TY - JOUR
T1 - Thermal-hydraulic characteristics of gasketed plate heat exchangers as a preheater for thermal desalination systems
AU - Jamil, Muhammad Ahmad
AU - Ud Din, Zia
AU - Goraya, Talha S.
AU - Yaqoob, Haseeb
AU - Zubair, Syed M.
N1 - Funding Information:
The authors acknowledge the support provided by Mechanical Engineering Departments of Khwaja Fareed University of Engineering and Information Technology (KFUEIT), Rahim Yar Khan and Universiti Sains Malaysia (USM). Also acknowledged is the support provided by Engr. Muhammad Basit Shafique and Mr. Muhammad Shahrukh for facilitating during the laboratory work. Syed Zubair would like to acknowledge the support received from King Fahd University of Petroleum & Minerals (KFUPM) through the project IN171048.
Funding Information:
The authors acknowledge the support provided by Mechanical Engineering Departments of Khwaja Fareed University of Engineering and Information Technology ( KFUEIT ), Rahim Yar Khan and Universiti Sains Malaysia (USM). Also acknowledged is the support provided by Engr. Muhammad Basit Shafique and Mr. Muhammad Shahrukh for facilitating during the laboratory work. Syed Zubair would like to acknowledge the support received from King Fahd University of Petroleum & Minerals (KFUPM) through the project IN171048.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/2/1
Y1 - 2020/2/1
N2 - Gasketed plate heat exchangers (PHXs) are frequently used as preheaters in thermal water desalination systems to preheat the intake seawater by recovering heat from the brine and distillate streams. The detailed design and analysis of PHXs as a preheater is not available in the desalination related studies. Rather, the heat transfer coefficients are calculated by simple empirical equations. The current study provides a comprehensive design procedure and analysis of these preheaters. In this regard, a numerical model is developed to investigate the thermal–hydraulic performance of PHXs under various operating conditions. First, the code is validated against the experimental data and then the effect of input parameters is studied. The results show that the feed flow rate and plate chevron angle are very important parameters for the heat transfer coefficient and pressure drop in PHXs. It is shown that the salinity does not affect the HX performance; however, the study also showed that the selection of fouling resistance is critical and it considerably disturbs the design parameters that govern the heat exchanger cost. Finally, the sensitivity analysis is presented to identify the most sensitive input parameters for the thermal–hydraulic performance of the heat exchanger.
AB - Gasketed plate heat exchangers (PHXs) are frequently used as preheaters in thermal water desalination systems to preheat the intake seawater by recovering heat from the brine and distillate streams. The detailed design and analysis of PHXs as a preheater is not available in the desalination related studies. Rather, the heat transfer coefficients are calculated by simple empirical equations. The current study provides a comprehensive design procedure and analysis of these preheaters. In this regard, a numerical model is developed to investigate the thermal–hydraulic performance of PHXs under various operating conditions. First, the code is validated against the experimental data and then the effect of input parameters is studied. The results show that the feed flow rate and plate chevron angle are very important parameters for the heat transfer coefficient and pressure drop in PHXs. It is shown that the salinity does not affect the HX performance; however, the study also showed that the selection of fouling resistance is critical and it considerably disturbs the design parameters that govern the heat exchanger cost. Finally, the sensitivity analysis is presented to identify the most sensitive input parameters for the thermal–hydraulic performance of the heat exchanger.
KW - Desalination
KW - Experimental and numerical analysis
KW - Plate heat exchanger
KW - Preheaters
UR - http://www.scopus.com/inward/record.url?scp=85078200979&partnerID=8YFLogxK
U2 - 10.1016/j.enconman.2019.112425
DO - 10.1016/j.enconman.2019.112425
M3 - Article
AN - SCOPUS:85078200979
VL - 205
JO - Energy Conversion and Management
JF - Energy Conversion and Management
SN - 0196-8904
M1 - 112425
ER -
