Abbas H. Ali, Ali R. Sarhan, Amer A.Salman, Tarik Y.Kheder
In this paper, a simple, cheap and portable evacuated tube solar grill has been fabricated and evaluated in Iraqi climate. All the experiments were conducted in the site of the Ministry of Science and Technology in Baghdad, Iraq with 45° tilt angle directed to the south during clear and partially cloudy days in January ( 8,11,13 and 15) and April(6,12 and 16) in 2015 with and without reflectors. The highest temperature was 238°C recorded on 12 April with reflectors and no load. Three types of food were barbecued namely; fish, chicken and pastry on 16 April 2015 with 33°C ambient temperature in partially cloudy weather where the highest temperature was 135°C. Chicken grilled in about 70 minutes at 134°C while fish and pastry took about one hour.
Solar energy, Evacuated tube, Thermal efficiency