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Chemical 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.
1,464 Questions
Application of heat transfer in your daily life?
i want this answer as early as possible
sum 1 please help me
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What are some samples of corporate mission statements?
Since this question was placed in the "cars and vehicles" category, I would assume you were looking for automotive-related mission statements. If that's the case, you can go to just about any major automotive vehicle manufacturer's website like GM, Toyota, Honda, Mercedes, etc. and you'll find their mission statement somewhere on the site.
WHAT IS Conceptual engineering in design activity?
The conceptual engineering aims to identify the machinery, equipment, supplies and facilities necessary to operate a project.
By definition:
A conceptual engineering study should logically consider the issues, concerns and goals that may be raised by an engineering request, evaluate possible technical solutions and clearly report the findings and recommendations. It is intended to provide a comparative basis for decision making regarding further actions, without expenditure of exhaustive engineering efforts. Further preliminary engineering (e.g., equipment layouts, geological studies, testing and inspections) may then be suggested for the recommended conceptual solution prior to full project funding commitment and detailed engineering design.
What is the element that is used in rockets as an igniter?
There are a fair few ingredients used in fireworks, the ones that are used in their elemental form are:
Sulphur, Silicon, Carbon, Red Phosphorus, Magnesium, Aluminium, Titanium, Boron, Zirconium, Copper, Iron.
Who was the inventor of the water purification device?
Reverse osmosis is one processing device in which the TDS of water is removed.There are other devices which use ultra violet rays to kill or numb the bacteria also.Devices should be used only after a clear check of the dissolved substances in the water.Chances are that needed minerals may be removed in these process.
The boiling point of alcohol can vary depending on the type of alcohol. For example, the boiling point of ethanol (found in alcoholic beverages) is around 78.37°C (173.07°F). Isopropyl alcohol, often used as rubbing alcohol, has a boiling point of around 82.6°C (180.7°F).
You need to look at the misconception that time is a dimension, and that traveling its length is even possible. Though often described as such, it is not a dimension. It is a descriptive attribute, like a pound, or velocity, or a color. Time is simply a description of comparative change, for without comparative change between two objects, there is no such thing as time: whether it is comparing the rate of molecule decay, or the comparative change of chemical reactions. In an absolute pure vacuum - time does not exist. And since time is not a constant - it cannot be a dimension.
To qualify as a dimension, the dimension has to exist in the same space and time as all of the other dimensions. Meaning it must always be present, and therefore, a constant. The dimensions are length, width, breadth, and energy. Why energy? because it is always present in all physical objects, occupying the same space and time as all the other dimensions. Various frequencies of energy may in themselves be additional dimensions.
To address the issue of time travel: to reverse time-you would have to know the pre-existing condition of every molecular and chemical reaction in the universe, and somehow reverse them all, simultaneously, to their previous positions and states.
Meaning: you would also have to be restored. So, you would never know about the future, and never realize you have traveled back in time. Leaving the times and events to replay themselves back out exactly as they did before... So, what would be the point?
If you travel back in time to kill your own grandfather... 1) you would never know it... 2) History has already shown us what happened - since you're being in the past has always been the way it originally happened - making you part of the original, and only, timeline - we know you fail in your attempt. 3) If you popped backwards a few decades - the Earth would not be here for you to land upon. It would be 100's of light years back in its orbit around the Milkyway Galaxy. So, until you can travel 100's of light years in the blink of an eye - there would be no point in time travel...
A few points SciFi overlooks when writing movies and novels...
Now, if you wished to go on a one way trip to the future - you simply need to find a way to enter a form of biological suspended animation for the appropriate time period. When you awaken, you will be in the future, and it will have appeared, from you relative position, that it occurred instantly...
Why is water as a good conductor of electricity cannot be used as a cable?
Normally cables are made from either Aluminium or Copper as these are the two best cunductors apart from Silvier which is too expensive. These materials are ideal for use as cables as they can be easily shaped. Water is a liquid and therefore could not be used to make a wire as a solid is needed for this.
add and as soon as you've gotten more than a couple of volts, the water will be electrolysed into hydrogen and Oxygen.
What is the density of diesel 80 degrees C?
For a diesel with a density of 843 kg/m3 @ 15.6°C, the density at 80°C would be 803 kg/m3.
For reference, the EURO-V specification for diesel requires a specific gravity of 0.820 to 0.845 @ 15.6°C. The diesel above is on the heavier side of the specification. Since the composition of diesel may depend on local specifications, the composition and density may vary for region to region and even refinery to refinery.
Why demineralized water is corrosive?
