Conception d'un échangeur de chaleur à stockage d'énergie thermique par contact direct pour l'installation d'essai résidentielle à Zéro émission nette du NIST : Partie 1 : observation de l'écoulement.
Design of a direct-contact thermal energy storage heat exchanger for the NIST net-zero residential test facility: Part 1 flow observation.
Numéro : 2121
Auteurs : KEDZIERSKI M., LIN L.
Résumé
This paper describes the first part of the design of a direct-contact heat exchanger (DCHEX) to be used for thermal energy storage in the Net-Zero Energy Residential Test Facility (NZERTF) at the National Institute of Standards and Technology (NIST). The heat exchanger was designed for heat exchange between a phase-change material (PCM) and refrigerant. The design required the selection of a PCM that would be immiscible with the refrigerant and have a freezing point temperature of approximately 285 K. A key facet of the present investigation was the construction of a test apparatus to observe the flow between the refrigerant and the freezing PCM to ensure a well-distributed flow and one where the refrigerant could flow past the frozen PCM. The companion paper, Part 2, presents a design for direct-contact heat exchange between the PCM octanoic acid and the refrigerant R410A.
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Pages : 8 p.
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Détails
- Titre original : Design of a direct-contact thermal energy storage heat exchanger for the NIST net-zero residential test facility: Part 1 flow observation.
- Identifiant de la fiche : 30030474
- Langues : Anglais
- Sujet : Technologie
- Source : 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 10/07/2022
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