test 1 prep boilers and steam Flashcards
whos domain are boiler systems
power engineers
what are possible issues if boiler is not cleaned
- suspended solids
- dissolved compounds
- disolved gases
- sludge
- ph balance
what is an isolation valve
its not a type of valve but a use for one
its design is to isolate sections of a process to allow for sampling or using additives under controlled circumstances
what are some dissolved gases
O2 and CO2 are common ones that can lead to pitting or grooving inside the pipe
what is the overwhelming rule when dealing with chem techs
DON’T TOUCH THEIR STUFF
what are safety valves supposed to do usually
usually designed to shut and stay shut and may not be able to open without restarting the whole process
what causes deposition rates to increase
scale question
heat and it will lead to efficiency loss and with enough build up can lead to a catastrophic failure
what causes scale
the deposition of non-soluble salts
are safety valves and isolation valves interchangeable
No
what are some different fuel sources for boilers
- natural gas
- coal
- oil
- biomass
- nuclear
- garbage(if you’re norway)
