Field measurements and analyses for a hybrid system for snow storage/melting and air conditioning by using renewable energy

Hamada, Yusuke; Nakamura, Makoto; Kubota, Hideki

doi:10.1016/j.apenergy.2006.07.002

Cited by 37 publications

(9 citation statements)

References 7 publications

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“…Modeling analysis and simulation [24] Variable air volume (VAV)-air handling unit Active PCM-based thermal energy storage (TES) system incorporated with air-conditioning system achieves good thermal comfort and indoor air quality in buildings without sacrificing energy efficiency Experiment [25] District cooling system Active Ice storage system implemented with district cooling facility minimizes overall energy-cost issues related to buildings and conserve energy Simulation [26] District cooling system Active Improved thermophysical properties of PCMs in a cool TES system integrated with district cooling facility reduces chiller size, issues related to peak thermal load-shifts and costenergy management in buildings Experiment [27] Vertical ground source heat exchangers Active Cool TES integrated with earth heat exchangers and cryogenic cooling system achieve desired space cooling and energy savings Experiment [28] Solar energy is considered an intermittent source of heat, which has to be stored suitably in order to be reused when demand rises. Two important factors need to be considered for solar TES applications:…”

Section: Carbon-free Thermal Storage Systemsmentioning

confidence: 99%

Applications of Thermal Energy Storage Systems

Kalaiselvam

Parameshwaran²

2014

Thermal Energy Storage Technologies for Sustainability

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Section: Carbon-free Thermal Storage Systemsmentioning

confidence: 99%

Applications of Thermal Energy Storage Systems

Kalaiselvam

Parameshwaran²

2014

Thermal Energy Storage Technologies for Sustainability

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“…The ground can act as a heat source during the winter and as a heat sink during the summer. The interface between the thermo-active structures and the surrounding soil is subjected to heatingcooling cycles up to 40 °C [5][6][7][8][9]. Abuel-Naga et al [10] found that normally consolidated and lightly overconsolidated soft Bangkok clay contracted upon heating, while heavily overconsolidated samples dilated.…”

Section: Introductionmentioning

confidence: 99%

Thermally induced pore water pressure of reconstituted London clay

2019

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Different forms of thermo-active structures have been proposed as a way of making use of the ground temperature to achieve renewable low-carbon heating and cooling in civil engineering construction. Such structures comprise piles, retaining walls or tunnel linings, and are used both as structural components and as conduits for utilising geothermal energy. In the scenario of the underground space in London, it is the thermo-active piles that have received most attention. However, little experimental evidence exists on the thermal behaviour of London clay to aid the design of thermo-active structures. This paper presents advanced laboratory testing on the reconstituted London clay to characterise the effect of temperature on its mechanical behaviour. Particular emphasis is given to thermally induced pore water pressures, as their evolution is not well understood. Tests are conducted in a temperature-controlled isotropic cell developed at Imperial College London. The emphasis of the current paper is on the temperature-based calibrations of different transducers. Soil specimens are isotropically consolidated and then subjected to undrained heating-cooling in the temperature range of 21 to 37 °C. Results obtained are compared with an existing laboratory study on another type of clay.

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“…About 122,500 m 3 of snow, including the natural snow from streets and squares and the artificial snow made from snow guns or water spraying, was stored for providing the cooling energy that accounting for 43.6%~66.8% of the total cooling demand [5]. Hamada Y et al investigated the effectiveness of a hybrid system for snow storage/melting and air conditioning on energy conservation and environmental protection through field measurements and numerical analyses [6]. Ground source heat pumps with earth heat exchangers or ground water offer a favorable cooling potential.…”

Section: Introductionmentioning

confidence: 99%

A seasonal cold storage system based on separate type heat pipe for sustainable building cooling

Yan

Shi

et al. 2016

Renewable Energy

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a b s t r a c tSeasonal cold storage is a high-efficient and environmental-friendly technique that uses the stored natural cold energy in winter (e.g., snow, ice or cold ambient air) for free-cooling in summer. This paper presents a seasonal cold storage system that uses separate type heat pipes to charge the cold energy from ambient air in winter automatically, without consuming any energy. The charged cold energy is stored in the form of ice in an insulated tank and is extracted as chilled water for cooling supply in summer, which help to reduce the chiller running time and reduce the associated electricity consumption and greenhouse gas emission significantly. A quasi-steady two-dimensional mathematical model of the system is developed for characterizing the dynamic performance of ice growth (i.e., cold charging). The model is validated using the field measurement data from an ice charging experiment conducted in Beijing. The impacts of various affecting factors, including the weather data and the key parameters of heat pipes, on the charging performance of the cold storage system are analyzed. The effectiveness and sustainability of the proposed system for cooling are demonstrated through a case study of a kindergarten building in Beijing.

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Field measurements and analyses for a hybrid system for snow storage/melting and air conditioning by using renewable energy

Cited by 37 publications

References 7 publications

Applications of Thermal Energy Storage Systems

Applications of Thermal Energy Storage Systems

Thermally induced pore water pressure of reconstituted London clay

A seasonal cold storage system based on separate type heat pipe for sustainable building cooling

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