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Finned phase change energy storage heat exchanger

A technology of phase change energy storage and phase change heat storage, which is applied in the field of phase change energy storage, which can solve the problems of quantity limitation, reduction of heat storage capacity of phase change materials, and maintenance of room temperature stability by ignoring phase change materials, so as to ensure heat transfer effect , increase the cold storage capacity, and enhance the effect of heat transfer

Inactive Publication Date: 2020-02-21
TIANJIN UNIV +1
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  • Abstract
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Problems solved by technology

The problem with this system is that the phase change material is only used as a heat storage unit in this system, and the role of the phase change material in maintaining room temperature stability is ignored
Thirdly, the phase change energy storage material is filled between the water supply and return pipelines and separated from the water system, the heat storage capacity of the phase change material is reduced, and the amount of use is also limited

Method used

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  • Finned phase change energy storage heat exchanger
  • Finned phase change energy storage heat exchanger

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] As shown in the accompanying drawings, a fin type phase change energy storage heat exchanger of the present invention includes a closed heat exchanger shell 1, and the top wall and the bottom wall in the heat exchanger shell are respectively fixed with A plurality of elliptical hollow column fins 2, an air inlet 3 is opened on the left wall of the heat exchanger shell 1, an air outlet 4 is opened on the right wall of the heat exchanger shell 1, and an air outlet 4 is opened on the right wall of the heat exchanger shell 1. The heat exchanger shell 1 and the elliptical hollow column fins 2 are respectively filled with phase-change heat storage materials, and the phase-change heat storage materials are made of 95% n-decanoic acid and 5% decanoic acid, respectively. Glycol eutectic mixture has filling holes 5 on the top wall and bo...

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Abstract

The invention discloses a finned phase change energy storage heat exchanger which comprises a closed heat exchanger shell. A plurality of elliptical hollow column fins are respectively fixed on the top wall and the bottom wall in the heat exchanger shell, an air inlet is formed in the left wall of the heat exchanger shell, an air outlet is formed in the right wall of the heat exchanger shell, andthe heat exchanger shell and the elliptical hollow column fins are filled with phase change heat storage materials correspondingly. A eutectic mixture comprising 95% by mass of n-decanoic acid and 5%by mass of dodecanol is adopted as the phase change heat storage materials. Filling holes are formed in the top wall and the bottom wall of the heat exchanger shell correspondingly. The phase change heat exchanger can be used as a pre-cooling device in cooperation with various cooling systems to ensure the heat transfer effect.

Description

technical field [0001] The invention relates to the technical field of phase-change energy storage, in particular to a finned phase-change energy-storage heat exchanger that can be used at an indoor cooling terminal. Background technique [0002] Phase change energy storage is an energy storage technology that utilizes the state change of phase change materials to absorb or release heat. Compared with other materials, it has the advantages of high energy storage density, small device volume, stable heat storage and release process, and wide applicable temperature range. , can solve the problem of mismatch between supply and demand of energy utilization in time and space, and is an energy-saving and efficient energy utilization method. [0003] Phase-change material packaging methods mainly include macro-encapsulation and micro-encapsulation. Micro-encapsulation is to adsorb phase-change materials in corresponding coating materials. Due to the instability of microstructure, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02
CPCF28D20/021Y02E60/14
Inventor 吕石磊李新花贾维
Owner TIANJIN UNIV
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