Welding also has a relationship between gas pressure and the welding volume. This calculation use Boyle's Law for the relationship between pressure and volume. This formula is . Based on this information solve the following problem
1. Gas flow = 3 psi at the welder
2. System gas flow = 80 psi (from the regulator).
3. By simplifying Boyle's Law and adding the hose base psi (15) you can calculate the hose volume
4. Formula Where P1 is the pressure of the line when welding is stopped, P2 is the pressure when welding.
Solve for the hose volume. This number tells you how much the hose will expand based on the pressure(s).
To solve for the hose volume using Boyle's Law, we can use the formula:
P1 * V1 = P2 * V2
Where:
P1 = initial pressure (gas flow at the welder) = 3 psi
V1 = initial volume (hose volume)
P2 = final pressure (system gas flow) = 80 psi
V2 = final volume (expanded hose volume)
Since the problem states that the line pressure P1 includes the hose base pressure of 15 psi, we can rewrite the formula as:
(P1 + 15) * V1 = P2 * V2
Substituting the given values:
(3 + 15) * V1 = 80 * V2
18 * V1 = 80 * V2
Finally, we can solve for the hose volume V1 by dividing both sides of the equation by 18:
V1 = (80 * V2) / 18