CALCULATIONS OF FIXED OPTIMUM TILT ANGLES FOR FLAT-PLATE SOLAR COLLECTORS FOR SONGKHLA, BANGKOK, KHON KAEN, AND CHIANG MAI

SIRISAK TECHATHAWIEKUL

ABSTRACT: Fixed optimum tilt angles for flat-plate solar collectors for four cities in Thailand have been calculated: Songkhla (4.2), Bangkok (10.0), Khon Kaen (11.9), and Chiang Mai (13.5). The relationship between latitudes (L) and fixed optimum tile angles (T_o is represented approximately be a linear equation: T_o = 0.79L - 1.14.

Download PDF

Applied Physics Department, Faculty of Industrial Education and Sciences, King Mongkut's Institute of Technology-Ladkrabang, Bangkok 10520, Thailand

Received 18 October 1983