Development of a time-temperature integrator and a container for ice-making system using cold outdoor air

A time-temperature integrator and an ice container were developed for ice making systems that use of outdoor cold air in the ice making process. The characteristics of the integrators are as follows. 1. A simple time-temperature integrator called the ''fountain unit'' was used as one of the components of the water discharge apparatus in an ice making system. The fountain unit consists of a specially constructed 25 L stainless steel water tank a thermostat a bottom inflow line and an upper discharge orifice. When the temperature of source water supplied through the bottom of the fountain unit is uniform, the unit serves to control the volume of water discharged per hour in proportion to the ambient air temperature. 2. When the fountain unit is used as a time-temperature integrator and water discharge apparatus, and when the velocity of the outdoor air directed over the ice surface is uniform, the resulting growth of the ice block corresponds closely with the integrated outdoor air temperature. 3. The ice container which is located directly below the fountain unit, is made of cloth hung from scaffolding. When the water that is sprayed on the cloth freezes, the cloth container becomes rigid and then has enough strength to support the thin thickness of water.