Heat exchanger networks (NETZ)

NETZ Module

Program features:

The NETZ module combines heat exchangers of any types available in our ATLAS system in a network. The allowable types are single phase shell-and-tube exchangers, vaporizers, condensers, air coolers and various special types. For the complete list, refer to our catalog index. Various external streams may be supplied by the user to feed the flowsheet at specific flowrates and thermal conditions. Streams may be combined or split within the network.

NETZ simulates all units and generates a summary listing all stream data and a complete temperature profile.

Special features:

Data input is either by keyword or in a graphical mode. The calculation can be either design or rating. At first, the flowsheet is completely defined by the user in the graphical mode, having entered all initial stream conditions and types of units in question.

Design:

After the flowsheet is fixed, a first estimate is performed by the program based on the types of exchangers in the network. This is done by assuming a thermal efficiency for the different units to arrive at an initial temperature profile and exchanger area. The user is now called on to give more information about the streams and geometrical dimensions of the single exchangers starting from minimum input. The system is recalculated after each input and the user will always see how his solution is proceeding step by step. The user is kept very close to his problem and is able to retrace his final solution.

Rating:

The rating case allows the user to simulate networks with existing exchanger geometry for the purpose of optimizing.

All the exchangers are simulated in great detail according to the best available method, for tubesheet design as well as thermal and hydraulic design. For more information refer to the description of the specific exchanger modules.

Working with the NETZ module:

An effective user should be familiar with the requirements for using the LV exchanger modules and the design of heat exchangers in general. This is the most important for a successful session.

Price: on request

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