4. MATERIALAND ENERGY BALANCE

79 Bureau of ENERGY Efficiency4. MATERIAL AND ENERGY BALANCES yllabusMaterial and ENERGY BALANCE :Facility as an ENERGY system, Methods for preparingprocess flow, Material and ENERGY BALANCE quantities, as they pass through processing operations, can be described by materialbalances. Such balances are statements on the conservation of mass. Similarly, ENERGY quanti-ties can be described by ENERGY balances, which are statements on the conservation of there is no accumulation, what goes into a process must come out. This is true for batch oper-ation. It is equally true for continuous operation over any chosen time and ENERGY balances are very important in an industry. Material balances are fun-damental to the control of processing, particularly in the control of yields of the products. Thefirst material balances are determined in the exploratory stages of a new process, improved dur-ing pilot plant experiments when the process is being planned and tested, checked out when theplant is commissioned and then refined and maintained as a control instrument as productioncontinues.

calculation. This diagram represents visually various outputs and losses so that energy managers can focus on find-ing improvements in a prioritized man-ner. Example: The Figure 4.2 shows a Sankey diagram for a reheating furnace. From the Figure 4.2, it is clear that exhaust flue gas losses are a key area for priority attention.

Loading..

Tags:

  Balance, Energy, Calculation, Fuel, Flue gas, Materialand energy balance, Materialand

Information