Reports the results of an investigation into the energy consumption of an ice storage system with and without heat recovery and with and without cold air distribution systems. Simulation of a prototypical building in several climates provided the basis for comparison. Results showed that a 'smart' control strategy is needed to make ice storage with heat recovery efficient. States that this strategy ties to melt just enough ice so that the recovered heat generated to remake this ice is enough to meet the daily heating demand. Cold air distribution significantly reduced energy use. Cold deck reset proved disadvantageous in this case.

KEYWORDS: Energy consumption, energy storage, ice storage, heat recovery, cold, air distribution, controls, buildings, calculating.