Feasibility of thermal load control from electrochromic windows for ground coupled heat pump optimization

Dacquay, Connor; Fujii, Hikari; Lohrenz, Ed; Holländer, Hartmut

doi:10.1016/j.jobe.2021.102339

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…When exposed to different levels of light, the EC devices will change different colors to block sunlight. [82,[111][112][113][114][115][116][117][118][119][120] EC energy storage device can display the energy storage status in real-time through color changes. With its adjustability, an energy storage display can achieve customized display based on various environmental factors, thereby enhancing the user experience.…”

Section: Applicationsmentioning

confidence: 99%

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Recent Advance in Electrochromic Materials and Devices for Display Applications

Wang,

Zhu,

Zhuang

et al. 2024

ChemPlusChem

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Electrochromic devices (ECDs) possess the performance advantages in terms of color adjustability, low power consumption, and visual friendliness, emerging as one of the ideal candidates for energy‐efficient smart windows, next‐generation displays, and wearable electronics. The optical and electrical characteristics of ECDs could be adjusted by modifying the materials or structure of devices. This review summarizes the recent developments of innovative technologies and key materials of ECDs for display applications, highlighting the key issues and the development trends in this area.

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Section: Applicationsmentioning

confidence: 99%

“…The application of EC technology in smart glasses can also attenuate direct sunlight. When exposed to different levels of light, the EC devices will change different colors to block sunlight [82,111–120] …”

Section: Ec Displaysmentioning

confidence: 99%

Recent Advance in Electrochromic Materials and Devices for Display Applications

Wang,

Zhu,

Zhuang

et al. 2024

ChemPlusChem

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show abstract

“…Y. Li et al [13] explored the mechanism of temperature change and the recovery of the soil under intermittent operations through an experiment, and it was found that the intermittent operation mode of daytime operation and night shutdown was beneficial for soil temperature recovery, but in the study the groundwater was assumed to be stagnant; therefore, its possible ability to mitigate the thermal imbalance was ignored. C. Dacquay et al presented a novel design in which electrochromic glass window controls were integrated with a GCHP system for long-term optimization and sustainability, but the level of tint variation limited its further development [14].…”

Section: Introductionmentioning

confidence: 99%

Research on the Application of Fracture Water to Mitigate the Thermal Imbalance of a Rock Mass Associated with the Operation of Ground-Coupled Heat Pumps

Luo

Pei

et al. 2022

Energies

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Shallow geothermal energy is a clean and effective form of energy that can overcome the problems associated with the depletion of carbon-based energy carbon emissions. Due to the special hydrogeological conditions in karst regions, the heat transfer between heat exchange boreholes and the ground formation is a complicated, multi-physical process. The abundant groundwater flow plays an important role in the heat transfer process, and even presents an opportunity to mitigate the heat imbalance during the long term operation of ground-coupled heat pumps (GCHP). In this study, both laboratorial experiments and numerical simulations were performed to analyze the mechanism that shows how fracture water impacts on heat capacity and the thermal imbalance of the energy storage rock mass. The results showed that the overall temperature fluctuation of the rock mass was reduced by the fracture water, and the temperature curve with time became gentler, which means in practice that the heat imbalance in the rock mass could be delayed. However, the temperature contour map showed that the impact of the fracture water flow was constrained in the nearby areas and decreased obviously with distance. The temperature field was also dragged along the direction of the fracture water flow. During the shutdown period, the fracture water significantly enhanced the thermal recovery ability of the rock mass. The results will assist in further understanding the mechanism of heat transfer and energy balance in a rock mass with fracture water flow. It is proposed that the U pipes should be located at zones with abundant fracture water if the construction condition permits. U pipes that are near the fractures should share more of the load or a denser layout could be possible as their heat transfer capacity is improved by the water flow.

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Application of cold hot electric combined heating pump system in ecological environment building design

He,

Peng,

Pan

et al. 2024

THERM SCI

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Aiming at energy saving and consumption reduction, this project applies the technology of combined heating and cooling heat pump to ecological building design. The combined hot and cold system is an integrated control system, which utilizes the solar system and heat pump technology (air source heat pump, water source heat pump) to complement each other based on changes in the outdoor environment, thus providing users with hot water heating and cold water cooling in winter. After installing a new heating and cooling system, coupled with well-equipped automatic control equipment, the heating coal consumption has been significantly reduced, and the emissions of CO2, SO2 dust, and other pollutants have also been correspondingly reduced. Compared with the cold and hot split supply system using electric refrigeration and thermal heating, the winter and summer sharing of the cold and hot combined supply device not only improves energy utilization efficiency, but also saves investment in heat source construction, thereby reducing costs and environmental pollution.

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Feasibility of thermal load control from electrochromic windows for ground coupled heat pump optimization

Cited by 3 publications

References 13 publications

Recent Advance in Electrochromic Materials and Devices for Display Applications

Recent Advance in Electrochromic Materials and Devices for Display Applications

Research on the Application of Fracture Water to Mitigate the Thermal Imbalance of a Rock Mass Associated with the Operation of Ground-Coupled Heat Pumps

Application of cold hot electric combined heating pump system in ecological environment building design

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