General Engineering Forum

Post thread
Join the discussion of general engineering topics. The design, building, and use of engines, machines, and structures. Use the forum for any engineering topics not applicable to the specific categories.
Calculating Heat Convection Output: Clarification Needed
  • · Replies 1 ·
Replies
1
Views
5K
Pump Flow Calculation: Selecting Areas & Determining Rate
  • · Replies 1 ·
Replies
1
Views
4K
Heat pump supply and return temperatures
  • · Replies 7 ·
Replies
7
Views
11K
How does an aspirator(destoner) work?
  • · Replies 3 ·
Replies
3
Views
7K
Question regarding y-axis units in FFT
  • · Replies 3 ·
Replies
3
Views
5K
Optimizing Temp. Tappings on Distillation Columns - Ideas/Experience?
  • · Replies 6 ·
Replies
6
Views
3K
What Can Induce Electron Flow and Why Are Magnets So Dominant?
  • · Replies 5 ·
Replies
5
Views
4K
(Need Verifications) Wear Rate for adhesive rubbing of 2 materials
  • · Replies 1 ·
Replies
1
Views
3K
Why Do We Neglect Short Circuit Current When Calculating CMOS Inverter Delay?
  • · Replies 1 ·
Replies
1
Views
3K
Heat Pump COP: Air-to-Water Explained
  • · Replies 6 ·
Replies
6
Views
4K
Bicycle seat post shock absorbtion.
  • · Replies 5 ·
Replies
5
Views
7K
Problem in reading the 2nd data from pcf8563 real time clock by i2c
  • · Replies 3 ·
Replies
3
Views
3K
O-ring groove specifications and questions
  • · Replies 6 ·
Replies
6
Views
4K
Selecting magnet to be used along with hall effect sensors.
  • · Replies 1 ·
Replies
1
Views
3K
Alternative Light Curtains , has someone designed them?
  • · Replies 5 ·
Replies
5
Views
3K
Time Reduction for Batch transfer by using a pump
  • · Replies 3 ·
Replies
3
Views
3K
How do you find the gears you need in motors?
  • · Replies 5 ·
Replies
5
Views
4K
What is the difference in the shown waveforms conceptually?
  • · Replies 3 ·
Replies
3
Views
2K
Damp dirt under great, sudden, pressure, acts like liquid?
  • · Replies 5 ·
Replies
5
Views
3K
Difference power dissipation and actual power dissipation
  • · Replies 7 ·
Replies
7
Views
5K
Heating Torch Using a Fuel That Does Not Contain Carbon
  • · Replies 13 ·
Replies
13
Views
4K
VAWT Airfoil Design: Learn How to Calculate Power Output
  • · Replies 12 ·
Replies
12
Views
8K
Visualizing Math: Tips & Tricks for Newbies
  • · Replies 4 ·
Replies
4
Views
9K
Flow of gas in a t-junction with one junction sealed.
  • · Replies 9 ·
Replies
9
Views
4K
Cell phone tips (for visually challenged users)
  • · Replies 1 ·
Replies
1
Views
3K
Voltage Gating & Microscopic Observation for Measuring Optical Properties
  • · Replies 2 ·
Replies
2
Views
3K
Engineering RFP / specs.: Restricting country of origin.
  • · Replies 4 ·
Replies
4
Views
2K
What Caused the Proton Rocket to Crash?
  • · Replies 6 ·
Replies
6
Views
4K
Seeing Orthogonal views in 3-D?
  • · Replies 5 ·
Replies
5
Views
3K
Good online or physical location junk/scrap electronics,science
  • · Replies 4 ·
Replies
4
Views
6K
Understanding the Legalities and Limitations of Building a PM RF Transmitter
  • · Replies 8 ·
Replies
8
Views
5K
How does rolling resistance of rail wheel depend on diameter?
