Advanced Design Technology through Analysis Technology
Highly stable operability is required for large plants like an LNG plant. To that end, we need to consider more accurate design accuracy and safety, and we sometimes encounter situations where conventional design techniques simply cannot be applied. In other words, although mainly generalized design techniques (design by rule) have been used, there is an increasing demand for design techniques that perform analyses as necessary throughout the course of design (design by analysis).
Chiyoda Corporation has been developing advanced design technology and applying it to actual design work, as outlined below, in cooperation with ChAS, one of our group companies.
- Dynamic simulation
Dynamic simulations are used to construct the behaviors of an LNG plant, including huge refrigeration compressors, at the occurrence of an abnormality or at start-up with the use of detailed mathematical models of facilities, in order to understand the behaviors through the simulations, and to confirm the validity of equipment design and system safety measures. In addition, dynamic simulations are also used to understand the behaviors of key systems.
For LNG receiving terminals, the operability of regasification facilities in response to a varying demand for gas is reviewed through simulations in order to finalize equipment specifications and design control systems.
- Computational fluid dynamics (CFD) analysis
Extra large equipment and pipes may hinder the uniform flow of gases and liquids. In such cases, a model of the equipment is created through computational fluid dynamics (CFD) in order to estimate actual flows by fluid analysis, and proposed improved schemes are also verified through CFD. Simulations through CFD are applied to not only simple heat and flow analysis, but the analysis of very complicated phenomena, such as multiphase flows, combustion, chemical reaction and agitation tanks. Through CFD simulation, we conduct high-quality comprehensive technological studies and solve problems for the design and development of actual equipment.


- Structural analysis technology
We check the strength (estimate stress and deformation) of extra large equipment and pipes, and the supporting structures, and conduct vibration analysis in order to design safer and more economical plants.
- Comprehensive three-dimensional design technology
Along with progress in design, we reflect the results of those designs in three-dimensional models in order to systematically and visually check the soundness of the design, and quickly identify and correct inadequate aspects of the design in terms of operability and usability.
- SHE technology
Because of the recent increase in concern for safety, health and the environment (SHE), we identify potential hazards to LNG plants, estimate and evaluate risks, develop comprehensive risk management for the reduction of the risks, and offer highly safe LNG plants.