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.

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. $35^{o}Fto40^{o}F$

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 ${35}^{o}F$ and may vary up to ${40}^{o}F$.

Important terms used in domestic refrigerators:

1. 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.

2. Domestic freezers are considered as a separate compartment in a refrigerator or a separate appliance. Domestic freezers are of two types:

(i). Upright type freezers

(ii). Chests type freezers.

3. Domestic refrigerator compressors are reciprocating or rotary type and welded hermetically sealed compressors are normally used in household refrigerators.
4. Condensers in these refrigerators are all air cooled.
5. The fresh food compartment of a domestic refrigerator represents about $\frac{1}{3}$ of the total evaporator load and the operating efficiency in this mode is nearly doubled.