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Advisor(s)
Abstract(s)
The vertical open refrigerated display cabinets suffer alterations of their thermal performance and energy
efficiency due to variations of ambient air conditions. The air curtain provides an aerothermodynamics
insulation effect that can be evaluated by the thermal entrainment factor calculation as an engineering
approximation or by the calculus of all sensible and latent thermal loads. This study presents the variation
of heat transfer rate and thermal entrainment factor obtained through experimental tests carried
out for different ambient air conditions, varying air temperature, relative humidity, velocity and its
direction relatively to the display cabinet frontal opening. The thermal entrainment factor are analysed
and compared with the total sensible and latent heats results for the experimental tests. From an
engineering point of view, it is concluded that thermal entrainment factor cannot be used indiscriminately,
although its use is suitable to design better cabinet under the same climate class condition.
Description
Keywords
Thermal entrainment factor Refrigerated display cabinet Experimental data
Citation
Publisher
Elsevier