IEM seminar

Today I went to a half day seminar organised by IEM, Malaysia and sponsored by Welcome Air Tech (Saiver AHU manufacturer).

I was there with my fellow colleague. My boss is one of the speaker for the title of Filtration system in Air Handling Unit (AHU).

In the first presentation, there is a speaker from Hong Kong. He was explaining the Eurovent standard to us on the energy conservation in AHU. Perhaps, the english spoken was not so clear but I was able to record down some notes. The main important discussion in this presentation was the testing criteria requested by the Eurovent Standard, EN1886 and EN13053. The testing requested in the standard includes the mechanical strength of the casing, filter bypass leakage, air leakage, thermal transmittance and thermal bridging, acoustic insulation and coil performance. Perhaps, this information we can get it from the website of www.eurovent-certification.com

Second speaker also from Hong Kong. He was presenting the issue of acoustic concern in the AHU and how its help to conserve the energy usage. Perhaps, there is a issue of type of motor used in the AHU which will affect the acoustic level. There are two type of motors are discussed, which are DIDW- backward curve fan and Belt driven motor. However, I was not able to record all the comparison between them. May be someone attended the seminar may helps me to write in.

Next, there is a speaker from Welcome Air Tech presented the AHU selection program module. That program is very useful for customer and AHU manufacturer to select the AHU as per their requirement. As been told, this program is designed from Saiver, Italy. It is very fanstatic that the software can directly print out visual drawing of AHU and user can change the parameter of dimension, temperature and others in the software to select the best and suitable AHU for the project.

Lastly, my boss was presented the Air Filtration System in the AHU system. He show a lot of pictures and technical information about the filter, including the standard discussed in the filter field. The picture has a very clear visual viewing for problem faced in the real world. The picture also has the message for the user and owner that if the filters are not well maintained, the air quality in the spaces will be highly affected by air pollution.

The presentation also includes the filter installation in AHU. He also discussed about the filter servicing type, upstream service and downstream service. This servicing method will affects the filter types used in the AHU. Upstream/ downstream service also has its advantages and disadvantages. May be we can look into next time.