Determination of the optimal size of the fuel element of the elliptical cross-section of a nuclear reactor

The work is devoted to the process of heat exchange a nuclear reactor. Attention was paid improving reliability fuel rods At same time, two cases cross section rod shell were considered: cylindrical and elliptical. Based on application differentiation method, it shown that level thermal stresses arising during transition from circular cross-section an elliptical one decreases. Which confirms choice reduced elements in form ellipse. optimal size itself also obtained. obtained result useful because by varying geometric shape cross-section, possible reduce occur, and, consequently, increase durability rocket engine designs.