Parabolic-trough solar water heater

• Main Author: Karthigeyen Govindasamy
• Format: Academic Exercise
• Language: English
• Published: 2008
• Subjects: TD Environmental technology. Sanitary engineering
• Online Access: https://eprints.ums.edu.my/id/eprint/19906/1/Parabolic.pdf; https://eprints.ums.edu.my/id/eprint/19906/

This study presents the parabolic-trough solar water heater in how much the heat absorbed by this water heater and the influence of the pipes along the trough. Black coated pipes can absorb more heat then the non-coated pipes. The advantage of parabolic-trough solar water heater compare to other shape of solar water heaters is, it can reflect the sun light to the focal point not considering position of the sun and the sun light falls. The most important thing in this parabolic-trough solar water heater is the focal point. The focal point must be at the right position so that the parabola shape can reflect the sun light towards the pipe along the focal point. The focal point in this research is at 5.3cm height from the mid-point of the parabola shape.