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Showing content with the highest reputation since 10/20/2018 in all areas

  1. 6 points
    First of all, I would like to congratulate to all engineering students who made this choice for this excellent but tough career. You will meet lot of challenges on your way up. Be prepared to learn lessons everyday without any regret. Life itself is a teacher who teaches everyone everyday. For readymade experience learn from experienced people without any EGO. Few readymade points are: Being Engineer!! I have met many people who underestimate an engineer. They should know that Engineer cannot be judged by his grades or the views his HOD have for him. There are many qualities that engineer posses but might not found in his CV. Below are few of those qualities that give the engineer an extra edge. Career Scope- An engineer can become the software developer, bank manager, IAS officer, Business manager or even a BPO assistant. Values- There won't be anything called "Hot chick" in engineering college hence they understand their value and start respecting every girl. Working under pressure- Even though he (might have) never experienced "one night stand" ever but he knows how to survive examinations via "one night studies" Determination- Engineers love to sleep, but they never go to bed early. Nights are not made to be spent sleeping, the lecture is. Meticulous- Engineers are not lazy they are just highly motivated to procrastinate. Kindness- Engineers love everybody, apart from their faculty, project head, Deans, scientists, the new boyfriend of their ex-girlfriends, authors of their curriculum books, power cutoffs and slow internet. Team Work- Team Projects and group seminars might have failed to teach them this quality but mass-bunks and proxy attendance will surely teach the value of teamwork. Maturity- Engineers get to know that world is full of dishonest people when they join the college just because they have read the words like lavishing infrastructure, supporting faculty, 100% placements in their college brochures. Also when they get to know that girl's photo they saw on brochure doesn't exist. Network and relations- None of the relatives or any friend's mom ask them before but once they graduate everyone calls them at their home (so that they can fix their table fans, mixers or radio transistors). They recognize people with the mobile phone they carry and their laptop configurations rather than their names or faces. Fast learning- Even highly qualified faculty might have failed in teaching them a topic, but he will remember every word of it when his friend dictates it before entering the examination hall. Learn by Fun- Playing tic tac toe during class, late night counter strike tournaments, watching T20 with friends and completing Angry birds stages during lab sessions gave engineers more competence than any other sport. Sacrifice- Two engineers saw a hot chick in the mall, first reaction: ABE dekh be, Gazab !! second reaction: Jaane de yaar aukat ke bahar hai. Engineers also sacrifice their clean shaved look, to look more hard-working during exams for self-motivation. Resource management- Engineers know that a 3G connection and 4Gb pen drive is the first requirement before preparing for practical exams. Engineers know the value of every single bar in Wifi connectivity symbol and phone batteries. Staying Healthy- Engineers never compromise with their health, they stay fit and immune due to a regular dosage of Maggi and backed-samosa. Having food at Punjabi Dhaba and tea at extra-(un)hygienic Gumti is the part of their diet. Engineering is not just a degree... it teaches you the way of living life like a warrior. Engineering gives a perception and attitude. It teaches you the survival.
  2. 5 points
    Here are some tips for Mechanical Engineers (No site preferences): -Focus on the fundamentals of engineering and practice it (Relate those concepts to real-world examples and try solving it; the problem doesn't have to be Nobel). - It's easier to get lured by fascinating UI in commercial programs and software, and think that you are now capable of solving complex problems. But mind you, running a black box without a bit of idea on what's happening can lead to a disaster. So, dig into fundamentals, read and understand the manuals, understand your problem, figure out the ways to deal with such problems from past literature {"If I have seen further it is by standing on ye shoulders of Giants"-Issac Newton (Copied)}. This is true, for example, most of the time you might be trying it wrong and other's might have already found it and warned. So take the literature review seriously and stand on the shoulders of past researchers and solvers. Think of uncertainties in modeling and try to quantify them. Then use your engineering judgment for failsafe. - Textbooks are always the best friend. Try to read (Basic to advanced) in your field of interest and as many as you can. - Whichever language you prefer will work to solve problems in Mechanical engineering (It does not have to be the trending, C (structured) and C++(object-oriented) will work), the reason why I am saying this is don't waste your time to learn all the languages out there (if you know, it's an asset for sure) if you are a Mechanical Engineer, you are a problem solver for Machines, you are thought to be dealing with basic conservation laws, classical mechanics for most of the part, and quantum mechanics will be an asset for the future, so the computer language should be the second options (Learn only if you have to face such a situation like, in the industry or if the machine you are dealing with needs it; it should not be a big deal). - Try to have fun sometimes...it's easier for a mechanical engineer to get lost in the details of its own vast universe. Dealing with site problems could be different... Cheers!
  3. 3 points
    How can an engineering student become a better engineer ? What are your suggestions to young engineering students.....
  4. 3 points


