Fresnel Lens with Advanced Fabricated Setup for Day Long Production of Hot Water

Abstract

Abstract

This work has been aimed to tap the solar energy source from Fresnel lens and utilize it to produce hot water or steam. The fabricated setup consists of a large spot Fresnel lens which concentrates the sun's rays into a 1 cm2 square spot onto a copper tube with temperature reaching up to 200°C. This concentrated heat is focussed on copper tube absorber to heat the water, the hot water then can be used for a variety of purposes, like sterilize utensils or different equipments in hospitals, restaurants etc. and also for cooking purposes. The setup also consists of a solar tracking system consisting of light resistive sensors and a microcontroller with relay setup that controls the movement of the frame. The experiment has been conducted from morning 9 am to 5 pm, with ever changing hours, the sun was automatically tracked with the help of solar tracking system. From the experimental results it has been observed that the maximum temperature of water obtained was 81°C at 13:00 hours.

Keywords: Fresnel lens, renewable sources, microcontroller, light resistive sensors

Cite this Article

Mallikappa, Akash Mendon, Chiranth PB et al. Fresnel Lens with Advanced Fabricated Setup for Day Long Production of Hot Water. Journal of Alternate Energy Sources and Technologies. 2018; 9(1):    15–19p.