Thermal Cycle and Capacitance Testing of Mezzo Industries Phase Change Material Heat Capacitor

Michael C Johnston; Jon-Michael Tucker; Ryan P Dippolito; Priscilla Nizio; Ian Anchondo; Dongeun Lee

NASA NTRS · 20260005518

Thermal Cycle and Capacitance Testing of Mezzo Industries Phase Change Material Heat Capacitor

Michael C Johnston·Jon-Michael Tucker·Ryan P Dippolito·Priscilla Nizio·Ian Anchondo·Dongeun Lee

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Abstract

A phase change material heat capacitor prototype, designed and built under a NASA Small Business Innovation Research grant by Mezzo Technologies, was tested through coolant thermal cycling within the expected flow rates and temperature range of the Orion spacecraft’s propylene glycol-water mixture coolant system. Testing was performed with the phase change material contained under sealed conditions after a degassing procedure and exposed to atmosphere without prior degassing. The useful heat storage capacitance was measured and compared to Orion spacecraft requirements and theoretical N-Pentadecane storage capacity.

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Propylene Glycol Water N-pentadecane Laser Welding Mezzo Technologies Orion Thermal Control System Phase Change Material Heat capacitor

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Michael C Johnston, Jon-Michael Tucker, Ryan P Dippolito, Priscilla Nizio, Ian Anchondo, Dongeun Lee. Thermal Cycle and Capacitance Testing of Mezzo Industries Phase Change Material Heat Capacitor. https://ntrs.nasa.gov/citations/20260005518

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Heat capacitor subject Laser Welding subject Mezzo Technologies subject N-pentadecane subject Orion subject Phase Change Material subject

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