Which cooling method is naturally driven by shading and outdoor air flow?

Which cooling method is naturally driven by shading and outdoor air flow?

• A. Passive cooling
• B. Evaporative cooling
• C. Mechanical cooling
• D. Absorption cooling

Answer: (A)

Passive cooling relies on design and the environment rather than mechanical devices. Shading blocks direct sunlight, reducing heat gain inside the space. At the same time, outdoor air flow through openings enables natural ventilation, letting cooler outside air in and heat-laden air out. Together, these strategies lower interior temperatures without using energy-intensive equipment. Evaporative cooling depends on water evaporation and humidity, mechanical cooling uses powered equipment to compress refrigerants, and absorption cooling relies on heat to drive a chemical cycle. None of these rely primarily on shading and natural air flow in the same way, so shading plus outdoor air flow best fits the description.

Passive cooling relies on design and the environment rather than mechanical devices. Shading blocks direct sunlight, reducing heat gain inside the space. At the same time, outdoor air flow through openings enables natural ventilation, letting cooler outside air in and heat-laden air out. Together, these strategies lower interior temperatures without using energy-intensive equipment. Evaporative cooling depends on water evaporation and humidity, mechanical cooling uses powered equipment to compress refrigerants, and absorption cooling relies on heat to drive a chemical cycle. None of these rely primarily on shading and natural air flow in the same way, so shading plus outdoor air flow best fits the description.