Compressed natural gas(CNG) is a fuel that needs no introduction. it is a cheap fuel to make and use, which is why it is so widespread in public transport. Not to mention that the second hand car market is greatly supported by CNG kits. vehicles like the Honda Civic, Accord and Toyota Corolla are favorites to be bought second hand and then have green fuel kits used to make them easy on the pocket. With diesel deregulation soon to kick in, the price of the oil will head north soon, so CNG seems
In the last 10 years, evaporative and desiccant cooling technology for air conditioning has increased as an alternative for air conditioning systems has increased as an alternative to the conventional vapour compression systems. A typical system combines a dehumidification system that uses a rotary desiccant wheel, with direct or indirect evaporative systems, allowing a filtered and cooled air supplying temperature, humidity and speed conditions that propitiate environmental thermal comfort, eve
Today i will like tell you all about my 4th year project which was on the topic of experimental analysis of an air washer.
In the recent sanario the peoples are slowly getting conscious about the beast(pollution) intended to destroy our beautiful sphere(earth). This pollution had drastically spread in our world drastically in few years. It is sad to say but we are only responsible for it. The careless burning of fossil fuels, heavy growth in industries and invention
Hydraulic cylinders haven’t really changed a lot over the years. The manufacturing processes are much more streamlined and the tolerances are much tighter, but for the most part cylinders are still the hard working push/pull tools they have always been. These things have literally shaped the world around us. Anything that gets lifted, pushed, hauled, dumped, dug, crushed, drilled or graded has gotten that way by some truck, crane, dozer or tractor using a hydraulic cylinder. But how do hydraulic
I get great satisfaction when working with my hands. When I do so I always ask why the item I am working on is as it is. One source of frustration I believe many have experienced it the lack of tool access. Sometimes n-1 fasteners are a breeze to access and the nth takes more time to remove than all the other combined.
I don’t recall from my machine design class ever addressing this real world situation. I learned how to size bolts, bearings, and cross-sections but I don’t recall any mentio
1. What are the differences between true stress, engineering stress, proof stress.
2. What do you men by factor of safety and what is its significance
3. What do you mean by Young’s modulus, modulus of rigidity and bulk modulus.
4. What do you mean by resilience.
5. What is pure torsion and what do you mean by flexural igidity.
6. What is the difference between endurance limit stree and endurance strength.
7. What do you understand by efficiency of riveted joint.
8. What is caulkin
I recall many years ago first hearing the term Over Engineered. It rang a sour note but I had not given it much thought. I still hear this said today about older equipment. For instance the DC Generators at Pratt Institute in Brooklyn NY have been in operation for over 100 years. http://inspectapedia.com/heat/Steam_Systems_Pratt_Milster.php I had the opportunity a few years ago to visit my alma mater. To my surprise and delight the Chief Engineer who provided the tour of the facility to my class
You know that diesel engine is the most appropriate choice of the engineers when it comes to drive heavy automobile like trucks, aircraft, ships etc. But what makes it so torque, is it the engine design, working cycle or something else. Please share your deep analysis to answer this questions
Seminars have always been an important aspect of education. It's an opportunity to either gain knowledge on an unknown topic or develop ideas regarding something you already know.It's a place where you meet highly skilled persons and get to know their recent researches.You should attend at least a couple of seminars annually to keep yourself updated about the advancements taking place in your field. I've seen many people who keep avoiding seminars, although interested, just because they have nev
What is a BUE?
BUEs are built-up edges formed due to the accumulation of work-piece material against the rake face of the tool.
How are BUE formed?
During machining, the upper layer of the work-piece metal experiences a large shear force as it comes in contact with the tool-tip and an amount of the metal gets welded to the tool-tip. This is due to work hardening of the metal layer. The metal adhered to the tool becomes so hard that it is difficult to remove.
When two links (or elements) in a machine are in contact with each other, they form a pair. When the relative motion between these two links is completely or partially constrained, then the links are said to form a kinematic pair.In simple words, a kinematic pair or simply a pair is a joint of two links having relative motion between them.
Kinematic pairs can be classified on the basis of:
1) Nature of contact between the pairing elements
(a) Lower pair – surface
Turbines are machines which convert fluid energy to mechanical energy. When the fluid used is water, they are called hydraulic turbines.
Hydraulic turbines may be classified on the basis of four characteristics :
On the basis of the type of energy at the turbine inlet
total head of the incoming fluid is converted in to a large velocity head at the exit of the supply nozzle ( entire available energy of the w
Someone could tell me what the name of this mechanism or how can I find a way to design it.
It is a shaft that moves in a straight line vertically and along the way makes a 180 ° worst shaft never leaves his line of action .
these links you can see the operation of the mechanism
Imagenes del giro.docx
A Journal of Applied Mechanics and Mathematics by DrD, # 31
Machinery Dynamics Research, 2016
ODE Solution --- Fail!!
Digital computation has become a major tool for engineers, and it is a great benefit. It can also lead to many pitfalls for the unwary. This note is about the latter, a potential pitfall that many engineers risk on a daily basis, most of them with little awareness of the danger.
Early in the developme