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Title: Method of energy load management using PCM for heating and cooling of buildings

A method is described for energy load management for the heating and cooling of a building. The method involves utilizing a wallboard as a portion of the building, the wallboard containing about 5 to about 30 wt.% phase change material such that melting of the phase change material occurs during a rise in temperature within the building to remove heat from the air, and a solidification of the phase change material occurs during a lowering of the temperature to dispense heat into the air. At the beginning of either of these cooling or heating cycles, the phase change material is preferably ``fully charged``. In preferred installations one type of wallboard is used on the interior surfaces of exterior walls, and another type as the surface on interior walls. The particular PCM is chosen for the desired wall and room temperature of these locations. In addition, load management is achieved by using PCM-containing wallboards that form cavities of the building such that the cavities can be used for the air handling duct and plenum system of the building. Enhanced load management is achieved by using a thermostat with reduced dead band of about the upper half of a normal dead bandmore » of over three degrees. In some applications, air circulation at a rate greater than normal convection provides additional comfort. 7 figs.« less
Inventors:
;
Issue Date:
OSTI Identifier:
212599
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 320100; PA: EDB-96:065088; SN: 96001565480
Patent Number(s):
US 5,501,268/A/
Application Number:
PAN: 8-083,678
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 26 Mar 1996
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; HEATING SYSTEMS; ENERGY MANAGEMENT; COOLING SYSTEMS; ENERGY MANAGEMENT SYSTEMS; PHASE CHANGE MATERIALS; DESIGN; WALLS; OPERATION

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