DESIGN AND COMPARE TWO CHEAP SENSORS FOR MEASURING SUN RADIATION |
Paper ID : 1253-ICESE |
Authors: |
مهران دهقان *1, Mohammadhossein Ghodsirad2, Sadra Ranjbaran3, Seyedmasoud Taheri2 1بلوار وکیل آباد - خیابان دانشجو - دانشجو 24 - پلاک 20 - واحد 1 2University of Coimbra 3Ferdowsi University of Mashhad |
Abstract: |
there are several instruments which are able to measure and estimate solar radiation in different climates and locations. But when it comes to the cost, most of these equipments are expensive. Another parameter which should be considered to use solar radiation meters is size of them. The main goal of this research is designing a cheap and small sensor in order to estimate and measuring sun radiation in different latitudes in order to use them for a passive system. Two different methods have been used in order to estimate and measure solar radiation. An electronic circuit and a solar cell are used to capture solar irradiance and produce an electrical signal based on that. In order to find a convert coefficient, a calibration method is used to convert electrical signals to the standard unit (Watt per square meter (W/m2)) which usually used for measuring sun radiation. Calibration is done by using a reliable Pyranometer DT-1037 to find accuracies of sensors and compare them with each other. A calibration Constant of 2004.5 ± 30W/m2 for the electronic circuit and 424.5± 1 W/m2 for the solar cell is obtained. An experimental test has been done to capture sun radiation within 6 days which consists of sunny days and partly cloudy days. All of experiences have been done in Porsgrunn City in Norway in March and April of 2014 and under supervision of Telemark University of College. |
Keywords: |
Solar Radiation, Solar Cell, Calibration, Pyranometer , Passive systems , |
Status : Paper Accepted |