Note:
This formula calculates the Boiler Blowdown Rate based on
Feedwater TDS (F), Steam Generation Rate (S), and
Boiler Water TDS (B).
It helps determine the required blowdown rate to maintain proper water quality
and prevent scale buildup in boilers.
Understanding Parameters:
- Feedwater TDS (F) (ppm):
- Total Dissolved Solids (TDS) in the water entering the boiler.
- Lower feedwater TDS is preferred for better boiler efficiency.
- Steam Generation Rate (S) (kg/h):
- The amount of steam produced by the boiler per hour.
- Higher steam generation requires proper blowdown to maintain water quality.
- Boiler Water TDS (B) (ppm):
- Maximum acceptable TDS in the boiler water.
- Must be controlled to prevent scale formation and efficiency loss.
- Blowdown Rate (kg/h):
- The required amount of water to be removed from the boiler per hour.
- Calculated using the formula:
Blowdown Rate = (F × S) / (B - F).
Key Applications:
- Boiler Efficiency Maintenance:
- Ensures proper water quality and prevents scaling & corrosion.
- Industrial Boiler Operations:
- Used in power plants, manufacturing, and heating systems to optimize boiler performance.
- Water Conservation & Cost Savings:
- Helps in reducing excessive water wastage by optimizing blowdown cycles.
Validations & Input Constraints:
- Feedwater TDS must be positive:
- F > 0 because negative TDS values are not physically meaningful.
- If F ≤ 0, an error message will be displayed:
"Invalid input! Feedwater TDS must be a positive number."
- Steam Generation Rate must be positive:
- S > 0 as steam cannot be generated with zero or negative values.
- If S ≤ 0, an error message will be displayed:
"Invalid input! Steam generation rate must be a positive number."
- Boiler Water TDS must be positive and greater than Feedwater TDS:
- B > 0 and B > F to ensure correct calculations.
- If B ≤ 0, an error message will be displayed:
"Invalid input! Boiler Water TDS must be a positive number."
- If B ≤ F, an error message will be displayed:
"Invalid input! Boiler Water TDS must be greater than Feedwater TDS."
Conclusion:
This tool enables users to accurately calculate the boiler blowdown rate
to maintain efficient boiler operation, prevent scale formation, and optimize water usage.