Container for a heat storage medium

US4211208A · kind A · utility

Assignee

• Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V. · DE

Inventor

• Friedrich Paul Lindner · Ried im Innkreis, AT

Key dates

• Filing date: Dec 13, 1977
• Grant date: Jul 8, 1980
• Expiry date: Dec 13, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/14
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A container is disclosed for storing a heat storage medium which changes ween solid and fluid states to store and release heat, characterized in that the container includes flexible walls which are displaced to vary the volume of the container in accordance with changes of the volume of the heat storage medium when in the solid state. The container includes at least one biasing device which normally biases the resilient walls toward an inwardly contracted condition for storing a first volume of the heat storage medium in the fluid state. During initial removal of heat from the medium, the medium changes from its fluid to its solid state, and upon further removal of heat from the solid medium, the density of the solid medium increases, thereby resulting in a decrease in the volume of the solid medium with the container remaining in its initial contracted condition. Upon addition of heat to the solid medium, the density of the solid medium decreases thereby resulting in an increase in volume of the solid medium and an attendant increase in volume of the container to its expanded condition.