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1. (WO2018026659) THERMAL STORAGE HEAT EXCHANGER STRUCTURES EMPLOYING PHASE CHANGE MATERIALS

Pub. No.:    WO/2018/026659    International Application No.:    PCT/US2017/044486
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Sat Jul 29 01:59:59 CEST 2017
IPC: F28D 20/02
F28D 20/00
Applicants: RAYTHEON COMPANY
Inventors: ALTMAN, David
MANISCALCO, Nicholas Ian
BALDUCCI, Jonathan
SOLE, Joshua D.
BUSTAMANTE, John G.
RODRIGUEZ, Christian O.
Title: THERMAL STORAGE HEAT EXCHANGER STRUCTURES EMPLOYING PHASE CHANGE MATERIALS
Abstract:
A heat exchanger (120, 200) includes at least one conduit (124, 204a-204n) configured to carry a working fluid. The heat exchanger also includes a plurality of chambers (122, 206a-206n, 208a-208n) in proximity to the at least one conduit, each chamber configured to contain a phase change material (PCM) that expands upon freezing. The at least one conduit and the plurality of chambers are thermally coupled for transfer of thermal energy between the working fluid and the PCM in each chamber. One wall of each chamber is formed of a compliant layer (210) configured to deform to increase a volume of the chamber as the PCM expands upon freezing.