Electromechanical solar tracker system for a parabolic dish with CPU water heater

Abstract

Abstract The parabolic dish reflected and concentrated the solar rays at the focus. But the limited actual working hours during the daytime is the most influential factor for not to be used widely among other solar water heating applications. Therefore, the current study aimed to develop a new dual solar tracking system for parabolic dish CPU water heater using a new Bi-axial tracking system based on the chronological Algorithms tracking system. Two models of solar parabolic dish water heaters have been investigated, the first one is a fixed solar parabolic dish (FFD), and the second one is a tracking solar parabolic dish (MFD). The experimental setup consists of a heating water system, Dual-axis solar tracking control system and a measuring system. Observed from this study that the water temperatures at outlet solar water heater for the two types was differed by about 20% (MFD larger than FFD by 20%), that’s mean that the dual tracking technology enhanced the water temperature of the CPU heat exchanger, and the highest water temperatures were at 1:00 pm for the two models (MFD and FFD), which are reached about 50.8 °C and 47.3 °C, respectively. In the MFD model, useful energy was produced throughout the daytime and recorded the largest value about 71.06 W at 1:00 pm, while in the FFD model, it recorded about. 56.4 W .