AT-90-13-1 -- Cool Storage Retrofit of Rooftop Units and Direct Expansion Systems ✓ Most Recent

Covers retrofitting cool storage to two types of space-conditioning systems, rooftop units and direct expansion systems. Cool storage in these cases implies the use of ice as a storage medium, it was concluded that chilled water storage was not feasible.

KEYWORDS: air conditioning, energy storage, ice, cold sources, modernising, roof mounted, direct expansion refrigeration, load management, economics, payback period, costs, chilled water supply.