Experimental investigations of the performance of a solar-ground source heat pump system operated in heating modes

Yang, Weibo; Sun, Lulu; Chen, Yongping

doi:10.1016/j.enbuild.2014.12.027

Cited by 96 publications

(21 citation statements)

References 38 publications

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“…Yang et al [7] experimental studies and numerical simulation on the performance of a solar-ground source heat pump system operated in different heating modes were presented. The results indicate that the excess solar energy collected during day can be stored in ground by the GHE to improve the operation performance of GSHP during night.…”

Section: Introductionmentioning

confidence: 99%

The influence of the solar-ground heat pump system on the ground temperature in the boreholes and in their vicinity – study based on experimental data

Rynkowski

2019

E3S Web Conf.

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The paper presents the results of observations of a brine-to-water a solar-assisted ground-source heat pump (SAGSHP) system located in building “INNO–EKO–TECH Innovative Research and Didactic Center for Alternative Energy Sources, Energy Efficient Construction and Environmental Protection” in the Bialystok University of Technology, north-east Poland. As the heat source of the system are three vertical ground heat exchanger (VGHE), length 70, 85 and 100 m. Independently, there are three control probes to monitor the temperature in the vicinity of VGHEs. The experimental results indicate that soil temperature raises from 0.2°C for 5 m distance, up to 0.5°C for 5 m distance.

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Section: Introductionmentioning

confidence: 99%

The influence of the solar-ground heat pump system on the ground temperature in the boreholes and in their vicinity – study based on experimental data

Rynkowski

2019

E3S Web Conf.

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“…In [17], a carbon dioxide direct-expansion heat pump was investigated in different operating conditions. Yang et al [18] studied the performance of solar ground source heat pump in dual heat source coupling modes to optimize the average system COP. Furthermore, Liu et al [19] experimentally tested a gas engine driven heat pump for different operation modes.…”

Section: Introductionmentioning

confidence: 99%

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

2018

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There is a continuous growth of heat pump installations in residential buildings in Germany. The heat pumps are 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 one of the optimal candidates for the power to heat applications. Thus, several questions are raised about the optimal integration and control of 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% and 4% for the heat generation and electricity consumption, respectively.

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“…In [15], a carbon dioxide direct-expansion heat pump was investigated in different operating conditions. [16] studied the performance of solar ground source heat pump in dual heat source coupling modes to optimize the average system COP. Furthermore, [17] experimentally tested a gas engine driven heat pump for different operation modes.…”

Section: Introductionmentioning

confidence: 99%

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

El-Baz¹,

Tzscheutschler²,

Wagner³

2018

Preprint

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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.

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Experimental investigations of the performance of a solar-ground source heat pump system operated in heating modes

Cited by 96 publications

References 38 publications

The influence of the solar-ground heat pump system on the ground temperature in the boreholes and in their vicinity – study based on experimental data

The influence of the solar-ground heat pump system on the ground temperature in the boreholes and in their vicinity – study based on experimental data

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

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

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