Engineering

Case Study on Solar Air Heater Square RibsSolar air heater is a type of solar thermal system where air is heated in a collector and either transferred directly to the interior space or to a storage medium. The system consists of an absorber plate and metallic plate or glass cover.The use of artificial roughness on the absorber plate is one of the best heat transfer enhancement method employed in solar air heaters. An artificial roughness on the heat transfer surface in the form of wires or ribs of various geometrical shapes mainly creates turbulence near the wall or breaks the laminar sub-layer and thus enhances the heat transfer coefficient with a pressure loss penalty. In order to keep the friction losses at a low level, the turbulence must be created only in the region very close to the duct surface, i.e. in the laminar sub-layer. This topic is an interesting area of research studies among engineering students especially those pursuing research . This is a brief revisit or rather a validation case study on the work already carried out in one of the research study already published before by other authors.  

 CFD Investgation Of Solar Air Heater

 

Objective Of Solar Air Heater Square Ribs

 

Geometry Details Of Solar Air Heater Square Ribs

 

Mesh Details Of Solar Air Heater Square Ribs

 

Boundary Details Of Solar Air Heater Square Ribs

 

Solver Setup Of Solar Air Heater Square Ribs

 

Velocity Turbulence Intensity Of Solar Air Heater Square Ribs

 

ResultsRe 18000 Of Solar Air Heater Square Ribs

 

ResultsRe 15000 Of Solar Air Heater Square Ribs

 

ResultsRe 12000 Of Solar Air Heater Square Ribs

 

ResultsRe 8000 Of Solar Air Heater Square Ribs

 

ResultsRe 5000 Of Solar Air Heater Square Ribs

 

ResultsRe 3800 Of Solar Air Heater Square Ribs

 

Nusselt Comparison Smooth Vs Roughened DUCT