SimSci-Esscor Launches Next-Generation Heat Exchanger Simulation Solution |

SimSci-Esscor Launches Next-Generation Heat Exchanger Simulation Solution

BREA, Calif., Nov. 22, 2002 -- SimSci-Esscor(TM), an operating unit of Invensys plc, today announced the introduction of the latest version of its Hextran(R) heat exchanger simulator for its new SIM4ME(TM) environment. Hextran is used in the refining, petrochemical, chemical, gas processing and engineering and construction industries.

SimSci-Esscor, a global leader in advanced process control, optimization and simulation solutions for the process industries, is offering the new version of its heat exchanger simulator as the first in a series of applications for SIM4ME. SIM4ME has been designed to help businesses build open solutions for the process industry and employs an enhanced graphical user interface featuring a full range of process engineering functions within a plant. Based on a model-centric approach, it is designed to host SimSci-Esscor's comprehensive solution offerings which include design operational analysis, dynamic simulation, operator training, on-line performance monitoring and real-time optimization.

SIM4ME has also been designed to support SimSci-Esscor's steady state and dynamic-modeling solutions, along with the full power of SimSci-Esscor's process optimization capabilities.

"SIM4ME is the pinnacle of over 35 years of SimSci-Esscor experience in process simulation," said Ken Brown, vice president and general manager of SimSci-Esscor. "This new tool, coupled with SimSci-Esscor's expert services, provides a more efficient and cost-effective solution in the search for optimal plant performance and profitability."

Hextran's standard features allow users to predict process outcome,
evaluate the efficiency of cleaning processes, monitor performance of units for fouling and optimize heat transfer yields. Hextran for the SIM4ME environment offers a number of enhanced features and advantages, including:
-- Easy-to-use graphical user interface for customer requested third-party links and software tools. This feature enables the seamless interchange of data between Hextran and other software technologies that augment and expand the capabilities of Hextran. -- Users can simulate heat-exchanger networks in addition to modeling individual exchanger units to investigate complex heat-transfer scenarios.
-- During post processing, users can build analytical graphical displays to assist in developing appropriate optimization decisions and solutions.
-- Analysis and review is enhanced through the generation of quick and easy Tubular Exchanger Manufacturers Association (TEMA) exchanger data sheets in both HTML and Excel formats.

As an integral part of the SIM4ME solution, the new 9.0 version of Hextran includes features that allow plant operators to more easily evaluate complex design, operational and retrofit situations enabling the development of new systems for maximum efficiency. Hextran includes an easy access to HRTI and HTFS programs. The simulation application also identifies problems before they occur, providing companies an opportunity to adjust processes accordingly. Hextran will serve as the core heat-transfer technology for the entire SIM4ME solution. Current Hextran users can easily upgrade to the powerful tools offered by Hextran for the SIM4ME environment.

About SimSci-Esscor
SimSci-Esscor is a leader in the development and marketing of industrial process simulation software and systems for a variety of industries, including oil and gas exploration, petroleum refining, petrochemical and chemical manufacturing, electrical power generation, mining, pulp and paper, and engineering and construction. SimSci-Esscor products enable clients to minimize capital requirements, optimize facility performance, and maximize returns on investments in producing assets. SimSci-Esscor, as part of Invensys plc, supports more than 750 client companies in more than 70 countries through offices in Brazil, Venezuela, Germany, Italy, Japan, Singapore, the United Arab Emirates, the United Kingdom and the U.S. For more information, visit the SimSci-Esscor Web site at

About Invensys
Invensys plc is a global leader in production technology and energy
management. The group helps customers improve their performance and profitability using innovative services and technologies and a deep understanding of their industries and applications.

Invensys Production Management works closely with customers in order to drive up performance of their production assets, maximize their return on investments in production technologies and remove cost and cash from their whole supply chain. The division includes APV, Avantis, Baan, Eurotherm, Foxboro, SimSci-Esscor, Triconex and Wonderware. These businesses address process and batch industries -- including the oil, gas and chemicals, food, beverage and personal health care -- and the discrete and hybrid manufacturing sectors.

Invensys Energy Management works with clients involved in the supply, measurement and consumption of energy and water, to reduce costs and waste and improve the efficiency, reliability and security of power supply. The division includes Energy Management Solutions, Appliance Controls, Climate Controls, Global Services, Metering Systems, Powerware and Home Control Systems. These businesses focus on markets connected with power and energy
infrastructure for industrial, commercial and residential buildings.

The company also serves the specialized rail, wind-power and electronic manufacturing (power components) markets through Invensys Rail Systems, Hansen Transmissions and Lambda, respectively, in its development division. Invensys operates in more than 80 countries, with its headquarters in London. For more information, visit
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