Thermal Characteristics of Solar Air Heater Having Artificial Roughness of Multiple ARC Type with Thermal Storage System

Authors

  • Upendra Kumar  M. Tech. Scholar, Department of Mechanical Engineering, Radharaman Institute of Research and Technology, Bhopal, India
  • Rajiv Varshney  Director, Radharaman Institute of Research and Technology, Bhopal, India

Keywords:

Thermal Characteristics, Solar Air Heater, Artificial Roughness ARC, TRACEPRO, Intensity of Radiation, Inlet Air Temperature, Surface Temperature, PVC

Abstract

An experiment analysis was performed to find the thermal characteristics of a solar air heater with artificial roughness and thermal storage system. The aluminium wire was used for the artificial roughness with a diameter of artificial roughness 2 mm. Geometry of artificial roughness was in the form of continuous arc shape without gap, pitch 20 mm, relative angle of attack (?/90) = 0.66. Oil has been used as the thermal storage system. Oil absorbs heat during the sun shine hours and after sun set releases the heat to heat up the air. Oil provides heat to the air extra two hour after sun set. The experiments were performed at Reynolds number 11000. It was found that the outlet air temperature of conventional solar air heater (SH) is higher than that of modified solar air heater (RH) in the time period of 9:30 AM to 1:00 PM. In time interval between 1:00 PM and 4:00 PM outlet air temperature of RH was more or less equal to that of SH. After 4:00 PM outlet air temperature of RH was higher than that of SH till 7:00 PM due to the role of thermal storage system. It was found that the outlet air temperatures in both the heaters were higher than that of ambient air temperatures during the period of experimentation.

References

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-06-30

Issue

Volume 3, Issue 3, May-June-2017

Section

Research Articles

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Upendra Kumar, Rajiv Varshney, " Thermal Characteristics of Solar Air Heater Having Artificial Roughness of Multiple ARC Type with Thermal Storage System, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 3, pp.534-538, May-June-2017.