Furnace Introduction

“Fundamentals* Identify major parts of a furnace.* Identify major furnace systems.* Explain basically how a furnace produces heat. Combustion* State the requirements for combustion.* Identify three types of heat transfer. * Describe how heat transfer occurs in a furnace. Furnace Flow Paths* Define the term “”draft.””* Describe the basic operating principles of a natural draft furnace.* Explain how draft is controlled in a natural draft furnace.* Describe the basic operating principles of a forced draft furnace.* Describe the basic operating principles of a balanced draft furnace.* Explain how process fluid circulates in a furnace.* Identify problems associated with improper process fluid flow.”