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Aspen Air Cooled Exchanger

Drive capital and operational efficiency through optimized designof air-cooled heat exchangers

Aspen Air Cooled Exchangeris the latest generation of thermal design software for detailed

simulation and optimized design of air-cooled heat exchangers. Companies deploying Aspen Air

Cooled Exchangerrealize significant benefits, such as 10-30% equipment cost savings, reduced

energy costs, and increased engineering efficiency.

The Challenge

Heat transfer equipment accounts for up to 30% of process capital costs and 90% of operating costs. Designing or rating heat

exchangers effectively is a complicated task. Multiple engineering groups with different requirements are typically involved in

each aspect of the design process, using standalone tools with a minimum of integration. Manual transfer of information results

in costly errors, delays, and inconsistencies. An integrated solution that meets the needs of all functional groups is required to

provide a truly optimized design that drives capital and operational efficiency.

The AspenTech Solution

Aspen Air Cooled Exchangerenables optimum design, rating and simulation of air-cooled heat exchangers for both the expert and

casual user. Integration with process simulators and synthesis tools allows for improved reliability by aligning people and

information across technological boundaries.

High level run-time integration with Aspen Plus and Aspen HYSYS enables engineers to rigorously model heat exchanger

operation and identify capital saving opportunities. Process improvements can be modeled for various operating scenarios,

bottlenecks identified, and maintenance schedules

optimized, ensuring sufficient area while identifying

potential operational problems.

Integration with Aspen Plus

or Aspen HYSYS eliminates

the need for manual transfer

of data that is often the cause

of errors and costly delays


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Wide Range of Applications

Conceptual heat exchanger design is a key function of the

process engineer at the early stages of a project, requiring

added detail as the project evolves. Thermal experts must

optimize the sizing of new equipment, rate existing

equipment to ensure sufficient area, and select the bestexchanger type for a given application. Heat exchanger

fabricators must thermally guarantee their heat exchangers,

providing the most economical heat exchangers for a given

set of process conditions.

Aspen Air Cooled Exchangeraddresses these wide range of

application needs. It serves both the engineering contractor

and the equipment fabricator, allowing sharing of models from

conceptual design to operational troubleshooting. Aspen Air

Cooled Exchangerfacilitates the full range of practical process

applications, including multi-component condensing, boiling

heat recovery, and de-humidifying.

Three major databases are included - Aspen Properties, an

industry standard in the chemical sector; Aspen HYSYS

Thermodynamics COM Interface, the leading package in oil &

gas processing; and Aspen B-JAC standard properties package.

This combined collection contains over 15,000 component

properties and more than 30 industry-standard VLE/VLL

methods and mixing rules.

Aspen Air Cooled Exchangersupports the design of air-cooled

heat exchangers and other cross flow exchangers used for

heat recovery, air conditioning, charge air coolers, A-frame

and V-frame configurations.

Key Technical Features

Program modes:

Design optimizes the selection based on

capital and operating costs

Check (Rate) determines if a given

exchanger has sufficient area to achieve a

specified duty

Simulation options multiple simulation

options for prediction of inlet/outlet

temperatures, mass flows, or process fouling

X-side flow and thermal duty operating point for

a defined fan performance curve

Tube types: Plain, high fin, low fin, serrated fin,

studs, tube-in-plate (up to 4 different tube

types in each bundle)

High fin types: Integral, G, L, extruded,

bi-metallic, shoulder grooved

Header types: box, cover plate, D-header,

manifold, u-tube

Passes Up to 50 in simple and complex

arrangements

Bundle size Two to 100 rows, with multiple

bundles per bay and multiple bays per unit

Draught forced, induced, no fans Inclusion of allowance for radiative heat transfer

Interactive graphical tube layout customization

Fouling standard resistance or tubeside as

a function of velocity, temperature, quality,

phase or length; X-side as a function of row

General tubeside and shellside enhancement

methods

Automated handling of condensation with

immiscible liquids

SI, metric, US, and user customizable systems

of measure

Weight and budget cost estimates, includes

capital equipment and operating costs


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Output

Aspen Air Cooled Exchangeruses the power and flexibility of

the Microsoft Windows environment, allowing users to fully

explore exchanger geometry and performance detail. In

addition, Aspen Air Cooled Exchangeris designed to support

drag & drop interfacing with Microsoft Excel, as well ashigh-level communication with other software.

Thermal output includes:

Optimization path that identifies the most economical

design selection, possible alternative designs, and

controlling design constraints

Extensive warning and error reporting, alerting you to

potential operational problems

Summary of exchanger thermal-hydraulic performance

Detailed tubeside, X-side and nozzle pressure drops

Detailed tabulation of incremental calculations

X-side installation and fan noise data

Fully completed API data sheet

Interactive tube layout drawing allowing for

simple and complex pass arrangements

Setting plan drawings for API-type units

Comprehensive incremental output

Extensive graphing capabilities

Program output allows the user

to view thermal summary data,

detailed incremental results,

and graphical output to visualize

the equipment being designed


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Worldwide Headquarters

Aspen Technology, Inc.

200 Wheeler Road

Burlington, MA 01803

phone: +1-781-221-6400fax: +1-781-221-6410

[email protected]

EMEA Headquarters

AspenTech Ltd.

C1, Reading Intl Business Park

Basingstoke Road

Reading UK

RG2 6DT

phone: +44-(0)-1189-226400

fax: +44-(0)-1189-226401

[email protected]

APAC Headquarters

AspenTech - Shanghai

3rd Floor, North Wing

Zhe Da Wang Xin Building

2966 Jin Ke Road

Zhangjiang High-Tech Zone

Pudong, Shanghai

201203, China

phone: +86-21-5137-5000

fax: +86-21-5137-5100

[email protected]

Aspen Exchanger Design and Rating

Aspen Air Cooled Exchangerisa partof theAspen Exchanger Design and Rating family of products.Aspen

Exchanger Design and Rating products offer state-of-the-art heat exchanger simulation and design based on

over 30 years of industry-leadresearch. Our aim is to enhance the value of heat transfer solutions by

providing the mostintegrated product offering across the widest range of technologies. This enables ourcustomers to use the most advanced physically-based modeling, from unit design and overall process

design, through to optimization and operational monitoring.

aspenONE Process Engineering

Aspen Exchanger Design and Rating family of products is a key component of aspenONE Process Engineering

for chemical, refining, and E&Pcompanies. aspenONE Process Engineering is an integrated lifecycle solution

from conceptual design through to plant startup and operations supportenabling our customers to build

and operate safer, competitive and more reliable process plants. Companies are able to reduce capital

and operating costs, increase engineering efficiency and quality, and accelerate time-to-marketwith

payback in months instead of years.

About AspenTech

AspenTech is a leading provider of award-winning process optimization software and services. AspenTechs

integrated aspenONE solutions enable manufacturers to reduce costs, increase capacity, and optimize

operational performance end-to-end throughout the engineering, plant operations, and supply chain

management processes.

For more information, visit www.aspentech.com.

2008 Aspen Technology, Inc. AspenTech, aspenONE, and the Aspen leaf logo are trademarks or registered

trademarks of Aspen Technology, Inc. All rights reserved. 1104-05-0808

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