When placing a shell-and-tube heat exchanger with a removable tube bundle such as a bayonet- tube heavy fuel oil service heater into service, to prevent water hammer what statement represents the correct operating procedure?

Question

Accepted Answer

Introduce the heavy fuel oil first, then crack open the condensate drains. Gradually introduce the steam, then close the condensate drains when no longer draining condensate and issuing dry steam.

Answer

Crack open the condensate drains first. Gradually introduce the steam, then close the condensate drains when no longer draining condensate and issuing dry steam. Finally, introduce the heavy fuel oil.

Answer

Introduce the heavy fuel oil first, then crack open the condensate drains. Gradually introduce the steam, then close the condensate drains when no longer issuing dry steam and draining condensate.

Answer

Crack open the condensate drains first. Gradually introduce the steam, then close the condensate drains when no longer issuing dry steam and draining condensate. Finally, introduce the heavy fuel oil.