PSC motors are only used in those applications where the
airflow from the FPTU fan is expected to be constant.
Since the air is supplied at relatively low velocities (25 to 35 fpm, 0.13 to 0.18 m/s) and only through a part of the ceiling, the unidirectional flow can be maintained mostly in the core of the air jet; whereas, in the other regions of the room recirculating
airflow patterns are formed, including at the periphery of the supply air jet (Khankari 2017a, Khankari 2017b).
The application of electronically commutated motors (ECMs) into series FPTUs has made it possible for engineers to specify FPTUs that can provide significant energy savings over fixed
airflow PSC FPTUs.
Figure 8 presents the relationship between the aerodynamic resistance and
airflow distribution ratio when the
airflows in the 8-channel cyclone are regulated by quarter-rings without holes.
Using flow designing fluid simulation software Solidworks Flow Simulation flow analysis of symmetrical and asymmetrical profile blades at different
airflow velocities was performed.
The test object is instrumented with a sensitive balance to measure the forces generated by
airflow; or, the
airflow may have smoke or other substances injected to make the flow lines around the object visible.
Iteration 1 reduced the percentage of satisfactory ASTM metrics by 7%, but further tuning of the model with diffuser
airflows in iterations 2 and 3 increased it by 28%.
The Teflon
airflow distributor allows the container to run in contact with the surface and this can be customised to suit the line speed and container, in order to achieve maximum cleaning.
In general,
airflow can be analyzed using three types of methods: experimental, theoretical, and numerical simulation.
Keeping pace with the ever changing finishing market,
Airflow has developed a comprehensive product range to meet the varied requirements of companies involved in powder coating.
The basic difference between left- and right-nostril sniffs depends on
airflow, explains Noam Sobel of Stanford University.
However, the air temperatures (Figures 3 and 6) and total
airflows (Figures 4 and 5) are different between the two limits.
