TY - GEN
T1 - A method of optical design and construction for low-cost cassegranian type solar concentrators
AU - Gordon, Declan
AU - Morrison, Alan P.
PY - 2010
Y1 - 2010
N2 - This paper describes a design method for a two mirror solar concentrator and a fabrication method suitable for applications where light weight, cost and portability are important factors. The geometry of this Cassegranian type mirror system is defined by splitting a fixed radius of primary and secondary reflector into an equal number of complementary contour segments angled to collimate a radiant planar light source located between the two reflectors. The resulting optical design is validated using a ray trace program that simulates the specular reflections occurring within the system. The performance of a sample surface is analysed on the criteria of concentration and tracking error rejection. Construction of reflective surfaces is achieved using aluminised polyester film, supported by precision machined aluminium ribs. The performance of the constructed optical system is estimated using a relative reflectance measurement of the aluminised mirror film.
AB - This paper describes a design method for a two mirror solar concentrator and a fabrication method suitable for applications where light weight, cost and portability are important factors. The geometry of this Cassegranian type mirror system is defined by splitting a fixed radius of primary and secondary reflector into an equal number of complementary contour segments angled to collimate a radiant planar light source located between the two reflectors. The resulting optical design is validated using a ray trace program that simulates the specular reflections occurring within the system. The performance of a sample surface is analysed on the criteria of concentration and tracking error rejection. Construction of reflective surfaces is achieved using aluminised polyester film, supported by precision machined aluminium ribs. The performance of the constructed optical system is estimated using a relative reflectance measurement of the aluminised mirror film.
UR - https://www.scopus.com/pages/publications/78650104624
U2 - 10.1109/PVSC.2010.5614164
DO - 10.1109/PVSC.2010.5614164
M3 - Conference proceeding
AN - SCOPUS:78650104624
SN - 9781424458912
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 3030
EP - 3032
BT - Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
T2 - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Y2 - 20 June 2010 through 25 June 2010
ER -