Exergy analysis of a high-temperature-steam-driven, varied-pressure, humidification-dehumidification system coupled with reverse osmosis

Fahad A. Al-Sulaiman; G. Prakash Narayan; John H. Lienhard

doi:10.1016/j.apenergy.2012.10.020

Exergy analysis of a high-temperature-steam-driven, varied-pressure, humidification-dehumidification system coupled with reverse osmosis

Fahad A. Al-Sulaiman, G. Prakash Narayan, John H. Lienhard^*

^*Corresponding author for this work

Department of Mechanical Engineering

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

60 Scopus citations

Abstract

In this study, exergy analysis of a novel desalination system is presented and discussed. The water desalination is carried out using combined humidification-dehumidification and reverse osmosis technologies. Six system performance parameters are examined: overall exergetic efficiency, equivalent electricity consumption, specific exergy destruction, specific exergy lost, and total true specific exergy lost, as well as the exergy destruction ratios of the main components. The total true specific exergy lost is a new parameter presented in this study. It is a function of summation of total the exergy destruction rate and loss per total mass flow rate of the total pure water produced. This parameter is found to be a useful parameter to assess the exergetic performance of the system considered. By contrast, use of overall exergetic efficiency as an assessment tool can result in misleading conclusions for such a desalination system and, hence, is not recommended. Furthermore, this study reveals that the highest exergy destruction occurs in the thermal vapor compressor, which accounts for 50% of the total exergy destruction of the system considered. This study, in addition, demonstrates that the specific exergy destruction of the dehumidifier and TVC are the parameters that most strongly affect the performance of the system.

Original language	English
Pages (from-to)	552-561
Number of pages	10
Journal	Applied Energy
Volume	103
DOIs	https://doi.org/10.1016/j.apenergy.2012.10.020
State	Published - Mar 2013

Bibliographical note

Funding Information:
The authors thank the King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, for funding the research reported in this paper through the Center for Clean Water and Clean Energy at MIT and KFUPM.

Keywords

Exergy destruction
Humidification dehumidification (HDH)
Reverse osmosis (RO)
Seawater desalination
Thermal vapor compressor (TVC)
Total true specific exergy lost

ASJC Scopus subject areas

Building and Construction
Renewable Energy, Sustainability and the Environment
Mechanical Engineering
General Energy
Management, Monitoring, Policy and Law

UN SDGs

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

Access to Document

10.1016/j.apenergy.2012.10.020

Cite this

@article{6a851c065a1a47a69b9c4321f0671162,

title = "Exergy analysis of a high-temperature-steam-driven, varied-pressure, humidification-dehumidification system coupled with reverse osmosis",

abstract = "In this study, exergy analysis of a novel desalination system is presented and discussed. The water desalination is carried out using combined humidification-dehumidification and reverse osmosis technologies. Six system performance parameters are examined: overall exergetic efficiency, equivalent electricity consumption, specific exergy destruction, specific exergy lost, and total true specific exergy lost, as well as the exergy destruction ratios of the main components. The total true specific exergy lost is a new parameter presented in this study. It is a function of summation of total the exergy destruction rate and loss per total mass flow rate of the total pure water produced. This parameter is found to be a useful parameter to assess the exergetic performance of the system considered. By contrast, use of overall exergetic efficiency as an assessment tool can result in misleading conclusions for such a desalination system and, hence, is not recommended. Furthermore, this study reveals that the highest exergy destruction occurs in the thermal vapor compressor, which accounts for 50\% of the total exergy destruction of the system considered. This study, in addition, demonstrates that the specific exergy destruction of the dehumidifier and TVC are the parameters that most strongly affect the performance of the system.",

keywords = "Exergy destruction, Humidification dehumidification (HDH), Reverse osmosis (RO), Seawater desalination, Thermal vapor compressor (TVC), Total true specific exergy lost",

author = "Al-Sulaiman, \{Fahad A.\} and \{Prakash Narayan\}, G. and Lienhard, \{John H.\}",

note = "Funding Information: The authors thank the King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, for funding the research reported in this paper through the Center for Clean Water and Clean Energy at MIT and KFUPM.",

year = "2013",

month = mar,

doi = "10.1016/j.apenergy.2012.10.020",

language = "English",

volume = "103",

pages = "552--561",

journal = "Applied Energy",

issn = "0306-2619",

}

TY - JOUR

T1 - Exergy analysis of a high-temperature-steam-driven, varied-pressure, humidification-dehumidification system coupled with reverse osmosis

AU - Al-Sulaiman, Fahad A.

AU - Prakash Narayan, G.

AU - Lienhard, John H.

N1 - Funding Information: The authors thank the King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, for funding the research reported in this paper through the Center for Clean Water and Clean Energy at MIT and KFUPM.

PY - 2013/3

Y1 - 2013/3

N2 - In this study, exergy analysis of a novel desalination system is presented and discussed. The water desalination is carried out using combined humidification-dehumidification and reverse osmosis technologies. Six system performance parameters are examined: overall exergetic efficiency, equivalent electricity consumption, specific exergy destruction, specific exergy lost, and total true specific exergy lost, as well as the exergy destruction ratios of the main components. The total true specific exergy lost is a new parameter presented in this study. It is a function of summation of total the exergy destruction rate and loss per total mass flow rate of the total pure water produced. This parameter is found to be a useful parameter to assess the exergetic performance of the system considered. By contrast, use of overall exergetic efficiency as an assessment tool can result in misleading conclusions for such a desalination system and, hence, is not recommended. Furthermore, this study reveals that the highest exergy destruction occurs in the thermal vapor compressor, which accounts for 50% of the total exergy destruction of the system considered. This study, in addition, demonstrates that the specific exergy destruction of the dehumidifier and TVC are the parameters that most strongly affect the performance of the system.

AB - In this study, exergy analysis of a novel desalination system is presented and discussed. The water desalination is carried out using combined humidification-dehumidification and reverse osmosis technologies. Six system performance parameters are examined: overall exergetic efficiency, equivalent electricity consumption, specific exergy destruction, specific exergy lost, and total true specific exergy lost, as well as the exergy destruction ratios of the main components. The total true specific exergy lost is a new parameter presented in this study. It is a function of summation of total the exergy destruction rate and loss per total mass flow rate of the total pure water produced. This parameter is found to be a useful parameter to assess the exergetic performance of the system considered. By contrast, use of overall exergetic efficiency as an assessment tool can result in misleading conclusions for such a desalination system and, hence, is not recommended. Furthermore, this study reveals that the highest exergy destruction occurs in the thermal vapor compressor, which accounts for 50% of the total exergy destruction of the system considered. This study, in addition, demonstrates that the specific exergy destruction of the dehumidifier and TVC are the parameters that most strongly affect the performance of the system.

KW - Exergy destruction

KW - Humidification dehumidification (HDH)

KW - Reverse osmosis (RO)

KW - Seawater desalination

KW - Thermal vapor compressor (TVC)

KW - Total true specific exergy lost

UR - https://www.scopus.com/pages/publications/84871722331

U2 - 10.1016/j.apenergy.2012.10.020

DO - 10.1016/j.apenergy.2012.10.020

M3 - Article

AN - SCOPUS:84871722331

SN - 0306-2619

VL - 103

SP - 552

EP - 561

JO - Applied Energy

JF - Applied Energy

ER -

Exergy analysis of a high-temperature-steam-driven, varied-pressure, humidification-dehumidification system coupled with reverse osmosis

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Fingerprint

Cite this