Experimental Analysis of a Solar Flat Plate Collector for Enhancement in Thermal Performance using Solar Turbulence Generators
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2019, Vol 9, Issue 5
Abstract
Solar air heaters are now-a-days used in space heating as well as a process heating in domestic applications. Since it is a renewable energy conversion device, enhancement of such devices assumes greater significance due to its lower efficiency. In this analysis, an attempt is made to improve the effectiveness of the solar collector by incorporating turbulence generating devices on the side walls of the air heater duct, which are energized by solar photo voltaic cells. The turbulence generators introduce swirl motion around them which enhances mixing of the hot and cold side of the fluid, resulting in enhanced heat transfer. It is noted from the study that with an increase in mass flow rate inside the duct, air heater with turbulence generating devices shows a remarkable improvement in the heat transfer with significant improvement in temperature rise across the duct compared to that of the smooth duct configuration. These results corroborate well with the corresponding drop in absorber plate temperature. However, with an increase in mass flow rate corresponding to the lower rotational speed of turbulence generators, the air heater with turbulence generators show a decrement in the heat transfer capacity. This results in reduction of the heat transfer capability and leads to lower temperature rise.
Authors and Affiliations
Arun Kumar. H. S, Madhwesh N, K Vasudeva Karanth
Keywords
Related Articles
- EP ID EP672298
- DOI 10.24247/ijmperdoct201983
- Views 81
- Downloads 0
New Green Energy: Ocean Wave Energy Conversion Physical Turbine Models and Designs Photos Presentation and Explanations for Large Scale Manufacturing
Energy needs are large and inevitable but energy production by Thermal and Nuclear power producing plants may have to be gradually withdrawn as they are directly and indirectly harmful and dangerous to the entire world w...
Experimental Investigation of Twisted Tape Insert in a Double Pipe Heat Exchanger using Aluminium Oxide Nanofluid
This document reports on the experimental investigation of the features of the heat transfer performance of heat exchanging device with tape insert. The experimental investigation was carried out pipe a warped tape inser...
Analytical Solution to MHD Flow and Heat Transfer of Visco-Elastic Fluid Over an Exponentially Stretching Sheet in Porous Media with Viscous Dissipation
In this paper, we study the heat transfer of MHD visco-elastic fluid flow through porous medium over an exponentially stretching sheet with viscous dissipation. By using suitable similarity transformations the governing...
Spray Characteristics Optimization of Biodiesel Fuel in Constant Volume Chamber Using Multi-Response Optimization Technique
This study primarily focuses on optimizing the spray characteristics of biodiesel fuel in a spray chamber. Three factors have been considered; fuel injection pressure, number of nozzle holes and fuel blends. To achieve t...
Numerical Parametric Study of Crack Parameters Near Crack Tip
It is necessary to measure accurately crack tip parameters to analyze crack and rate of crack propagation in fracture mechanics. Numerous efforts have been made towards the determination of stress intensity factor (SIF)...