Performance improvement of horizontal evaporator-condenser desalination units

S. Sideman; D. Moalem; R. Semiat

doi:10.1016/S0011-9164(00)80319-7

Performance improvement of horizontal evaporator-condenser desalination units

S. Sideman^*, D. Moalem, R. Semiat

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

An experimental work, aimed at appraising the authors' theoretical analysis of the simultaneous film evaporation outside and condensation inside horizontal tubes, is presented. The data indicate that for Re_N > 150, the laminar flow model must be modified to account for ripples and waves caused by the drops falling down on the tubes. The effects of Re_Nand ΔT on the overall transfer coefficient are very small. The effect of T_υ is small, particularly in the presence of air. The predicted effects of utilizing non-circular conduits is validated, and a 20% increase in the overall transfer coefficient was measured for elongated elliptical conduits.

Original language	English
Pages (from-to)	221-233
Number of pages	13
Journal	Desalination
Volume	21
Issue number	2
DOIs	https://doi.org/10.1016/S0011-9164(00)80319-7
State	Published - Jul 1977
Externally published	Yes

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title = "Performance improvement of horizontal evaporator-condenser desalination units",

abstract = "An experimental work, aimed at appraising the authors' theoretical analysis of the simultaneous film evaporation outside and condensation inside horizontal tubes, is presented. The data indicate that for ReN > 150, the laminar flow model must be modified to account for ripples and waves caused by the drops falling down on the tubes. The effects of ReNand ΔT on the overall transfer coefficient are very small. The effect of Tυ is small, particularly in the presence of air. The predicted effects of utilizing non-circular conduits is validated, and a 20% increase in the overall transfer coefficient was measured for elongated elliptical conduits.",

author = "S. Sideman and D. Moalem and R. Semiat",

year = "1977",

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AU - Moalem, D.

AU - Semiat, R.

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AB - An experimental work, aimed at appraising the authors' theoretical analysis of the simultaneous film evaporation outside and condensation inside horizontal tubes, is presented. The data indicate that for ReN > 150, the laminar flow model must be modified to account for ripples and waves caused by the drops falling down on the tubes. The effects of ReNand ΔT on the overall transfer coefficient are very small. The effect of Tυ is small, particularly in the presence of air. The predicted effects of utilizing non-circular conduits is validated, and a 20% increase in the overall transfer coefficient was measured for elongated elliptical conduits.

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