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Mechanical Engineering Knowledge
Welcome to Mechanical Engineering Community forum - The knowledge community connecting mechanical engineering professionals across the globe. The success of this community depends on your participation. Do not read just as a guest... Be an active member
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Mechanical Engineering Presentations
Fit_and_Dimensional_Tolerances
Fit_and_Dimensional_Tolerances_Mechanical_Engineering_Drawing Source Ashish K Darpe Department of Mechanical Engineering IIT Delhi Thanks to Mr. Ashish K Darpe Regards Saurabh Jain
introduction to cfd Computational fluid dynamics
its useful ppt about CFD •Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena by solving the mathematical equations which govern these processes using a numerical process.
Geometric Dimensioning and Tolerancing
Geometric Dimensioning and Tolerance ppt Five powerpoint presentations
Metal Forming
Powerpoint Notes on Metal forming Topic includes— Hot &Cold working Forging Extrusion Rolling Drawing
Automotive Technology, 5th Edition James D. Helderman ppts
A COMPLETE INSTRUCTOR AND STUDENT SUPPLEMENT PACKAGE - Continued These ppts are set of instructor and student supplements. . A FOCUS ON DIAGNOSIS AND PROBLEM SOLVING The primary focus of these ppts is to satisfy the need for problem diagnosis. Time and again, the author has heard that technicians need more training in diagnostic procedures and skill development. To meet this need and to help illustrate how real problems are solved, diagnostic stories are included throughout. Each n
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Mechanical Engineering Questions
Explain in an orderly manner how the force in the member of a truss be detected using the method of joint.
Explain in an orderly manner how the force in the member of a truss be detected using the method of joint. 1. You can answer this question 2. You can like the best answer 3. You can share the question.
What are the Advantages of using LPG in Car?
Is it good to use LPG in car ? what are the Advantages and Disadvantages of using LPG in Car? 1. You can answer this question 2. You can like the best answer 3. You can share the question...
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From class Notes
18 Mechanical Properties Which Every Mechanical Engineer Should Know
Selection of material is an important aspect for manufacturing industries . The quality of product is highly depends upon its material properties. These properties are used to distinguish materials from each other. For Example: A harder material is used to make tools.A ductile material is used to draw wires. So the knowledge of mechanical properties of material is desirable for any mechanical student or for any person belongs to mechanical industries. This post brings top 18 mechanical propertie
Types of Welding
Welding is a process of joining similar and dissimilar metals or other material by application of heat with or without application of pressure and addition of filler material. It is used as permanent fasteners. Welding is essential process of every manufacturing industries. In fact, the future of any new metal may depend on how far it would lend itself to fabrication by welding. The weldability has been defined as the capacity of being welded into inseparable joints having specified pro
Difference between Hot Working and Cold Working
They both are the metal forming processes. When plastic deformation of metal is carried out at temperature above the recrystallization temperature the process, the process is known as hot working. If this deformation is done below the recrystallization temperature the process is known as cold working. There are many other differences between these processes which are described as below. Difference between Hot Working and Cold Working: S.No.
CLASSIFICATION OF FLUIDS
Ideal fluid: A fluid, which is incompressible and having no viscosity, is known as an ideal fluid. Ideal fluid is only an imaginary fluid as all the fluids, which exist, have some viscosity. Real fluid: A fluid, which possesses viscosity, is known as real fluid. All the fluids, in actual practice, are real fluids. Example : Water, Air etc. Newtonian fluid: A real fluid, in which shear stress in directly proportional to the rate of shear strain or velocity gradient,
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A fan coil unit is the name of the device which uses a coil and a fan to heat or cool a room without connecting to duct work. These devices are systems or machines that eliminates hot air and replace it with cold and humid air by circulating cooling the air. A Fan coil unit is a device that includes fan blower and coil for heat exchange. The task of this machine is to release air into the desired space. Cooling of cold water inside the coil (supplied through the chiller) and passing air from this cooling coil cause cool air. do you know something more?
- Last week
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Hey there. I’m working on an electric skateboard project where I have a plank of wood with a bike wheal on the back and a chain to drive the whole thing. I can’t find the correct motor to power the whole thing and could really do with some help to do so. I need something with enough torque so it can move a lot of weight and it to be fast too. I can’t spend to much either. Thanks
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A multi-national company in the gulf area is seeking to hire: #Head_of_technical_support Job requirements: - Bachelor degree in chemical engineering - 8 years of experience in lubricant technical support : 3 years in lubricants laboratory services 5 years in lubricant technical services. - You must have experience in Industrial applications - Fluency in English (writing/reading). - Experience with ISO certifications and in organizing Training sessions is preferred. Kindly send CVs to: rec1@rp-jobs.com Write (Head of technical support) in the subject line
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#Job_description: To participate in planning and implementation of planned maintenance programs and supervise the maintenance work and participates in more complex electrical repairs and adjustments. Able to draw sketches and write descriptions for Power Generation & Transformation equipment. #Job_requirements: - BSc. Of Engineering (Electrical) - 6 to 10 Years in Electrical Maintenance (including 5 years of experience in gas power generators and transformers types) - Experience in any of the following fields: - Oil & Gas - Refinery - Fertilizers - Petrochemicals. - Interested candidates are kindly requested to drop their CVs on: rec1@rp-jobs.com Quoting job title in the subject line. -You can recommend your friends/colleagues in the same field.
