The solar chimney power plant (SCPP) generates updraft wind through the green house effect. In this paper, the performances of two SCPP styles, that is, the conventional solar chimney power plant (CSCPP) and the sloped solar chimney power plant (SSCPP), are compared through a numerical simulation. A simplified Computational Fluid Dynamics (CFD) model is built to predict the performances of the ...

<p>The local onion market in Ghana is dominated by ‘on the spot’ relationships with little or no coordination of chains to improve quality and performance. This study examines structure, conduct their influence on performance southern part Ghana, using data from 180 actors, comprising 80 farmers, 40 wholesalers 60 retailers. Descriptive statistics, Gini coefficient, Lorenz curve, Herfinda...

Methane's global warming potential (GWP) is much larger than carbon dioxide and contributes significantly to warming. Solar chimney power plant (SCPP) integrated with photocatalytic reactors can capture remove atmospheric methane, generate electrical without fossil energy consumption simultaneously. In this paper, the performance of flow characteristics, CH4 removal, CO2 emission reduction, gen...

the present study surveys the effect of bank-specific, industry-specific and macroeconomic conditions on bank performance to examine the structure-conduct-performance (scp) hypothesis in iranian banking industry. to achieve this goal, we drew upon the panel data technique to analyze the data of eleven public and private iranian banks during 2001-2006. firstly, productivity was calculated by usi...

Solar chimney power plants (SCPPs) collect air heated over a large area on the ground and exhaust it through turbine or turbines located near base of tall to produce renewable electricity. SCPP design in practice is likely be specific site variable size, both which require purpose-built turbine. If cannot mass produced, unlike wind turbines, for example, they should as cheap possible manufactur...

This work deals with the Set Cover with Pairs Problem (SCPP) which is a generalization of the Set Cover Problem (SCP). In the SCPP the elements have to be covered by specific pairs of objects, instead of a single object. We propose a new mathematical formulation using extended variables that is capable of consistently solve instances with up to 500 elements and 500 objects. We also developed an...