Enter the steam consumption (kg/h), the total dissolved solids in the water (ppm), and the maximum allowable dissolved solids (ppm) into the Boiler Blowdown Rate Calculator. The calculator will evaluate the Boiler Blowdown Rate.

## Boiler Blowdown Rate Formula

The following formula is used to calculate the Boiler Blowdown Rate.

BBR  = SC * TDSW / (TDSM-TDSW)

Variables:

• BBR is the Boiler Blowdown Rate (kg/h)
• SC is the steam consumption (kg/h)
• TDSW is the total dissolved solids in the water (ppm)
• TDSM is the maximum allowable dissolved solids (ppm)

## How to Calculate Boiler Blowdown Rate?

The following steps outline how to calculate the Boiler Blowdown Rate.

1. First, determine the steam consumption (kg/h).
2. Next, determine the total dissolved solids in the water (ppm).
3. Next, determine the maximum allowable dissolved solids (ppm).
4. Next, gather the formula from above = BBR  = SC * TDSW / (TDSM-TDSW).
5. Finally, calculate the Boiler Blowdown Rate.
6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

steam consumption (kg/h) = 50

total dissolved solids in the water (ppm) = 20

maximum allowable dissolved solids (ppm) = 30

BBR  = SC * TDSW / (TDSM-TDSW) =  ?