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How to calculate steam source requirement?

correction 9.5pH

correction : each coil of 12mt length with 24bends ( total length of coil 288mt)

Thank you all for the discussion. Perfect cleaning is interesting but steam blowing with inadequate pressure and velocity can cause chemical corrosion due to the condensation and trapped debris if any. I feel sufficient airblowing and chemical flushing at 0.5pH will be better and effective...

What are the disadvantages, if we don't see in borescope and resort to steam blowing?

Does steam blowing add any value

We have been planning replacement of complete economizer banks in 500MW boiler of 25 years old. We planned sponge ball testing for thoroughness check of new coils before welding. Chemical flushing ( DM filling and ammonia dosing for up to 9.5 pH)of new banks after complete erection. Please...

100kW Solar PV system Connectivity is proposed as shown in the diagram. Grid Connectivity to a module with 200 Amps fuses at 415 v Swgr (at 'B') is proposed. 415 V MCC is highly important swgr located in a power plant. The question is what can be the best way of connectivity at 'B' so that any...