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experimental study on the inlet fogging system using two-fluid nozzles
Author(s): 
Pages: 132-135
Year: Issue:  2
Journal: Journal of Thermal Science

Keyword:  Evaporative Cooling Inlet Fogging Energy Savings Two-fluid Nozzles;
Abstract: Large-capacity compressors in industrial plants and the compressors in gas turbine engines consume a considerable amount of power.The compression work is a strong function of the ambient air temperature.This increase in compression work presents a significant problem to utilities,generators and power producers when electric demands are high during the hot months.In many petrochemical process industries and gas turbine engines,the increase in compression work curtails plant output,demanding more electric power to drive the system.One way to counter this problem is to directly cool the inlet air.Inlet fogging is a popular means of cooling the inlet air to air compressors.In the present study,experiments have been performed to investigate the suitability of two-fluid nozzle for inlet fogging.Compressed air is used as the driving working gas for two-fluid nozzle and water at ambient conditions is dragged into the high-speed air jet,thus enabling the entrained water to be atomized in a very short distance from the exit of the two-fluid nozzle.The air supply pressure is varied between 2.0 and 5.0 bar and the water flow rate entrained is measured.The flow visualization and temperature and relative humidity measurements are carried out to specify the fogging characteristics of the two-fluid nozzle.
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