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A study on investigating the thermal and energy saving performances of flat plate heat exchanges (FPHE) with different corrugated channel configurations.

Number: pap. 2567

Author(s) : PAN D., PAN Y., ZHOU X.

Summary

Due to scarce conventional energy resources, energy consumptions in the buildings occupied a large proportion of the overall energy consumptions. Previous studies investigated the application of the plate heat exchangers in the heat recovery of air ventilation systems. The objective of this paper is to offer new methods to improve the thermal and energy saving performances of flat plate heat exchangers (FPHE) with different corrugated channel configurations and provide a guidance for the optimization design of a novel plate heat exchanger. This paper firstly compared the predicted simulation results with previous experimental results and verified the validation of the numerical methods. Then, this paper used the numerical method to investigate the heat transfer characteristics and the pressure drop as well as the flow distributions in plate heat exchangers with three different corrugated configurations(triangular, semicircle and trapezoidal) and different the channel spacing. The numerical results showed that, corrugated configurations not only had a significant positive impact on heat transfer enhancement, but also led to an increase in the pressure drop through the corrugated channel. It can be seen that the effects of the corrugated channel configurations on the heat transfer and pressure drop were various for different corrugated channels at different Re numbers. In addition, the comparisons of performance factors identified that when the channel spacing was larger, it was more appropriate to choose a triangular corrugated channel at a lower Re number. However, at a higher Re number, selecting the semicircle corrugated channel may be more suitable.

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Pages: 10

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Details

  • Original title: A study on investigating the thermal and energy saving performances of flat plate heat exchanges (FPHE) with different corrugated channel configurations.
  • Record ID : 30024649
  • Languages: English
  • Source: 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2018/07/09

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