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.
Gas fired water heater - sizing
  • · Replies 9 ·
Replies
9
Views
3K
Keeping People Alive on Mars: A Discussion
  • · Replies 3 ·
Replies
3
Views
1K
Need help picking material for sole for a running shoe
  • · Replies 7 ·
Replies
7
Views
3K
Drag and Lift Sensors for a Subsonic Wind Tunnel
  • · Replies 2 ·
Replies
2
Views
5K
Help me design an attendance process for lectures
  • · Replies 13 ·
Replies
13
Views
2K
Can i make a 100% efficient device?
  • · Replies 10 ·
Replies
10
Views
5K
Waste heat with both high and low temperatures
  • · Replies 1 ·
Replies
1
Views
1K
Compressible Flow, Pressure and Mass Flowrate
  • · Replies 1 ·
Replies
1
Views
2K
Can someone help me figure out how much torque I need
  • · Replies 8 ·
Replies
8
Views
3K
How to design a rpm and torque indicator from a fan?
  • · Replies 2 ·
Replies
2
Views
2K
How to charge a low amperage battery?
  • · Replies 2 ·
Replies
2
Views
2K
Hyperloop - essentially new transport
  • · Replies 28 ·
Replies
28
Views
8K
Solving Water Leak Problem: Expert Input Needed | Fred
  • · Replies 2 ·
Replies
2
Views
2K
Why Does the Induction Factor Peak in the Downwind Part of VAWT Modeling?
  • · Replies 1 ·
Replies
1
Views
5K
Where can one still find a slide rule?
  • · Replies 22 ·
Replies
22
Views
11K
Algorithm for Numerical approximation to add data points
  • · Replies 5 ·
Replies
5
Views
2K
Compressed nitrogen v flow rate question
  • · Replies 9 ·
Replies
9
Views
9K
How Can You Limit Heat Transfer Between Two Metallic Objects?
  • · Replies 3 ·
Replies
3
Views
2K
Why aren't there more heat pumps in process plants?
  • · Replies 14 ·
Replies
14
Views
2K
How to Design a Hot-Melt System for Bead Deposition?
  • · Replies 2 ·
Replies
2
Views
1K
Redirecting lost heat from propane heater
  • · Replies 2 ·
Replies
2
Views
2K
Simplified Method of Combustion Turbine Supercharging
  • · Replies 9 ·
Replies
9
Views
2K
Magnet Repulsion: Stacking 10 Magnets in a Tube
  • · Replies 4 ·
Replies
4
Views
2K
Low voltage Low heat, battery powered heater
  • · Replies 8 ·
Replies
8
Views
3K
Looking for a cost-effective filter for fluorscence
  • · Replies 1 ·
Replies
1
Views
974
How to calculate value (kg) material?
  • · Replies 2 ·
Replies
2
Views
2K
Discover the Fascinating Mechanism of Self-Charging Kinetic Watches
  • · Replies 3 ·
Replies
3
Views
1K
What Are Cheaper Alternatives to Quartz Tubing for Containing Hot Plasma?
  • · Replies 6 ·
Replies
6
Views
3K
Coin Flipping Robot - Exact Paths & Results?
  • · Replies 1 ·
Replies
1
Views
2K
Need suggestions on transfering compressed air to rotating object
  • · Replies 3 ·
Replies
3
Views
2K
Can High-Intensity Focused Ultrasound Penetrate Metal?
  • · Replies 4 ·
Replies
4
Views
2K
How Do Internal Combustion Engines Adjust to Changes in Speed and Torque Demand?
  • · Replies 18 ·
Replies
18
Views
3K
Where to buy premeasured, precut, prebent breadboard wire?
  • · Replies 6 ·
Replies
6
Views
2K
Can memristance be simulated using op-amps?
  • · Replies 1 ·
Replies
1
Views
1K
Can air pressure stop in a pipe?
  • · Replies 2 ·
Replies
2
Views
2K
Why liquids transported in cylindrical or elliptical cylindrical
  • · Replies 14 ·
Replies
14
Views
5K
Calculating time for Linear actuator to operate?
  • · Replies 1 ·
Replies
1
Views
2K
What is the Relationship Between Piezoelectric Materials and Electrical Output?
  • · Replies 4 ·
Replies
4
Views
2K
DIY Leaf-Vacuum: Using Venturi Equations for Pressure Calculation
  • · Replies 4 ·
Replies
4
Views
4K
What are all the currently known nosecone/ogive geometries?
  • · Replies 1 ·
Replies
1
Views
2K
Why "rate random walk" exists on gyroscpe ?
  • · Replies 1 ·
Replies
1
Views
3K
Gravitational Energy by breaking down volcanoes / mountains?
  • · Replies 1 ·
Replies
1
Views
1K
Water Pressure in an Isolated System
  • · Replies 2 ·
Replies
2
Views
3K
Lifing in Aviation: Definition & Meaning
  • · Replies 11 ·
Replies
11
Views
12K
How to get bulk downloads of utility patents from companies
  • · Replies 7 ·
Replies
7
Views
3K
Fluids: Conservation of Momentum
  • · Replies 1 ·
Replies
1
Views
2K
Understanding the Logic Circuit of JK Flip Flop with Direct Inputs
  • · Replies 4 ·
Replies
4
Views
2K
Structures, Beams: Proof of formulas for a beam
  • · Replies 2 ·
Replies
2
Views
7K
What size of tube steel is needed for a 1500-2000 lb load on a 48 x 76 frame?
