IIR document

Dynamic behavior study of multi-section vertical absorption heat exchanger.

Number: pap. n. 1570

Author(s) : ZHU C., XIE X., JIANG Y.

Summary

Multi-section vertical absorption heat exchanger (MVAHE) is a novel heat exchanger applied in district heating system. In field application, the MVAHE faces many challenges like sudden black out and heat source break down. Therefore, dynamic behavior study is critical to reach higher stability and better heat exchange performance. The working fluid flows through several sections inside MVAHE under gravity and section vapor pressure difference. An intensive distributed parameter dynamic model is built to study the pressure and liquid level response under transient conditions. The model is validated by test result. Start-up process is studied in detail. A better control strategy is recommended.

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Pages: 8

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Details

  • Original title: Dynamic behavior study of multi-section vertical absorption heat exchanger.
  • Record ID : 30026539
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.1570

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