Salinity gradient solar ponds

2013 ◽  
pp. 213-236
Keyword(s):  
Salinity Gradient ◽  
Solar Ponds

Thermal Heat Storage Gain of Salinity Gradient Solar Pond Using Evacuated Tube Solar Collectors

2015 ◽  
Vol 1113 ◽  
pp. 800-805 ◽  
Author(s):  
Baljit Singh ◽  
Muhammad Fairuz Remeli ◽  
Alex Pedemont ◽  
Amandeep Oberoi ◽  
Abhijit Date ◽  
...  
Keyword(s):  
Large Scale ◽  
Heat Storage ◽  
Salinity Gradient ◽  
Heat Energy ◽  
Working Fluid ◽  
The Sun ◽  
Solar Ponds ◽  
Solar Pond ◽  
Evacuated Tube Collectors ◽  
Evacuated Tube

This paper investigates the capability of running a system which uses hot fluid from solar evacuated tube collectors to boost the temperature and overall heat storage of the solar pond. The system is circulated by a solar powered pump, producing heat energy entirely from the incoming solar radiation from the sun. Solar evacuated tube collectors use a renewable source of power directly from the sun to heat the working fluid to very high temperatures. Solar ponds are emerging on the renewable energy scene with the capacity to provide a simple and inexpensive thermal storage for the production of heat on a large scale. The results of the performance of the system show a significant heat energy increase into the solar ponds lower convective region, increasing the overall performance of the solar pond.

Monitoring and maintaining the water clarity of salinity gradient solar ponds

Solar Energy ◽  
2011 ◽  
Vol 85 (11) ◽  
pp. 2987-2996 ◽  
Author(s):  
Naheed Malik ◽  
Abhijit Date ◽  
Jimmy Leblanc ◽  
Aliakbar Akbarzadeh ◽  
Barry Meehan
Keyword(s):  
Salinity Gradient ◽  
Water Clarity ◽  
Solar Ponds

Heat extraction methods from salinity-gradient solar ponds and introduction of a novel system of heat extraction for improved efficiency

Solar Energy ◽  
2011 ◽  
Vol 85 (12) ◽  
pp. 3103-3142 ◽  
Author(s):  
Jimmy Leblanc ◽  
Aliakbar Akbarzadeh ◽  
John Andrews ◽  
Huanmin Lu ◽  
Peter Golding
Keyword(s):  
Salinity Gradient ◽  
Extraction Methods ◽  
Heat Extraction ◽  
Solar Ponds

Desalination coupled with salinity-gradient solar ponds

Desalination ◽  
2001 ◽  
Vol 136 (1-3) ◽  
pp. 13-23 ◽  
Author(s):  
Huanmin Lu ◽  
John C. Walton ◽  
Andrew H.P. Swift
Keyword(s):  
Salinity Gradient ◽  
Solar Ponds

The Influence of Height of LCZ on the Salinity Diffusion of Solar Pond

2013 ◽  
Vol 448-453 ◽  
pp. 1521-1524
Author(s):  
Chun Juan Gao ◽  
Qi Zhang ◽  
Hai Hong Wu ◽  
Liang Wang ◽  
Xi Ping Huang
Keyword(s):  
Solar Energy ◽  
Fresh Water ◽  
Salt Water ◽  
Salinity Gradient ◽  
Good Method ◽  
Convective Zone ◽  
Solar Ponds ◽  
Solar Pond ◽  
Salt Gradient ◽  
And Diffusion

The solar ponds with a surface of 0.3m2were filled with different concentration salt water and fresh water. The three layer’s structure of solar ponds was formed in the laboratory ponds by using the salinity redistribution. The performance and diffusion of salinity were xperimentally in the solar pond. The measurements were taken and recorded daily at various locations in the salt-gradient solar pond during a period of 30 days of experimentation. The experimental results showed that the salinity gradient layer can sustain a longer time when the lower convective zone is thicker, which is benefit to store solar energy. Therefore, properly increasing the height of LCZ is a good method to enhance the solar pond performance.

scholarly journals EXPERIMENTAL STUDY ON IN-POND HEAT EXCHANGER PROVIDED WITH TWISTED TAPES

2017 ◽  
Vol 10 (13) ◽  
pp. 467
Author(s):  
Karunamurthy K ◽  
Nayan Singh ◽  
Vivek Singh
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Saline Water ◽  
Salinity Gradient ◽  
Swirl Flow ◽  
Laboratory Model ◽  
Solar Ponds ◽  
Twisted Tapes ◽  
Twist Ratio

In-pond heat exchangers (IHE) are used in salinity gradient solar ponds (SGSP), to transfer heat from hot saline water of the lower convective zone to the heat transfer medium. The performance of the SGSP depends on the performance of the IHE, which in turn depends on the method of heat transfer augmentation. A laboratory model IHE was fabricated to augment the heat transfer using helical twisted tapes (HTTs). The effects of varying twist ratio and double TTs on pressure drop and heat transfer were studied in this experimental work. Conventional HTTs of three twist ratios (Y=7, 9, 11), twin TTs of co-swirl flow (CoTT), and counter-swirl TTs (CTT) with Y=7 were provided in the flow path of the heat exchanger tube for analysis. From the results, it is observed that TTs with less twist ratio yielded higher rate of heat transfer by sacrificing the pressure drop. Compared to single TT, double TT provided better thermal performance. The pressure drop and rate of heat transfer for CTT are more compared to all other cases, including double TT with co-swirl flow.

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