PhaseChange Material Melting in an Energy Storage Module for a Micro Environmental ControlSystem

Koz, Mustafa; EzzatKhalifa, H.

doi:10.1115/1.4040896

Title: PhaseChange Material Melting in an Energy Storage Module for a Micro Environmental ControlSystem

Journal Article · Mon Aug 20 00:00:00 EDT 2018 · Journal of Thermal Science and Engineering Applications

DOI:https://doi.org/10.1115/1.4040896· OSTI ID:1613632

Koz, Mustafa ^[1]; EzzatKhalifa, H. ^[2]

Mechanicaland Aerospace Engineering, Syracuse University, 62H Link Hall, Syracuse, NY,13244 e-mail:
Fellow ASME Mechanical andAerospace Engineering, Syracuse University, 462G Link Hall, Syracuse, NY,13244, e-mail:

An experimentally validated finite element model (FEM) was developed to analyze the design parameters of a latent heat storage device (LHSD) for a micro environmental control system (μX). The μX provides local cooling to an office worker in a room whose thermostat setpoint has been elevated from 23.9 °C (75 °F) to 26.1 °C (79 °F) in order to reduce heating, ventilation, and air conditioning (HVAC) energy consumption. For this application, the LHSD is designed to provide ≥50 W of cooling for a full, 8.5 h workday to restore thermal comfort in the warm, 26.1 °C room. The LHSD comprises several parallel slabs of encased phase change material (PCM) with interposed airflow channels. The airflow rate is selected to obtain ≥50 W of cooling at the end of the 8.5 h operation. The LHSD exhibits a decreasing cooling rate over the 8.5 h period when a constant airflow is passed through it, indicating that more cooling is supplied during the day than the minimum 50 W required for thermal comfort. The parametric analysis explores the effects of PCM thermal conductivity, slab thickness, air channel width, and number of slabs on LHSD performance. Parametric cases are compared against each other on the basis of their required PCM mass and energy consumption.

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Research Organization:: Syracuse Univ., NY (United States)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

DOE Contract Number:: AR0000526

OSTI ID:: 1613632

Journal Information:: Journal of Thermal Science and Engineering Applications, Vol. 10, Issue 6; ISSN 1948-5085

Publisher:: ASME

Country of Publication:: United States

Language:: English

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