Share

IIR document

Transient modeling of a flash tank vapor injection heat pump system. 1. Model development.

Author(s) : QIAO H., AUTE V., RADERMACHER R.

Type of article: Article, IJR article

Summary

This two-part article explores the dynamic behavior of a flash tank vapor injection heat pump system from a numerical simulation perspective. Part I provides a first-principles model describing the transient heat transfer and flow phenomena of the system with detailed modeling techniques for each component. The vapor injection scroll compressor is analyzed with the internal heat transfer between the refrigerant and metallic parts taken into account. Lumped-parameter models are developed for the flash tank and expansion devices. Heat exchangers are modeled using a finite volume approach and accounting for the complex tube circuitry. The separated flow model without interfacial exchange is utilized for two-phase flows in order to incorporate an appropriate void fraction model so that a more accurate prediction for refrigerant mass distribution can be achieved. The modular nature of the component models allows flexibility in the system configuration. Transient simulations are carried out for start-up and shut-down operations. A detailed comparison of model predictions against experimental data is presented in the companion paper.

Available documents

Format PDF

Pages: 169-182

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Transient modeling of a flash tank vapor injection heat pump system. 1. Model development.
  • Record ID : 30013055
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 49
  • Publication date: 2015/01

Links


See other articles in this issue (18)
See the source

Indexing