Author(s):
1. Saša Pavlović, Univerzitet u Nišu, Mašinski fakultet, Serbia
2. Marko Mancic, Univerzitet u Nišu, Mašinski fakultet, Serbia
3. Velimir Stefanovic, Univerzitet u Nišu, Mašinski fakultet, Serbia
4. Živan Spasić, Univerzitet u Nišu, Mašinski fakultet, Serbia

Abstract:
In this paper will be presented the process of design, construction and optical performance analysis of a low cost solar concentrator for medium thermal applications.. To avoid complexity of design of an specific shaped surface a common offset parabolic antenna is used to make the reflector. This study develops and applies a new mathematical model for estimating the intercept factor of a new solar concentrator based on the geometric and optical behaviour of the concentrator in Cartesian coordinates. The goal of this paper is to present optical design of a low-tech solar concentrator that can be used as a potentially low-cost tool for laboratory-scale research on the medium-temperature thermal processes, hot water systems, heating systems, cooling systems, polygeneration systems etc. The paper also describes the prototype construction process and ray tracing study with a solar concentrating system consist of three offset parabolic dish reflector.

Key words:
solar offset parabolic concentrating collector,Ray tracing simulations,optical modeling,solar energy conversion,solar radiation

Thematic field:
Energy and Thermal Engineering

Date of abstract submission:
26.02.2015.

Conference:
12th International conference on accomplishments in Electrical and Mechanical Engineering and Information Technology (DEMI 2015)

Abstract