• أن كميات الإشعاع الشمسي من شهر ما

• أن كميات الإشعاع الشمسي من شهر مارس وحتى شهر أكتوبر تكون مرتفعة جدا (وذلك من زاوية ميل صفر وحتى زاوية ميل 20°)، وتقل كمية الإشعاع الشمسي في الفترة بين نوفمبر وحتى فبراير (وهي الفترة الشتوية)، وخلال هذه الفترة الشتوية تزداد كمية الإشعاع الشمسي كلما زادت زاوية الميول، كما يلاحظ أن كمية الإشعاع الشمسي في شهر مايو وحتى شهر اغسطس تقل كلما زاد الميول حتى تصل إلى أدنى مستوى.

Results (English) 1:

• The amounts of solar radiation from March to October are very high (from an inclination angle of zero to an inclination angle of 20°), and the amount of solar radiation decreases in the period between November to February (which is the winter period), and during this winter period the amount of radiation increases. The solar radiation increases as the inclination angle increases. It is also noted that the amount of solar radiation in May until August decreases as the inclination increases until it reaches the lowest level.

Results (English) 2:

From March to October, the amount of solar radiation is very high (from 0 miles to 20 miles), and from November to February (winter) and during winter, the amount of solar radiation decreases. The amount of solar radiation increases with the increase of tilt angle, and it is worth noting that the amount of solar radiation from May to August decreases with the increase of tilt angle until reaching the lowest level.

Results (English) 3:

The solar radiation from March to October is very high (from zero mile angle to 20 mile angle), and the solar radiation from November to February (winter) is low. During this winter, the solar radiation increases with the increase of tilt angle. It is noted that the solar radiation from May to August decreases with the increase of tilt angle until it reaches the lowest level.