Experimental analysis for co-generation of heat and power with convex lens as SOE and linear Fresnel Lens as POE using active water stream

2021 ◽  
Vol 163 ◽  
pp. 740-754
Author(s):  
Arvind Singhy ◽  
Robin Thakur ◽  
Raj Kumar
Keyword(s):  
Experimental Analysis ◽  
Fresnel Lens ◽  
Water Stream ◽  
Convex Lens

A Novel High Concentration Fresnel Lens as a Solar Concentrator

2021 ◽  
pp. 1-29
Author(s):  
Kuldeep Awasthi ◽  
Desireddy Shashidhar Reddy ◽  
Mohd. Kaleem Khan
Keyword(s):  
Optical Axis ◽  
Spherical Aberration ◽  
Spherical Surface ◽  
Fresnel Lens ◽  
High Concentration ◽  
Aperture Diameter ◽  
Convex Lens ◽  
Flat Base ◽  
Fresnel Lenses ◽  
Outer Vertex

Abstract This paper describes the design methodology for a novel Fresnel lens. The original Fresnel lens is obtained from a plano-convex lens, whose spherical surface is split into a number of divisions (called facets), collapsed onto the flat base. Thus, all the facets of the original Fresnel lens have the same radius as that of the plano-convex lens. The proposed design aims to achieve better ray concentration and reduced spherical aberration than the original Fresnel lens by constructing spherical facets with unequal radii. The centers and radii of facets are constrained so that the ray refracted from the bottom vertex of each facet on one side of the optical axis and the ray refracted from the outer vertex of the corresponding facet on the other side of the optical axis must intersect at the focal plane. The proposed lens design has resulted in a 275% gain in the concentration ratio and a 72.5% reduction in the spherical aberration compared to the original lens of the same aperture diameter and number of facets. The performance of both novel and original Fresnel lenses when used as solar concentrators with a conical coil receiver is evaluated. The novel Fresnel lens led to increased heat gain and resulted in a compact solar collector design.

Experimental analysis of the optical loss of a dusty Fresnel lens with a novel solar flux test system

2021 ◽  
Vol 48 ◽  
pp. 101656
Author(s):  
Ning Zhao ◽  
Ze Wu ◽  
Hongwei Gao ◽  
Suying Yan ◽  
Xiaoyan Zhao ◽  
...  
Keyword(s):  
Experimental Analysis ◽  
Optical Loss ◽  
Fresnel Lens ◽  
Test System ◽  
Solar Flux

scholarly journals The use of convex lens as primary concentrator for multi-junction solar cells

2018 ◽  
Vol 2 ◽  
pp. 5
Author(s):  
Juan Paolo Lorenzo Gerardo Barrios ◽  
John Raffy Cortez ◽  
Gene Michael Herman ◽  
Aris Larroder ◽  
Bernice Mae Yu Jeco ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Power ◽  
Fresnel Lens ◽  
Lens System ◽  
Junction Solar Cell ◽  
Convex Lens

A concentrator lens system was designed for a multi-junction solar cell, CDO-100-C3MJ, with an added feature − a convex lens was added above the Fresnel lens in order to improve the output power of the setup and reduce the need for the use of solar trackers. The convex lens setup was tested with the Fresnel lens setup over a 3-day photoperiod by measuring the voltage, current, irradiance, and temperature at every hour. The results showed that the convex lens setup produced 1.94% more power, but only at around midday. The increase in power is due to the convex lens that focuses a greater amount of irradiance on the solar cell over the course of the day.

scholarly journals Influence of active water stream, irradiance, ambient temperature and wind speed on the efficiency of Fresnel lens based two stage PVT system

2021 ◽  
pp. 193-193
Author(s):  
Arvind Singhy ◽  
Robin Thakur ◽  
Raj Kumar ◽  
Sushil Kumar ◽  
Sanjeev Kumar ◽  
...  
Keyword(s):  
Wind Speed ◽  
Ambient Temperature ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Thermal Efficiency ◽  
Fresnel Lens ◽  
Water Stream ◽  
Electrical Efficiency ◽  
Water Mass Flow Rate

Influence of wind speed, mass flow rate of water, irradiance and ambient temperature on concentrated Photovoltaic thermal module equipped with linear FL as Primary Optic Element and Convex Lens as Secondary Optic Element have been investigated in this study. Influence of these parameters on module performance in terms of thermal efficiency and electrical efficiency are also examined during investigation. The thermal efficiency and electrical efficiency without consideration of parameters was found to be 14.3% and 51.2 % respectively. With consideration of above mentioned four parameters, the results reveal that electrical efficiency of 17.2% and thermal efficiency of 55.3% can be achieved for designed setup. Thus, there is 20% and 8% increase in electrical efficiency and thermal efficiency respectively. The electrical efficiency increases with increase in fluid flow rate, wind speed and irradiance. Electrical efficiency decreases with increase in ambient temperature. The thermal efficiency increases with increment in water mass flow rate, irradiance and ambient temperature. However, with increase in wind speed, the thermal efficiency decreases.

scholarly journals CONVERGENCE TUNING OF SOLAR POWER FOR ENHANCED ENERGY HARVESTING

2018 ◽  
Vol 48 (2) ◽  
pp. 113-118
Author(s):  
S. K. LAHA ◽  
P. K. SADHU ◽  
A. GANGULY ◽  
A. K. NASKAR
Keyword(s):  
Energy Harvesting ◽  
Solar Energy ◽  
Energy Saving ◽  
Silicate Glass ◽  
Environmental Effects ◽  
Solar Power ◽  
Fresnel Lens ◽  
Photon Management ◽  
Convex Lens ◽  
Focusing Distance

There is a crucial need for sustainable progress in the field of energy saving in rational time. This paper shows the effect of solar energy in photovoltaic with a Fresnel convex Lens. With the use of this Lens it has been studied that there is unbelievable improvement in various parameters of photovoltaic nature. With the use of the Fresnel lens the concentration of the system has been enhanced in commendable time. In order to diminish the losses from reflection, proper photon management has been implemented. This paper describes an approach in scheming of concentrator module. Small size sub-module ,each of which 2×2 cm2 aperture and 15cm focusing distance are united in a fully hermetic module which is resistance to the environmental effects. Fresnel’s Lens has a composite construction and comprise of a silicate glass and a thin refractive profile made of transparent silicon. These advances concern the two main mechanisms of the system, the optics and the cell, as well as their mixing inside a complete module. The projected system can help in reducing the dependency by fossils fuel in the environment.

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