Performance Analysis of the Single Jet Air Curtain for Open Refrigerated Display Cabinet by Using Artificial Neural Network

Titariya, V. K.; Agarwal, Alka Bani

doi:10.18186/thermal.712636

Cited by 5 publications

(1 citation statement)

References 5 publications

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“…There are many factors which affect the efficiency of open refrigerators, such as the following: (1) Normally, open refrigerators require a temperature of 25 • C in the store and 60% humidity; (2) the wind of an air conditioner that blows into a refrigerator will reduce the efficiency of its air curtain; (3) customers picking products from inside the cabinet also reduce the efficiency of the air curtain; (4) as does the replenishment of goods by staff; and (5) something obstructing the returned air [19,20]. All of these uncontrollable factors affect the efficiency of the air curtain and directly affect compressor energy consumption [21,22]. This research presents the installation of an energy efficiency improvement solution in supermarkets by the use of a low-E glass door and a digital semi-hermetic compressor to solve the abovementioned uncontrollable factors [23,24].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Improvement Solutions for Supermarkets by Low-E Glass Door and Digital Semi-Hermetic Compressor

Saengsikhiao

Taweekun

2021

Energies

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This research presents an energy efficiency improvement solution for supermarkets with the use of low-E glass doors for open refrigerators and a digital semi-hermetic compressor to fix the speed of semi-hermetic compressors. The impact of a door’s installation causes its load to be reduced by 40%, and the compressor shuts down frequently, which decreases its lifetime. In order to ensure that energy-saving solutions do not affect maintenance costs, the installation of a digital semi-hermetic compressor is proposed to lower costs and save energy. Our economic results from tests carried out at a 3000 square meter supermarket, which was open from 6:00 am to 12:00 am and in which we installed 82 doors on 15 open refrigerators, showed a 1.1-year payback period with an energy saving rate of 192,220 kWh/year for store No.1 (R22) and in which we installed 80 doors on 15 open refrigerators, showed a 1.4-year payback period with an energy saving rate of 171,185 kWh/year for store No.2 (R404A). The energy-saving effects of the digital semi-hermetic compressor, which fixes the speed of the semi-compressor and solves the problem of impact from fridge door installation, showed a 2.9-year payback period with an energy saving rate of 26,890 kWh/year for store No.1 (R22) and showed a 2.9-year payback period with an energy saving rate of 26,571 kWh/year for store No.2 (R404A). The results of store No.1 (R22) and store No.2 (R404A) showed no differences. This research is an extension of an energy-saving project that can be carried out on a continuous basis, increasing the efficiency of energy use and being a sustainable source of energy conservation.

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Section: Introductionmentioning

confidence: 99%

Energy Efficiency Improvement Solutions for Supermarkets by Low-E Glass Door and Digital Semi-Hermetic Compressor

Saengsikhiao

Taweekun

2021

Energies

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Energy efficiency in the commercial sector. Thermodynamics fundamentals for the energy transition

Piselli,

Balocco,

Forastiere

et al. 2024

Energy Reports

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Experimental and numerical study of heat transfer and flow characteristics with different placement of the multi-deck display cabinet in supermarket

et al. 2021

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This work focuses on the heat transfer and flow characteristics with the different placement of the multi-deck display cabinet and tries to optimize the placement position of refrigerated display cabinet. First, the temperature distribution in a refrigerated display cabinet was experimentally investigated. The result showed that the food temperature in front is 3.6–4.8°C higher than back row of the same layer, and temperature fluctuation of 0.3–0.7°C less than the back row. Then, a three-dimensional numerical model of the display cabinet was established, and the k–ε model is employed to compare and analyze the heat transfer and air curtain characteristics. The results show that the placement methods have great influence on the performance of the display cabinet. The face-to-back placement method can acquire a better food refrigeration performance, and the food temperature of the face-to-back placement method is 0.3–0.5°C lower than that of the face-to-face placement method.

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Performance Analysis of the Single Jet Air Curtain for Open Refrigerated Display Cabinet by Using Artificial Neural Network

Cited by 5 publications

References 5 publications

Energy Efficiency Improvement Solutions for Supermarkets by Low-E Glass Door and Digital Semi-Hermetic Compressor

Energy Efficiency Improvement Solutions for Supermarkets by Low-E Glass Door and Digital Semi-Hermetic Compressor

Energy efficiency in the commercial sector. Thermodynamics fundamentals for the energy transition

Experimental and numerical study of heat transfer and flow characteristics with different placement of the multi-deck display cabinet in supermarket

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