E3S Web Conf.
Volume 135, 2019Innovative Technologies in Environmental Science and Education (ITESE-2019)
|Number of page(s)||5|
|Section||Green Architecture and Sustainable Urban Design|
|Published online||04 December 2019|
Cold accumulators in air conditioning systems
Moscow State University of Civil Engineering, Yaroslavskoe sh., 26, Moscow, 129337, Russia
* Corresponding author: email@example.com
The appropriateness of using cold accumulators in air conditioning systems has been assessed. A cooling system with a storage tank is considered, in which ice is frozen on the outer surface of the evaporator heat exchange tubes. It is established that the accumulation of cold can lead to a significant reduction in cash costs. The analysis of the experience of using cold accumulators in air conditioning systems allows drawing the following conclusions: the most common solution for accumulating cold is the use of ice accumulators with ice freezing on the heat exchange surface of evaporators located in the storage tank; the melting mode of ice in ice accumulators with the chiller turned off is adopted in designing. The area of the heat exchange surface of the ice accumulator apparatus during cooling of ice water should be determined mainly depending on the conditions of ice melting; to freeze ice, it is necessary to increase the heat exchange surface area of the evaporator and lower the boiling point to minus 10...15 °C. Specific energy costs (kW of electricity per kW of cold) increase by 2 or more times, which reduces profit.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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