| Titre : | Capacity control in ground source heat pump systems part II: : Comparative analysis between on/off controlled and variable capacity systems (2012) |
| Titre original : | Régulation de la puissance des pompes à chaleur sol-eau. Partie II : analyse comparative des systèmes régulés de façon tout ou rien et des systèmes à puissance variable |
| Auteurs : | Hatef Madani, Auteur ; Joachim Claesson, Auteur ; Per Lundqvist, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 34 N° 8, Décembre 2011) |
| Article en page(s) : | pp. 1934–1942 |
| Note générale : | Génie mécanique |
| Langues : | Anglais |
| Tags : | Heat pump Control Modelling Simulation Variable speed |
| Résumé : | In the present paper, as the second part of two, modeling and simulation was carried out for a Ground Source Heat Pump (GSHP) system in the presence of all the most important interacting sub-systems such as building, ground heat source, electrical auxiliary heater, and the heat pump unit in order to make a fair and comprehensive comparison between the annual performance of on/off controlled and variable capacity systems. The annual modeling showed that dimensioning of the on/off controlled GSHP based on the peak heat demand of the building plays a significant role when the two control strategies are compared: if the on/off controlled GSHP is dimensioned to cover only 55% of the peak heat demand of the building, the electrical auxiliary, which then covers about 10% of the annual heating demand of the building, makes the SPF of the on/off controlled GSHP to be lower than the one of the variable speed system. On the contrary, when the on/off controlled system is dimensioned to cover more than 65% of the building’s peak heat demand, i.e. more than 95% of the annual heat demand of the building, there is no considerable difference between the SPFs of the on/off controlled and variable capacity systems. |
| ISSN : | 0140-7007 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700711001186 |
