Share

IIR document

An online optimum control method for magnetic cooling systems under variable load operation.

Author(s) : QIAN S., YUAN L., YU J.

Type of article: Article, IJR article

Summary

Magnetic cooling system has a significant energy saving benefit, if the part load operations can be properly leveraged. In this study, an online optimum control method is proposed that not only automatically maintains the temperature of the cold heat exchanger, but also provides additional efficiency enhancement since the optimum utilization factor is determined based on the instant operating conditions in real time. Numerical simulations are carried out to characterize the steady state performance map. The database of the optimum utilization factor is then developed based on it. When applying the optimum utilization factor to the control method, both the transient responses during the start-up process and the variable load operation are evaluated. It is found that the proposed online optimum control method introduces an additional transient loss, due to the simultaneous adjustments of frequency and utilization factor.

Available documents

Format PDF

Pages: 97-107

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: An online optimum control method for magnetic cooling systems under variable load operation.
  • Record ID : 30025351
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 97
  • Publication date: 2019/01
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2018.09.033

Links


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

Indexing