Feed-back control system for heat exchanger with natural shedding frequency
US7293605B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2002 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jul 15, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D9/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates with the feed-back control system of a heat exchanger by use of the flow resonance phenomenon which maximizes the heat transfer efficiency by generating the flow disturbances of a heat transfer medium. If a heat transfer medium is periodically stimulated at the characteristic frequency of a heat exchanger, the flow resonance frequency, which is dependent upon the flow conditions of heat transfer medium and the geometries of a heat exchanger, the disturbances of heat transfer medium is increased to the extent that heat transfer is dramatically high. This system is composed of the detecting part for the detection of flow characteristics, the processing part for the determination of flow resonance frequency, and the stimulating part which excites a heat transfer medium at the calculated flow resonance frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.