Title: Impact of storage tank control and hydraulic configuration on solar heat pump performance
Authors: Veeken, John
Verheyen, Jan
Sourbron, Maarten
Issue Date: 12-Dec-2014
Publisher: University of Liège
Host Document: Proceedings of the 9th International Conference on System Simulation in Buildings (SSB2014) pages:1-14
Conference: International Conference on System Simulation in Buildings (SSB2014) edition:9 location:Liège, Belgium date:10-12 December 2014
Abstract: For a solar heat pump system, combining solar thermal collectors and a heat pump, with a combined storage tank, the system performance is evaluated for different hydraulic configurations and controls of the storage tank. The results show the importance of an adequate hydraulic configuration and control of the storage tank to support the process of combined heat production by the heat pump and solar thermal collectors and heat distribution to space heating and domestic hot water. Adapting demand side temperature levels and correctly inserting the produced heat from heat pump and solar thermal collectors in the storage tank increases the system efficiency substantially. The Seasonal Performance Factor (SPF) changed from 3.72 to 5.56 by changing storage tank sensor positions and set points of the heat pump control, correctly addressing the produced heat to storage tank levels and changing the positions from where the stored heat is extracted from storage. The SPF increase is caused by an augmented share of solar energy in the overall system balance, an increased heat pump efficiency and a reduced storage thermal losses. This work concludes that the storage tank is a crucial factor in these system types with two collaborating heat sources.
Description: geen ISBN/ISSN
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Mechanical Engineering Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver
Technologiecluster Werktuigkundige Industriële Ingenieurstechnieken

Files in This Item:
File Description Status SizeFormat
P71v2.pdf Published 1390KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.