초록 ▼

A low-cost and thermodynamically efficient implementation of a two-stage refrigeration system applied to a retail refrigerator. The invention includes a simple and easily manufactured thermally efficient and low-cost evaporation unit. The invention further includes a thermal energy storage module an

A low-cost and thermodynamically efficient implementation of a two-stage refrigeration system applied to a retail refrigerator. The invention includes a simple and easily manufactured thermally efficient and low-cost evaporation unit. The invention further includes a thermal energy storage module and an energy efficient control protocol to maintain steady temperatures in the fresh and frozen food sections, to permit energy efficient defrosting of the heat exchange surfaces in the freezer section, and minimize losses associated with condensing unit on-and-off cycling.

대표청구항 ▼

[ What is claimed is:] [1.] An evaporation unit comprising:a containment vessel;an evaporator partially enclosed within the containment vessel, the evaporator formed with at least one evaporation tube; andan expandable container enclosed within the containment vessel, the expandable container placed

[ What is claimed is:] [1.] An evaporation unit comprising:a containment vessel;an evaporator partially enclosed within the containment vessel, the evaporator formed with at least one evaporation tube; andan expandable container enclosed within the containment vessel, the expandable container placed adjacent to a portion of the at least one evaporation tube and includinga first sheet including an array of closely spaced protrusions pre-formed prior to being enclosed within the containment vessel, the array of protrusions are situated adjacent and generally surrounding to the at least one evaporation tube,a substantially flat, first backing sheet sealed to a periphery of the first sheet, anda thermal energy storage (TES) material contained between the first sheet and the first backing sheet.