Search results with tag "Hvac and refrigeration system"

4. HVAC AND REFRIGERATION SYSTEM - A staturory body …

Heat flows naturally from a hot to a colder body. In refrigeration system the opposite must occur i.e. heat flows from a cold to a hotter body. This is achieved by using a substance called a refrig-erant, which absorbs heat and hence boils or evaporates at a low pressure to form a gas. This

  System, Pressure, Refrigeration, Body, Hvac, Hvac and refrigeration system