Process heater control
US4574746A · kind A · utility
17Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Nov 14, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2235/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for controlling a process heater in which a required heat demand is computed based on the enthalpy of the feed stock and the desired enthalpy of the final product, and then used as a feedforward portion of the fuel control. A second embodiment of the invention is based on the assumption that the feed stock enthalpy changes slowly or infrequently. In this embodiment fuel heating value changes are used as a feedforward portion of the fuel control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.