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Mostrando ítems 21-30 de 1933
Two-phase flow patterns and pressure drop inside horizontal tubes containing twisted-tape inserts
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
This paper presents an experimental study on two-phase flow patterns and pressure drop of R134a inside a 15.9 mm ID tube containing twisted-tape inserts. Experimental results were obtained in a horizontal test section for ...
Saturated flow boiling heat transfer and critical heat flux in small horizontal flattened tubes
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
This paper presents experimental results for flow boiling heat transfer coefficient and critical heat flux (CHF) in small flattened tubes. The tested flattened tubes have the same equivalent internal diameter of 2.2 mm, ...
Two-phase flow frictional pressure drop prediction in helical coiled tubes
(Pergamon-Elsevier Science Ltd, 2020-12)
Based on the construction of different experimental databases, the frictional pressure drop in helical tubes for single-phase and water-steam two-phase flow was analyzed empirically. The aim of the present study is to ...
Pressure drop correlation for oil-refrigerant R134a mixture flashing flow in a small diameter tube
(Elsevier B.V., 2009-05-01)
This paper presents an experimental investigation of the ester oil ISO VG10/refrigerant R134a mixture flashing flow in a 6.0 m long, 3.22 mm ID tube, which is one of the primary steps towards the construction of a methodology ...
Pressure drop correlation for oil-refrigerant R134a mixture flashing flow in a small diameter tube
(Elsevier B.V., 2009-05-01)
This paper presents an experimental investigation of the ester oil ISO VG10/refrigerant R134a mixture flashing flow in a 6.0 m long, 3.22 mm ID tube, which is one of the primary steps towards the construction of a methodology ...
Simulação numérica de trocadores de calor multitubulares equipados com fitas helicoidais externamente aos tubos
(1998-03-01)
Classical shell-and-tube heat exchangers are usually equipped with segmental baffles. These baffles serve two basic functions: (a) they provide tube supports, thereby preventing or reducing mechanical problems, such as ...
Simulação numérica de trocadores de calor multitubulares equipados com fitas helicoidais externamente aos tubos
(1998-03-01)
Classical shell-and-tube heat exchangers are usually equipped with segmental baffles. These baffles serve two basic functions: (a) they provide tube supports, thereby preventing or reducing mechanical problems, such as ...