Hybrid ground-source heat pump system with active air source regeneration

Allaerts, Koen; Coomans, Mathias; Salenbien, Robbe

doi:10.1016/j.enconman.2014.11.009

Cited by 60 publications

(23 citation statements)

References 13 publications

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“…However, so many buildings are in heating-dominated or cooling-dominated areas in China, resulting in that the heat extracted from the soil and rejected to it are not necessarily equal [6], therefore some bottlenecks came up, like soil thermal imbalance leads to soil temperature change, and further, leads to the COP deterioration of GSHP system and heat pump unit [7], especially in heating-dominated climate zones [8], where the soil temperature declined gradually year after year due to imbalance energy loads. To make the soil thermal balance and keep the GSHP system and heat pump unit run at a high COP level, a makeup heat is needed to input to the soil [9]. According to this concept, solar seasonal storage coupled with GSHP system will http://dx.doi.org/10.1016/j.enconman.2015.07.037 0196-8904/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 98%

Performance evaluation before and after solar seasonal storage coupled with ground source heat pump

Zhu

Wang

Liu

2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 98%

Performance evaluation before and after solar seasonal storage coupled with ground source heat pump

Zhu

Wang

Liu

2015

Energy Conversion and Management

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“…The performance characteristics of SAGSHP greenhouse heating system with GHE using exergy analysis method were investigated in [17]. Allaerts et al [18] compared a hybrid ground-source heat pump system with dual borefield and active air-source regeneration to a standard single borefield groundsource heat pump system. Their results showed size-reduction of 47% in the hybrid configuration compared to a single borefield.…”

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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“…Many new buildings in China have been constructed with hybrid-GCHP systems designed to minimize underground thermal imbalance [13][14][15]. In cold regions, boilers or solar systems are often applied to compensate for hybrid-GCHP heating operation [1,[16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Study on the Optimizing Operation of Exhaust Air Heat Recovery and Solar Energy Combined Thermal Compensation System for Ground-Coupled Heat Pump

Wang

Peng

et al. 2017

International Journal of Photoenergy

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This study proposed an exhaust air heat recovery and solar energy combined thermal compensation system (ESTC) for ground-coupled heat pumps. Based on the prediction of the next day’s exhaust air temperature and solar irradiance, an optimized thermal compensation (OTC) method was developed in this study as well, in which the exhaust air heat recovery compensator and solar energy compensator in the ESTC system run at high efficiency throughout various times of day. Moreover, a modified solar term similar days group (STSDG) method was proposed to improve the accuracy of solar irradiance prediction in hazy weather. This modified STSDG method was based on air quality forecast and AQI (air quality index) correction factors. Through analyzing the operating parameters and the simulation results of a case study, the ESTC system proved to have good performance and high efficiency in eliminating the heat imbalance by using the OTC method. The thermal compensation quantity per unit energy consumption (TEC) of ESTC under the proposed method was 1.25 times as high as that under the traditional operation method. The modified STSDG method also exhibited high accuracy. For the accumulated solar irradiance of the four highest daily radiation hours, the monthly mean absolute percentage error (MAPE) between the predicted values and the measured values was 6.35%.

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Hybrid ground-source heat pump system with active air source regeneration

Cited by 60 publications

References 13 publications

Performance evaluation before and after solar seasonal storage coupled with ground source heat pump

Performance evaluation before and after solar seasonal storage coupled with ground source heat pump

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

Study on the Optimizing Operation of Exhaust Air Heat Recovery and Solar Energy Combined Thermal Compensation System for Ground-Coupled Heat Pump

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