Как выбрать гостиницу для кошек
14 декабря, 2021
The box of the MMA can be oriented freely in two dimensions, i. e. azimuth and elevation angle. For each position of the MMA in a heliostat field, a specific combination of these angles yields the best performance on an annual basis.
As an example,
Figure 7 shows the influence of the box orientation on the annual performance for a heliostat that is located 71m north and 71m east of the tower. The annual reflection efficiency shows a maximum at an azimuth angle of 251.5° and an elevation angle of 36°. This in a reference system where an azimuth angle of 270° corresponds to the box oriented south (east = 0°), and an elevation angle of 0° indicates a non-tilted horizontal box.
In the following calculations, the heliostat under consideration is always oriented to achieve optimum annual reflection efficiency.