• Home page
  • Publications

  • Modelling a ground-coupled heat pump system usi...

IIR document

Modelling a ground-coupled heat pump system using adaptive neuro-fuzzy inference systems.

Author(s) : ESEN H., INALLI M., SENGUR A., et al.

Type of article: Article, IJR article

Summary

The aim of this study is to demonstrate the usefulness of an adaptive neuro-fuzzy inference system (ANFIS) for the modelling of ground-coupled heat pump (GCHP) system. The GCHP system connected to a test room with 16.24 m2 floor area in Firat University, Elazig. (38.41°N, 39.14°E), Turkey, was designed and constructed. The heating and cooling loads of the test room were 2.5 and 3.1 kW at design conditions, respectively. The system was commissioned in November 2002 and the performance tests have been carried out since then. The average performance coefficients of the system for horizontal ground heat exchanger in the different trenches, at 1 and 2 m depths, were obtained to be 2.92 and 3.2, respectively. Experimental performances were performed to verify the results from the ANFIS approach. In order to achieve the optimal result, several computer simulations have been carried out with different membership functions and various number of membership functions. The most suitable membership function and number of membership functions are found as Gauss and 2, respectively. For this number level, after the training, it is found that root-mean squared value is 0.0047, and absolute fraction of variance value is 0.9999 and coefficient of variation in percent value is 0.1363. This paper shows that the values predicted with the ANFIS, especially with the hybrid learning algorithm, can be used to predict the performance of the GCHP system quite accurately.

Available documents

Format PDF

Pages: 65-74

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: Modelling a ground-coupled heat pump system using adaptive neuro-fuzzy inference systems.
  • Record ID : 2008-0878
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 1
  • Publication date: 2008/01

Links


See other articles in this issue (16)
See the source