Sorry, I am busy in this coming week so I am hard to share the knowledge of filter by these time.
Perhaps, currently i am busy rushing out a project confirmation documentation. You should know that doing a project in cleanroom or pharmaceutical room is very critical and rushing. In these room, many technical specification should be ready to support your provided products. A lot of documentation and certification you should be ready for the project.
Any documentation need to have approval/ certificate to crtify that this documentation/ test report is not fake. Any problem happened in the cleanroom and pharmaceutical room would be highly traceable and reponsibled by the related team. It is very critial for single item you provided to this project, because for pharmaceutical room, it is deal with human life and for cleanroom, it deal with machinery and product performance that produced under the environment. Therefore, the items that supplied should meet certain requirement refer to ISO 14644 standard or GMP practice standard and also the User Requisition Sheet (URS) which compiled by the user or owner.
So, doing a project is very tough. And take note that doing project you will always fae the chanllenge of time, user will rushing you for their item in hurry. Many pojects also like that, this is always due to the planning and management of the project manager.
However, I am not only busy on the technical documentation preparation for the project. I also have to be internal technical support engineer for our sales executive. Besides that, I also have to monitor and arrange and planning for production schedule of our factory (include all the production stuff management like BOM assembly into the computer system). I also doing the work for purchaser, finding new supplier with lower price, and sourcing for the new design of product raw material. So far, I aslo been given task to create a new item code for any single item which we do not have their item code in the computer system. I am also doing the costing and pricing for our sales team on any odd size products (customade product) and sorucing any item that is not avaiable in our factory.
Therefore, from the flow chart of operation, my character is will appear in a number of time. After sales get the inquiry, my character start with techical support, sourcing, item code creation, pricing, production, deliver monitoring...
Haha, so now plus one project preparation, therefore, i will kindly stop a while on writting blog... Haha... Wait until I finish it first.
Friday, May 8, 2009
Wednesday, April 29, 2009
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.
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.
Tuesday, April 28, 2009
World of filtration- Part 2
Hihi, come again the part 2 of the filtration knowledge sharing... As per mentioned previously, Air filter is divided into primary, secondary, HEPA, ULPA and SULPA filter.
Today we may talk about the primary filter. Primary filter commonly available in the market is disposable type and washable type. This type of filter basically used to filter the bigger particles of the air stream (5um to 10um) and prolong the filter life for high efficiency filter.
Disposable type filter means as per its name. It is disposed after the final pressure drop of the filter is exceed. Therefore, this type of filter should be produced by environmental friendly material. It is proposed to the manufacturer that the proper disposable method of this kind of filter should be listed and presented to the user. This helps user to have proper dispose them into the environment. Basically, now the user usually just disposable into their rubbish bin. Do you know that this filter is made of the sythetic fiber as their media. And synthetic fiber will dissolve into powder after expose to the UV light (sun light). The powder of the fiber will travel along the environment by the wind, this will polluting the air. Perhaps, I may suggest to buried the media into the ground.
Next, this type of disposable filter frame is made by the moisture resistant card board because this filters are installed in the Air Handling Unit where the relative humidity is very high. But I can tell you that many manufacturers in the world are not practising this very well. They may only apply the simple card board for cost saving purpose. I also highly suggest that we can have a recycle used paper board for this purpose with reasonable price.
However, in the commercial issue, many manufacturers thinking of cutting cost and production process, many issue of the proper filtration is neglected. We have to know that pre filtration is very important to control the performance of high efficiency filter. If we are not taking good care of pre filtration, then the next stage (high efficiency filter) will be affected.
Oh.. Sorry.. Normally primary filters are allocated into G class (according to EN779 standard) or MERV 1-8 class (according to ASHRAE 52.2).
Besides that, for this disposable type filters, in commercial they are made by pleated media to increase the face area of the media, so that the life of filter can be prolonged.Perhaps, this also may reduce the initial pressure drop of the filter.
