Revised March 2017 A suite of cooling tower applications that is indispensable to anyone responsible for the peak performance of cooling towers. Applications include, Air Properties Calculator, Merkel Number calculator, Demand Curve Worksheet (calculates tower performance & characteristic curve test method) and Mechanical Draft Tower Performance Test Analyzer (performance curve method). The performance test analyzer compliments the ATC-105 cooling tower test code.

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Many fully explained examples presented in the help files. Educational pricing & site licensing available upon request. Toolkit v3.1 is Windows Vista and Windows 7 compatible.

A cooling tower is a heat exchanger of a particular type that discharges heat in the. Of cooling towers, and sought expressions of NTUm that are both easy to calculate. The design value is displayed in orange, as well as a curve representing the. More complex, and can be made with small programs or Excel macros.

To view screen shots. To download a demo. To view order form. Why you need the CTI ToolKit?

• Thermal Design Worksheet. An interactive, graphical worksheet designed to speed cooling tower thermal calculations. Set your own values for wet bulb, range and altitude, and plot your own demand curve on virtually any printer. • Performance Evaluator. Evaluates induced draft counterflow and crossflow cooling tower performance with field acquired data. Fully compliant with the latest CTI ATC-105 test code (performance curve method).

• Air Properties Calculator. Fully ASHRAE compliant, using latest psychrometric property routines. • Detailed Help Files. How-to-use help for typical applications is just a click away. What does the CTI ToolKit do for me?

• Predicts off-design performance with the Demand Curve Tab application. Answers what-if questions like, how much will my leaving water temperature change if I increase my waterflow 10%? Decrease my range 15%? • Evaluates cooling tower performance and acceptance tests. • Performance Curve Tab: application allows the automatic calculation of cooling tower performance using the performance test method of the CTI ATC-105. Automatically solves the iterative calculations for the exit air temperature and psychrometric properties to compute the test L/G as required by CTI ATC-105. Accurately interpolates between curves and generates all the necessary crossplots to determine the overall Tower Capability.

• Demand Curve Tab: application speeds the evaluation of the characteristic curve method. This application allows the calculation of the overall Tower Capability when manufacturer's performance curves are unavailable. High quality demand curve pages produced on any printer for your exact set of design conditions at any altitude. • Produces your own performance curves from field test data. Using the Demand Curve Tab application and a single test point, create a set of performance curves along with any spreadsheet.

• All without picking up a pencil! System Requirements Microsoft Windows 95/98, 2000, XP, Vista, and Windows 7. Product Unit Price Title CTI Member Price Non-Member Price CTI ToolKit Version 3.2 (single user license) $395 $450 CTI ToolKit Version 3.2 (Upgrade from V3.0) $25 $40 CTI ToolKit Version 3.2 (Upgrade from V1.0 or V2.0) $95 $120 Processing Fee Shipping via UPS Ground UPS 2nd Day Air UPS Next Day Air Mail International $15 $28 $43 TBD Please allow 1-2 weeks for delivery. Multi-user site licenses and educational institution pricing available on request, call 281-583-4087. To view screen shots.

To download a demo. To view order form.

Abstract A survey of wet cooling tower literature was performed to develop a simplified method of cooling tower design and simulation for use in power plant cycle optimization. The theory of heat exchange in wet cooling towers is briefly summarized. The Merkel equation (the fundamental equation of heat transfer in wet cooling towers) is presented and discussed. The cooling tower fill constant (Ka) is defined and values derived.