    A shell and tube heat exchanger is a class of heat exchanger designs. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes: plain, longitudinally finned, etc. posted by Prashant Swami
  5. 3 points
    Have u ever thought ,if a true mechanical engineer will write a love letter 2 his girlfriend....it would be somewhat like this....  My perpetual darling From the day u entered in the control volume of my mind my heart has become a closed system and its entropy is increasing according to III'rd law of loveodynamics....... The events and activities are so complex that i cannot find the optimum path after n nos. of iterations...... My heart is unable to sustain the cyclic load of ur frequent smiles and is near to endurance limit failure..... I am quenched in ur thoughts and no heat treatment can save my heart from decrystalisation now........ please do not test the bearing capacity of my heart valves and lower your yield strength......... please do not increase the compression ratio of my heart so much bcoz it is not designed to bear so much thermal stress..... please lower the octane no of ur temper as my little heart is not accustomed to so much undesired Knocking....... I am sure that u also would be experiencing some residual stress, and will someday show a proportionate straining of ur heart according to hooks law .........and as a Mechi i firmly believe in this theory.....so i will wait ....... till my little heart crosses its ultimate tensile stress and fractures Your LoveStrain-Hardened lover
  6. 2 points
    You How to become a better engineer, get stuck in, ask questions, ask a lot of questions. You may not like some of the answers you get but listen to everyone. The more you do the job the better you will get, you are going to have to start at the bottom and you will get the sh*ty end of the stick more often than not but it is learning. Dont give up, you will get blamed for things that have nothing to do with you, but stick at it and you will get there.
  7. 2 points
    viscosity decreases as temperature of a fluid increases. As temperature rises, the kinetic energy of the molecules increases. The molecules become more energetic to move freely and are loosely bonded to each other. The reverse is true for when temperature drops.
  8. 2 points
    I will like to hear about you all the use of Excel and what you want to use for after completing this course.. Look forward to hear your experiences .. This will certainly help me in choosing the appropriate examples
  9. 2 points
    Hi Everyone, Not my strongest topic but I do know the answer to this one. A Newtonian fluid's viscosity remains constant, no matter the amount of shear applied for a constant temperature. These fluids have a linear relationship between viscosity and shear stress. Non-Newtonian fluids are the opposite of Newtonian fluids. When shear is applied to non-Newtonian fluids, the viscosity of the fluid changes. This can be either Dilatant - viscosity is directly proportional, Psuedoplastic - viscosity is Inversely proportional, Rheopectic - viscosity is directly proportional over time or thixotropic - viscosity is inversely proportional over time. Why do you need to know the difference? It's important to fully understand the properties of the fluids you're transferring, mixing, or pumping, because viscosity plays a major role in sizing and selecting equipment. Understanding how it reacts to shear will help you properly size and select all the equipment it comes in contact with. I am a very busy person, so apologies in advance if it takes a few days to get back to anyone. Great topic OP. Very important knowledge to have.
  10. 1 point
    We have started with following I Engineering study clubs in phase 1 The complete list https://engineeringtalks.com/subjects/ Please add comments for the following 1 For adding another subject 2 If you will like to contribute for a specific subject 3 Feedback and suggestions
  11. 1 point
    For Brittle Materials, Max Principal stress theory is suitable as it considers Uni-axial tension or compression and fact that brittle material fails at tension For Ductile Materials, there are two theories applicable depending on loading condition/application Max. Shear stress theory is suitable for all conditions of loading as it considers yielding as design criteria and the fact that ductile material is weak or yield at shear first and fails at tension. Shear strain energy/Von-mises theory suits when there is no uni-axial loading ie, when we have multiaxial loading on the system, and it considers equivalent max normal/shear stress and fall little below satisfactorial design.
  12. 1 point
  13. 1 point


