Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems

Naef Qasem; Binash Imteyaz; M. A. Antar

doi:10.1115/IMECE201667985

Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems

Naef Qasem, Binash Imteyaz, M. A. Antar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Scopus citations

Abstract

Humidification dehumidification process is an attractive small scale water desalination technique in which desalinated water is produced by mimicking the nature's water cycle. Various modifications to the basic HDH system can be vital in improving the productivity and reducing the production cost of the fresh water. In this study, a closed-air-open-water waterheated (CAOW-WH) cycle and a closed-air-open-water airheated (CAOW-AH) cycle are modeled and optimized. Effects of mass flow ratio, humidifier and dehumidifier effectiveness, relative humidity, top and bottom temperatures (main concern of study) on the gain output ratio (GOR), the recovery ratio (RR), entropy generation in the system have been analyzed and presented. It has been observed that an optimal mass flow ratio exists for both the cycles, which maximizes the GOR of the system. Moreover, effectiveness of the humidifier and the dehumidifier is an important parameter, which determines the productivity of the systems. Furthermore, a higher GOR can be obtained at low T_min and high T_max and at high T_min and low T_max for systems heated by a water heater, whereas the GOR of the air heated HDH system increases with increasing both the T_min and the T_max for values of humidifier and dehumidifier effectiveness of 0.8. This study provide extended design charts for building an optimum HDH system to produce a predetermined rate of desalinated water.

Original language	English
Title of host publication	Energy
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791850589
DOIs	https://doi.org/10.1115/IMECE201667985
State	Published - 2016

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume	6A-2016

Bibliographical note

Funding Information:
The authors acknowledge King Fahd University of Petroleum and Minerals (KFUPM) for supporting this work.

Publisher Copyright:
Copyright © 2016 by ASME.

Keywords

Dehumidifier
Desalination
HDH
Humidifier
Optimization

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/IMECE201667985

Cite this

Qasem, N., Imteyaz, B., & Antar, M. A. (2016). Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems. In Energy (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 6A-2016). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201667985

@inproceedings{180816c35428483f850b01146c0e5729,

title = "Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems",

abstract = "Humidification dehumidification process is an attractive small scale water desalination technique in which desalinated water is produced by mimicking the nature's water cycle. Various modifications to the basic HDH system can be vital in improving the productivity and reducing the production cost of the fresh water. In this study, a closed-air-open-water waterheated (CAOW-WH) cycle and a closed-air-open-water airheated (CAOW-AH) cycle are modeled and optimized. Effects of mass flow ratio, humidifier and dehumidifier effectiveness, relative humidity, top and bottom temperatures (main concern of study) on the gain output ratio (GOR), the recovery ratio (RR), entropy generation in the system have been analyzed and presented. It has been observed that an optimal mass flow ratio exists for both the cycles, which maximizes the GOR of the system. Moreover, effectiveness of the humidifier and the dehumidifier is an important parameter, which determines the productivity of the systems. Furthermore, a higher GOR can be obtained at low Tmin and high Tmax and at high Tmin and low Tmax for systems heated by a water heater, whereas the GOR of the air heated HDH system increases with increasing both the Tmin and the Tmax for values of humidifier and dehumidifier effectiveness of 0.8. This study provide extended design charts for building an optimum HDH system to produce a predetermined rate of desalinated water.",

keywords = "Dehumidifier, Desalination, HDH, Humidifier, Optimization",

author = "Naef Qasem and Binash Imteyaz and Antar, {M. A.}",

note = "Funding Information: The authors acknowledge King Fahd University of Petroleum and Minerals (KFUPM) for supporting this work. Publisher Copyright: Copyright {\textcopyright} 2016 by ASME.",

year = "2016",

doi = "10.1115/IMECE201667985",

language = "English",

series = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Energy",

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Qasem, N , Imteyaz, B & Antar, MA 2016, Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems. in Energy. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 6A-2016, American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201667985

Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems. / Qasem, Naef ; Imteyaz, Binash ; Antar, M. A.
Energy. American Society of Mechanical Engineers (ASME), 2016. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 6A-2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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PY - 2016

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N2 - Humidification dehumidification process is an attractive small scale water desalination technique in which desalinated water is produced by mimicking the nature's water cycle. Various modifications to the basic HDH system can be vital in improving the productivity and reducing the production cost of the fresh water. In this study, a closed-air-open-water waterheated (CAOW-WH) cycle and a closed-air-open-water airheated (CAOW-AH) cycle are modeled and optimized. Effects of mass flow ratio, humidifier and dehumidifier effectiveness, relative humidity, top and bottom temperatures (main concern of study) on the gain output ratio (GOR), the recovery ratio (RR), entropy generation in the system have been analyzed and presented. It has been observed that an optimal mass flow ratio exists for both the cycles, which maximizes the GOR of the system. Moreover, effectiveness of the humidifier and the dehumidifier is an important parameter, which determines the productivity of the systems. Furthermore, a higher GOR can be obtained at low Tmin and high Tmax and at high Tmin and low Tmax for systems heated by a water heater, whereas the GOR of the air heated HDH system increases with increasing both the Tmin and the Tmax for values of humidifier and dehumidifier effectiveness of 0.8. This study provide extended design charts for building an optimum HDH system to produce a predetermined rate of desalinated water.

AB - Humidification dehumidification process is an attractive small scale water desalination technique in which desalinated water is produced by mimicking the nature's water cycle. Various modifications to the basic HDH system can be vital in improving the productivity and reducing the production cost of the fresh water. In this study, a closed-air-open-water waterheated (CAOW-WH) cycle and a closed-air-open-water airheated (CAOW-AH) cycle are modeled and optimized. Effects of mass flow ratio, humidifier and dehumidifier effectiveness, relative humidity, top and bottom temperatures (main concern of study) on the gain output ratio (GOR), the recovery ratio (RR), entropy generation in the system have been analyzed and presented. It has been observed that an optimal mass flow ratio exists for both the cycles, which maximizes the GOR of the system. Moreover, effectiveness of the humidifier and the dehumidifier is an important parameter, which determines the productivity of the systems. Furthermore, a higher GOR can be obtained at low Tmin and high Tmax and at high Tmin and low Tmax for systems heated by a water heater, whereas the GOR of the air heated HDH system increases with increasing both the Tmin and the Tmax for values of humidifier and dehumidifier effectiveness of 0.8. This study provide extended design charts for building an optimum HDH system to produce a predetermined rate of desalinated water.

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KW - Optimization

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M3 - Conference contribution

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T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

BT - Energy

PB - American Society of Mechanical Engineers (ASME)

ER -

Investigation of the effect of the top and the bottom temperatures on the performance of humidification dehumidification desalination systems

Abstract

Publication series

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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