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Mechanical_Rotating_Equipment_Specialist
Resource professionals posted a blog entry in #Utilities_trainer
#Job_qualifications: • BSc. Of Engineering (Mechanical) • 6 to 10 Years in Mechanical Rotating Equipment Maintenance in any of the following fields: - Oil & Gas - Refinery - Fertilizers - Petrochemicals #Duties_and_responsibilities • Control the mechanical maintenance of the Plant's rotating equipment. • Able to supervise and lead contractor mechanical teams considering the safety, quality and duration of work. • To issue technical reports for minor & major repair activities and feedback on the Computerized Maintenance Management System (CMMS) • Familiar with all HSE rules in plants Send CV's to: rec1@rp-jobs.com Write (Mechanical Rotating Equipment Specialist) in the subject line or it will be neglected -
For immediate hiring in a well-known multinational Gas & Oil company.
#Utilities_trainer
#Job_description:
Prepare in electronic format, training course material content from PFD's, P&ID's, SOP, OM manuals, Vendor supplied course material and field observations
Conduct formal Utilities Specific classroom training
· Implement Conduct, track OJT activities, and report Progress.
Assist in set-up and administration of a competency Based system for field and DCS panel operators
#Job_requirements:
- Bachelor degree in Mechanical/Electrical Engineering or Equivalent
- Minimum 7 Years in Utilities Operations in any of the following fields:
- Oil & Gas
- Refinery
- Fertilizers
- Petrochemicals
- Interested candidates are kindly requested to drop their CVs on: rec1@rp-jobs.com
Quoting job title in the subject line.
-You can recommend your friends/colleagues in the same field
-
A leading well-known multinational company in the oil and gas field is seeking to hire in Egypt
#Mechanical_Rotating_Equipment_Specialist
#Job_qualifications:
• BSc. Of Engineering (Mechanical)
• 6 to 10 Years in Mechanical Rotating Equipment Maintenance in any of the following fields:
- Oil & Gas
- Refinery
- Fertilizers
- Petrochemicals
#Duties_and_responsibilities
• Control the mechanical maintenance of the Plant's rotating equipment.
• Able to supervise and lead contractor mechanical teams considering the safety, quality and duration of work.
• To issue technical reports for minor & major repair activities and feedback on the Computerized Maintenance Management System (CMMS)
• Familiar with all HSE rules in plants
Send CV's to: rec1@rp-jobs.com
Write (Mechanical Rotating Equipment Specialist) in the subject line or it will be neglected
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There are many ways that such a device can be made, and what Jek says may be the way this one works. It can also be done with a ball screw powered by a small electric motor. Without more details, no one will be able to say with certainty how t this one works. DrD
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If that's the air pressure gauge on a side, than it must have some sort of an air pump. If so, I'm guessing the capacity of this thing wouldn't be high. I mean it wouldn't be able to lift a car by itself. I'm guessing there is an air pump and some sort of an air bag (so that it could expand).
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Its Membranes cost is the reason behind its unpopularity. I think so. -
Nice
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Hello This is S.Srinivas from wool industry. We have cupola furnace coke fired. We send Blast air thru Fan of capacity 11000 cfm and 50HP motor direct coupling. damper controlled We charge Raw material batch wise, 4 batches per hour and 500 kgs each batch. QUERY: When ever iam trying to open blast air damper more than 50%, it is taking 70 amps. So any suggestions to open damper to 90% without increasing the load by 65 amps.
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Where vibration is usefull.
parsottam replied to parsottam's topic in Oil & Gas's Fact & effact of vibrations
vibration is useful in many industrial applicable like material handing system, like screening.. -
What is special precautions required for selecting fire rated rolling shutters? what is the basis and material used for designing fire rated rolling shutters? Up to how much time it can withstand fire without damage?
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Why multi stage OH1 or OH2 type pump are not used in refinery, chemical and petro-chemical, fertilizer ans Oil & Gas industries?
