Design, Development & Performance Evaluation Of Concentrating Monoaxial Scheffler Technology For Water Heating And Low Temperature Industrial Steam Application

摘要

This study reveals the Design, Fabrication and Performance Evaluation for 2 bar pressure and 110oC temperature cooking application using 16 m2 Scheffler reflector. The Scheffler along with mild steel absorber plate of size, 18 cm . and 2.5 cm thick was evaluated for performance in month of February 2012 at composite climate zone. During the performance it was observed that solar radiation over the day varies from 620 W/ m2 to 937 W/ m2. The instantaneous efficiency decreases with increase in radiation. Absorber plate temperature varies from 138oC to 235oC, while maximum steam temperature achieved was 107oC at the outlet of the boiler. The overall efficiency achieved was 57.41 % which appears on higher side as compared to parabolic trough devices. The paper conclude achievement of concentrating solar thermal devices using Scheffler technology for water heating and low pressure, temperature steam applications in industries as textiles, dairies, food industry etc