Auxiliary outside air refrigeration system
An auxiliary outside air refrigeration system is described for cooling an enclosure comprising: a conventional refrigeration system operably disposed to cool the air inside the enclosure; a first airflow passage connecting the interior of the enclosure with a source of ambient air; a motorized outside air fan positioned to move cooler air from the exterior of the enclosure through the first airflow passage into the enclosure; a second airflow passage connecting the interior of the enclosure with the exterior of the enclosure to exhaust warmer air from the enclosure; a temperature sensor to sense the temperature of the outside air; a temperature sensor to sense the temperature of the air inside the enclosure; a thermostatic control means in communication with the inside and outside temperature sensors and in electrical communication with the outside air fan whereby the outside air fan is actuated whenever the air inside of the enclosure is warmer than a first pre-determined temperature and the outside atmospheric air is cooler than a first pre-determined number of degrees cooler than the air inside the enclosure; the outside air fan being de-actuated whenever the outside air temperature is warmer than a second predetermined number of degrees cooler than the air temperature inside the enclosure and, a thermostatic control means by which the compressor of the conventional refrigeration system is actuated whenever the temperature of the air inside the enclosure is above a third pre-determined temperature which is warmer than the cut-in temperature of the enclosure for the outside air refrigeration system, such that the compressor does not operate as long as the outside air refrigeration system is effectively cooling the air inside the enclosure.
- Assignee:
- IMS; EDB-93-134289
- Patent Number(s):
- US 5239834; A
- Application Number:
- PPN: US 7-912696
- OSTI ID:
- 6260604
- Country of Publication:
- United States
- Language:
- English
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320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
AIR CONDITIONERS
AMBIENT TEMPERATURE
BUILDINGS
CLOSED-LOOP CONTROL
CONTROL
CONTROL EQUIPMENT
CONTROL THEORY
ENERGY CONSERVATION
ENERGY SYSTEMS
EQUIPMENT
SPACE HVAC SYSTEMS
TEMPERATURE CONTROL
THERMOSTATS