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Performance assessment of a magnesium chloride saturated solar pond

Bozkurt, Ismail; Deniz, Sibel; Karakilcik, Mehmet; … - In: Renewable Energy 78 (2015) C, pp. 35-41

This paper deals with the experimental investigation of a magnesium chloride saturated solar pond and its performance evaluation through energy and exergy efficiencies. The solar pond system is filled with magnesium chloride containing water to form layers with varying densities. A solar pond...

Persistent link: https://www.econbiz.de/10011208666

A virtual reality study of surrounding obstacles on BIPV systems for estimation of long-term performance of partially shaded PV arrays

Celik, Berk; Karatepe, Engin; Gokmen, Nuri; Silvestre, … - In: Renewable Energy 60 (2013) C, pp. 402-414

This work presents a new analytical method to evaluate the efficiency of PV systems working in partial shading …

Persistent link: https://www.econbiz.de/10010805526

Controlled synthesis of ZnO and TiO2 nanotubes by chemical method and their application in dye-sensitized solar cells

Liu, Zhifeng; Liu, Chengcheng; Ya, Jing; Lei, E. - In: Renewable Energy 36 (2011) 4, pp. 1177-1181

them were successfully fabricated and the cell performances were characterized. The efficiency of DSSCs based on ZnO and …

Persistent link: https://www.econbiz.de/10010805571

Nonlinear 2D analysis of the efficiency of fixed Oscillating Water Column wave energy converters

Luo, Yongyao; Nader, Jean-Roch; Cooper, Paul; Zhu, Song-Ping - In: Renewable Energy 64 (2014) C, pp. 255-265

analyse the efficiency of fixed Oscillating Water Column (OWC) Wave Energy Conversion (WEC) devices with linear power take off … frequency and the capture efficiency of the OWC. The key outcome of the present work is that for fully nonlinear waves a … substantial decrease in the hydrodynamic capture efficiency of the OWC device was observed with increasing wave height, which …

Persistent link: https://www.econbiz.de/10010805589

Thermodynamic efficiency of sorption heat pumps

Sorin, M.; Le Goff, P.; Paris, J.; Galatone, V. - In: Renewable Energy 5 (1994) 1, pp. 412-414

A new definition of the exergy efficiency for two types of Sorption Heat Pumps (type I or conventional heat pump and … given operations. Finally the direct relationships between coefficient of performance and exergy efficiency of heat pump and …

Persistent link: https://www.econbiz.de/10010805608

Anaerobic digestion of palm oil mill effluent and its utilization as fertilizer for environmental protection

Ugoji, Esther O - In: Renewable Energy 10 (1997) 2, pp. 291-294

carried out. This method of digestion was chosen in preference to the aerobic mode, among other factors, efficiency of COD and …

Persistent link: https://www.econbiz.de/10010805766

A graphical method to estimate the efficiency of a solar concentrator

Nijegorodov, N.; Jain, P.K.; Devan, K.R.S. - In: Renewable Energy 5 (1994) 1, pp. 373-375

A graphical method to estimate the efficiency of a solar concentrator used for heating and boiling liquids is described … graphically estimated efficiency is within 5% of the efficiency obtained from solar radiation measurements. …

Persistent link: https://www.econbiz.de/10010805831

Numerical simulation of the solar chimney power plant systems coupled with turbine

Tingzhen, Ming; Wei, Liu; Guoling, Xu; Yanbin, Xiong; … - In: Renewable Energy 33 (2008) 5, pp. 897-905

turbine efficiency are 10MW and 50%, respectively, which presents a reference to the design of large-scale solar chimney power …

Persistent link: https://www.econbiz.de/10010805894

Limitations of fixed pitch Darrieus hydrokinetic turbines and the challenge of variable pitch

Kirke, B.K.; Lazauskas, L. - In: Renewable Energy 36 (2011) 3, pp. 893-897

Small Darrieus hydrokinetic turbines with fixed pitch blades typically suffer from poor starting torque, low efficiency … and shaking due to large fluctuations in both radial and tangential force with azimuth angle. Efficiency improves as size … starting torque, high efficiency and reduced shaking but active pitch control systems add considerably to complexity and cost …

Persistent link: https://www.econbiz.de/10010805922

Evaluation and directions of the photovoltaic technologies

Kazmerski, L.L.; Emery, K.A.; DeBlasio, R. - In: Renewable Energy 5 (1994) 1, pp. 252-267

The status of, directions, and expectations for the photovoltaic technologies are discussed and updated, with emphasis on the performances of cells and modules used in various research and commercial solar cell approaches. Current and projected research and development directions are indicated....

Persistent link: https://www.econbiz.de/10010806033