Análise termodinâmica de um refrigerador funcionando com diferentes fluidos refrigerantes sintéticos
The objective of this work is to evaluate the performance of a steam compression refrigeration system using different synthetic refrigerant fluids. Following the successful implementation of the Montreal Protocol, which culminated in the elimination of CFCs (chlorofluorocarbons) which had a high...
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Formato: | Dissertação |
Idioma: | por |
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Brasil
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Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/24555 |
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Resumo: | The objective of this work is to evaluate the performance of a steam compression
refrigeration system using different synthetic refrigerant fluids. Following the successful
implementation of the Montreal Protocol, which culminated in the elimination of CFCs
(chlorofluorocarbons) which had a high potential for destruction of the ozone layer, it has been
found in recent years that the HCFCs that have emerged as an excellent alternative to CFCs
also harm the environment , its release into the atmosphere contributes to the greenhouse effect
causing global warming. For this reason, the Brazilian government has developed a Program
for the Elimination of HCFCs (hydrochlorofluorocarbons). This program is mainly aimed at
eliminating the consumption of HCFC-22 (R22), which is one of the refrigerants used in
refrigeration and air conditioning systems. In this context, the present work intends to make a
comparative thermodynamic study between two synthetic refrigerant fluids R-22 and R437a.
The refrigerator running on R437 was subjected to temperature lowering tests according to
ABNT standard for different thermal loads on the evaporator. The results obtained were
compared with the refrigerator running on R22 for the same thermal loads and show that the
performance of the refrigerator with R22 is higher than R437a. |
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