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The Capacity of Low Temperaturę Ceiling Cooling Systems in Relations to the Properties of the Cooling Medium and Room Thermal Parameters (str. 28 nr. 7-8/52/21)
inż. Monika Majewska
dr hab. inż. prof. PŚ Tadeusz Orzechowski
  

Keywords: cooling panel, cooling capacity, surface temperature distribution, coolant heat balance, operating temperature

Abstract

The undertaken struggle with unfavorable weather changes is associated with the reduction of the consumption of non-renewable fuels. Their preferred replacement with renewable energy sources is a long-term process. Moreover, energy obtained in this way is more expensive. A good solution is a wider return to the abandoned energy-saving methods, which, although they are less effective and do not always cover all the designed needs, can work efficiently with an incomplete load on the system. They are suitable for hybrid solutions at peak loads. An example of such systems are passive, which include surface heating and cooling systems. The paper, based on the example of cooling ceilings, demonstrated the legitimacy of their use. A simple calculation algorithm is given, on the basis of which it is possible to calculate the local temperature distributions on the panel surface and the flowing coolant. Exemplary results are illustrated in the diagrams. From the analysis performed, the flow values can be determined to provide the currently required cooling capacity. The given relationships are a function of geometric parameters and therefore may also be helpful in the design of ceiling cooling panels.

 

 
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