CFD (Computational Fluid Dynamics) Analysis

Summary

It is very important to predict complicated multi-dimensional fluid flow motions and related heat transfer in and around the plant facilities and equipment. TOYO has been utilizing CFD analysis technique for many years to solve various engineering problems and has accumulated extensive knowledge and experiences for successful CFD applications.

Application Example of CFD Analysis

Combustion and Heat Transfer in Steam Methane Reformer (SMR)

Complicated fluid flow associated with combustion and heat transfer in SMR was analyzed by CFD technique. Flame shape, tube metal temperature and thermal coupling between tube-inside catalytic reaction and tube-outside heat transfer were verified. By carrying out this CFD analysis, optimal fire box design related to burner and tube arrangement was identified.
TOYO utilizes such CFD analysis technologies to ensure flawless engineering executions and swift field trouble shootings.

Fig.1 Temperature Distribution of Combustion Gas in SMR Fire Box

Fig.1 Temperature Distribution of Combustion Gas in SMR Fire Box

Liquid Sloshing in Flare Knock Out Drum

In FPSO (Floating Production, Storage and Offloading system), effect of hull motion needs to be considered in engineering design. Sloshing in liquid containing drums is one of such phenomena induced by hull motion. In this analysis example, liquid sloshing in a flare knock out drum in FPSO was simulated by CFD. Dynamic liquid surface motion was captured as shown in Fig.2. The effectiveness of internal baffles in minimizing liquid surface fluctuation was verified.
TOYO utilizes such CFD analysis technologies to ensure flawless engineering executions and swift field trouble shootings.

Fig.2 Snapshot of Liquid Surface Motion in Flare Knock Out Drum

Fig.2 Snapshot of Liquid Surface Motion in Flare Knock Out Drum

Two Phase Flow in a Bubble Column

It is essential for bubble column design to realize good gas-liquid contact in order to achieve required process performance. Liquid flow pattern driven by buoyant bubbles is one of dominant factors for this purpose. CFD analysis is a powerful tool for predicting complicated gas-liquid two-phase flow.
In this example, two-phase flow in a bubble column was analyzed. Gas and liquid were separately fed from bottom nozzles, and the liquid was desired to form smooth torus-like pattern driven by rising bubbles in each segment between two baffles. The segmentation and baffle plate design were optimized by CFD to achieve such desirable flow pattern as shown in Fig.3.
TOYO utilizes such CFD analysis technologies to ensure flawless engineering executions and swift field trouble shootings.

Fig.3 Liquid Flow Pattern (Left) and Bubble Distribution (Right) in Bubble Column

Fig.3 Liquid Flow Pattern (Left) and Bubble Distribution (Right) in Bubble Column