Автор: Williams
Дата: 8 апреля 2019
Просмотров: 1 003
Heat Transfer Consultant STX v3.5
for wXP users only
The STX program is designed to assist the heat exchanger engineer to obtain competitive and reliable designs for industrial TEMA type shell and tube heat exchangers. Some of the features of the program are described briefly in the following paragraphs.
STX operates in the design, rating or evaluation mode. A case optimization routine will optimize the length of the exchanger with respect to cost. A special routine is included for vertical thermosiphon reboilers and falling film evaporators. Many different cases may be run at once in the special batch mode.
Design determines the surface area and exchanger dimensions for specified process conditions
Rating determines the amount of excess surface area and available fouling factor for a specified exchanger and operating conditions
Evaluation checks to see if the exchanger will perform the specified duty and if it won't, will determine the available duty and outlet conditions.
Vertical Thermosiphon Modes:
Pressure Drop finds the pressure drop and required liquid level for a specified circulation rate
Flowrate finds the circulation rate and fraction vaporized for a specified liquid level