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Keywords: laminar flow
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Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2012, 134(1): 011009.
Published Online: November 29, 2011
... model and uses it to analyze NOCT testing standards. Specifically, the standard correction factor charts found in the ASTM E1036 and IEC 61215 standards are evaluated. Results show that the correction charts were likely created assuming laminar flow correlations, while validation efforts and the fact...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. May 2011, 133(2): 021002.
Published Online: March 22, 2011
... building integrated photovoltaics convection electricity laminar flow solar cells solar power stations turbulence Building-integrated photovoltaic/thermal (BIPV/T) systems produce thermal and electrical energy while potentially resulting in reduced effective system costs when compared...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2010, 132(1): 011013.
Published Online: January 4, 2010
.... The evolutionary structure of the scale is visualized with scanning electron microscopy. Consistent with the predictive model, calcium carbonate is more easily removed from polypropylene than copper. In a laminar flow with a wall shear stress of 0.16 Pa, 65% of the scale is removed from polypropylene while only 10...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. November 2007, 129(4): 391–404.
Published Online: May 10, 2007
... to a reactor diameter of 0.02286 m . Gas flow rates were set such that the Ar : ZnO ratio was greater than 3:1 and the system residence time was below 2 s . The system was found to exhibit highly laminar flow in all cases ( Re ∼ 10 ) , but gas velocity profiles did not seriously affect temperature profiles...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. May 2006, 128(2): 251–254.
Published Online: June 22, 2005
... 2005 22 06 2005 calcium compounds polymer blends laminar flow scanning electron microscopes water copper chemical analysis pipes solar heating In solar hot water systems, the surfaces of absorbers, heat exchangers, and distribution pipes can become coated with calcium...
Journal Articles
Article Type: Technical Papers
J. Sol. Energy Eng. November 2002, 124(4): 335–344.
Published Online: November 8, 2002
... of the specified transition points, corresponding to a laminar flow region, and scales to unity directly downstream of the transition onset location, corresponding to a turbulent region. The default intermittency function in the Baldwin-Barth model is a very short ramp (based on the grid index along the wall...
Journal Articles
Article Type: Technical Papers
J. Sol. Energy Eng. August 2002, 124(3): 243–249.
Published Online: August 1, 2002
...   for   laminarflow (4) π   Nu Gz = ln 1 − θ 1 1 − θ 2   for   turbulent   flow At small times, the thickness of the melt-layer is small compared to the tube radius, so that the layer can be regarded as uniform along the tube. This in turn...
Journal Articles
Article Type: Technical Papers
J. Sol. Energy Eng. August 2002, 124(3): 250–255.
Published Online: August 1, 2002
... ENGINEERING . Manuscript received by the ASME Solar Energy Division, Aug. 2001; final revision, April 2002. Associate Editor: K. DenBraven. 01 Aug 2001 01 08 2002 solar cell arrays convection heat radiation cooling laminar flow turbulence Ducts are often fitted behind PV...