Over 52 years of service to the evaporative cooling industry
Many companies which no longer have the luxury of having an experienced cooling tower engineer on their staff now use our services. Our client list includes some of the most notable engineer-constructor firms in the world, major power producers, refineries, consulting engineers, developers, tower manufacturers, cooling tower repair firms, and industrial and air conditioning users.
Custom developed thermal rating programs for both counter flow and cross flow towers are used to provide quick, accurate tower performance predictions. Computerized standard specifications are adapted to your unique requirements. It is usually much less expensive to make a computer study than field tests, and while field testing may tell you what your tower is doing now, it does not predict what it will do after you make additions or modifications.
Although we are the leading independent expert in cooling tower thermal performance, we also have 52 years experience in every aspect of the cooling tower industry from component design of structures, mechanical equipment, and other tower features to practical solutions for citing and installing your tower complete with all the controls and associated equipment.
SERVICES WE HAVE PROVIDED FOR OUR CLIENTS HAVE INCLUDED:
SOME EXAMPLES OF THOSE WHO HAVE BENEFITED FROM OUR SERVICES
A COMPLICATED COOLING TOWER
The design of the tower shown above included the following:
INDUSTRIAL QUALITY FOR
Evaporative air pre-cooling can significantly decrease your initial capital costs, operating costs, and in some cases allow you to do what otherwise would be impossible. Standard air cooled heat exchangers operate on the dry bulb temperature as the lowest temperature sink for disposal of heat. By using evaporative sections in advance of the air cooled exchanger it is possible to reduce the dry bulb to near the wet bulb temperature by evaporating moisture into the air stream, thus either reducing the amount of surface required, reducing the operating temperature, or increasing the number of hours you can operate at the design dry bulb temperature. Often the use of an air cooled heat exchanger with evaporative air pre-cooling sections can be used where a cooling tower that requires much more year-around water supply would preclude the building of a plant.
We have over 52 years of experience with evaporative cooling equipment. Our computerized sizing system allows accurate design at any elevation and inlet design condition. Our attention to details meets the requirements of the media manufacturer for elimination of leaks, drips, scaling splash-out and proper distribution. Additionally, the distribution of each system design is operated in the factory test unit prior to fabrication of the final product to assure you of a properly functioning field installation.
As a standard cooling media we use Munters Corporation Glasdek material. Performance and pressure drop are typically defined as shown in the attached "Efficiency" and "Pressure Drop" graphs with further adjustments made for high altitude applications. For preliminary design investigations please consider that most applications will be economically viable with 6" and 8" thick media operating at about 1.5 gpm per square foot of media plan area and a face velocity of 650 fpm maximum. The maximum net height of each media section generally cannot be more than 10 feet. Applications requiring greater height will require split distribution systems. Standard structures are all welded #304 stainless steel. If you are investigating the use of evaporative air pre-cooling sections, please contact us for assistance. We would be pleased to provide you with information on reducing fan power requirements, make-up and blow-down requirements, and where to obtain proper information on water treating and general layout requirements.
IS DEFINED AS THE REDUCTION IN DRY BULB TEMPERATURE AS A PERCENTAGE OF THE
DIFFERENCE BETWEEN THE DRY BULB TEMPERATURE
NO WATER CARRY OVER
Air cooled heat exchanger applications are designed for air velocities which do not require drift eliminators. Gas turbine inlet applications are designed with securely fastened drift eliminators
NON CORROSIVE CONSTRUCTION
All welded stainless steel frame
PVC pipe manifolds and fittings
Stainless steel air inlet screens
Munters Glasdek or Celdek media
0.1 to 0.5 inches w.g.
We will custom design structural attachment beams and channels, flashings, doors, piping, fans, pumps, valves, flow meters, water treatment equipment package with controls and filter, winter by-pass louvers and freeze protection, etc. to meet the specific needs of your project. Special attention is given to making each part accessible for maintenance.
STANDARD FEATURES OPTIONAL EQUIPMENT
WELDED STAINLESS STEEL FRAME WATER TREATMENT EQUIPMENT
BLOW-DOWN FITTINGS BALANCE VALVES
GLASDEK OR CELDEK MEDIA
PVC PIPE MANIFOLDS PUMPS
DOUBLE DISTRIBUTION PADS
WEST COAST ENGINEER:
"WE INSTALLED 40 SECTIONS IN
OVER 49 YEARS OF EXPERIENCE WITH EVAPORATIVE COOLING EQUIPMENT
EVAPORATIVE COOLING WITH FOGGING NOZZLES
We provide design, consulting and supply (though one of our associate companies) of evaporative cooling fogging nozzle systems for large air cooled heat exchangers. These installations require about the same design parameters as listed above for wet surface sections, but the cooling efficiency is limited to about 50% to assure all the water is evaporated. Two distinct advantages are no additional pressure drop and no start-up time required. The designs usually include high pressure pumps, required RO water supply, and controls. Nozzles are high technology to provide very fine fog droplets that are staged to evaporate in only 2 to 4 feet from the nozzle, thus minimizing or eliminating wetting of the surrounding structure, fans and coils. The first cost of this type of system is generally less than wet surface sections, but wind effects can affect the operation, and the parasitic pump power is higher.
PSYCHROMETRIC PROBLEM SOLVING PROGRAM
Much more than just a data point look-up tool.
Use it to quickly and accurately step through your process, changing the pressure as you go, as actually happens in the real world, combine air streams, add or remove heat, and quickly solve evaporation or condensation problems. Solve psychrometric and heat transfer problems for air pollution control scrubber systems, HVAC, chemical processes, evaporative cooling with just a few key strokes. No more having to read a single pressure chart until your eyes pop out.
Condensation and evaporative heating or cooling calculations are made easy. The amount of water added or condensed is calculated. Flow entry can be in CFM or pounds of dry air or pounds of mix. The psychrometric program calculates the properties of moist air at any elevation to 20,000 feet and for pressures to 35 psia. Temperature range is from -80oF to 2,000oF.
The Mol Weight and Specific Heat can be revised to allow calculations of properties of other moist gases (such as flue gases). Hot gas scrubbing calculations are made easy.
Easy use: The program saves your last results or inputs to save you time in going to the next portion of your problem. Extensive error warnings help keep you from obtaining false results. You can add notes to your print-out to explain your process or project. Results can be saved to a file for import to a spread sheet or other program for further calculations.
THERMAL PERFORMANCE PREDICTION PROGRAMS
An example of Output from Counter Flow Cooling Tower Thermal Performance Prediction Program. The program includes a built in estimator and help function guidelines for practical tower design parameters. It is all you need to know to check the size of a cooling tower design or make an economic evaluation.
CALCULATE MECHANICAL DRAFT TOWER PERFORMANCE: Included are data for the most commonly used new tower fans, fills and eliminators. Also included are data for many old fills and other components so you can thermally analyze existing towers. What used to take hours now takes seconds.
OBTAIN ACCURATE PREDICTIONS: Use either standard Cooling Tower Institute performance theory (Merkel Theory) or an advanced theory which has built in hot water correction and adjusts for other traditional inaccuracies that might lead to an undersized tower.
EASILY INVESTIGATE ALTERNATE OPPORTUNITIES: Study alternate tower configurations, estimate the power evaluated cost, or find the best way to up-grade. Use the cost estimator to investigate the optimum use of fan and pump power as compared to installed capital cost. Use the help screens to be sure the design is within normal design parameters for good air and water distribution, minimum drift and windage losses. Predict performance at high altitude.
US. If you have a cooling tower
question, send us e-mail. We will answer it.
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