To remove the minerals from raw water, the raw water has to undergo several process during which energy has to be input to it. As a general rule, any substance with higher than normal energy level tries to come to a stabilized state by releasing the excess energy (compare with the electrons imparted with higher energy level, which try to return to lowest possible state for stabilization, or something having high potential energy due to elevation which tries to return to the minimum possible elevation to attain a stable state or to make it simple, remember: HE THAT IS DOWN, NEEDS FEAR NO FALL!). That is the reason which makes demineralized water highly unstable and reactive. It tries to react with metals to lose energy and stabilize.
the air will be in liquid state when its pressure is increased and its temparature is decreased.
eg: CNG is highly compressible gas.
Does any absorption take place in the stomach?
No. The stomach does not absorb anything.
The above answer is wrong. The stomach is responsible for absorption of alcohol in particular, as well as a fair quantity of the drug aspirin. The majority of aspirin is absorbed in the duodenum of the small intestines, but some is taken in by the stomach.
What is the difference between saturated steam and Superheated steam?
Saturated steam occurs when steam and water are in equilibrium. If you have a closed container of water and heat it, above 100 celsius the steam pressure will start to rise, and as the temperature continues to rise, the pressure will go on rising. What is happening is that steam is being evolved to match the temperature (steam tables will give this relation) and the steam conditions are said to be saturated because if the pressure is raised by external means, some of the steam will start to condense back to water.
If the steam pressure is held at a lower level than that achieved at saturation, by taking steam off to feed a turbine or other steam usage, there is effectively an excess temperature for that pressure, and the steam is said to be superheated. It in fact then becomes dry, and behaves as a gas. The amount of superheat can be quantified as so many degrees of superheat (celsius or fahrenheit).
Turbine designers want steam to be superheated before reaching the turbine, to avoid condensation causing blade erosion, and steam producing boilers in power plants are designed to produce superheated steam. In plants where no turbines are used, only satured steam is normally generated.
In heating applications, saturated steam is preferable, because it has a better energy exchange capacity. Superheated steam must cool down, and become saturated steam, before condensing in a heat exchanger. Also, superheated steam is a thermal insulator, like air.
That is why it is necessary to direct superheated steam through a desuperheater before using the steam in heating applications.
How do you collect crude oil out the ground?
It has to be pumped. A drill is used to drill down to the oil and then a pump is setup to get the oil out.
A packed fractional distillation column will be more effective at separating two closely boiling liquids than an empty one because you have more surfaces for condensation and revaporization of the liquid. A packed fractional distillation column has many more surfaces two allow the mixture of vapors to condense and distill again over and over to effectively separate.
How do you convert Reid Vapor Pressure to True Vapor Pressure and vice versa?
http://www.epa.gov/ttn/chief/ap42/ch07/final/c07s01.pdf page 56
How viscosity of mud effect the drilling?
importance of mud in our life is that mud is very useful for us it can be used in many ways .when mud falls on the face of a child the child looks more beatuful,also when it is on flowers.mud is real good thing .
What is plastic buckets made from?
Many buckets are made out of high-density polyethylene. HDPE is a durable, non-reactive thermoplastic that resists have an effect on and inhospitable climates all through transit or storage. In the blow molding process, uncooked HDPE resin, which in the establishing of the molding technique is referred to as stock, is loaded into a hopper.
What is difference between block flow diagram and process flow diagram?
BFDs provide a complete overview of the whole process in block diagram form. They summarise the major unit operation between process block units. PFDs characterize all the process flows to and from all the equipment required to perform the process within the boundaries set by the BFD
What is stroke length of a pump?
The stroke length of a pump is the distance it travels up before it travels down. The distance traveling up takes in air or water depending on the type of pump. The down pressure expels the air or water.
In a packed or tray column where you have vapor flowing up and liquid flowing down, there is an upper limit to how fast the liquid can drain downwards. The point at which liquid cannot flow down as fast as it is coming into the column is the "flooding point". The actual flooding point is partly dependent on how fast the liquid can flow down with no vapor flowing upwards and the rate at which vapor is trying to flow upwards. Cross sections of the column occupied by vapor are not available for liquid flow - effectively reducing the cross-section for downward flow of the liquid. You also get entrainment of liquid in the upward flowing vapor and drag on the liquid as it fights the direction of the vapor flow - the vapor wants to go up while the liquid wants to go down. This additional drag also slows down the flow of liquid trying to drain downward in the column. There is an analogous condition for two-phase liquid/liquid extraction columns.
What is the difference between clarifier and classifier?
Clarifier removes solids from Liquid and Clarifier removes solids from Gas
