BEST, a detail, fast and reliable source for quick cost estimates.
Click here How to Order to purchase or lease this software.
* Demo is available for U.S. and Canadian firms. To request a Demo Click Here

  Thermal Design for Shell-and-Tube Exchangers (TDST)

System Requirement:  MS DOS 3.2 or later,
512 K of RAM, a math co-processor and 1.0 million available disk space.
WindowsÔ :  Program may be run on MS WindowsÔ by setting up
as 'Point & Click' icon under Windows.         
Price:   $ 5,900. U.S. dollars.   Export: $ 7,850.  
Lease Option (US & Canada only):  $250./ month. (six month min. lease period).

DESCRIPTION  
The TDST program is a complete software system for thermal design and rating of shell and tube exchangers covering full range of services and TEMA standards. This program has been developed over many years of extensive practical experience on thousands of various exchanger design configurations. 
The most advanced correlations reflecting the latest developments in heat transfer technology along with feedback from the actual performance data on installed units has been incorporated into TDST.  Thousands of units designed by this program are presently in operation worldwide.

APPLICATION
Program covers all possible operation modes in horizontal and vertical position including:
Single Phase:    Gas - Gas,  Liq - Liq and  Liq - Gas.
Boiling:            pool, forced circulation, natural circulation (thermosiphon).
Condensation:    isothermal, narrow and large condensing range, steam condensing out of non-condensable, multi-component condensation, partial and total condensers.

RANGE OF DESIGN OPTIONS
Exchanger Type-     Covers all TEMA standards including 'X' type shell
Tubes-                     Bare and low fins including 16,19, 26 and 28 fins per inch
Tube Count-            Accurate internal row-by-row method
Tube Pitch-             Triangular, rotated triangular, square, rotated square, and square                                   pitch rotated bundle
Tube Length-           No practical limitations
Tube Pass-               Up to twenty four (24) passes
Baffle Type-            Single, double and triple segmental
Baffle Cut-              Vertical, horizontal and rotated
N.T.I.W.-                 No tube in window design
Shell Size-               Design Mode: up to 85" I.D, Rating Mode: up to 156" I.D
In-Line Flow-           For one tube-pass in-line channel nozzle pressure drop
Impingement-          Plate on or behind bundle (for U-tubes), rod type and swage

PHYSICAL PROPERTY DATA BANK
TDST is integrated with data bank of hundreds of compounds including Steam, Water, Hydrocarbons, gas treating chemicals (Amines & Glycols), heat transfer fluids such as Dowtherms, Therminols, and many others commonly used in the chemical process industry.
If gas mixture physical properties are needed, it can be determined by GMIX program, one of the software provided with 'Support Software Package' (see details few pages down) which calculates the specific heat, thermal conductivity and viscosity of the mixture when gas composition is known.

INPUT DATA
Data is entered on a single page input form and a text file is then created using programs such as EDIT of MS® DOS.
The input sheet format is self-explanatory and user-friendly. Program can operate in either English or Metric unit. Fluids on the shell and tube side could be reversed by a single command with option to run both cases simultaneously. A detail input instructions is included in the manual.

OUTPUT
A well organized output includes design summary mini-prints of intermediate size selections by program along with calculated heat transfer parameters and exchanger hydraulics showing why they were not acceptable (e.g. under surface, excessive pressure drops, etc.).
Through this routine, TDST will search and optimizes the unit size to satisfy the duty, heat flux, pressure drops, tube length and other limitations specified by the user or required by design conditions.
Once the optimum design is selected, a detail computation of critical parameters of the final selection is displayed for engineer's evaluation.
An extensive "error-checking" routine is built into TDST to check for possible wrong or impractical data entry. The "intelligent-system" provides essential messages, warnings and design analysis to ensure the most economical and the best design configuration. 
If any signs of flow-induced or acoustical vibration is detected, a detail analysis shall be carried out and suggestions and remedies to eliminate or reduce vibration problems will be outlined for designer's review. User has the option of viewing the entire output before sending it to the printer.

Support Software Package *
Number of stand-alone heat transfer and fluid flow software programs to assist in design and simulation of shell-and-tube exchangers.
* This software package is provided at no cost with purchase of TDST program.

The support software package includes:

VIB        flow-induced and acoustical vibration analysis in shell & tube exchangers.
GMIX     calculates physical properties for gas mixtures.
INTEM    unknown or intermediate temp(s) for existing unit or exchanger train.
FLOW    types of two-phase flow patterns based on Baker's graph.
RESID    surge (purge) time calculation for kettle reboilers.
MTD      mean temperature difference and correction factor.
WMTD   weighted mean temperature difference.
TPD      pressure drops in pipes, tubes and nozzles for single and two-phase flow.

Price:   $ 695. U.S. dollars. $ 850. Export.
Free with the purchase of TDST program.

Click Here to purchase or lease this software.
* Demo is available for U.S. and Canadian firms. To request a Demo Click Here

Home  Engineering  Our Team  Software  How to Order  Purchase  Lease