해수냉각시스템용 만액식 증발기의 열전달 특성에 관한 실험적 연구

Abstract

Due to the water temperature rising, change in an ecosystem of the ocean, reckless catch of fishing, a catch of fishes has gradually declined as compared to its past. In cases of purse seine, extreme change in oil price, lack of skilled labors, and inflation have weaken their competitive position in the fish market. Most of fishermen just use ice cooling system to manage and store fishes captured on the fleet. However, the ice cooling system caused difficulty in maintaining proper temperature in the storage of fleet and salt density in addition to limitation on operating hours. The purpose of this research is to supplement those problems mentioned above and to improve profitability of fish industry. We processed an experiment on characteristics of heat transfer with boiling flooded type evaporator before we plan and manufacture seawater cooling system that can directly cool seawater in the storage of the fleet. The experiment of this paper confirms the change of seawater temperature, flow rate and saturation temperature of refrigerant. By boiling experiment of flooded type evaporator, we found out that all the data from experiments can be useful for planning actual flooded type evaporator. The objective of this research is to design and manufacture seawater cooling system that can be installed and loaded in the storage of fish carrier which is in the 200-ton class.