Which type of cooling process does not use mechanical methods?

The type of cooling process that does not use mechanical methods is passive cooling. This method relies on natural processes and environmental factors to manage indoor temperatures. Passive cooling techniques may include architectural design choices such as strategic placement of windows for cross-ventilation, the use of thermal mass materials that absorb and release heat, and shading from trees or overhangs to reduce heat gain.

In contrast, vapor-compression cooling relies on mechanical components like compressors and refrigerants to achieve cooling. Similarly, thermal mass cooling utilizes physical structures and materials, but often in conjunction with mechanical ventilation or cooling systems to be effective. Chemical cooling methods involve reactions that absorb heat, but they also require mechanical systems to manage those reactions effectively. Thus, passive cooling stands out as the only option that utilizes natural methods without any mechanical intervention.