Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
8th Edition
ISBN: 9780357261385
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 45, Problem 1RQ
The typical temperature inside the fresh-food compartment in a domestic refrigerator is
A. 25°F to 30°F.
B. 30°F to 35°F.
C. 35°F to 40°F.
D. 40°F to 45°F.
Expert Solution & Answer
To determine
The correct option for the given statement.
Answer to Problem 1RQ
The correct option for the given statement is option(C) i.e.
Explanation of Solution
At normal room temperature, the typical temperature inside the fresh food compartment of a domestic refrigerator is similar to the temperature of the air that is returned to the evaporator coil and typically it may be
Important terms used in domestic refrigerators:
- The single compressor in a household refrigerator operates under conditions at lowest box temperature, which is typically -10 to +5 Degrees F.
The two types of evaporators are used in household refrigerators are natural draft or force draft.
- Domestic freezers are considered as a separate compartment in a refrigerator or a separate appliance. Domestic freezers are of two types:
- Domestic refrigerator compressors are reciprocating or rotary type and welded hermetically sealed compressors are normally used in household refrigerators.
- Condensers in these refrigerators are all air cooled.
- The fresh food compartment of a domestic refrigerator represents about
(i). Upright type freezers
(ii). Chests type freezers.
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B:
Find the numerical solution for the 2D equation below and calculate the temperature values for
each grid point shown in Fig. 2 (show all steps).
(Do only one trail using following initial values and show the final matrix)
[T1]
T₂
T3
[T] 1
=
[0]
0
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d
dx
dx)
(ka)+4(ka)
=
dy
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Fig. (2)
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العنوان
use only
Two rods fins) having same dimensions, one made orass (k = 85 Wm
K) and the mer of copper (k = 375 W/m K), having of their ends inserted
into a furna. At a section 10.5 cm a way from furnace, the temperature of
brass rod 120 Find the distance at which the ame temperature would be
reached in the per rod ? both ends are ex osed to the same environment.
ns
2.05
۲/۱
ostrar
Chapter 45 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
Ch. 45 - The typical temperature inside the fresh-food...Ch. 45 - The operating condition for the single compressor...Ch. 45 - When the air temperature in a domestic freezer is...Ch. 45 - Typical head pressures should correspond to a...Ch. 45 - Using the temperature/pressure chart in Unit 3,...Ch. 45 - Using the pressure/temperature chart in Unit 3,...Ch. 45 - If a forced-draft evaporator fan motor is wired in...Ch. 45 - Frost accumulates on the evaporators of...Ch. 45 - The defrost cycle in a domestic refrigerator may...Ch. 45 - Prob. 10RQ
Ch. 45 - What are the two types of evaporators found in...Ch. 45 - Refrigerators currently being manufactured in the...Ch. 45 - Condensers in these refrigerators are...Ch. 45 - Home freezers are air-cooled and may have...Ch. 45 - Induced-draft condensers are typically used with...Ch. 45 - The capillary tube metering device is usually...Ch. 45 - Prob. 17RQCh. 45 - If the compressor has liquid refrigerant returning...Ch. 45 - Some freezers may have ______heaters to prevent...Ch. 45 - Welded ______sealed compressors are normally used...Ch. 45 - Special heaters called ______heaters are often...Ch. 45 - Prob. 22RQCh. 45 - Prob. 23RQCh. 45 - The adjustment device used for low atmospheric...Ch. 45 - Prob. 25RQ
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