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Improving Process Heating System Performance


Quiz Questions

1. The performance of a process heating system is determined by its ability to achieve a certain product quality under constraints. The efficiency of a process heating system is determined by the costs attributable to the heating system per unit produced.
True
False
2. A poor condition of refractory or insulation might reduce the furnace efficiency, thereby increasing the amount of fuel and combustion air needed to perform a given process heating task.
True
False
3. _________________________ shows a schematic of a common process heating system, as well as potential opportunities to improve the performance and the efficiency of the system.
Figure 1
Figure 2
4. Heat is generated by the combustion of solid, liquid, or gaseous fuels, and transferred either directly or indirectly to the material.
True
False
5. A furnace in which the heated materials are held in a refractory vessel for processes such as melting or calcining is termed as a ____________________________.
Blast furnace
Crucible furnace
6. _______________________are also used for calcining ores.
Kilns
Flares
7. In the ________________________ industry, calcining is used to recover lime for the kraft pulping process.
Pulp and paper
Petroleum
8. Key Performance Improvement Opportunities is represented in ________________________.
Figure 3
Figure 4
9. Oxygen enrichment is the process of supplementing combustion air with oxygen.
True
False
10. The controlled heating of a substance to promote or control a chemical reaction is termed as ___________________.
Curing
Drying
11. The chemically correct ratio of fuel to air, i.e., a mixture capable of perfect combustion, with no unused fuel or air is termed as the _________________.
Air/Fuel Ratio
Stoichiometric Ratio
12. Fireclay brick is a refractory brick manufactured substantially or entirely from fireclay.
True
False