A multi-stage down-draft evaporative cool tower for semi-enclosed spaces: Aerodynamic performance

Evyatar Erell; David Pearlmutter; Yair Etzion

doi:10.1016/j.solener.2007.10.010

A multi-stage down-draft evaporative cool tower for semi-enclosed spaces: Aerodynamic performance

Evyatar Erell, David Pearlmutter, Yair Etzion

Jacob Blaustein Institutes for Desert Research (BIDR)

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

28 Scopus citations

Abstract

A multi-stage down-draft evaporative cool tower (DECT) was developed as an improvement to a previously developed single-stage design. The new tower incorporates a secondary air inlet, added to reduce the water consumption required to produce a desired cooling output in a tower of given maximum cross-section and primary inlet geometry. The secondary air, which may be drawn from the interior space being chilled, is cooled by evaporation in the lower section of the tower. This paper reports on the results of experiments conducted to establish the aerodynamic performance of the design prior to installation of a water spraying system. Design of the water spraying system and experiments on cooling performance are discussed in a companion paper.

Original language	English
Pages (from-to)	420-429
Number of pages	10
Journal	Solar Energy
Volume	82
Issue number	5
DOIs	https://doi.org/10.1016/j.solener.2007.10.010
State	Published - 1 May 2008

Keywords

Airflow
Cool towers
Evaporative cooling

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Materials Science (all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solener.2007.10.010

Cite this

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abstract = "A multi-stage down-draft evaporative cool tower (DECT) was developed as an improvement to a previously developed single-stage design. The new tower incorporates a secondary air inlet, added to reduce the water consumption required to produce a desired cooling output in a tower of given maximum cross-section and primary inlet geometry. The secondary air, which may be drawn from the interior space being chilled, is cooled by evaporation in the lower section of the tower. This paper reports on the results of experiments conducted to establish the aerodynamic performance of the design prior to installation of a water spraying system. Design of the water spraying system and experiments on cooling performance are discussed in a companion paper.",

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AB - A multi-stage down-draft evaporative cool tower (DECT) was developed as an improvement to a previously developed single-stage design. The new tower incorporates a secondary air inlet, added to reduce the water consumption required to produce a desired cooling output in a tower of given maximum cross-section and primary inlet geometry. The secondary air, which may be drawn from the interior space being chilled, is cooled by evaporation in the lower section of the tower. This paper reports on the results of experiments conducted to establish the aerodynamic performance of the design prior to installation of a water spraying system. Design of the water spraying system and experiments on cooling performance are discussed in a companion paper.

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A multi-stage down-draft evaporative cool tower for semi-enclosed spaces: Aerodynamic performance

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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