    Tutorial 1 Sales Projection.xlsx
  14. 1 point
    I use excel in monitoring and forecasting when resources will finish and how much will be needed to sustain machines availability every month. i also use excel for inventory purposes and maintenance planning
  15. 1 point
    Good morning. I mainly use for data interpretation by plotting graphs. But would like to see its applications in depth for Machine Design and other related areas of Mechanical Engineering.
  16. 1 point
    Hi guys (& gals), Does anyone else find this website confusing to navigate? Trying to find what you want is definitely not straightforward. For instance, there's a poll on what people use Excel for, and after 10 minutes trying to find the poll to vote, I've finally given up. I can see the question posted regarding the poll, but just can't see anywhere to cast my vote. I posted what I thought was an interesting problem for the guys here to look at and comment, but haven't had a single comment. I'll give this website another month and if things don't improve, I'll be leaving (sorry admin). Pete
  17. 1 point
    I am a Engineering Professor (Mechanical and Civil) and use Excel to improve my classes - I'm interested in creating calculus sheet for Resistence of Materials and Hydraulics & Pneumatics cases.
  18. 1 point
    Expect to start within five days.... We are waiting for more participants.. to give it a pace....
  19. 1 point
    This video is phenomenal. A big CHEERS for Engineers. HURRAY !!!
  20. 1 point
    Hello Pete, the problem that you are facing is the one I have been into as well. And the solution to that is "Signing In" to your account here on this website and then enjoy the resources which are provided here in. Don't let your negative vibes stopping you from learning anything you aspire. ENJOY! Regards Manpreet Singh
  21. 1 point
    I am a retired mechanical engineer. I use excel to calculate returns from my investments and manage them.
  22. 1 point
    I am using Excel for data analysis and segregration
  23. 1 point
    I am a mechanical engineering student and I would like my general excel skills
  24. 1 point
    I am Dr S Madhu. Completed my BE in Mechanical Engineering, ME in Machine Design and PhD in Polymer Composite Materials. Currently I am working in ANURAG GROUP OF INSTITUTIONS, HYDERABAD in the Department of Mechanical Engineering as Professor. I use excel for data analysis and plotting the graphs. I am looking forward to gain in-depth knowledge in Excel so that I can apply the same for better data analysis. Yes. I can spare one hour every day. I am looking forward to exploit excel for faster calculations and visualization in the field of mechanical engineering problems.
  25. 1 point
    That is a GenSet, and it is at least as much mechanical as it is electrical. Almost 50 years ago, I worked for a company that put together such packages, IC engines with any sort of driven machine. Generators were the most common, but we also powered pumps, air compressors, fans, whatever. It was a great place to work, with lot of very real, very serious, engineering challenges! DrD
  26. 1 point
    Hello there! Since the 1990s, computer simulation has become the most important tool for developing and / or improving various equipment for more daring projects. Based on the Navier-Stokes formulation, turbulence flow models, finite volume method and others in the case of computational fluid dynamics (CFD) and finite element methodology in the case of structural analysis (FEA), both tools required an upward computational cost, considering Random Access Memory (RAM), Number of Processors and Parallel Processing, typical features of High Performance Computers (HPC). On the other hand, the validation of computational simulations in the comparison of experimental tests requires simple physical models. The industrial process requires complex physical models, where there is apparently no validation of CFD or FEA cases. This becomes a restriction. Given this situation, what can we do? Does anyone have a suggestion and / or comment to try a potential solution to this restriction? Feel free to comment.
  27. 1 point
    Manometer used to measure the static pressure and based on the hydrostatic pressure variation equation, p=ρgh
  28. 1 point
    In liquids, viscosity depends on the strength of cohesive forces between fluid molecules; hence an increase in temperature results in a decrease cohesive forces and a decrease in viscosity. For gases, viscosity depends on the momentum exchange between layers of gas moving at different velocities. An increase in temperature provides an increase in molecular activity and an increase in viscosity.
  29. 1 point
    TDC is Top Dead Center BDC is Bottom Dead Center For an engine with no cylinder center line offset, the cylinder center line passes through the crank axis of rotation. When the piston is farthest away from the crank axis, this is the TDC condition. When then piston is closest to the crank axis, this is the BDC condition. The term "dead center" refers to the fact that pressure acting on the piston in a dead center position produces no torque on the crank and hence no ability to move a load. The term derives from the era of steam power when single cylinder engines were very common. DrD
  30. 1 point
  31. 1 point
    What is the importance of permeability in sand moulds ? What is the difference between green strength and dry strength ? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  32. 1 point
    What are the necessary steps in sand moulding? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  33. 1 point
    What do you understand by the term 'interference as applied to gears'. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  34. 1 point
    Discuss the important non-metallic materials of construction used in engineering practice. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
  35. 1 point
    Today Monday 18th February 2019, I'm present from Mexico...
  36. 1 point
    Abdullahi 👨‍🔧from Nigeria is present
  37. 1 point
    I am a chemical engineer and i will prefer if their are qustions for my branch to refresh our information.
  38. 1 point


    Pressure Relief Safety Valves
  39. 1 point


    About Valves
  40. 1 point


    HEAT TRANSFER LAW APPLIED TO HEAT EXCHANGERS 2 Heat Transfer by Conduction 3 The Heat Conduction Equation 9 Heat Transfer by Convection 12 Forced Convection 12 Natural Convection 14 Heat Transfer by Radiation 15 Overall heat transfer coefficient 18 Problems 22 DESIGN STANDARDS FOR TUBULAR HEAT EXCHANGERS 23 Size numbering and naming 23 Sizing and dimension 27 Tube-side design 32 Shell-side design 33 Baffle type and spacing 33 General design consideration 35 THERMAL AND HYDRAULIC HEAT EXCHANGER DESIGN 37 Design of Single phase heat exchanger 37 Kern’s Method 45 Bell’s method 49 Pressure drop inside the shell and tube heat exchanger 57 Design of Condensers 65 Design of Reboiler and Vaporizers 72 Design of Air Coolers9 85 MECHANICAL DESIGN FOR HEAT EXCHANGERS10 88 Design Loadings 88 Tube-Sheet Design as Per TEMA Standards 90 Design of Cylindrical shell, end closures and forced head 91 References 95
  41. 1 point


    These Files Contains Books on Petroleum Refining, Fundamental of Fluid Mechanics, Chemical Technology, Process System analysis and Control etc. posted by KISHAN YADAV
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  48. 1 point
    I vote to mechanical engineering... ROYAL MECHANICAL ?
  49. 0 points
    I request all AutoCad Experts - please share your views how can we make a systematic approach... here in this club.. whoever joins can master at the leats the basic and then advanced AutoCad skills
  50. 0 points
    Explain the term hot spot and what features of casting design could lead to it. How will a hot shot manifest itself as a casting defect? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer

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