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Spatial Bias in Field-Estimated Unsaturated Hydraulic Properties

HOLT,ROBERT M.; WILSON,JOHN L.; GLASS JR.,ROBERT J. - 2009

poorly- to well-sorted silty sand to very coarse sand. When only observation errors are present, spatial statistics for both … parameters are best estimated in materials with high hydraulic conductivity, like very coarse sand. When simple contact errors …

Persistent link: https://www.econbiz.de/10009435755

Economics of producing methane (exclusively) from geopressured aquifers along the Gulf Coast

Doscher, Todd M.; Osborne, R.N.; Wilson, T.; Rhee, S.W. - 2007

, net thickness of productive sand, porosity, permeability, effective compressibility. It is these parameters which …

Persistent link: https://www.econbiz.de/10009436713

Performance of a solar drier with and without heat storage material for copra drying

Mohanraj, M.; Chandrasekar, P. - In: International Journal of Global Energy Issues 31 (2009) 2, pp. 112-121

materials. Sand mixed with aluminium scrap was used as a heat storage material in solar air heater. The moisture content (wet …

Persistent link: https://www.econbiz.de/10008539313

Performance of a solar drier with and without heat storage material for copra drying

Mohanraj, M.; Chandrasekar, P. - In: International Journal of Global Energy Issues 31 (2009) 2, pp. 112-121

materials. Sand mixed with aluminium scrap was used as a heat storage material in solar air heater. The moisture content (wet …

Persistent link: https://www.econbiz.de/10005048724

Understanding the effects of sand and dust accumulation on photovoltaic modules

Beattie, Neil S.; Moir, Robert S.; Chacko, Charlslee; … - In: Renewable Energy 48 (2012) C, pp. 448-452

Numerical and analytical models of sand and dust particle accumulation on photovoltaic modules in dry regions are … presented and supported by a laboratory investigation of sand particle accumulation on a glass surface. Both models and the …

Persistent link: https://www.econbiz.de/10010805216

Thermal Performance Evaluation of Two Thermal Energy Storage Tank Design Concepts for Use with a Solid Particle Receiver-Based Solar Power Tower

El-Leathy, Abdelrahman; Jeter, Sheldon; Al-Ansary, Hany; … - In: Energies 7 (2014) 12, pp. 8201-8216

This paper presents the results of an extensive study of two thermal energy storage (TES) systems. The goal of the research is to make solar energy cost-competitive with other forms of electricity. A small-scale TES system was first built. The inner to outer layers were made of firebrick (FB),...

Persistent link: https://www.econbiz.de/10011096207

Sand as a compressible fluid

Ivšić, Tomislav; Galović, Antun; Kirin, Davor - In: Physica A: Statistical Mechanics and its Applications 277 (2000) 1, pp. 47-61

compressible fluid. The proposed analogy between sand body and van der Waals fluid, and appropriate form of van der Waals state … expression for pressure in sand in isothermal conditions is also proposed. …

Persistent link: https://www.econbiz.de/10011062645