The influence of the environment on the temperature state of structural elements of offshore stationary platform

Abstract

Offshore fixed platforms (OFP) are exposed to solar radiation, which leads to their heating. In turn, a change in the thermal state (TS) of the structural elements (SE) of the support block leads to the appearance of different temperature stresses in direction and magnitude, the analysis of which was carried out by the author in the work. Previously, the author developed a technique that allows you to calculate the temperature of the SE of the reference block without taking into account the influence of the environment. This article provides an augmented technique that allows you to evaluate this effect both in conditions of free and forced convection. In addition, a correction factor is introduced into the formula for estimating the surface temperature of elements, taking into account their degree of blackness. On the basis of the developed methodology, an example of calculating the thermal state of the SE of OFP in the Black Sea is given. The difference between the TS columns, braces and horizontal elements is revealed.