However, in the market today, some manufacturer plan to cut down the cost of production, the number of pleats for the filter is reduced to provide the lower cost to users. Such as 24 inches x 24 inches x 2 inches disposable type should have 28 pleats, they reduce the pleats into 15 pleats/ 21 pleats. This action is not offended but please take note that this will reduce the face area of media to filter the particles. Consequence reduce the life of the filter. Therefore, in this practice, you may have to frequently change the filters (however, in Malaysia, many companies don't constantly monitor their filter). Frequently change the filters may end up with higher maintenance cost (even though the initial cost is lower). The maintenance cost includes labor cost, filter cost, production shut down cost and others. If we insist to run the filter under its final pressure drop, we have to pay for the high energy cost on running the blower.
Today, until here lar...
Today we may talk about the primary filter. Primary filter commonly available in the market is disposable type and washable type. This type of filter basically used to filter the bigger particles of the air stream (5um to 10um) and prolong the filter life for high efficiency filter.
Disposable type filter means as per its name. It is disposed after the final pressure drop of the filter is exceed. Therefore, this type of filter should be produced by environmental friendly material. It is proposed to the manufacturer that the proper disposable method of this kind of filter should be listed and presented to the user. This helps user to have proper dispose them into the environment. Basically, now the user usually just disposable into their rubbish bin. Do you know that this filter is made of the sythetic fiber as their media. And synthetic fiber will dissolve into powder after expose to the UV light (sun light). The powder of the fiber will travel along the environment by the wind, this will polluting the air. Perhaps, I may suggest to buried the media into the ground.
Next, this type of disposable filter frame is made by the moisture resistant card board because this filters are installed in the Air Handling Unit where the relative humidity is very high. But I can tell you that many manufacturers in the world are not practising this very well. They may only apply the simple card board for cost saving purpose. I also highly suggest that we can have a recycle used paper board for this purpose with reasonable price.
However, in the commercial issue, many manufacturers thinking of cutting cost and production process, many issue of the proper filtration is neglected. We have to know that pre filtration is very important to control the performance of high efficiency filter. If we are not taking good care of pre filtration, then the next stage (high efficiency filter) will be affected.
Oh.. Sorry.. Normally primary filters are allocated into G class (according to EN779 standard) or MERV 1-8 class (according to ASHRAE 52.2).
Besides that, for this disposable type filters, in commercial they are made by pleated media to increase the face area of the media, so that the life of filter can be prolonged.Perhaps, this also may reduce the initial pressure drop of the filter.
However, in the market today, some manufacturer plan to cut down the cost of production, the number of pleats for the filter is reduced to provide the lower cost to users. Such as 24 inches x 24 inches x 2 inches disposable type should have 28 pleats, they reduce the pleats into 15 pleats/ 21 pleats. This action is not offended but please take note that this will reduce the face area of media to filter the particles. Consequence reduce the life of the filter. Therefore, in this practice, you may have to frequently change the filters (however, in Malaysia, many companies don't constantly monitor their filter). Frequently change the filters may end up with higher maintenance cost (even though the initial cost is lower). The maintenance cost includes labor cost, filter cost, production shut down cost and others. If we insist to run the filter under its final pressure drop, we have to pay for the high energy cost on running the blower.
Today, until here lar...
Monday, April 27, 2009
What is Air Filter
i think it will be bored if there is no picture to show you on the filter unit. Briefly as below,it is the whole range of air filtration system.
Air filtration is divided into primary filters, secondary filters, Semi HEPA filters, HEPA filters, ULPA filters and SULPA filters. The separation of filters is depend on the standard of you referring. There are ASHRAE standard, IEST standard, EN standard, JIS standard and others.
Air filtration is divided into primary filters, secondary filters, Semi HEPA filters, HEPA filters, ULPA filters and SULPA filters. The separation of filters is depend on the standard of you referring. There are ASHRAE standard, IEST standard, EN standard, JIS standard and others.
World of filtration- Part 1
Hai.. Hai..
Again to express myself, I am currently working as an engineer in a filtration company. This filtration company is well known Malaysia brand. It represent Malaysia in the world market. We are so proud on this company brand.
Perhaps, for the part 1 of world of filtration. We shall start with some general information on filtration.. Oh.. first of all, we are talking on Air filtration in this parts (because I am doing air filtration).
I would like to kindly welcome any comment, discussion or question on this title. We shall share our knowledge of know how in the filtration field.
