Improving the Efficiency of Cold Production

This is continuation of author’s works in energy saving area; the work’s aim is to identify opportunities for energy cost reducing when cold producing by vapor compression chilling machine with variable cooling load. Have been considered schemes, in which the stored cold compensates the cooling load’s peaks. Have been presented the results of thermodynamic calculations, which show the possible ranges of chilling machine performance changing while working together with a cold accumulator. As a device for cold reserve storage have been considered an ice accumulator having short, not exceeding a day “charge-discharge” cycle, and a seasonal cold accumulator charged during the winter.

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Capillary Scanning of a Porous Matrix. Experimental Techniques and Processing of its Results

Sintsov¹,

Девисилов²

2019

Safety in Technosphere

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The article presents an analysis of the possibilities of the previously unused method for the experimental study of porous permeable materials and the determination of their structural characteristics. The purpose of the experiment is to determine the geometric parameters of the porous matrix, which integrates the characteristics of the porous material. An example of analytical scanning of a porous structure is considered. A review of existing experimental methods is given. A scheme of the experimental setup, methods for conducting a capillary experiment and processing the data obtained are proposed. As an example, a mathematical model of the experiment is used, illustrating the possible results of the study of a porous sample. It is shown how the results of experiments are transformed into a porous matrix and are interpreted as its capillary scanning. It is proved that this model of porous structure can be used as a starting position in the mathematical calculations of the processes occurring in porous structures.

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Improving the Efficiency of Cold Production

Cited by 3 publications

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Analyzes of Cold Accumulation

Analyzes of Cold Accumulation

Efficiency of Cold Accumulation and Chilling Machine Usage

Capillary Scanning of a Porous Matrix. Experimental Techniques and Processing of its Results

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