Hybrid solar receiver as a source of high-temperature medium for an absorption chiller supply

This article discusses the problems related with the cold production, i.e. energy efficiency of the process. The idea of solar cooling systems has been presented as the solution of the problem of big electricity demand. The paper discusses the principle of the operation of absorption chillers. Disad...

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Bibliographic Details
Main Authors: Przenzak, Estera, Filipowicz, Mariusz
Format: Conference Proceeding
Language:English
Subjects:
Absorption
Chillers
Concentrators
Cooling
Cooling systems
Efficiency
Electric power demand
Electricity consumption
Heat
Mineral wool
Power efficiency
Solar collectors
Solar cooling
Solar radiation
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Summary:This article discusses the problems related with the cold production, i.e. energy efficiency of the process. The idea of solar cooling systems has been presented as the solution of the problem of big electricity demand. The paper discusses the principle of the operation of absorption chillers. Disadvantages and advantages of the solar cooling systems were discussed. The installation for manufacturing high-temperature heat based on solar collectors and concentrator of solar radiation constructed in AGH in Cracow has been presented. This installation is a first stage of projected, complete solar cooling system. The special attention is paid to the dedicated solar high-temperature heat receiver as a most important element of the system. The achieved values of temperature, power and efficiency depending on the working medium flow has been presented and discussed. The intensity of solar radiation during the measurements has been taken into account. Two versions of heat receiver were investigated: non-insulated and insulated with mineral wool. The obtained efficiency of the heat receiver (less than 30%) is not satisfactory but possibility of improvements exist.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201611402100