Unanswered | Answered

Chemical Engineering

Parent Category: Engineering
Chemical Engineering is the branch of engineering that deals with the technology of large-scale chemical production and the manufacture of products through chemical processes. Today, the field of chemical engineering is a diverse one, covering areas from biotechnology and nanotechnology to mineral processing.
Melamine is an organic base and a trimmer of cyanamide,  with a1 3 5 triazine skeleton. Like cyanamide, it contains 67%  nitrogenby mass and, if mixed with resins, hasfire retardant  properties due to its release of nitrogen gas when burned or  charred, and has several other industrial uses. 
there are many empirical constellations in turbulent flow depending  upon the conditions like whether flow is internal or external, flow  over a flat plate of pipe etc. so its better to refer a book on  fluid mechanics.
I do, if the question still stands. Only 2-5 kg of the stuff  though.
  Zillman's Excitation Transfer Effect   http://doctordigger.blogspot.com/2005/07/zillmans-excitation-transfer-effect.html
Because it is made up of more then one atoms that connected by convalent bond.
forms a sediment when it sinks to the bottom of a liquid.
  Answer   Titanium is a great alternative for structural material in terms of weight and strength. Titanium is lighter than Steel and much stronger than Aluminum. It has a low heat transfer rate, which makes it useful for high-heat applications.   The one major draw-back with titanium is...
A thermoplastic elastomer.
All types of dust that are not fully oxidized will burn and potentially explode. This includes metal dust such as aluminum, or organic materials such as grain or sugar dust. If a [solid] substance can burn, it can be explode as a dust if the right conditions are present.
Alkali and Alkali Earth Metals
Everyone should learn about the great Persian Medicine Founder named Avicenna
No absolute figure can be given, but it should depend on n-butanol  price plus converting fee plus extra cost for small quantities,  like Butanol Price plus 2 $ per kg.
that is is good because it can solve many murders and serve justice to those  bad because it may be used to discriminate against people with inferior genetics.
You need symbols on PFDs and PIDs because an exact drawing is more complex than necessary on those documents. Too much space would be occupied by the detailed sketch of something as simple as a valve, when all that those two documents need to show is what kind of valve, how large it is, and where in...
The significance of transfatty acids in oils is that we cannot metabolize them. Their counterpart is "cis fats", which are curled, but trans fats are straight. Since they aren't metabolized, they're stored in low-density lipids (LDL) -- the "bad" kind of triglycerides on the doctor's lab reports --...
The boilup ratio will help determine the bottom operating line of your column. Once you have both your bottom and top operating lines you can step off the number of stages (given the desired compositions at the top and bottom of your column).
  It can be used for sanitizing water
used for science experiments    ANS 2 - Sulphur's main use is in manufacturing  Sulphuric acid which is used in many aspects of industry. It is  also an essential component of fertiliser and is also used in  rubber, concrete and other manufactured products.
  Please have a look at the site below, it gives a very good explanation of the different uses of MEG and TEG. Some addition:   Because the possible water content goes up in the order MEG<DEG<TEG, I'd expected TEG to have a better affinity for water, but it doesn't. The reason why TEG...
1. It is used for flow measerment with minimum head loss.2. It is used in industries for flow measerment of chemicals.3. it is also used in the airoplane for measurment of speed of plane.
A distillaton column works byh contacting vapor and liquid phases. Without reflux traveling down the column the trays will not have sufficient vapor-liquid contact to induce a mass transfer between the phases, and separation will be poor to non-existent.
The nominal pipe size is closest to the inside diameter; however, for exact calculations both should be looked up in a table based on the scheduled pipe size.
its an abbrevitaion for, "no one is cooler riding ferresswheels ese!"
Cornstarch forms a thick paste when mixed with a liquid like water due to a property called cohesion (physical binding between molecules of two different substances). If pressurized and molded, the final product would probably break after the water evaporated but if you were to use something more...
Assuming you have binary components the McCabe Thiele Method should be used. Otherwise a process simulator such as Aspen, Pro/II, and/or KGTower should be used.