  • · Replies 5 ·
Replies
5
Views
4K
Need advice on capturing sound
  • · Replies 4 ·
Replies
4
Views
3K
Verifying a 2.5mm Hole: IR Light Sensor Solution?
  • · Replies 4 ·
Replies
4
Views
3K
What is the Best Approximation for Heat Transfer in Two-Dimensional Systems?
  • · Replies 4 ·
Replies
4
Views
4K
Creating a Digital Logic Timer for a 120-240VAC Relay System: Tips and Solutions
  • · Replies 4 ·
Replies
4
Views
3K
Increase Turbine Efficiency by Increasing Vacuum in Condenser
  • · Replies 9 ·
Replies
9
Views
5K
Electric Circuits and Gadgets - Basics Please
  • · Replies 4 ·
Replies
4
Views
2K
Hexamagnetic levitation using neodymium ball magnets
  • · Replies 8 ·
Replies
8
Views
4K
Restore sgn(f(x)), f(x)=abs(sinc(x)) ?
  • · Replies 2 ·
Replies
2
Views
3K
Putting videos into the public domain
  • · Replies 4 ·
Replies
4
Views
3K
Lithium Hydride as energy source for Combustion Engines
  • · Replies 5 ·
Replies
5
Views
6K
Mechanical or Civil Engineering: Which Should I Choose?
  • · Replies 3 ·
Replies
3
Views
3K
Calculating the weight of an object required to overcome grease seal
  • · Replies 1 ·
Replies
1
Views
3K
Backpressure and Hose Length in non-exhaust application.
  • · Replies 1 ·
Replies
1
Views
2K
Solar Panels: Improving performance at low sun angles
  • · Replies 3 ·
Replies
3
Views
5K
Help in fuel cell main references
  • · Replies 1 ·
Replies
1
Views
2K
Solving Euler-Bernoulli Beam Equation: Second Area of Moment
  • · Replies 7 ·
Replies
7
Views
4K
Translational and rotational forces in a vehicle moving along a string
  • · Replies 1 ·
Replies
1
Views
3K
How to Design a Gas Sampling Probe for Varying Exhaust Gas in a Brick Catalyst?
  • · Replies 8 ·
Replies
8
Views
4K
How can I solve for beta and gamma in a cartesian vector addition problem?
  • · Replies 1 ·
Replies
1
Views
3K
How to calculate permanent load?
  • · Replies 1 ·
Replies
1
Views
6K
Very Small Scale Power Generation in Rural Asia
  • · Replies 15 ·
Replies
15
Views
4K
Useful Representations of Log Audio Frequency Spectrum
  • · Replies 2 ·
Replies
2
Views
4K
Diffusion of a species through a sphere
  • · Replies 1 ·
Replies
1
Views
4K
What Factors Affect the Speed of Sound in Water During Hydrophone Experiments?
  • · Replies 5 ·
Replies
5
Views
4K
First F-35B Night Vertical Landing
  • · Replies 5 ·
Replies
5
Views
3K
Designing a DIY Wireless Car Remote: Steps and Resources
  • · Replies 5 ·
Replies
5
Views
3K
Where Can I Find Online Lessons and Projects for Early Engineering Learning?
  • · Replies 2 ·
Replies
2
Views
3K
Tutorials for coil design in Maxwell 3D
  • · Replies 1 ·
Replies
1
Views
3K
Need Help Designing a Linear Controller for Yaw Motion of a Hexacopter?
  • · Replies 3 ·
Replies
3
Views
4K
Moment Analysis: Sign Conventions & Force Selection
  • · Replies 1 ·
Replies
1
Views
3K
Weight driven pendulum & torque?
  • · Replies 2 ·
Replies
2
Views
3K
Need assistance designing irrigation system
  • · Replies 2 ·
Replies
2
Views
3K
Can we design vehicle for animal self powered?
