Pinch Technology

Pinch technology provides a clear picture of the energy flows in a process. It identifies the most constrained part of the process—the process pinch. By correctly constructing composite heating and cooling curves, a design engineer can quantitatively determine the minimum hot and cold utility requirements. This tool is called targeting. Another tool, the grand composite curve, determines the correct types, levels, and quantities of all utilities needed to drive a process.

Once targets are set, the design engineer can design the equipment configuration that accomplishes the targeted minimum utilities. A key feature of pinch technology is that energy and capital targets for the process are established before the design of the energy recovery network and utility systems begins.

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