Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 28RQ
Briefly describe the types of piercing valves used in the industry, and list some advantages and disadvantages of both.
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Chapter 9 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 9 - What is the difference between the oxygen we...Ch. 9 - Describe the difference between good and bad...Ch. 9 - Explain the process of ozone depletion resulting...Ch. 9 - Which refrigerants have a 0 ODP? A. HFCs B. HCFCs...Ch. 9 - An increase in the natural greenhouse effect that...Ch. 9 - True or False: Only CFCs and HCFCs contribute...Ch. 9 - Explain what a global warming potential (GWP) is.Ch. 9 - Prob. 8RQCh. 9 - Describe the difference a direct and an indirect...Ch. 9 - What measurement or index takes into...
Ch. 9 - Describe the differences between CFCs, HCFCs,...Ch. 9 - CFCs are more harmful to the stratospheric ozone...Ch. 9 - Prob. 13RQCh. 9 - Describe the difference between an azeotropic...Ch. 9 - Why are there more safety precautions for R-410A...Ch. 9 - The three most popular synthetic oils in the...Ch. 9 - What is the name of the conference that was held...Ch. 9 - What agency ofthe federal government is charged...Ch. 9 - Explain the differences between active and passive...Ch. 9 - Are federal excise taxes on reclaimed refrigerants...Ch. 9 - Prob. 21RQCh. 9 - Prob. 22RQCh. 9 - To reclaim refrigerant meas to__________.Ch. 9 - Explain what is meant by a nonpressurized recovery...Ch. 9 - Prob. 25RQCh. 9 - Prob. 26RQCh. 9 - The standard that a refrigerant must meet after it...Ch. 9 - Briefly describe the types of piercing valves used...Ch. 9 - Briefly describe an oil-less refrigerant recovery...
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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
- Explain the difference between the inherent and installed valve characteristics.arrow_forwardValves are favored because of their lower cost and lighter weight poppet O plug O ball O butterfly Oarrow_forwardIllustrate and discuss the two ways of throttling using one-way flow control valvesarrow_forward
- What's proportional control valve? Please list the symbol for this type valves, and explain the reasons for that "not only control the flow direction of fluid, but also change the amount of flow"? Please figure out the attributes of proportional control valve.arrow_forwarda. Give the family of the butterfly valves. b. Why there is a pressure drop in butterfly valves irrespective of its valve position? c. Why butterfly valve is a most preferred valve in the oil industry?arrow_forwardList the functions of a pneumatic valve.arrow_forward
- Why is it preferable to use pneumatic valves in oil sites?arrow_forwardExplain the following terms as they apply to electronic expansion valves:step motoroffseterroralgorithmmicroprocessorfeedback looparrow_forwardDirect acting relief valves are seldom used in industrial hydraulic circuits which require control of high pressures and large volumes. The direct acting relief opens prematurely at a pressure, which is referred to as: Venting Normally non-passing Normally passing Cracking Pressure which is the answer ?arrow_forward
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