Evaporation suppression and solar energy collection in a salt-gradient solar pond

Ruskowitz, Jeffrey A.; Suárez, Francisco; Tyler, S. W.; Childress, Amy E.

doi:10.1016/j.solener.2013.10.035

Cited by 68 publications

(32 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, in a recent 340 investigation, Ruskowitz [44] used the same solar pond of this study to evaluate the effect of 341 evaporation suppression on both the energy collected by the solar pond and the freshwater 342 production rates. Ruskowitz [44] obtained a maximum water production rate of ~2.89¥10 -3 m 3 d -1 343 per m 2 of solar pond when 88% of the pond surface was covered with transparent floating discs 344 [44,45]. This water production rate is 2.5 times larger than that obtained in this work.…”

Section: Thermal Desalination Driven By Solar Pondsmentioning

confidence: 46%

Renewable water: Direct contact membrane distillation coupled with solar ponds

et al. 2015

Self Cite

View full text Add to dashboard Cite

29Desalination powered by renewable energy sources is an attractive solution to address the 30 worldwide water-shortage problem without contributing significant to greenhouse gas emissions. A 31 promising system for renewable energy desalination is the utilization of low-temperature direct 32 contact membrane distillation (DCMD) driven by a thermal solar energy system, such as a salt-33 gradient solar pond (SGSP). This investigation presents the first experimental study of fresh water 34 production in a coupled DCMD/SGSP system. The objectives of this work are to determine the 35 experimental fresh water production rates and the energetic requirements of the different 36 components of the system. From the laboratory results, it was found that the coupled DCMD/SGSP 37 system treats approximately six times the water flow treated by a similar system that consisted of an 38 air-gap membrane distillation unit driven by an SGSP. In terms of the energetic requirements, 39 approximately 70% of the heat extracted from the SGSP was utilized to drive thermal desalination 40 and the rest was lost in different locations of the system. In the membrane module, only half of the 41 useful heat was actually used to transport water across the membrane and the remainder was lost by 42 conduction in the membrane. It was also found that by reducing heat losses throughout the system 43 would yield higher water fluxes, pointing out the need to improve the efficiency throughout the 44 DCMD/SGSP coupled system. Therefore, further investigation of membrane properties, insulation 45 of the system, or optimal design of the solar pond must be addressed in the future. 46

show abstract

Section: Thermal Desalination Driven By Solar Pondsmentioning

confidence: 46%

Renewable water: Direct contact membrane distillation coupled with solar ponds

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…The SGSP can supply thermal energy to a wide variety of applications that necessitate only low-grade heat to run. Examples include providing heat for buildings, power generation ( utilising an organic Rankine cycle), water desalination, greenhouse heating, biogas production, process heating, agricultural crop drying and aquaculture such as for growing warm water fish and shrimps (Ruskowitz et al, 2014;Hull et al, 1988;Alrowaished et al, 2013;El-Sebaii et al, 2011;Date and Akbarzadeh, 2013;Liu et al, 2013;Caruso and Naviglio, 1999;Dehghan et al, 2013;Kurt et al, 2000;Sakhrieh and Al-Salaymeh, 2013;Abdullah et al, 2015;Abbassi Monjezi and Campbell, 2016;and Abbassi Monjezi and Campbell, 2017a). Using SGSPs in such a diverse array of applications is potentially economically beneficial and environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

“…To this end, this study seeks to demonstrate the effect on pond performance of completely suppressing heat and mass losses by evaporation. These losses are one of the main barriers to the successful implementation of solar ponds (Ruskowitz et al, 2014;Sayer et al, 2016). 4…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of the temperature and concentration profiles in a salinity gradient solar pond with, and without a liquid cover to suppress evaporation

Sayer

Al-Hussaini

2017

Solar Energy

View full text Add to dashboard Cite

“…Solar ponds utilize a high-salinity mixture to maintain a density differential between the upper layer of the pond and the lower layer of the pond. In practice, a salt-gradient solar pond is stratified into three primary layers: an upper convective zone (UCZ) which sunlight passes through and may lose heat due to evaporation, a non-convective zone (NCZ) where there is a thermal gradient but ideally no mass transfer, and a hot, lower convective zone (LCZ) where sunlight is absorbed ( Figure A19) (Ruskowitz et al 2014). Energy is extracted from the LCZ of the solar pond either by pumping the hot brine out to a heat exchanger or installing heat transfer piping in the pond itself.…”

Section: Solar Pondsmentioning

confidence: 99%