Abstract: A ground freezing method and system which circulates refrigerated heat transfer fluid through freeze pipes in the ground at a low temperature of at least −52° C. (−62° F.) to minimize drilling for the freeze pipe installation. The heat transfer fluid is preferably aqua ammonia (ammonium hydroxide) because of its beneficial characteristics in this application. The circulating heat transfer fluid is preferably cooled by a refrigeration system that includes low and high stage cycles arranged in a cascade relationship and using ammonia or another refrigerant in the high stage refrigeration system and carbon dioxide as the refrigerant in the low stage refrigeration system.

Abstract: A method and system for controlling the cooling of small milk quantities in a cooling tank (2) having a bottom wall portion (12) with a milk cooling surface (12′) within the tank being part of a cooling circuit an agitator (19) within the tank for stirring the milk therein. The gist of the invention is a) providing an element for measuring the milk quantity in the tank, and a temperature transducer (11) for monitoring the milk temperature in the tank, b) providing, in the cooling circuit, an evaporator (4) connected to the bottom wall portion of the tank, a compressor (5), and a condenser (7), c) controlling the temperature of the refrigerant in the evaporator by regulating the vaporizing pressure, so that the temperature of the milk cooling surface (12′) is always higher than 0° C. when the compressor (5) is running, d) monitoring the milk quantity in the tank, and, when sufficient/insufficient for the agitator to work properly.

Abstract: In a vehicle cockpit module assembly having at least an air conditioner disposed inside a dashboard, a protrusion piece for determining an arrangement position of an air-conditioning unit of the air conditioner within the dashboard is provided at the air-conditioning unit. A front load support portion for supporting a front side load of the air-conditioning unit is constructed by a drain pipe of the air-conditioning unit, and a rear load support portion for supporting a rear side load of the air-conditioning unit is constructed by rear foot ducts of the air-conditioning unit. Accordingly, in the cockpit module assembly, the air conditioner can be stably supported in the vehicle.

Abstract: The capacity control range of an interior unit of a multiple type absorption air conditioning system is enlarged, and turning on and off of cooling/heating and switch over between the cooling and heating can be readily and safely performed. The capacity control range is increased by reserving a liquid refrigerant in an absorption cool/warm water unit. An interior unit is connected to the absorption cool/warm water unit by a communication device. The operation of the cool/warm water unit caused by turning on and off the system and switch over between cooling and heating are automatically controlled by an operation control device. Consequently, the operation is simplified, and safety is improved.

Abstract: In an absorption cooling system, a refrigerant condensate is converted to a refrigerant gas in an evaporator to achieve a cooling effect. The refrigerant gas is then converted into smaller bubbles in an inlet chamber of an absorber, and a mixture of those bubbles and lithium bromide solution is raised through a heat-exchange conduit to an outlet chamber of the absorber to cause the refrigerant gas to be absorbed by the lithium bromide. The lithium bromide which is diluted by the refrigerant gas is fed to a generator which separates the refrigerant from the lithium bromide. Residual refrigerant gas in the out let chamber of the absorber is returned to the inlet chamber.

Abstract: A decorative air temperature equalizing column for placement in a room and circulating air from the upper portion of the room to the lower portion thereof including a hollow columnar member, an air inlet in the upper portion of the columnar member, an air outlet in the lower portion of the columnar member, and a fan in the columnar member for moving warm air from the upper portion of the room into the lower portion thereof.