The Bahnson Company

Ac Corporation

Roger H Lamar

Allen James Bradley

Henry Arnold Zwicky

Tony Gray Peele

Robert A Davis

An air conditioning system and method whereby water sprays are arranged and modulated in air washers from recirculated water and a cooled or non-cooled central water source to provide precise psychometric (dry bulb temperature, relative humidity, dew point temperature and specific humidity) conditions in the space being conditioned while conserving energy by reducing the cooling load, reducing the pumping horsepower load, and eliminating reheat under all weather conditions. This system also reduces maintenance and operating costs by allowing chemical treatment, makeup water, water overflow, and water filtration to be provided in a central location even with multiple air washers and water chillers.

Air conditioning system and method for providing precise psychometric

A system for minimizing the energy consumption in a central air conditioning unit incorporating a refrigeration unit which is normally in operation to supplement or substitute for the cooling effect of outside air. The system employs sensor to sense the enthalpy of the return air entering the unit from the work space, the outside air entering the unit from the outside, and the washer air discharged into the work space from the unit, and controls the operation of the unit in accordance with the relative levels of enthalpy at these points. The energy content of the discharged washer air may be modified by modulating dampers controlling the proportion of outside and recirculated air, and also by modulating the washer which provides evaporative cooling and, in addition, cooling by refrigeration. The controls keep the outdoor air dampers normally closed when the enthalpy of the outdoor air is higher than the enthalpy of the return air and keep the outdoor air dampers normally opened when the enthalpy of the outside air is less than the enthalpy of the return air. Regulating means provide auxiliary signals to modulate the dampers to avoid adversely affecting the conditioning effect of the washer air in the work area, and also to enable the continued operation of the refrigeration unit without damage when the system would otherwise call for operating the unit at less than the minimum safe operating load.

Controlling energy in an air-conditioning system

An air-conditioning system for a work space in which recirculated air is mixed with outside air and the mixture is passed through a washer. The controls for the system include an absolute moisture controller in the primary air supply downstream from the air washer, a direct-acting humidistat for the room air and a reverse-acting thermostat for the room air. The proportional output signals of the thermostat and humidistat are fed to a high-and-low signals selector which transmits the higher of the two signals to a heating control for the recirculated air and the lower of the two signals to a throttling valve for the air washer. In normal operation, the air washer is fully throttled before the heating control is activated to supply heat to the recirculated air since the heating control is responsive to a pressure above the range of pressures which are effective to modulate the washer sprays. Under special conditions, the throttling of the spray in the air washer is reduced after the heating control is activated so as to increase the humidification effected by the air washer.

Growing community of inventors

Winston-Salem, NC, United States of America

Roger H Lamar