Key factors impacting performance of a salinity gradient solar pond exposed to Mediterranean climate

Download

Date

2017-01-15

Author

Torkmahalleh, Mehdi Amouei
Askari, Mohammad
Gorjinezhad, Soudabeh
Eroglu, Dilem
Obaidullah, Madina
Habib, Abdullrahman Rajab
Godelek, Sevgi
Kadyrov, Sultan
Kahraman, Orhun
Pakzad, Negar Zare
Ahmadi, Goodarz

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

176
views

0
downloads

Solar ponds are low cost pools of brine solutions with integrated storage zones that harvest incident solar energy and store it as thermal energy. The current study examined the performance of a salinity gradient solar pond under the Mediterranean climatic condition for ten consecutive months of operation, from October 8, 2014 to July 31, 2015. The presented results are based on the experimental data of a smallscale circular pond, 61 cm in diameter a height of 55 cm, constructed and operated at Middle East Technical University, Northern Cyprus Campus (METUNCC). The study showed the necessity of regular surface washing and having excess undissolved salt at the lower convective zone (LCZ) to maintain the pond stability. The variations in the temperature of the non-convective (NCZ) and lower convective zones (LCZ) are found to be a function of both ambient temperature and solar irradiation (insolation). The variation of the overall pond's temperature strongly follows the changes in ambient temperature while solar insolation directly affects the increase in temperature gradient by depth. During the period of this study, the pond reached the highest average temperature of 48 degrees C in July 2015 while the average ambient temperature ;for this month was 30 degrees C.

Subject Keywords

Solar pond, Salinity, Mediterranean climate, UCZ, NCZ, LCZ

URI

https://hdl.handle.net/11511/68576

Journal

SOLAR ENERGY

DOI

https://doi.org/10.1016/j.solener.2016.12.037

Collections

Engineering, Article

Suggestions

OpenMETU
Core

Experimental and numerical analysis of a salt gradient solar pond Güven, Pelin; Taylan, Onur; Torkmahalleh, Mehdi Amouei; Sustainable Environment and Energy Systems (2018-9) A salt gradient solar pond (SGSP) is a low-cost solar energy system, collects incoming solar radiation and then stores it in the form of thermal energy. SGSP has been developed recently and is considered as a large-scale energy collector for long-term use with no or little maintenance. It also has no environmental hazard. Most importantly, solar energy meets the energy demand in a clean and sustainable way; thus, SGSP can be though as a sustainable alternative for conventional energy systems. SGSP has three...
Conceptual design and heat transfer investigation of a dense granular flow solar receiver Johnson, Evan Fair; Baker, Derek Keıth; Tarı, İlker; Department of Mechanical Engineering (2017) Solid particles have previously been proposed as an alternative to molten salt as a heat transfer and heat storage medium for concentrating solar power plants. While previous solid particle solar receiver designs use fluidized or falling particles, the new type of receiver proposed in this thesis uses a gravity-driven flow of particles in a dense granular flow regime. Through experimentation with sand, the flow and heat transfer properties were studied in two geometries: vertical tubular and vertical parall...
Modeling and financial analysis of a solar-biomass hybrid power plant in Turkey Özdemir, Merve; Yozgatlıgil, Ahmet; Department of Mechanical Engineering (2017) Solar thermal and biomass combustion systems can be hybridized via a Rankine cycle to have a continuous electricity generation and lower CO2 footprint. Disadvantages of these two renewable technologies can be overcome by hybridization. In this work; we develop a simulation model for Rankine cycle based, solar-biomass hybrid power plants using the ASPEN PLUS software. Solar parabolic collectors and biomass combustion are arranged in parallel to produce steam for power generation. Using the simulation model; ...
Investigation of olive mill sludge treatment using a parabolic trough solar collector Ben Othman, Fares; Eddhibi, Fathia; Bel Hadj Ali, Abdessalem; Fadhel, Abdelhamid; Bayer, Özgür; Tarı, İlker; Guizani, Amenallah; Balghouthi, Moncef (2022-01-15) The olive mill sludge treatment system developed in this study is an indirect solar dryer driven by a solar parabolic trough collector (PTC). A heat exchanger is implemented to heat air with hot oil coming from the solar collector. The developed hot air dryer can treat up to 50 kg of olive mill sludge distributed over six trays at once. The designed system and its components are described, along with their experimental and simulated performance evaluations. With a mean direct normal irradiation (DNI) higher...
Study Case of Solar Thermal and Photovoltaic Heat Pump System for Different Cities in Turkey Moia-Pol, Andreu; Pujol-Nadal, Ramon; Martinez-Moll, Victor; Bonyadi, Nima; Baker, Derek (2016-10-14) The combination of solar thermal, photovoltaic, and heat pump technologies is a welcome advancement in countries with large solar resources such as Turkey. These systems could have similar efficiencies throughout the year for different locations in Turkey if we adjust the solar storage according to the weather conditions. In this paper, solar heating with a heat pump system for buildings have been designed to achieve different values of the fraction of primary energy saved using Flat Plate Collectors (FPC) ...

Citation Formats

M. A. Torkmahalleh et al., “Key factors impacting performance of a salinity gradient solar pond exposed to Mediterranean climate,” SOLAR ENERGY, pp. 321–329, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68576.