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 40, Problem 15RQ
Many ratings for components of an air-conditioning system are not completely accurate due to many different operating conditions and are called ratings.
A. nominal
B. SEER
C. high-efficiency
D. standard-efficiency
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Students have asked these similar questions
Different types of air conditioning system.
a) Explain four factors in determining the comfort level for an air conditioning room.Suggest the typical value for those factors.
1. (a) List out the classification of air-conditioning system.
(b) With the aid of following sketch diagram(s) Fig.1, explain the working principle and
details of the loops involved in the centralized HVAC building system. .
Fresh Air
Necessary
considering
IAQ
Water 12°C
137°C
Water
Return Air
24°C
Pump
Air-handling Supply
Unit
Air
Chiller
Fan
7°C
Cooling Tower
14°C
Produce
chilled
water (7°C)
32°C
Supply
Air
Pump
Heat Gain
or
24°C
Return
Air Heat Gain
Room
Chiller
Fan
Air cool chiller
Heat rejected to the
environment
Fig.1 Systematic diagram of an air-conditioning system
Chapter 40 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 40 - The standard design conditions for...Ch. 40 - The typical temperature relationship between a...Ch. 40 - The evaporator will normally operate at a(n)...Ch. 40 - A typical temperature relationship between a...Ch. 40 - How is condenser high efficiency obtained?Ch. 40 - High-efficiency air-conditioning systems may use...Ch. 40 - What does the head pressure do If the suction...Ch. 40 - What will cause the suction pressure to rise?Ch. 40 - The evaporator design temperature may in some...Ch. 40 - The seasonal energy efficiency ratio (SEER)...
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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
- Multiple-zone systems often use a(n) __________or a(n)___________to alleviate the problem of excess air when only some zones are calling for conditioning.arrow_forward1.During a refrigerant system performance test the following results are recorded: outside ambient temperature of 908F, high-side gauge reading of 145 psi, and low pressure gauge reading of 14 psi. What is indicated by these results? A. Faulty refrigerant compressor B. Normal refrigerant system operation C. Low refrigerant levels D. A restriction on the high side of the refrigerant system 2. A customer complains of poor air-conditioning cooling performance. During a system performance test, the low-side gauge reading is 50 psig; the high-side gauge reading is 310 psig; and the ambient air temperature is 818F (27.228C). What is the least likely cause of the above results? A. Restricted airflow through condenser B. Refrigerant overcharge C. Refrigerant undercharge D. Overcharge of refrigerant oil I NEED BOTH QUESTION TYPED ANSWER PLEASE DETAIL ANSWERarrow_forwardWhich process would best represent the opposite ofexhausting air from a system?A. CoolingB. VentilatingC. HeatingD. Filteringarrow_forward
- What does a 1 ton refrigerant represent: a. The weight of the air conditione r b. The amount heat required to cool 1 ton of air in 1 hour c. The amount of heat required to melt 1 ton of ice at 0 degree in 24 hours d. The weight of the refrigerant used.arrow_forwardQuestion1. If an air conditioning system has three independent zones, how many space thermostats will the system have? Question 2. A technician is traversing a duct and obtains the following 8 velocity: 500fpm, 400fpm, 375fpm,625fpm,275fpm,360fpm,450fpm,and 575fpm. What is the velocity value that can be used for the system calculations?arrow_forwardWhich of the following components is NOT a type of ventilation system? Select one: a. Airconditioning Units b. Venting Skylight c. Boilers d. Exhaust Fansarrow_forward
- 3) 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_forward1. Describe the operation of a compressor.arrow_forwardc) Explain the layout and the basic operation of a centralized air conditioning system(or chiller system).arrow_forward
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