Abstract: Through establishing a mathematical model for calculating the heat transfer of styrene storage tank and taking the heat transfer calculation of tank shell, tank roof and tank bottom into account, this paper analyzed the heat transfer characteristic of different parts of the tank and presented the methods for calculating heat transfer of different directions. It studied the heat transfer characteristic of styrene storage tank under different working conditions. The research results have certain guiding significance for cold insulation design of styrene storage tanks in practical projects.

Key words: styrene storage tank, mathematical model, heat transfer characteristic