In a high-pressure boiler with a steam evaporative capacity of 100,000 kg/h, what is the minimum volume required for a blow-off tank?

To determine the minimum volume required for a blow-off tank in a high-pressure boiler, you need to consider the relationship between the steam evaporation rate, the specific volume of steam, and the time required for effective blow-off operations.

In this scenario, the steam evaporative capacity is given as 100,000 kg/h. To convert this to kg/s, you would divide by 3600 seconds in an hour, resulting in approximately 27.78 kg/s.

A blow-off tank must have adequate capacity to hold the blow-off steam temporarily before it is discharged or reused. The necessary volume of the tank can be calculated by considering factors including the volume occupied by steam (the specific volume) and the flow rate. The generated steam will occupy a significantly larger volume than the water in liquid form due to the differences in density between water and steam.

For high-pressure boilers, a general guideline often used for the minimum volume of a blow-off tank is around the equivalent of the evaporation capacity adjusted for specific conditions, typically resulting in a requirement around 2.5 m³ to 3.0 m³ for the given capacity. In this case, the calculated minimum volume of 2.27 m³ would align with standard design practices, effectively