In an impulse turbine, the water (or steam) hits the blades and continues almost straight through as in a jet engine. In a reaction turbine, the water hits a semicircular cup and is completely reversed in path, normally dropping down the center with little or no momentum left. These are rarely used...
Gregor Mendel studied heredity and is called the Father of  Genetics. He conducted his experiments in the gardens of an  Augustinian monastery in Brno, Austria.
You could use a material safety data cheet or MSDS or encyclopedia (wikipedia)
The Graetz number is {(Diameter/Length)*Reynolds#*Prandtl#}^(1/3) It is used to characterize the thermal development of pipe flow: if the Graetz number is less than 1000, the thermal profile is fully developed.
  one is a mass flowrate and the other is a volumetric flowrate, you need to know a density of some sort to convert.
Electrode are some times broken due to: - 1) Electrodes making contact with a none metallic object as they are being hard pressed and ultimately broken. Electronic instruments are available to find this condition and take corrective measures to avert breakage of electrodes. 2) Scrap falling against...
gaskets exist to eliminate the need for adhesive, you do not need  to glue them
== Answer ==   Starting really from the roots...   Math, algebra, physics (basic knowledge), some knowledge in biology/biochemistry and of course physical, organic, inorganic chemistry, quantum mechanics (probably).   But don't be afraid... it's all part of the basic studies at University. ...
I'm not aware of a material named "Delron", but there is a material called "Delrin" which is a brand name for an acetal polyoxymethylene resin owned by DuPont. It is a hard resin approved for food handling use by the FDA. It is an economical material with properties of good strength, light weight,...
The hydraulic diameter for any cross section is:Dh= 4 * A / WpWhereDh = hydraulic diameterA = cross sectional areaWp = wetted perimeter
Micro filtration is used to separate suspended solids from  dissolved substances in a process stream. It is also used to  concentrate colloidal suspensions.
The reaction in which the second reactant is added to the intermediate medium to form the product.
i work with it by compressing them into metal objects
distillation is the process of repeated evaporation and condensation of the mixture of two or more miscible solutions in order to separate them by evaluating the boiling point
  Ether is an extremely effective solvent for many chemical reactions but is extremely dangerous. First and foremost, ether is extremely flammable. In enclosed environments, ether can also exhibit certain explosive properties (explosions in meth labs are often the result of the use of ether...
p.t.f.e. means polytetrafluoroethylene. The most famous brand name  for PTFE is Teflon.
The temperature at which condensation can occur is known as the "Dew Point". It is often used as an indication of the saturation of a vapor. If the dew point is close to the current temperature, the vapor is near saturation. If the dew point is well below the current temperature, the vapor is far...
The heat transfer coefficient of superheated steam is poor. Saturated steam has a better heat transfer coefficient, and also most of the heat transferred from steam occurs because of the condensation phase change.
you can t split atoms in half because they are so small.
  Find the nearest library, buy a cot, and camp out.
It is hard to say without a more accurate phase diagram, but it looks like at that temperature, your point lies on the boundaries of the phase transitions. Therefore you will get approximately 40% liquid Bismuth (Bi) and 60% solid Antimony (Sb) using the lever rule.
  Unlike the 300 series stainless 400 series stainless can be hardened by heat giving moderate corrosion resistance with more durability than 300 series stainless. It is commonly used in pump shafts for equipment requiring a higher torque spec than 316 SS can provide
A unit operation involves a physical change examples drying, size reduction, distillation, filtration etc. where as unit process involves a chemical change or sometime it refered as chemical changes along with physical change example production of paracetamol from benzene.
Packed and spinning band fractional distillation allow for a greater surface area which improves separation.
  An impermeable material.
  Throughput andflowrate both express the quantity or a substance per unit time passed through a specific volume. There are two notable differences though. They are that flowrate is usually only used when referring to fluids and throughput is more suitable when considering the feedstock charged...