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Which type of lubrication system is this?
parsottam commented on saurabhjain's blog entry in Mechanical Engineering Questions
it is force lubrication system, you may check API 614 for shaft lubrication system to study in depth.. -
Optimization constraint function ideas
Henry Kurniadi replied to aldosebastian123's topic in Aerospace engineering Forum
Stress and deflections are primarily function of diameter. Buckling could be said combination of both diameter and thickness. Stiffness (for vibration) primarily function of diameter. Mass (and material costs) primarily function of thickness. -
I’m doing a problem on minimizing mass of a hollow wind turbine tower. My design variables are the thickness of the wall and internal diameter. I’m having trouble finding constraint functions, since all that I could find (stresses, deflections, buckling) increase in value as both the design variables decrease, so if I pick two of them one will be “shadowed”/dominated by the other constraint. Does anyone have any creative ideas for another constraint, that preferably increases with wall thickness but decreases with internal diameter? Or maybe some other design variables combinations that relate to mass? -
Damien - You do bring up a great point. I would like to hear more about the approach you are taking in giving apprenticeships. Would you share? -
Also, adding more pulley means that the vertical movement reduced for each additional pulley. using 1 pulley, F = W, you move F 1 m, you get W lifted for 1 m. using 2 pulley, F = W/2, you move F 1 m, you get W lifted for only 0.5 m. using 3 pulley, F = W/3, you move F 1 m, you get W lifted for only 0.333 m. But mostly, what DrD said.... friction
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Do you want to make roller. With this tool you can make roller easily. This is tutorial video: https://www.youtube.com/watch?v=bQkY-0Pc7FA
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Are Mechanical Engineering Students career-ready?
Damien Burton replied to Barbara Domurat Turner's topic in Career Guidance
Not necessarily, some schools and colleges are sending students into the workplace with incorrectly achieved qualifications; I am not a cynic but a witness of this, this is why I left main stream teaching this year and pursued giving apprenticeships to budding engineers. - Earlier
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Thank you very much Professor!
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For immediate hiring in a well-known multinational Gas & Oil company.· 0 replies
#Utilities_trainer
#Job_description:
Prepare in electronic format, training course material content from PFD's, P&ID's, SOP, OM manuals, Vendor supplied course material and field observations
Conduct formal Utilities Specific classroom training
· Implement Conduct, track OJT activities, and report Progress.
Assist in set-up and administration of a competency Based system for field and DCS panel operators
#Job_requirements:
- Bachelor degree in Mechanical/Electrical Engineering or Equivalent
- Minimum 7 Years in Utilities Operations in any of the following fields:
- Oil & Gas
- Refinery
- Fertilizers
- Petrochemicals
- Interested candidates are kindly requested to drop their CVs on: rec1@rp-jobs.com
Quoting job title in the subject line.
-You can recommend your friends/colleagues in the same field
-
A leading well-known multinational company in the oil and gas field is seeking to hire in Egypt· 0 replies
#Mechanical_Rotating_Equipment_Specialist
#Job_qualifications:
• BSc. Of Engineering (Mechanical)
• 6 to 10 Years in Mechanical Rotating Equipment Maintenance in any of the following fields:
- Oil & Gas
- Refinery
- Fertilizers
- Petrochemicals
#Duties_and_responsibilities
• Control the mechanical maintenance of the Plant's rotating equipment.
• Able to supervise and lead contractor mechanical teams considering the safety, quality and duration of work.
• To issue technical reports for minor & major repair activities and feedback on the Computerized Maintenance Management System (CMMS)
• Familiar with all HSE rules in plants
Send CV's to: rec1@rp-jobs.com
Write (Mechanical Rotating Equipment Specialist) in the subject line or it will be neglected
-
-
In a car radiator and fan are used to cool the engine.· 1 reply
What is the heat transfer model involved?
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Posts
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By Ammar Burhani · Posted
Thank you very much for the help! It really means a lots. -
By saba tajhiz · Posted
A fan coil unit is the name of the device which uses a coil and a fan to heat or cool a room without connecting to duct work. These devices are systems or machines that eliminates hot air and replace it with cold and humid air by circulating cooling the air. A Fan coil unit is a device that includes fan blower and coil for heat exchange. The task of this machine is to release air into the desired space. Cooling of cold water inside the coil (supplied through the chiller) and passing air from this cooling coil cause cool air. do you know something more? -
By Oscar Gerrell · Posted
Hey there. I’m working on an electric skateboard project where I have a plank of wood with a bike wheal on the back and a chain to drive the whole thing. I can’t find the correct motor to power the whole thing and could really do with some help to do so. I need something with enough torque so it can move a lot of weight and it to be fast too. I can’t spend to much either. Thanks -
There are many ways that such a device can be made, and what Jek says may be the way this one works. It can also be done with a ball screw powered by a small electric motor. Without more details, no one will be able to say with certainty how t this one works. DrD -
If that's the air pressure gauge on a side, than it must have some sort of an air pump. If so, I'm guessing the capacity of this thing wouldn't be high. I mean it wouldn't be able to lift a car by itself. I'm guessing there is an air pump and some sort of an air bag (so that it could expand).
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