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Air-Cooled Heat Exchangers
Introduction to components, thermal design, and performance control from Hudson Products Corporation. A free tutorial with software for basic calculations can be downloaded.

@RISK
Risk analysis and simulation add-in for Microsoft Excel or Lotus 1-2-3. Demo available for download.

Control Arts Inc.
Commercial software for chemical and related industries: multivariable and application specific controllers, alarm history analysis, tools for operations management and process control.

Convection Designer
Java-based engineering tool for the thermal and flow analysis of plate/fin compact heat exchangers. Free online demo available.

DataFit
Software tool for nonlinear regression (curve fitting) and statistical analysis, Windows 9x/NT, 30 day evaluation copy can be downloaded.

DesignEx
Software for shell and tube heat exchanger design. Restricted version (only one of eight standard tubesheet layouts can be selected) is available for download.

DPLOT
Free 2D graphing utility for Windows 3.x and 95/NT. Supports the most important graph types for scientific applications (linear, logarithmic, tripartite, probability, polar, and histograms).

EDTECH
Software for scientific-style XY-plots and other high-resolution, highly detailed black-and-white line graphics, trial version available for download. Windows 9x/NT.

Emissions Loss Spreadsheet
Spreadsheet from Esco Engineering, calculates evaporation rates from open liquid surfaces. Designed for steam and acid loss calculations from pickling tanks but the method is quite general.

Engineer's Aide
Commercial software from Epcon International for flowsheeting and simulation and sizing of process piping systems. Comes in a variety of configurations and prices. Demo available after registration.

Engineering Power Tools
General engineering software containing over 70 programs and data tables in one integrated package. Categories included are: Math, HVAC, Mechanical, Electrical, Materials, and Structural. Restricted shareware for Windows 3.x (or later). 770 kB.

ExcelŽ Goodies
Fourteen useful spreadsheets from Esco Engineering for doing chemical engineering and related calculations, e.g. acid dewpoint, compressible flow, control valve sizing, orifice plate calcs for liquid and gas flow, packed tower design.

Flow Pro 2.0
Low-cost Windows 95/NT hydraulic design software for open channels, orifices, weirs, and sluicegates. Shareware.

Graphmatica
An excellent equation plotter. There are versions for MS-DOS, Windows 3.1, and Windows 95/NT. Shareware.

HES
Educational software for thermal design of shell and tube heat exchangers, Windows 9x, demo available for download.

HTFS Heat Exchanger Thermal Design and Rating
Overview on PC and mainframe software from HTFS for modelling industrial heat exchangers. No demos available.

HYDROFLO^TM for Windows 95/98
Fluid conveyance system design software for piping system analysis and design. Trial version can be downloaded.

Kalkulator
Powerful scientific calculator program for Windows 3.1/95. Shareware.

NPS-Nominal Pipe Size
Database of dimensional, weight, and flow information for more than 2500 sizes of standard and specialty pipes and tubes in different materials. DOS and Windows version. Shareware.

Packed Column Calculator
Shareware for hydraulic design and rating of packed columns and towers from Katmar Software. MS Windows 3.1 and above, 730 kB.

PIPEFLO
Commercial software from Neotec for design and analysis of multiphase and single phase pipelines and gathering systems.

Piping Systems Fluid Flow
Simulation software for hydraulic design and network analysis of piping systems for compressible and incompressible fluids, demo can be downloaded after free registration, Windows 9x/NT.

Project Risk Analysis
Shareware computer program from Katmar Software for calculating the risk of possible over expenditure on capital projects, and for calculating the contingency required to reduce the risk to acceptable levels. Windows 3.1 and above. 620 kB.

PumpBase - Advanced Pump Selection
Windows 95/98 software for pump selection. Demo can be downloaded.

SAL -- Scientific Applications on Linux
A huge collection of scientific programs for Linux.

SF Pressure Drop
Shareware for Windows 95/NT from Norbert Schmitz. Calculation of pressure drop in pipes for Newtonian fluids in laminar or turbulent flow.

Single Phase Pressure Drop Spreadsheet
From Hugh Brian. Also included are a pure component density worksheet utilizing the SRK equation of state and a worksheet that calculates maximum flow through a length of pipe given a pressure drop.

Tecplot
Software for the visualization of scientific and engineering data with many advanced features, versions for various UNIX workstations and Windows 9x/NT, demo available after registration.

UCALC 4.0
A multipurpose calculator for Windows. Includes scientific expression evaluator, unit converter, equation solver and graphing,... Fully functional evaluation copy available.

Vinny Graphics
Graphing and data analysis program for science and engineering students. Fully functional, time limited demo versions for Windows 3.1x and for Windows 95. Registration US$10.00.

WinPipeD
MS Windows program for calculating hydraulic pressures, temperatures, flow patterns, and liquid holdups in steady multiphase flow in a single pipe. Free basic version for personal, not-for-profit use and professional version available.