Discussion
Consider the following statements about cold store loads:
1. Respiration heat runs continuously once the produce is at temperature.
2. Infiltration arises from door openings and leaks.
3. Compressor motor heat is part of the room's load.
Which of the statements given above is or are correct?
Answer: D
Correct answer: 1 and 2 only
Statement 1 is correct: respiration heat continues for as long as the produce is alive and in store, so it is a continuous load rather than a transient. Statement 2 is correct: infiltration is warm moist air entering through door openings and leaks.
Statement 3 is false. Compressor motor heat is rejected at the condenser, outside the insulated envelope, so it never enters the cooled space and is not part of the room's load. Only a compressor or motor sited inside the room would contribute.
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