1. What is Fire Water Tank Capacity?

Fire water tank capacity calculation determines the required storage volume for fire protection systems based on flow rate, duration, and system efficiency.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Fire Flow Rate — Required water flow rate in liters per minute
• Duration — Required fire fighting duration in minutes
• Efficiency — System efficiency factor (0-1)

Explanation: The formula calculates the minimum water storage capacity needed to support fire fighting operations, accounting for system losses and inefficiencies.

3. Importance of Tank Sizing

Details: Proper tank sizing is crucial for ensuring adequate water supply during fire emergencies, meeting regulatory requirements, and maintaining fire protection system reliability.

4. Using the Calculator

Tips: Enter flow rate in liters per minute, duration in minutes, and efficiency factor (typically 0.8-1.0). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical efficiency factor for fire water systems?
A: Efficiency factors typically range from 0.8 to 1.0, depending on system design and maintenance conditions.

Q2: How long should fire water supply last?
A: Duration requirements vary by jurisdiction and risk type, but typically range from 30 minutes to 2 hours.

Q3: What flow rates are typically required?
A: Flow rates depend on the protected area and hazard classification, ranging from 500 to over 5000 l/min.

Q4: Are there regulatory standards for tank sizing?
A: Yes, NFPA, local fire codes, and insurance requirements dictate minimum tank capacity standards.

Q5: Should safety factors be applied?
A: Yes, most designs include additional safety margins beyond calculated minimum requirements.