해양심층수를 이용한 냉동법 담수화시스템 성능 특성

Abstract

The paper presents an experimental study of freezing desalination system using deep seawater. The experimental apparatus is composed of a compressor, a condenser, an expansion valve and an evaporator. The capacity of the compressor is 3/4 horse power and seawater storage tank is 20 liters. R-134a is applied as a refrigerant. The performance characteristics of freezing desalination system such as ice productivity and seawater temperature variation, etc. were experimented on the -15 ∼ -5℃ of evaporating temperature and 5 ∼ 26℃of seawater temperature. The temperature variation of seawater in the storage tank showed the similar values to each other. When the heat source is seawater heat pump discharge, the ice productivity decreased by about 4.3%/4 horse power and seawater storage tank is 20 liters. R-134a is applied as a refrigerant. The performance characteristics of freezing desalination system such as ice productivity and seawater temperature variation, etc. were experimented on the -15 ∼ -5℃ of evaporating temperature and 5 ∼ 26℃of seawater temperature. The temperature variation of seawater in the storage tank showed the similar values to each other. When the heat source is seawater heat pump discharge, the ice productivity decreased by about 4.3%