  • · Replies 4 ·
Replies
4
Views
3K
Experimental Design - Measuring Force Vector on Cable
  • · Replies 2 ·
Replies
2
Views
2K
Calculate Yaw Angle: Best Sensor for Device Movement
  • · Replies 2 ·
Replies
2
Views
3K
Are there any microcontroller (mcu) course in university?
  • · Replies 4 ·
Replies
4
Views
2K
Flat start for power systems design
  • · Replies 7 ·
Replies
7
Views
6K
How can I accurately calculate ambient temperature using sensor data?
  • · Replies 4 ·
Replies
4
Views
8K
How to find thickness of steel plate
  • · Replies 4 ·
Replies
4
Views
4K
Charge reconfiguration on wires connnected to capacitor
  • · Replies 3 ·
Replies
3
Views
1K
Motherboard bus speed physical maximum
  • · Replies 4 ·
Replies
4
Views
2K
What is the Design Procedure for an Eccentric Lobe and Crankshaft?
  • · Replies 6 ·
Replies
6
Views
2K
Effect on throwing a ball up in a car on it's efficiency
  • · Replies 1 ·
Replies
1
Views
1K
How can I create affordable soundproofing for my apartment bedroom?
  • · Replies 6 ·
Replies
6
Views
3K
LED Solar Simulator: Design, Schematics & LEDs
  • · Replies 2 ·
Replies
2
Views
2K
Experimental Critical Buckling Load
  • · Replies 4 ·
Replies
4
Views
5K
Pretension wire with horizontal load
  • · Replies 2 ·
Replies
2
Views
2K
How to evaluate avg speed at which a driver approaches curve
  • · Replies 7 ·
Replies
7
Views
2K
Magnetic Shielding for Motion-Based Project
  • · Replies 10 ·
Replies
10
Views
3K
Looking for some help on a mechanical design
  • · Replies 4 ·
Replies
4
Views
2K
HONDA CIVIC 2010 IMA Phase out.
  • · Replies 1 ·
Replies
1
Views
1K
Alternator Vibration During Excitation
  • · Replies 2 ·
Replies
2
Views
3K
Structural Vibrations Analysis & Simulation
  • · Replies 1 ·
Replies
1
Views
1K
Fiber Optic Gyros: Accuracy & Price | Camera/Gun Stabilization
  • · Replies 9 ·
Replies
9
Views
3K
Ventilation Requirements of different Labs
  • · Replies 1 ·
Replies
1
Views
1K
Hybrid CIVIC 2010 without hybrid battery
  • · Replies 3 ·
Replies
3
Views
2K
Can You Calculate Room Temperature Increase With Given Heat Output and Airflow?
  • · Replies 1 ·
Replies
1
Views
1K
Is an Arc Reactor Possible in Real Life?
  • · Replies 1 ·
Replies
1
Views
2K
Is Multiple batteries for efficiency the answer?
  • · Replies 13 ·
Replies
13
Views
2K
Rigid Body Motion/Out of convergence in ansys Classic 14.5
  • · Replies 1 ·
Replies
1
Views
1K
What color clothing is safest during a nuclear explosion?
  • · Replies 27 ·
Replies
27
Views
11K
Tools every engineer should have for measurement?
  • · Replies 12 ·
Replies
12
Views
2K
Calculate Time for Fridge to Cool 1m3 Air from 20°C to 3°C
  • · Replies 3 ·
Replies
3
Views
2K
FEA of hyperelastic arteries in ANSYS APDL
  • · Replies 2 ·
Replies
2
Views
2K
Estimate pipe diameter based on flow rate
  • · Replies 6 ·
Replies
6
Views
3K
Sensor to detect paramagnetic materials from a distance
  • · Replies 1 ·
Replies
1
Views
1K
Find the Perfect Wax 3D Printer for Your Needs - Discover Now!
  • · Replies 1 ·
Replies
1
Views
2K
Air valve operated by permanent & electro magnet
  • · Replies 3 ·
Replies
3
Views
2K
How does a tiny gyro stabilize a massive gun turret?
  • · Replies 12 ·
Replies
12
Views
2K
When will an airflow cause whistling?
  • · Replies 5 ·
Replies
5
Views
6K
Is a 3d printer a good investment?
  • · Replies 10 ·
Replies
10
Views
3K
Cenco Electrical Device Found help needed identifying
  • · Replies 16 ·
Replies
16
Views
3K
How to Read Capacitance on Ceramic Capacitors | 50 Diff. Capacitors
  • · Replies 2 ·
Replies
2
Views
4K
Comparing the Cost of High Temperature Alloys for Sodium Chloride Applications
  • · Replies 18 ·
Replies
18
Views
11K
Analysis of a wind vane/weather vane
  • · Replies 4 ·
Replies
4
Views
5K
What is the reasoning behind µ < 1?
  • · Replies 2 ·
Replies
2
Views
1K
Viable Railgun Setup? (ping pong balls)
  • · Replies 10 ·
Replies
10
Views
4K
Physical realization of a system
  • · Replies 12 ·
Replies
12
Views
6K
Predicting Water Spillage from Inclined Cubical Container
  • · Replies 3 ·
Replies
3
Views
1K
Caculate air flow using tank pressure
  • · Replies 2 ·
Replies
2
Views
2K
Air turbine? to increase air speed/compress air
  • · Replies 11 ·
Replies
11
Views
2K
How to build something to vacuum and convey concrete powder
  • · Replies 6 ·
Replies
6
Views
3K
Help Building AC Pumps: Is It Realistic?
  • · Replies 12 ·
Replies
12
Views
2K
Added weight to front of tractor
  • · Replies 28 ·
Replies
28
Views
9K