Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Experimental Study and Modeling of Ground-Source Heat Pumps with Combi-Storage in Buildings

Version 1 : Received: 13 April 2018 / Approved: 13 April 2018 / Online: 13 April 2018 (16:01:09 CEST)

A peer-reviewed article of this Preprint also exists.

El-Baz, W.; Tzscheutschler, P.; Wagner, U. Experimental Study and Modeling of Ground-Source Heat Pumps with Combi-Storage in Buildings. Energies 2018, 11, 1174. El-Baz, W.; Tzscheutschler, P.; Wagner, U. Experimental Study and Modeling of Ground-Source Heat Pumps with Combi-Storage in Buildings. Energies 2018, 11, 1174.

Abstract

There is a continuous growth of heat pump installations in residential buildings in Germany. The heat pumps were not only used for space heating and domestic hot water consumption but also to offer flexibility to the grid. the high coefficient of performance and the low cost of heat storages made the heat pumps an optimal candidate for the power to heat applications. Thus, several questions are raised about the optimal integration and control of the heat pump system with buffer storages to maximize its operation efficiency and minimize the operation costs. In this paper, an experimental investigation is performed to study the performance of a ground source heat pump (GSHP) with a combi-storage under several configurations and control factors. The experiments were performed on an innovative modular testbed that is capable of emulating a ground source to provide the heat pump with different temperature levels at different times of the day. Moreover, it can emulate the different building loads such as the space heating load and the domestic hot water consumption in real-time. The data gathered from the testbed and different experimental studies were used to develop a simulation model based on Modelica that can accurately simulate the dynamics of a GSHP in a building. The model was validated based on different metrics. Energetically, the difference between the developed model and the measured values was only 3.08\% and 4.18\% for the heat generation and electricity consumption, respectively.

Keywords

Modelica; testbed; control requirements; modeling; EMS; sensor placement;

Subject

Engineering, Energy and Fuel Technology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.