Precision Parts and Clean Rooms:
In built-up of precision metal parts air conditioning helps to (1) remain the temperature identical so that the metal shall not expand and contract, (2) maintain humidity so that rust is prohibited and (3) filter the air to minimize dust.
Photographic Products:
Raw photographic materials decline fast in high temperatures and humidity. Other materials utilized in coating film also need a careful control of temperature. Thus, photographic-products industry is a great user of refrigeration & air conditioning.
Computer Rooms:
In computer rooms, air conditioning controls humidity, temperature & cleanliness of the air. Some of the electronic components operate in a defective manner if they become too much hot. One means of preventing such type of localized high temperature is to maintain the temperature of air in the computer room in the range of 20 0C to 23 0C. The electronic apparatus in the computer functions favourably at even lower temperatures, but this temperature is cooperation with the lowest comfortable temperature for occupants. A relative humidity of approximately 65% is maintained for comfort condition.
Air Conditioning of Vehicles:
For a comfortable journey, ships, trains, planes, buses are air conditioned. In several of these vehicles the vital contributor to the cooling load is the heat from solar radiation & in case of public transportation, heat from persons.