Efficiency of Cold Accumulation and Chilling Machine Usage

Abstract

This is continuation of author’s works in energy saving area; the work’s aim is to identify opportunities for energy cost reducing when cold producing by vapor compression chilling machine with variable cooling load. Have been considered schemes, in which the stored cold compensates the cooling load’s peaks. Have been presented the results of thermodynamic calculations, which show the possible ranges of chilling machine performance changing while working together with a cold accumulator. As a device for cold reserve storage have been considered an ice accumulator having short, not exceeding a day “charge-discharge” cycle, and a seasonal cold accumulator charged during the winter.