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First Filipino Canad Group

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Thomas Richardson
Thomas Richardson

X Particles 2.5 Serial Number REPACK Cracker

New serial number system independent of CINEMA 4D : license management and entry directly into X-Particles with no more need for serial number updates with new CINEMA 4D releases or having to add X-Particles to the MAXON license server.

x particles 2.5 serial number cracker

OBJECTIVES:Students will be able to:1. Understand energy waste due to improper filter sizes2. Properly size return air filters.LESSON / INFORMATION:All of the air which enters the HVAC system enters through the return air filter. The filter must be theoretically sized according to the cfm (cubic feet per minute) requirement of the system. A filter that is too small will cause a number of problems. The filter will clog very rapidly if undersized and reduce air flow. Air velocity also becomes critical with reduced size and dirt will pass through instead of staying in the filter. The dirt will eventually get to the blower wheel and reduce surface area or on the evaporator coil and restrict air flow. A filter and grill that are too small will vibrate and whistle, which can be annoying. The system is trying to draw in the designed air quantity and if the filter will not allow flow, air will be drawn in from any possible crack. Every system, no matter how air tight you construct it, will have small cracks through which dirty, warm air will enter the system as static pressure increases. A large surface area filter will negate the effect of these cracks by having a lower static pressure and lower air velocity.The recommended minimum filter surface area is 2.50 cubic feet per minute (cfm) per square inch of filter area.Example 1:2000 cfm 250 inches = 800 square inches or 20" X 40" filter grill.The maximum allowable filter velocity is 300 feet per minute (fpm) on disposable filters. The above example would yield 360 fpm and a disposable filter could not be used. For best results, use 2.00 cubic feet per minute per square inch of filter area.Example 2:2000 200 inches = 1000 square inches of 40" X 24" filter. Usually two grills 20" X 25" each would be used.The second formula works in all residential applications. Using 2.00 cfm per square inch the velocity of air across the filter will not exceed 300 fpm in 1 through 5 ton units. In applications of limited space, the disposable filter may be located in the return duct. When using duct mounted filters, consult the manufacturer's literature on the return grill sizing to prevent noise and reduce restrictions.In residential applications, we find many types of air filters:Figure 1. Disposable Filter Figure 2. Washable Permanent Filter Figure 3. Media Type Filter Figure 4. Electronic Air Filter The Media type is more efficient than the disposable and the electronic type removes particles to .1 micron.ACTIVITY:Demonstrate effects of reduced filter area with a 1200 cfm blower connected to a 20" X 30" filter grill housing with a standard 20" X 30" disposable filter.1. Set up blower, measure and record motor RPM amp draw.2. Measure and record air velocity and volume.3. Block off surface area of filter grill with cardboard or comparable material - 20" X 20".Measure and record:A. Motor RPM ________B. Motor Amp Draw ________C. Air Velocity ________D. Air Volume ________E. Noise Level ________4. Block off the surface area as in step 3 to 20" X 15".Measure and record:A. Motor RPM _______B. Motor Amp Draw ________C. Air Velocity ________D. Air Volume ________E. Noise Level _________5. Block off the surface area as in step 3 to 20" X 10".Measure and record:A. Motor RPM _______B. Motor Amp Draw ________C. Air Velocity ________D. Air Volume ________E. Noise Level _________Comments or questions to: TechAsmt@LA.GOV

To generate a model of the propagation saw test, we used the three-dimensional discrete element method (DEM). DEM, first introduced by Cundall and Strack26, is a numerical tool, consisting of a large number of discrete interacting particles, commonly employed to study large deformations in granular-like assemblies. We used the PFC3D (v5) software ( ).

The study illustrated that the use of fireworks during Diwali festival creates an additional major source of pollution during Diwali month than other sources. It has been found that during 2017, more stubble burning practices, use of fireworks played an major role in high emission of these pollutants. Whereas, in 2018 although the stubble burning practices were reduced, the adverse meteorological conditions (lower vertical wind speed and ambient air temperature) during Diwali in 2018 resulted in more suspension of these particles for a longer period in ambient air. The study found that the concentration of air pollutants was reduced during 2018 as compared to 2017, may be due to comparatively low sale of fireworks, difference in the month of Diwali celebration and less crop residue burning practices. Also, a substantial reduction in AQI was observed from 2017 to 2018 as 35%, 22% and 43% during pre-Diwali, Diwali and post-Diwali, respectively. This study clearly shows that how even after knowing the adverse effects of burning crackers people still indulge in this act. The study suggests that it is time we all must stop taking pleasure in such trivial things and think about the bigger picture. Diwali is a beautiful festival and we must retain its beauty and sanctity by saying no to crackers. We must not ruin the fun by polluting the environment and incurring health problems. We must remember that this trivial act of ours is becoming a cause of global concern. It is contributing to global warming which is one of the biggest threats to our environment. There is a need for adopting the rules and policies formulated by government bodies as a responsible citizen. It is time to understand that this is not adding to the celebration, this is only adding to the pollution and causing serious harm to our planet.


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