Abstract: Process is described for reducing emissions of nitrogen oxides and carbon monoxide from fuel gas fired boilers by using a computer to closely control the flow rate of combustion air and by installing a duct to allow flue gas to recirculate into the air intake of the boiler. In most cases strict emission standards can be met without making any other mechanical modifications to the boiler. A computer controller maps burner characteristics and controls both a variable speed drive and the damper on the combustion air fan, and a damper on recirculated flue gas to meet emission requirements over the various firing rates while maintaining a stable flame free of pulsations. In some burners a simple cone structure placed in the burner provides additional flame stability.

Abstract: A solar cooling process is described in which tapwater is injected into an adiabatic flash chamber. A portion of the tapwater vaporizes to steam chilling the remainder. A special brine absorbs the water vapor in an absorber chamber. Then the brine is pumped over an open air evaporator where excess water picked up by the brine is driven off using solar or waste heat.

Abstract: A solar electric power generating process is described which consists of tapwater thermally contacted with special brine. Low pressure characteristics of the brine draw steam through a power generating turbine from the water into the brine. As the brine is pumped over an open air evaporator, excess water picked up by the brine is driven off using solar or waste heat.

Abstract: A solar electric power generating process is described which consists of tapwater thermally contacted with special brine. Low pressure characteristics of the brine draw steam through a power-generating turbine from the water into the brine. As the brine is pumped over an open air evaporator, excess water picked up by the brine is driven off using solar or waste heat. The tapwater is first purified in a demineralizer.

Abstract: A steam absorber apparatus is described which consists of horizontal tubes submerged in desiccant brine with steam injected from a perforated box positioned beneath the tubes. The injected steam is absorbed into the brine, warming the brine, tubes, and water flowing within the tubes.

Abstract: Process is described for reducing emissions of nitrogen oxides and carbon monoxide from fuel gas fired boilers by using a computer to closely control the flow rate of combustion air and by installing a duct to allow flue gas to recirculate into the air intake of the boiler. In most cases strict emission standards can be met without making any other mechanical modifications to the boiler. A computer controller maps burner characteristics and controls both a variable speed drive and the damper on the combustion air fan, and a damper on recirculated flue gas to meet emission requirements over the various firing rates while maintaining a stable flame free of pulsations. In some burners a simple cone structure placed in the burner provides additional flame stability.