Conduction-controlled phase-change energy storage with radiative heat addition

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Journal of Energy Resources Technology; (United States)

DOI:https://doi.org/10.1115/1.2906446· OSTI ID:7128572

Prasad, A; Singh, S P ^[1]

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1. Regional Inst. of Technology, Jamshedpur (India). Mechanical Engineering Dept.

Thermal energy storage in a phase-change material due to latent heat of fusion caused by conduction-controlled melting during radiative heat injection is considered. It is solved employing variational, integral, and quasi-steady methods. They yield closed-form solutions which are functions of the Stefan number, St, and the surrounding temperature. The results for the design parameters for the storage system obtained from these methods exhibit insignificant variation and are unaffected by the surrounding temperature, [theta][sub a], for St<0.1. The second law efficiency for this storage is devised. It is insensitive to changes in St and the heat absorption depth, [eta][sub m], for [theta][sub a][<=]1.2.

• OSTI ID: 7128572
• Journal Information: Journal of Energy Resources Technology; (United States), Journal Name: Journal of Energy Resources Technology; (United States) Vol. 116:3; ISSN 0195-0738; ISSN JERTD2
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250600* -- Energy Storage-- Thermal
DESIGN
ENERGY STORAGE
ENTHALPY
EQUIPMENT
FUSION HEAT
HEAT STORAGE
LATENT HEAT STORAGE
MATERIALS
MATHEMATICAL MODELS
PHASE CHANGE MATERIALS
PHYSICAL PROPERTIES
STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
THERMODYNAMIC PROPERTIES
TRANSITION HEAT