자성유체를 이용한 다이나믹형 빙축열 시스템에 관한 실험적 연구

Abstract

In this study, It induced to a conclusion below by experiment consideration to regarding an effective supercooling ends method of the flow cooling water in a tube of continuous ice making method and the static cooling water in a tube of continuous Ice making method which used magneticfluid in a dynamic type Ice storage system. Continuous Ice making in a tube of the flow cooling water was shortened about 12 minutes until supercooling ends that case winch gave vertical eccentricity rotation magnetic field 120rpm than did not provide magnetic field by experimental result that was tested to supercooling ends effect from shape control of magneticfluid Continuous Ice making method in a tube of the static cooling water compared with and reviewed the case that was not provided with the magnetic field and exposed cooling surface instantaneously by magnetic field. It confirmed that supercooling degree ◁Te, ◁Ts sand ◁Tw became lower because of heat transfering increasing by the occurrence of natural convection between after cooling staffing progress tune 1-3 minutes if it did not give a magnetic field, and performed the supercooling ends when natural convection occurred confirmed that refrigerating capacity was better. That relation ◁Te and tε/(◁Te―◁Ts) after convection occurred, was not depended on Tb and initial temperature If the depth of water and thickness of magneticfluid were regular and It was possible to verify conjecture of tp from ◁ Ts and ◁Tc.