Air Compressor For Our Science Building.
The business end of this three cylinder compressor sub assembly as seen top left. The fan, seen in upper center, blows cooking air into the rectangular box which contains a heat exchanger to cool air heated by the compressor. As discussed in both physics and chemistry, the energy that goes into compressing any gas, appears in the gas itself as greatly increased temperature!! This heating of a compressed gas (air in this case) is a known as adiabatic temperature increase. This air compressor supplies compressed air (~60 psi) to stop cocks in all work benches in all building lab rooms. This same compressed air source us used to provide "pneumatic muscle" to open the hot water/ chilled water valves in each room and lab. Ventilation control dampers are similarly powered. The room thermostat, as is needed, provides the source of control for the pneumatic pressure to open these valves and dampers. These pneumatic operated valves and dampers are shown in my photos if the upper three floors of our Science Building. Click on the "Science Building Link" at the top center of this page.
HVAC Equipment Room, Basement of Science Building, USCA Campus, Aiken, SC.
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(Photo = 5142 ...... WayPt = `000 |w|' 420 ft)