Calculate power lossess against road gradients

  • Thread starter Carvinos
  • Start date
  • Tags
    Power
In summary, the conversation is about calculating the power losses of a 60 cc single cylinder water cooled engine against a 5% road gradient. The speaker is looking for help in calculating this for a school project involving a three-wheeler car with a speed of 30kmph. The suggested method is to calculate the vehicle's vertical speed and then multiply it by the vehicle's mass and G. The engine's displacement and cooling are not relevant for this calculation.
  • #1
Carvinos
7
0
i want to calcculate the power lossess of a 60 cc single cylinder water cooled engine against the 5% road gradients.can anyone help?
 
Engineering news on Phys.org
  • #2
Carvinos said:
i want to calcculate the power lossess of a 60 cc single cylinder water cooled engine against the 5% road gradients.can anyone help?

Welcome to the PF.

What is the context of your question? What vehicle is this small engine in? What speed is the vehicle moving? Is this just a paper calculation, a simulation, or do you intend to build it for a school project?
 
  • #3
To calculate the power required to drive up a hill at a certain speed, calculate the vehicle's vertical speed (speed*grade), and then multiply by the vehicle's mass and G. The engine's dispplacement and cooling are not relevant in this problem.

[tex]V_{h}=V_{tot}*Grade[/tex]

[tex]P_{req}=M*g*V_{h}[/tex]
 
  • #4
thnx for ur response.this is basically a school project and we have to build a three wheeler car, 2 wheels at the front and one at the rear and it is to be driven at 30kmph.thnx a lot once again.
 

FAQ: Calculate power lossess against road gradients

What is the formula for calculating power losses against road gradients?

The formula for calculating power losses against road gradients is: P = m x g x sin(θ) x v, where P is power loss in watts, m is the mass of the vehicle in kilograms, g is the acceleration due to gravity (9.8 m/s^2), θ is the road gradient in degrees, and v is the velocity in meters per second.

How does road gradient affect power losses?

Road gradient affects power losses by increasing the amount of work required to move a vehicle uphill. The steeper the gradient, the greater the power loss will be.

Can power losses against road gradients be reduced?

Yes, power losses against road gradients can be reduced by reducing the vehicle's weight, increasing the efficiency of the engine, and maintaining a steady speed while driving uphill.

Are power losses against road gradients significant?

Power losses against road gradients can be significant, especially for heavy vehicles or when driving on steep inclines. It is important to factor in these losses when planning a trip or calculating fuel efficiency.

How can power losses against road gradients be measured?

Power losses against road gradients can be measured using a dynamometer, which measures the amount of power required to move a vehicle on a specific gradient. This data can then be used to calculate the power losses using the formula mentioned in the first question.

Similar threads

Replies
69
Views
12K
Replies
3
Views
4K
Replies
4
Views
2K
Replies
3
Views
4K
Replies
1
Views
2K
Replies
5
Views
1K
Replies
12
Views
3K
Replies
3
Views
5K
Back
Top