Air filtration is a very important system in the HVAC design. Air filtration purposely to filter the particles from the atmoshphere and particle generated from being (human, animal, insects and any others). In other word, it is a way to keep our air clean and controlled.
If we are still remember the tragedy of SARS which happened years ago. Air filtration is highly requested to filter the air (filter the virus by HEPA filter) in the ambulance (reserached done by Taiwan). Air filtration is also promoted to use during the haze in South East Asia. Air iflter also used in Tubistis patient room. Air filter is also widely used in cleanroom design for the semiconductor company, pharmaceutical industry and hospital (Operating Theatre).
Cleanroom is a space that some of the parameters (humidity, temperature, air change per hour, ventilation, cleanliness) is controlled within the required specification.
In short, Air filtration is highly requested for the world right now, where the air is polluted, the air is not clean. We are breathing in a lot of polluted air outside the room (however, somewhat the air in the room also not well controlled).
Haha, so are you still want to continue breathing unconditioned/ uncontrolled/ polluted air in your office and your living building (don't talk about outside because it is hard to be controlled)? If you want to make a change, please learn more about air filtration, how to reserve a clean air in your living area.
Again to express myself, I am currently working as an engineer in a filtration company. This filtration company is well known Malaysia brand. It represent Malaysia in the world market. We are so proud on this company brand.
Perhaps, for the part 1 of world of filtration. We shall start with some general information on filtration.. Oh.. first of all, we are talking on Air filtration in this parts (because I am doing air filtration).
I would like to kindly welcome any comment, discussion or question on this title. We shall share our knowledge of know how in the filtration field.
Air filtration is a very important system in the HVAC design. Air filtration purposely to filter the particles from the atmoshphere and particle generated from being (human, animal, insects and any others). In other word, it is a way to keep our air clean and controlled.
If we are still remember the tragedy of SARS which happened years ago. Air filtration is highly requested to filter the air (filter the virus by HEPA filter) in the ambulance (reserached done by Taiwan). Air filtration is also promoted to use during the haze in South East Asia. Air iflter also used in Tubistis patient room. Air filter is also widely used in cleanroom design for the semiconductor company, pharmaceutical industry and hospital (Operating Theatre).
Cleanroom is a space that some of the parameters (humidity, temperature, air change per hour, ventilation, cleanliness) is controlled within the required specification.
In short, Air filtration is highly requested for the world right now, where the air is polluted, the air is not clean. We are breathing in a lot of polluted air outside the room (however, somewhat the air in the room also not well controlled).
Haha, so are you still want to continue breathing unconditioned/ uncontrolled/ polluted air in your office and your living building (don't talk about outside because it is hard to be controlled)? If you want to make a change, please learn more about air filtration, how to reserve a clean air in your living area.
New message from me....
Haha, I think I m losses myself in this blog. I missed up so many interesting and valubale experience to share in this blog. So sad.
I was a long time journey away from this blog. i am coming back to share and express my learning and experience observe during my journey of working.
It has been a year of learning as per calculated from last year (after my graduation). I see some of my friends are changing their career here and there within this year, some of them were just losing their job in this economic crisis.
How about me? haha, I am still in the same company as a position of any things. Haha. Any thing because I am doing some things in the company.A lot of work load burden on my shoulder.
Actually, I am given a great oppurtuninty to make decision in the company but I scare and I worry... My working experience is little compare to others colleagues. Why me? I just want to be a learner for my future, seem like now I am doing in stead of learning.
However, Slowly I will presented my story of learning in this company. Start with my little position, engineer and my learning on filtration...
I was a long time journey away from this blog. i am coming back to share and express my learning and experience observe during my journey of working.
It has been a year of learning as per calculated from last year (after my graduation). I see some of my friends are changing their career here and there within this year, some of them were just losing their job in this economic crisis.
How about me? haha, I am still in the same company as a position of any things. Haha. Any thing because I am doing some things in the company.A lot of work load burden on my shoulder.
Actually, I am given a great oppurtuninty to make decision in the company but I scare and I worry... My working experience is little compare to others colleagues. Why me? I just want to be a learner for my future, seem like now I am doing in stead of learning.
However, Slowly I will presented my story of learning in this company. Start with my little position, engineer and my learning on filtration...
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