2022 Fiscal Year Research-status Report
A novel heat transfer enhancement method: Combination of Nano-encapsulated PCM and metal foam
| Project/Area Number |
22K03965
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2022-04-01 – 2025-03-31
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| Keywords | heat trans. enhancement / microfluidics / phase change material / non-encapsulated PCM |
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| Outline of Annual Research Achievements |
A wide literature review was done and many articles in this field was studied carefully. In order to solve the governing equations, two solvers were made in the COMSOL and OPENFOAM software. The governing equations were made dimensionless and the governing parameters were obtained. The effects of them on maximizing the heat transfer and minimization of pressure drop were investigated. The study was done for micro channels with rectangular cross-section. Many interesting results were found, and that’s why an abstract relating to the obtained results was sent to an international conference. An experimental device was designed and necessary equipment and materials such as microchannel, nano-encapsulated PCM etc. were ordered and received. Establishment of the experimental setup was started.
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| Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
The numerical results are needed before designing an experiment setup. A lot of revisions had to be done in the standard solvers of two programs in COMSOL and OPENFOAM. This long process of revisions of standard solvers caused a slight delay in the plan, but now we have two solvers works successfully. After receiving the interesting results by these solvers, the experiment setup could be designed and the necessary equipment could be ordered. That's why the experimental setup will be finished in this year (2023) and experiments will be started.
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| Strategy for Future Research Activity |
a) The experimental setup will be fully completed and experiments will be started for the channel with heat source and a channel with heat sink.
b) Numerical results will be obtained for different Reynolds number and nano-encapsulated PCM concentration and compared with experimental results, by this way the validation of the obtained numerical results will be done.
c) The effect of dimensionless parameters which are Reynolds number, nano-encapsulated PCM concentration and operation temperature will be studied in details.
d) The obtained results will be published in a journal and an international conference.
e) The aforementioned steps (from a to d) will be repeated for a periodical microfluid channel consisting of both heating and cooling representing more realistic case.
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| Causes of Carryover |
The numerical results are needed before designing an experiment setup. A lot of revisions had to be done in the standard solvers of two standard solvers in COMSOL and OPENFOAM. This long process of revisions of standard solvers caused a slight delay in the plan, but now we have two solvers works successfully. This difficulty of the numerical works caused all equipment could not be ordered and some parts of the budget were transferred to the next year (2023).
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Research Products
(1 results)
