Friday, March 25, 2011
Crispin
Masters and Ph.D Students Wanted
Wednesday, March 23, 2011
Do you have intention to further study in Chemical Engineering? If you have a chemical engineering degree and would like to pursue your masters or Ph.D degree, now is your chance. My wife, Dr. Mazura Jusoh from Faculty of Chemical Engineering, Universiti Teknologi Malaysia, is searching for a few post graduate students and this is an opportunity for those who are interested.
The field is obviously Chemical Engineering which will focus on Separation Technology. To be more specific, you will explore the fundamental and science of Progressive Freeze Concentration, a field which is still not explored in Malaysia.
Financial assistance will be provided for the first few students only. So, to grab hold of this offer, you need to act fast.Masters duration - Full time research - 2 years.
Ph.D duration - 3 years.
Interested candidate can write and send your CV to the following email address:
mazura[alias]cheme.utm.my.
Here is an example of a related study of this field...
Abstract : DEVELOPMENT OF A NOVEL DESIGN FOR PROGRESSIVE FREEZE CONCENTRATION PROCESS
Industrial wastewater may well be treated by freeze concentration, a process which freezes or crystallises out water content as pure ice crystals and leaves behind a highly concentrated solution in a smaller volume. In conventional suspension freeze concentration (SFC) whereice crystals formed as a suspension in the mother liquor, separation of the solid-liquid mixture is difficult and costly. The size of ice crystals is still very limited and the seeding process requires usage of scraped surface heat exchangers (SSFE), which is significantly expensive and accounted for approximately 30% of the capital cost. Progressive freeze concentration (PFC) invented later is believed to provide cost saving and simplify the subsequent ice-liquid separation as ice crystals are formed as a layer or a block on the cooling surface. Quest for a design providing convenience and good efficiencies continues, and in this study a helical structured copper
crystalliser was developed and fabricated named Multi-wind Crystalliser (MWC). Effects of several operating conditions on the performance of MWC in context of wastewater treatment were then investigated including circulation flowrate, initial solution concentration, coolant temperature and circulation time. The performance of the design was evaluated by three dependent variables including the effective partition constant, K, calculated from the volume and concentration of the solid and liquid phase. Two other parameters were ice purity and solution volume reduction. A process optimisation was also performed thereafter employing STATISTICA to produce optimum conditions in favour of the stated independent variables. As the crystalliser designed involves heat transfer, the overall heat transfer coefficient was also calculated through temperature profiling subsequently generating a prediction model for ice crystal mass. At the end of the research, a new crystalliser design for PFC is established and an observation of how the operating conditions affect the performance of the system was obtained. Optimum operating conditions was determined by process optimisation and an overallheat transfer coefficients were also generated. Adequacy and reliability of the ice crystal mass prediction model produced was proven by error analyses revealing relatively small errors.-------------------------------------------------------------------
FREE Recommended magazines to get you updated with current engineering news
Have you downloaded my free "Choosing Alternative Fuel" Ebook? If not, then please download it here. It's Free and on top of getting the free ebook, you'll get eCourse on Alternative Fuel. It's a good and easy way to add more valuable information to yourself.How about some "Creative Chemistry"?....Anyone?...
Saturday, February 5, 2011
So how about short "artsy" post to stimulate the mind? Maybe a Haiku and a cool slide show? What do you think?
Well, if I could actually hear your responses, I would hope that the answer would be, "Yes! Go for it!" So without further ado:
Here is a Haiku about why and how atoms form covalent bonds by sharing electrons:
Because the electron configurations of noble gasses (8 valence electrons and completely full outer shells) are the most stable of all configurations, when forming compounds, atoms strive to gain an octet. Thus, they will share the number of electrons needed for all atoms to have eight electrons in their highest energy level shells.
The image to the left shows how two Group 17 (7A) elements (two atoms with 7 valence electrons) can combine to create one single bond and a diatomic molecule.
Works Cited:
Background Image for Haiku: http://205.243.100.155/frames/lichtenbergs.html
Animated .gif: http://teachers.pasd.k12.pa.us/hs/plavcand/Ionic%20and%20Covalent%20Bonds.htm
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Now, here is a short Animoto (an juiced up slide show) about five or six of the simplest molecular geometries and some household items that resemble these shapes. Enjoy!!
Works Cited:
See last slide of movie.
in Russian please see at:
Wednesday, January 12, 2011
Филипенко Г.Г.
К вопросу о металлической связи в плотнейших упаковках химических элементов
Оригинал: http://lib.izdatelstwo.com/Papers/1.174.pdf
What really is in your fish tank? - "Fishy" Ionic Compounds
Thursday, December 16, 2010
What spot in your house has more chemicals in one place than any other spot? Possibly the laundry room or cabinets under your sinks where you keep cleaning supplies. But if you have a fish tank, it might even be the place where you keep your aquarium supplies!!! Between pH balancers, mineral supplements, and chemically processed fish foods, there are bound to be many ionic compounds throughout.
So let's try to identify and name a few that I have found:
(This is a Prezi that names 20 ionic compounds that I identified on various aquarium related products.)