DETERMINATION OF HEAT AND MASS EMISSION COEFFICIENTS IN A HYBRID COOLING TOWER WITH TRANSVERSELY FINNED RADIATOR PIPES

A hybrid cooling tower, which is a promising type of coolers, can be used successfully to cool the circulating water of industrial enterprises taking into account the modern requirements for energy effi ciency, resource saving, and environmental friendliness. A hybrid cooling tower design has been developed including a sprinkler made of inclined corrugated contact elements and an internal fi nned tubular radiator. The purpose of the work is to experimentally determine the volumetric coeffi cients of heat and mass emission in the developed hybrid cooling tower for cooling circulating water. A diagram of an experimental installation of a cooling tower with hybrid cooling system is presented and described. Graphic dependences were constructed for the volumetric coeffi cients of mass emission and heat emission on the average fl ow rate of cooling air at various wetting mass densities. A dimensionless equation has been obtained for determining the volumetric coeffi cients of mass emission in a hybrid cooling tower with transverse fi nning of radiator pipes. A comparison of volumetric coeffi cients of mass emission for the developed cooling tower with other water-cooling devices showed the potential of its usage for cooling circulating water, especially at high ratios of gas and liquid phase loads.
A hybrid cooling tower, which is a promising type of coolers, can be used successfully to cool the circulating water of industrial enterprises taking into account the modern requirements for energy effi ciency, resource saving, and environmental friendliness. A hybrid cooling tower design has been developed including a sprinkler made of inclined corrugated contact elements and an internal fi nned tubular radiator. The purpose of the work is to experimentally determine the volumetric coeffi cients of heat and mass emission in the developed hybrid cooling tower for cooling circulating water. A diagram of an experimental installation of a cooling tower with hybrid cooling system is presented and described. Graphic dependences were constructed for the volumetric coeffi cients of mass emission and heat emission on the average fl ow rate of cooling air at various wetting mass densities. A dimensionless equation has been obtained for determining the volumetric coeffi cients of mass emission in a hybrid cooling tower with transverse fi nning of radiator pipes. A comparison of volumetric coeffi cients of mass emission for the developed cooling tower with other water-cooling devices showed the potential of its usage for cooling circulating water, especially at high ratios of gas and liquid phase loads.
Author:  I. N. Madyshev, V. V. Khar'kov
Keywords:  heat and mass exchange, cooling, circulating water, cooling tower, tubular radiator, fi nning
Page:  1050 - 1057