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Évaluation et comparaison des performances du réfrigérateur
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ISBN10: 6207717945
ISBN13: 9786207717941
Publisher: Editions Notre Savoir
Published: Jun 27 2024
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786207717941
Publisher: Editions Notre Savoir
Published: Jun 27 2024
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: French
Un système de réfrigération contient de nombreux sous-systèmes destinés à des fins différentes et l'isolation est un sous-système important dans le système de réfrigération. Le réfrigérateur maintient une température plus basse dans l'espace réfrigéré que dans l'environnement. Comme il existe un gradient de température entre l'air ambiant et l'espace réfrigéré, la chaleur circule de la température élevée vers la température basse et comme l'espace réfrigéré est maintenu à basse température, la chaleur s'engouffre de l'environnement vers l'espace réfrigéré. Par conséquent, afin d'arrêter complètement ce flux de chaleur de l'air ambiant vers l'espace réfrigéré, un matériau isolant est fourni autour de l'espace réfrigéré dans le réfrigérateur, cette isolation réduisant l'afflux de chaleur.L'isolation étant un sous-système important, elle doit être efficace, car si l'isolation n'est pas efficace, la chaleur s'engouffre dans l'espace réfrigéré et le réfrigérateur doit travailler pour évacuer cette chaleur précipitée dans l'espace réfrigéré. Il en résulte une augmentation du travail du compresseur pour une même charge, ce qui diminue le COP du réfrigérateur.
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