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Artificially roughened solar air heater: Experimental investigations

Singh Yadav, Anil; Kumar Thapak, Manish - In: Renewable and Sustainable Energy Reviews 36 (2014) C, pp. 370-411

Solar air heater is the cheapest and extensively used solar energy collection device for drying of agricultural products, space heating, seasoning of timber and curing of industrial products. The use of an artificial roughness on a surface is an effective technique to enhance the rate of heat...

Persistent link: https://www.econbiz.de/10010785156

Heat and fluid flow characteristics of roughened solar air heater ducts – A review

Kumar, Anil; Saini, R.P.; Saini, J.S. - In: Renewable Energy 47 (2012) C, pp. 77-94

Artificial roughness in the form of repeated ribs is one of the effective way of improving the performance of a solar air heater ducts. Various studies have been carried out to determine the effect of different artificial roughness geometries on heat transfer and friction characteristics in...

Persistent link: https://www.econbiz.de/10011045925

Performance analysis of annulus diffusing area with divergent dimpled tube

Askari, Ehan Sabah Shukri - In: Energy Reports 6 (2020) 2, pp. 11-18

Computational Fluid Dynamics CFD has been achieved to study the flow characteristics. The standard k-e turbulence model is employed …

Persistent link: https://www.econbiz.de/10012652213

Performance analysis of annulus diffusing area with divergent dimpled tube

Askari, Ehan Sabah Shukri - In: Energy reports 6 (2020) 2, pp. 11-18

Computational Fluid Dynamics CFD has been achieved to study the flow characteristics. The standard k-e turbulence model is employed …

Persistent link: https://www.econbiz.de/10012179063

A CFD (computational fluid dynamics) based heat transfer and fluid flow analysis of a solar air heater provided with circular transverse wire rib roughness on the absorber plate

Yadav, Anil Singh; Bhagoria, J.L. - In: Energy 55 (2013) C, pp. 1127-1142

by using computational fluid dynamics (CFD). The effects of small diameter of transverse wire rib roughness on heat … height (e/D) are chosen as design variables. A two-dimensional CFD simulation is performed using the ANSYS FLUENT 12.1 code …. The present CFD investigation clearly demonstrates that the average Nusselt number and average friction factor increase …

Persistent link: https://www.econbiz.de/10011054233

CFD based performance analysis of a solar air heater duct provided with artificial roughness

Kumar, Sharad; Saini, R.P. - In: Renewable Energy 34 (2009) 5, pp. 1285-1291

circular wire in arc shaped geometry has been analysed using Computational Fluid Dynamics (CFD). The effect of arc shaped …

Persistent link: https://www.econbiz.de/10011044495

Energetic and exergetic aspects of solar air heating (solar collector) systems

Oztop, Hakan F.; Bayrak, Fatih; Hepbasli, Arif - In: Renewable and Sustainable Energy Reviews 21 (2013) C, pp. 59-83

Solar air heating (solar collector) is a renewable heating technology and provides heat using solar energy. With fuel costs and other factors, solar air heaters (SAHs) are getting more attention. The energetic and exergetic performance of SAHs is influenced by a number of factors. The present...

Persistent link: https://www.econbiz.de/10010636358

Investigation of the heat transfer behaviour of a polymer solar collector for different manifold configurations

Missirlis, D.; Martinopoulos, G.; Tsilingiridis, G.; … - In: Renewable Energy 68 (2014) C, pp. 715-723

fluid dynamics (CFD). …

Persistent link: https://www.econbiz.de/10010806176

Revision of FED-STD-209D and MIL-STD-1246B and development of IES (Institute of Environmental Sciences) contamination control recommended practices in the United States of America

Mielke, R.L. - 2008

In the United States of America, numerous organizations are writing standards and recommend practices for contamination control and cleanroom applications. The American Society for Testing and Materials (ASTM), the Institute of Environmental Sciences (IES), and various US Government agencies are...

Persistent link: https://www.econbiz.de/10009435485

Computeer-based decision support tools for evaluation of actions affecting flow and water quality in the San Joaquin Basin

Quinn, N.W.T. - 2008

This document is a preliminary effort to draw together some of the important simulation models that are available to Reclamation or that have been developed by Reclamation since 1987. This document has also attempted to lay out a framework by which these models might be used both for the...

Persistent link: https://www.econbiz.de/10009436725