how the fuck did someone had an idea like this, desiged this, convinced someone to invest, constructed it and improved to a commercially viable form is just beyond me...
It didn't happen all at once. This is the product of decades of design. You could come up with something that is the same in principle but has a much simpler boiler, with exhaust from any kind of engine. The first HRSG was probably much simpler than what you see here, and what you see is the product of a long evolution of boiler design. Nonetheless, it is pretty ingenious.
HRSG’s I’ve seen have gas burners aswell so if you take the load off of the gas turbine, you can increase the gas burners throughout the HRSG to compensate to still produce steam
I work on a boiler very similar to this. Yes, it can work with all flow/ power levels. Typically when the unit is up and running at steady state, the steam turbine produces as much power as it can with the given heat input, and total power level is raised and lowered by throttling up and down the combustion turbine.
Tubes full of water, boiling water, and steam. This video shows the tube sections, but it doesn't explain everything. Some of the tubes contain water which is heated up to near boiling temperature; some of the tubes contain boiling water, and some contain steam which is further heated to higher than boiling temperature. Note that there are 3 pressure systems. Each system contains economizers (water heaters), boiling tubes, and steam tubes. Also, the steam from the turbine returns to the boiler and is heated again, in the section closest to the combustion turbine. I work on something similar to this.
The LP system acts as a deaerator for the higher pressure systems. Water normally contains air, and the air is an unwanted contaminant which contributes to corrosion. This is a much bigger problem in the higher pressure systems; the HP drums have higher corrosion rates because of the higher temperature and pressure, and any oxygen in the water whatsoever is unacceptable. Any air which is in the feed water evaporates with the steam in LP section, and the de aerated water from the LP section is then pumped into the higher pressure sections. You could design a HRSG with only one pressure (that's probably what the first ones looked like) but it would be limited to lower pressure and temperature overall, which would reduce efficiency.
how the fuck did someone had an idea like this, desiged this, convinced someone to invest, constructed it and improved to a commercially viable form is just beyond me...
It didn't happen all at once. This is the product of decades of design. You could come up with something that is the same in principle but has a much simpler boiler, with exhaust from any kind of engine. The first HRSG was probably much simpler than what you see here, and what you see is the product of a long evolution of boiler design. Nonetheless, it is pretty ingenious.
Hi, why three different pressure and drums (HP, IP, LP) in HRSG
This looks like the nooter erikson generators we are building right now.
Can we use an HRSG if we have varying exhaust flow rates?
HRSG’s I’ve seen have gas burners aswell so if you take the load off of the gas turbine, you can increase the gas burners throughout the HRSG to compensate to still produce steam
I work on a boiler very similar to this. Yes, it can work with all flow/ power levels. Typically when the unit is up and running at steady state, the steam turbine produces as much power as it can with the given heat input, and total power level is raised and lowered by throttling up and down the combustion turbine.
what types of heat exchanger used in hrsg?
Tubes full of water, boiling water, and steam. This video shows the tube sections, but it doesn't explain everything. Some of the tubes contain water which is heated up to near boiling temperature; some of the tubes contain boiling water, and some contain steam which is further heated to higher than boiling temperature. Note that there are 3 pressure systems. Each system contains economizers (water heaters), boiling tubes, and steam tubes. Also, the steam from the turbine returns to the boiler and is heated again, in the section closest to the combustion turbine. I work on something similar to this.
why is there an HP and LP in HRSG? what if there is no LP? and what are the consequences?
Nana Nama saya the only consequence would be loss of efficiency.
@@motor_head5154 thank you
The LP system acts as a deaerator for the higher pressure systems. Water normally contains air, and the air is an unwanted contaminant which contributes to corrosion. This is a much bigger problem in the higher pressure systems; the HP drums have higher corrosion rates because of the higher temperature and pressure, and any oxygen in the water whatsoever is unacceptable. Any air which is in the feed water evaporates with the steam in LP section, and the de aerated water from the LP section is then pumped into the higher pressure sections.
You could design a HRSG with only one pressure (that's probably what the first ones looked like) but it would be limited to lower pressure and temperature overall, which would reduce efficiency.
im sorry what is HP LP IP stands for?
High low intermediate pressure
@@mzez8748 ty man
High pressure low pressure and immediate pressure
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