Targeting for furnace systems using pinch analysis

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00036a037· OSTI ID:6613642

Hall, S G; Linnhoff, B ^[1]

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1. Univ. of Manchester Inst. of Science and Technology, Manchester (United Kingdom). Dept. of Process Integration

Pinch analysis has emerged as a powerful methodology to guide engineers in the design of process heat and power systems. An important feature of pinch analysis is its ability to set performance targets for utility consumption for any given process prior to detailed design. However, due to certain limitations in the established concepts, targeting is generally limited to the simpler utility systems such as multiple steam levels or a combination of flue gas and steam. Several new concepts are introduced for the representation of more complex utility and process systems, the most important of which is called the balanced grand composite curves. These concepts enhance the user's understanding of the thermal interactions between a utility system and its associated process, through the use of separate process and utility grand composite curves. They also greatly simplify mixed utility targeting. In the particular case where a furnace with air preheat is used to heat a process, they lead to the development of a simple noniterative procedure to target those furnace operating conditions corresponding to minimum fuel firing. The procedure can also be extended to target more complex multiple utility systems.

• OSTI ID: 6613642
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 33:12; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CALCULATION METHODS
EFFICIENCY
ENERGY
ENERGY MANAGEMENT
FURNACES
HEAT
INDUSTRIAL PLANTS
MANAGEMENT
MATHEMATICAL MODELS
PROCESS HEAT
THERMAL EFFICIENCY
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION