1. What is an Oxygen Cylinder of Volume 30 Litres?

Definition: A standard medical oxygen cylinder containing 30 liters of compressed oxygen gas.

Purpose: Used in medical settings to provide supplemental oxygen to patients with respiratory conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Cylinder pressure (psi)
• \( V \) — Cylinder volume (30 liters)
• \( C \) — Conversion factor (0.28)

Duration Calculation: The total oxygen available is divided by the flow rate to determine how long the cylinder will last.

3. Importance of Oxygen Cylinder Calculations

Details: Proper calculation ensures patients receive continuous oxygen therapy without interruption and helps medical staff plan cylinder changes.

4. Using the Calculator

Tips: Enter the current cylinder pressure in psi and the prescribed oxygen flow rate in liters per minute.

5. Frequently Asked Questions (FAQ)

Q1: Why is the cylinder volume fixed at 30 liters?
A: This calculator is specifically designed for standard 30L medical oxygen cylinders, though the formula can be adapted for other sizes.

Q2: What's the typical pressure in a full cylinder?
A: A full oxygen cylinder typically has about 2000 psi (136 atm) of pressure.

Q3: How accurate is the conversion factor?
A: The 0.28 factor accounts for temperature and gas laws, providing a practical estimate for medical use.

Q4: What flow rates are typical for oxygen therapy?
A: Common flow rates range from 1-15 L/min depending on patient needs and prescription.

Q5: When should the cylinder be replaced?
A: Medical protocols typically recommend changing cylinders when pressure drops below 200 psi for safety.