CleanAir’s Mike Womack serves as the Cooling Technology Institute (CTI) Thermal Certification Administer with technical and administrative oversight of CTI’s thermal certification program. Under this program, participating tower manufacturers have their published thermal ratings certified by CTI under the CTI STD-201 program. These ratings apply to model lines of factory assembled towers. CleanAir engineers also conduct the testing of these model lines to verify compliance with the program.
Thermal Performance Testing
CleanAir is licensed by CTI to evaluate the thermal performance of individual cooling towers under the Acceptance Test Code-105 (ATC-105). CleanAir performs these tests with calibrated CleanAir code-compliant equipment on a worldwide basis. These tests are typically performed to evaluate contractual acceptance of new or rebuilt towers. Testing may also be used to evaluate the performance of older towers in order to evaluate the need for tower modification. New tower performance is evaluated against OEM performance guarantees. CleanAir can generate predicted performance curves from collected test data for older towers.
Drift Emissions Testing
CleanAir is licensed by CTI to evaluate the drift emissions of individual cooling towers under the Acceptance Test Code-140 (ATC-140). Tests are typically performed to quantify emissions for regulatory compliance, contractual acceptance, or drift deposition. CleanAir can also determine Particulate Matter fractions (PM10 and PM2.5) from tested towers.
Water Flow Measurement
CleanAir performs water flow rate measurements required for cooling tower thermal performance, sound, plume abatement or drift emissions tests via calibrated Pitot tube traverse of the main supply pipe or risers at the cooling tower. We can perform pitot tube flow measurements in pipes up to 20 feet in diameter.
In 2018, CleanAir introduced a new elliptical pitot tip for water flow measurement. The tip was designed and tested by CleanAir in a study funded by the Cooling Technology Institute (CTI), and provides a new industry standard, replacing the Simplex type pitot which is no longer commercially available. The elliptical tip provides improved accuracy in disturbed flow situations and provides less sensitivity to Reynolds numbers. MORE HERE
CleanAir also has the unique capability of water flow rate measurement via dye-dilution techniques for applications where pitot taps cannot be installed in a straight run of pipe. Dye-dilution flow measurements are especially well suited for “once-through” applications to determine pump, condenser or helper cooling tower flow rates. The dye-dilution measurement technique is an accepted approach in both ASME and CTI code tests.
CleanAir is licensed by CTI to evaluate the sound testing of individual cooling towers under the Acceptance Test Code-128 (ATC-128). This test code provides guidance for the measurement of near field and worker exposure type sound measurements. CleanAir performs these tests with calibrated CleanAir code-compliant equipment on a worldwide basis.