The design and operation of a process facility typically necessitate the conducting of various engineering analyses. Engineers must be able to predict process operating conditions, as well as execute optimization studies to meet their project goals. Aspen HYSYS has the capability to model complex process facilities, and assist engineers in finding the operating conditions that will maximize the value of plant assets (without exceeding plant design limits, e.g. available utilities). This technology can reduce capital costs by providing accurate thermophysical data for equipment sizing, and by enabling the user to perform sophisticated calculations that would be impractical with less-capable technologies.