Publications Scientifiques

[ Article ] Cooling mode experimental analysis of a direct expansion geothermal heat pump with a control depending on the discharge pressure

Date de soumission: 27-01-2021
Année de Publication: 2019
Entité/Laboratoire Autres laboratoires
Document type : Article
Discipline(s) : Energie
Titre Cooling mode experimental analysis of a direct expansion geothermal heat pump with a control depending on the discharge pressure
Auteurs Fannou Jean-Louis Comlan [1], Lamarche Louis [2], SEMASSOU GUY CLARENCE [3], Stanislaw Kajl [4],
Journal: Applied Thermal Engineering
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 160
DOI: https://doi.org/10.1016/j.applthermaleng.2019.113955
Resume This work presents an experimental study of a direct expansion geothermal heat pump in cooling mode. The three geothermal loops are installed in parallel. To improve the system performance, a specific control depending on the discharge pressure was implemented to select the geothermal loops to serve as condensers. The fundamental question is whether this particular heat pump can operate continuously? So the goal was to determine the operating limits in order to develop the best strategies for the most efficient use of this recent geothermal heat pump. The analysis of experimental results enabled us to reach a maximum of 12 h continuous for this heat pump with the implemented control. During this optimal period of operation, the coefficient of performance reaches an average of 2.60 with maximum values of up to 3.40. The average cooling capacity is 9.60 kW for an average ground heat rejection rate of about 290.8W m−1. Beyond this period, the performance of the DX GHP decreases and some phenomena like the oscillation loop, soil saturation, were identified and presented. The experimental results allowed also generally reveal that the controls implemented promotes geothermal loops cooling and helps increase the performance of the DX GHP. This article represents a logical continuation of our previous published study on heating mode.
Mots clés Direct expansion Heat pump Cooling Operating limit Soil saturation
Pages 1 - 16
Fichier

Publications par entité

  • Centre de Formation et de Recherche en matière de Population (CEFORP) (21)
  • Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED) (43)
  • Chaire Internationale en Physique Mathématique et Applications (CIPMA-Chaire UNESCO) (45)
  • Ecole Doctorale Pluridisciplinaire <<Espaces, Culture et Développement>> (0)
  • Ecole Nationale d'Administration et de Magistrature (ENAM) (72)
  • Ecole Nationle d'Economie Appliquée et de Management (88)
  • Ecole Normale Supérieure (35)
  • Ecole Polytechnique d'Abomey-Calavi (EPAC) (1123)
  • Faculté de droit et de Science Politique (FADESP) (109)
  • Faculté des Lettres et Sciences Humaines (FLASH) (1376)
  • Faculté des Lettres, Langues, Arts et Communications (FLLAC) (0)
  • Faculté des Sciences Agronomiques (1906)
  • Faculté des Sciences de la Santé (FSS) (2213)
  • Faculté des Sciences Economiques et de Gestion (FASEG) (191)
  • Faculté des Sciences et Techniques (FAST) (1081)
  • Faculté des Sciences Humaines et Sociales (FASHS) (70)
  • Institut de Formation et de Recherche en Informatique (IFRI) (76)
  • Institut de Géographie de l'Aménagement du territoire et de l'Environnement (IGATE) (0)
  • Institut de Mathématiques et de Sciences Physiques (IMSP) (124)
  • Institut National de l'Eau (INE) (28)
  • INSTITUT NATIONAL DE LA JEUNESSE DE L’EDUCATION PHYSIQUE ET SPORT(INJEPS) (241)
  • Institut National des Métiers d'Art d'Archéologie et de la Culture (INMAAC) (11)
  • Institut National Médico Sanitaire ( INMeS) (0)
  • Institut Régional de Santé Publique (IRSP) (84)

Publications par sexe

  • Femme( 1394 )
  • Homme (