Thanks for the very prompt and friendly advice from that lovely country of
yours. I will be pleased to keep your email address on my Aussie file" .
I just wanted to give you an update and some positive feedback on E-312 heat exchanger. E-312 is the
big, 400 lb steam Inconel heat exchanger at our operating site which cost us $1.5MM. The old unit was 25 plus years
old and we were having a lot of vibration issues and quite a few tube failures due to age. You suggested a couple of
modifications for the new exchanger back in 2006. We ordered the heat exchanger in late 2006 and we finally received
it this June and promptly installed it. Some of the changes were 3 steam nozzles vs. one and double the number of baffles
(from 3 to 6). These changes have had a significant impact on the heat exchanger performance. We are currently
using 20% less steam for the same feed rate, we have very little vibration and the entire unit is much quieter.
The new exchanger is outperforming the old exchanger even when it was in pristine condition.
Thanks for your help and suggestions.Gail Piper Project Manager
The Plastics business would like to recognize Kam
Hau for his past and continued support on several capital projects. His expertise in heat exchanger design is an asset
to the company. Below is a summary of two of his recent projects.
A plant needed to replace a shell and tube preheater due to plugging. Kam suggested to use a welded plate
and frame exchanger for this service. The unit is performing above expectations, costs less and requires less space
than a shell and tube exchanger. Business plans to monitor the performance of this exchanger and leverage the design
to several of our other existing plants.
A plant could
not achieve the desired vacuum in the devolatilizer at high rates. Result was product with high residuals at high
rates. Kam completed a study of the condensing and vacuum system and recommended to modify the baffles in the partial
condenser, replace the final condenser, and relocate the first stage vacuum blower. The vacuum in the devo is now sufficient
at high rates to achieve the desired residual levels in the product. Scott
TiplerGlobal Process Engineering Technology Leader
I would like to recognize you for the work you did in helping our
production plant to successfully put in service the partial condenser after being of line for 30 years. Your expertise and
technical support helped us convincing the plant that this was a good deal. Now everybody is happy and most importantly we
are seeing benefits: compliance with Tech Center guidelines, less reactor tube fouling and lower raw material losses. Great
work! Thank you.LUCIANO BLAZINA Business Technology Center
I think the review by Kam uncovered issues which we have resolved. I think the final design is more robust than the
original proposal, with only minor changes.
Thank you all for
your professionalism and patience on the issue of the review of the design of the ethane vaporizer.
I have an apology...I should have involved Kam several weeks earlier.
Anyway, GOOD WORK!Bill PickGlobal Process Engineering Technology Leader
Thanks to Kam's design of the vacuum
condensing system, the new production train is able to pull a vacuum of 2.3 mbar(abs) or 1.7 mmHg(abs) in the devolatilizers
(this represents 99.8% of total vacuum!) resulting in a residual monomer level of 50 ppm. This is the best ever achieved
by any of our similar production plant in the world. Congratulations to Kam for being able to deliver this incredible
value to the business. Angela SieloffProcess Engineering Activity Leader
Thanks again for your help on our project.
Needless to repeat that I and many others will miss your expertise
and willingness to share it.
Yours sincerely, Thomas
LuebbeBusiness Technology Center
I want to thank you VERY much for working as part of our project team and helping my very green engineers with the
exchangers (49 of them). Without you we would be in big trouble. Real big trouble. I wish there
was something meaningful I could do for you both to show my appreciation (can't afford two new BMW's). I'll
try to think of something.
Have a good day eh,Lance
TicknerLead Process Engineer
Thanks for dropping what you were doing to help our operating plant in an emergency situation. The plant went
down due to a failed tantalum heat exchanger. Engineering was called to provide support. Three options were being perused
in parallel to help the plant make the correct decision. Within one day, all three options were evaluated and the plant was
able to make a decision before the other exchanger was removed. Thanks you for helping in the decision making process.GLORIAN
A HUMMELProject Engineer
Thank you for the prompt and helpful review. I know our production plant is anxious to get the exchanger purchased
so it can be installed in time for summer use, so your speed and knowledge are appreciated.
Regards,Tifne PalsProcess Engineer
Great work - thanks for your attention to detail and your diligence in investigating
all of the options. I know it required a lot of effort from each of you. Doreen Keptner