Subtopic: Cooling load components in agricultural cold storage
Question Statement:
Which of the following heat sources contribute directly to the total refrigeration cooling load of an apple cold storage warehouse?
Options:
(A) Transmission heat gain through walls, ceiling, and floor
(B) Respiration heat generated metabolically by living apple fruits
(C) Air infiltration load due to door openings during loading/unloading
(D) Sensible heat released by warehouse lighting, forklift motors, and operating personnel
Answer Key:
A, B, C, D
Step-by-Step Solution & Explanation
All four components comprise the standard ASHRAE cold storage cooling load:
1. Transmission load (building envelope conduction)
2. Product respiration load (vital metabolic heat)
3. Infiltration load (ambient air ingress)
4. Internal equipment/occupancy loads (lights, motors, people).
All options A, B, C, D are true.