Effects of Ice Bridging Phenomena on Ice-making Characteristics of an Ice-on-coil Type Thermal Storage Apparatus
Abstract
Effects of ice bridging phenomena on ice-making characteristics of an ice-on-coil type thermal storage apparatus has been clarified, taking into account of two and three dimensional heat flow in analysis. These analytical results have agreed well with the experimental ones. Moreover, it has been possible to explain quantitatively not only both effects of geometrical and thermofluid dynamic conditions on the thermal performance after incipience of ice bridging, but also the development of ice bridging area. In the case of direct expansion type ice making, the ice making ability is strongly affected by the arrangement of the heat transfer tubes. On the other hand, in the case of brine type, though the local ice making ability is determined by the ice layer profile along the brine flow direction, the ability averaged in a whole of the ice storage tank is not so affected by the tube arrangement.
- Publication:
-
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
- Pub Date:
- 2011
- Bibcode:
- 2011TRACE..15..265M
- Keywords:
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- Bridging;
- Ice-on-coil;
- Static-type Ice Storage System;
- Phase Change;
- Experiment;
- Numerical analysis