  • · Replies 63 ·
3
Replies
63
Views
13K
Low Reynolds Number Flow Visualization Techniques
  • · Replies 11 ·
Replies
11
Views
5K
Pipe Pressure Increase: Investigating Unit Ventilator Valves in Reverse Loop
  • · Replies 6 ·
Replies
6
Views
3K
Strain on NPT thread in high pressure chamber
  • · Replies 7 ·
Replies
7
Views
8K
How Can I Build a Backyard Wave Pool for Surfing?
  • · Replies 2 ·
Replies
2
Views
9K
What Type of Wire Is Best for Flexibility and Weight Support?
  • · Replies 13 ·
Replies
13
Views
4K
Intuitiveness of EE/ME versus SE
  • · Replies 1 ·
Replies
1
Views
3K
What kind of wood should I use for a platform that holds 200 lbs
  • · Replies 3 ·
Replies
3
Views
5K
Computer Engineering or Computer Science Major?
  • · Replies 3 ·
Replies
3
Views
6K
Different Branches of Engineering
  • · Replies 7 ·
Replies
7
Views
3K
Optimal control, Fourier transform, operating system, multimedia and w
  • · Replies 3 ·
Replies
3
Views
3K
Is there an intrinsically safe combustible dust monitor for wood pellets?
  • · Replies 10 ·
Replies
10
Views
4K
Design Challenge: Need Help Solving Magnet Problem
  • · Replies 7 ·
Replies
7
Views
4K
Max Flow Rate of HTA100H-304 Air Pump for Pipe Systems: 0.19 kg/s
  • · Replies 4 ·
Replies
4
Views
4K
Welding Technologies For Lexan/ABS
  • · Replies 1 ·
Replies
1
Views
3K
1st order transfer function from data
  • · Replies 1 ·
Replies
1
Views
2K
Is My Motor Speed Affecting the Pulley System?
  • · Replies 5 ·
Replies
5
Views
6K
Calculating the strain in three different ways - experimental error?
  • · Replies 1 ·
Replies
1
Views
3K
Question on vacuum heat treatment
  • · Replies 1 ·
Replies
1
Views
4K
Buying a perfect air conditioner for my room
  • · Replies 5 ·
Replies
5
Views
10K
Efficient Tunnel Inspection Methods: Seeking Suggestions
  • · Replies 6 ·
Replies
6
Views
3K
Which EIT Exam Should I Take for the Best Career Outlook?
  • · Replies 2 ·
Replies
2
Views
2K
Feedback control via ODE variable coefficients?
  • · Replies 3 ·
Replies
3
Views
3K
Inquiry on effects surface roughness on Tidal Turbines.
  • · Replies 1 ·
Replies
1
Views
2K
Thrust vs Horsepower: Comparing Engines
  • · Replies 4 ·
Replies
4
Views
6K
Minimal Dimensions for Maximum Bending Moment
  • · Replies 4 ·
Replies
4
Views
3K
Is Blowing Hot Air Near Gas Pipes Safe for Indoor Air Conditioners?
  • · Replies 7 ·
Replies
7
Views
8K
Confusion between Comp. Eng. and Comp. Science
  • · Replies 3 ·
Replies
3
Views
3K
Water Does Not Leak Back To The Other Side.
  • · Replies 19 ·
Replies
19
Views
4K
What Does Error: Unclassifiable Statement Mean?
  • · Replies 1 ·
Replies
1
Views
2K
Circuits class textbook recommedations?
  • · Replies 2 ·
Replies
2
Views
2K
Water requirement to extinguish fire ?
  • · Replies 5 ·
Replies
5
Views
7K
Refrigeration-COP values in different climates
  • · Replies 1 ·
Replies
1
Views
3K
Mars One to be unveiling the design of their martian habitats
  • · Replies 7 ·
Replies
7
Views
4K
Idea for electromagnetic hover car (maglev car)?
  • · Replies 2 ·
Replies
2
Views
9K
Refrigeration - Work done by evaporator, condenser, expansion valve
  • · Replies 11 ·
Replies
11
Views
14K