Application of mathematical modeling to optimize the operation of a tubular oil heating furnace

Abstract

An energy balancing scheme has been developed for building a mathematical model of a tubular furnace for heating oil in accordance with the principle of its operation. This will allow taking into account all the heat fluxes, and the result of the work will be a reduction in fuel consumption for the tube furnace. The use of a particular calculation scheme depends on the nature of the task and the features of the boundary conditions of heat transfer. The main factors when choosing a calculation scheme are the accuracy and duration of the calculation. The scientific novelty is that for a tubular heating furnace for the first time it is proposed to use the method of energy balances in the chambers of radiation and convection. The practical significance of the work is to reduce fuel consumption for a tube furnace, as well as the possibility of utilizing the heat of oil refining products when building a mathematical model of a distillation column. The calculation algorithm using the energy balances method for mathematical modeling of heat transfer processes allows balance equations for all furnace sections, including the radiation chamber and the convection chamber. After which several successive approximations are carried out using linear programming. In addition, there are technological solutions to optimize fuel use.

Whether it is economical to use combined heat and power (CHP) system for the efficient utilization of associated petroleum gas in oil extraction sites in China: A cost-benefit analysis considering environmental benefits

“…It is because a) Oil extraction sites have both electricity and heat needs. There is a large amount of electrical equipment at the site, and the temperature of the freshly extracted crude oil once it enters the site needs to be maintained at around 70 °C for subsequent transportation (Osintsev et al, 2019); b) CHP can use associated petroleum gas as fuel, which reduces the cost of fuel. Previously, oil extraction sites burned associated petroleum gas directly into the atmosphere through torches (Rajović et al, 2016); c) The use of CHP can reduce the emission of carbon dioxide, nitrogen oxide, and PM2.5 (Shi et al, 2022).…”