Systems for space heating and domestic hot water preparation based on the combination of solar collectors and heat pumps are currently more and more in demand and are already provided by several manufacturers. However, the integration of a heat pump into a solar combisystem is more complex than with other auxiliary systems, as also the heat source of the heat pump (evaporator cycle) can be connected to the whole system. Additionally to the standard heat sources ambient air and ground heat also the solar collectors or the buffer storage tank can be used as a source with different possibilities of hydraulic integrations. <\/p>\n\n
In order to ensure that the systems available on the market fulfil the goal of a maximum of savings of primary energy, it is urgently necessary to evaluate the quality of the available and installed systems in a scientific way and to compare them among each other and to standard system solutions. Thus undesirable developments and mistakes shall be avoided already at an early stage of the growing market, and optimized system solutions shall be presented. <\/p>\n\n
For that purpose the already existing system concepts are documented and analysed. The actual state of the art is determined by analysing the results of a field test, in which systems in real operation are evaluated. Besides system simulation models are developed, which are used to determine potentials for optimisations through variation of the basic parameters and to find optimised control strategies for such systems. Based on the experiences of the field test and the system simulations with the existing system concepts new, advanced concepts are developed theoretically. These concepts will be documented and simulated using system models and \u2013 if possible with a justifiable effort – also tested in one ore more of the monitored systems. <\/p>\n\n
A detailed analysis of the evaluated and simulated systems concerning characteristic energetic values (primary energy-, final energy-, useful energy-balances as well as efficiencies and seasonal performance factors) and an economic evaluation including a sensitivity analysis as well as a detailed documentation of practical experiences from the field tests will be the results available at the end of the project. These results shall be the basis of a focused and successful further development of solar combisystems with heat pumps.<\/p>\n","protected":false},"author":4,"featured_media":3374,"parent":0,"menu_order":0,"template":"","class_list":["post-3375","project","type-project","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\n