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 14RQ
Describe the difference between an azeotropic refrigerant blend and a near-azeotropic or zeotropic refrigerant blend.
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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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- Are federal excise taxes on reclaimed refrigerants the same as those for new refrigerants?arrow_forwardWhat is the name of the conference that was held in Canada in 1987 to attempt to solve the problem of refrigerants released into the atmosphere?arrow_forward3) What are some criteria that need to be considered in the selection of a refrigerant? Please choose one type of refrigerant in air conditioning system market and elaboratearrow_forward
- What are higher-efficiency refrigerant blends that can be used as long-term replacements for R-22 in residential and light-commercial air-conditioning applications?arrow_forward2.) Explain the term one ton of refrigeration.arrow_forwardI. ESSAY/ ENUMERATION 1. GIVE ATLEAST 5 ADVANTAGES AND 5 DISADVANTAGES OF INORGANIC REFRIGERANTS. 2. HOW DOES A REFRIGERANT WORKS IN A REFRIGERATION SYSTEM? 3. DIFFERENTIATE POSITIVE AZEOTTROPES AND NEGATIVE AZEOTROPES IN TERMS OF THEIR APPLICATION IN REFRIGERATION SYSTEMS. 4. THE FOUR MAIN COMPONENTS OF A REFRIGERATION SYSTEM ARE COMPRESSOR, CONDENSER, EVAPORATOR AND AN EXPANSION VALVE. EXPLAIN BRIFLY THE FUNCTION OF EACH COMPONENT AND THE FLOW OF THE CYCLE.arrow_forward
- Generally speaking there are three basic categories of attributes we desire of our refrigerants Performance (efficiency, compatibility, cost) Safety Minimal environmental impact (ODP, GWP and TEWI) Comment on these three basic categories of attributes of refrigerants.arrow_forwardVAPOR COMPRESSION REFRIGERATION SYSTEM ANALYSIS 3 Warm environment Он Condenser Expansion valve Evaporator QL Cold refrigerated space in Compressor 1 FIGURE 1: VAPOR COMPRESSION REFRIGERATION CYCLE The chiller system operates based on the vapour compression refrigeration cycle (figure 1) with a single stage compression. The isentropic efficiency of the compressor is assumed at 85%. The refrigerant exit evaporator and condenser can be assumed as saturated.arrow_forwardDefine absolute humidity and relative humidity. When an air conditioner is operated insummer, lots of water needs to be drained out from it. Briefly explain this situation inrelation to psychrometry.arrow_forward
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