  Cant be done liters have 3 dimensions square meters have 2
V= Q/A (velocity = volumetric flow rate / area) conversion: 1000L = 1m3; therefore 1900L/min= 1.9m3/min V = (1.9m3/min * 1min/60s) / Pi*(.02m)2/4 = 100.798 m/s Simplified Bernoulli Equation: ∆P/rho + 0.5*(initial velocity2-final velocity2) = 0 (rho=density) (equation assumes no fluid height...
Thermal diffusivity is the density divided by the specific heat of  a substance. The TD of polypropylene is around 0.096 meters squared  per second.
  Assume that you have a 25wt% solution of EG. That means you have 25 kg for every 100 kg of solution. Assuming that the EG is dissolved in water means that the solution would contain 25 kg of EG and 75 kg of water. To find the volume % you need to convert each component to a volume by using...
It depends on the element that you are using, and what state the  electron is in. In general this is a dimensionless constant that is  derived out of the quantum j, i, and f numbers that governs Zeeman  Splitting
The category that acrylic falls into is polymethalmethacrylates (plastics derived from petroleum by-products).
I don't think we can have some common identifiers that makes it possible to easily recognise an alloy. We do however have methods of finding out if a metal is pure or an alloy.This can be done with various types of acidandit can also be done by measuring a materials electric properties/resistanse.If...
243 is used on oily surfaces that can't be cleaned.
Capacity, Net Positive Suction Head (NPSH), and Efficiency
The ultimate source of natural sugar based polymers are plants.. Plants make sugar (glucose) by photosynthesis. The glucose is then used to make polymers such as starch (amylose and amylopectin) and cellulose.. See:. http://en.wikipedia.org/wiki/Polysaccharide
    A sieve analysis test is a procedure to separate fine material from course material by means of a series of woven or perforated surfaces. The proportion of different size particles are recorded. This record is the conclusion of the analysis. Art Gatenby agatenby@cscscientific.com
  PC melting temp is approx 265 deg C, however its glass trans temp is 145 deg C - begins to 'soften'. Working limits are therefore below this value
Pearlite is iron alloy made of ferrite(88%) and cementite(12%)  formed under speciallized conditions.
Copper and Aluminium are elements but Bronze is a compound of Copper and Tin
They're metal and metal rusts because the iron in metal oxidizes.
The assumption to design heat exchanger is that it must be a shell  and tube device. This device must allow the transfer of heat from  one fluid to another without mixing the two fluids.
yesType your answer here...
the best fuel for combustion is not a good question due to the fact that you could use it against certain people
Bourdon tube can be used to measure even vacuum pressures, that are lower than atmospheric pressure...
Computers play a vital role in almost every aspect of Modern Chemical Engineering 1. Chemical engineers use super-computers to simulate complex chemical processes and plant operations. 2. Chemical engineers use Computational Fluid Dynamics to simulate flow systems and advanced heat transfer...
Google "pool boiling"
blending and mixing have some common grounds. Both involves mixing of various oils. Mixing is the act where one oil is being interacted with a diffrent oil, which makes a new product.Blending is however a bit more complicated. The blend product consists of various oils, in order to give the "blend"...
Fire can only excist when the three components of the fire triangle are met; these are an ignition temperature, a medium to burn on and a feeding source (mostly oxygen).If one of those three are gone, the fire should stop.
Muriatic Acid is good at dissolving cement, as well as RoMix Back Set Molecular Cement Dissolver
1. The purpose of correlation chart are to measure or relate two variables and allow us to make a prediction about one variable based on what we know about another variable. For example, a correlation between the 2 known sample.
second law of thermodynamics dictates that a mixture of two diffrent temperature makes an equilibrium. And heres the problem, in a normal environment, the cold water pool and its environment are in equilibrium. That is to say when cold water is supplied to the pool. Why is that? The temperature of...
A simple distillation is when a liquid is boiled and the vapors are  condensed back into liquids in a condenser and captured in a  container separate from the one being heated. This method is useful  for separating liquids based on their boiling points.
  An automotive engineer will enter into the business at something on the order of $50,000 to $60,000 per year. The veterans with decades of experience will earn in the neighborhood of $100,000 per year.