47 - List the types of metering devices used with...Ch. 47 - The subcooling temperature in a condenser can be...Ch. 47 - What causes a surge in a centrifugal chiller?Ch. 47 - Why is it important to keep an operating log on a...Ch. 47 - Which of the following metering devices is used in...Ch. 47 - The purge unit in a low-pressure chiller removes...Ch. 47 - In an absorption chiller, _______is used to create...Ch. 47 - The types of energy used to power a typical...Ch. 47 - True or False: Some absorption machines are...Ch. 47 - What is the common refrigerant used in absorption...Ch. 47 - How is capacity control accomplished with a...Ch. 47 - True or False: Single-phase induction,...Ch. 47 - Describe how a wye-delta is started and runs.Ch. 47 - Why is it important to have phase protection for...
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
- What causes a surge in a centrifugal chiller?arrow_forwardQuality means _________ when referring to a refrigerant.arrow_forwardThe approach temperature for the evaporator isA. the difference between the suction and head pressuresconverted to temperature.B. the difference between the refrigerant boiling temperatureand the suction-line temperature.C. the difference between the refrigerant boiling temperatureand the inlet water temperature.D. the difference between the refrigerant boiling temperatureand the leaving-water temperature.arrow_forward
- What kind of circuit balancing valve is used in the hot and chilled water piping? a. balancing globe valve b. shut-off balancing valve c. pressure balancing valve d. pressure by-pass valvearrow_forward17- Where does liquid ammonia change into its low pressure vapors? a. Absorbor b. Generator c. Condenser d. Evaporator Clear my choicearrow_forward9 Which of the following causes cooling in the room? a. Generator b. Absorbor c. Evaporator d. Condenserarrow_forward
- Briefly describe an oil-less refrigerant recovery unit.arrow_forwardWhich list states the correct order of components for the absorption refrigeration? A) Evaporator, then absorber, then concentrator, then condenser. B) Absorber, then condenser, then evaporator, then concentrator. C) Condenser, then absorber, then concentrator, then evaporator.arrow_forwardWhich one of the device is suitable for controlling the flow of liquid refrigerant ? Select one: a. Feed pump b. Heat exchanger c. Expansion valve d. Injection valvearrow_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