you must purge the econommizer of air during start up . keep the vent open until you get a good flow of feedwater
Since sufficient feedwater is not supplied into the economizer though the heat is absorbed from flue gas at the boiler start-up and low load operation, steaming may occur in the economizer. Therefore the economizer recirculation line is provided between the furnace downcomer and the economizer inlet feedwater piping. This line provides the recirculation flow between the drum, the downcomer and the economizer so as to prevent steaming in the economizer. Economizer recirculation valve is only opened at initial stage of the boiler start-up.
Wherever they are placed for the jump ball at the biginning of the game.
300 years was how many years passed from the biiginning of the Old Kingdom to the start of its decline?
It wasn't. The Renaissance doesn't start until 1400 and the plague was through out the 1300's. So, there is at least a 100 years difference.
Babies can safely start eating solid foods at around 6 months of age.
Babies can safely start drinking water when they are around 6 months old, as recommended by healthcare professionals.
Children can safely start using adult toothpaste when they are around 6 years old, as long as they can spit it out and not swallow it.
Toddlers can safely start using a blanket around 12 to 18 months of age, when they are able to move and roll over independently.
Babies can safely start swimming lessons as early as 6 months old, but it is important to consult with a pediatrician before starting any water activities.
Babies can safely start consuming oranges around 6-8 months of age, as long as they are able to handle solid foods and have no allergies.
Babies can safely start eating oranges around 6-8 months of age, as long as they are able to handle solid foods and have no allergies.
Babies can safely start learning to swim around 6 months of age, but it is important to always supervise them closely and ensure they are in a safe environment.