Sonic instrumentation for use in CEMS and utility boiler applications
Technical Report
·
OSTI ID:114968
- Scientific Engineering Instruments, Inc., Sparks, NV (United States)
Instrumentation based on sonic (acoustic) principles is finding wide spread use in utility boiler applications. This paper describes how acoustic systems are currently being used to measure volumetric flow rate in large ducts and stacks for Continuous Emission Monitoring System (CEMS) applications as well as for the measurement of high temperature flue gasses and boiler control. The acoustic flow monitoring system described in this paper has demonstrated its ability to meet and/or exceed the year 2000 and beyond accuracy requirements of Title IV of the Clean Air Act Amendments of 1990. Electric utility companies are actively engaged in the purchase, installation and operation of flue gas flow rate monitoring equipment even though there is still significant confusion and lack of experience in the flow rate monitoring of large ducts and stacks. This paper describes in some detail the difference between `compliance` and `allowance` which must be understood by each utility before selecting a gas flow monitoring system.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Encor-America, Inc., Mountain View, CA (United States)
- OSTI ID:
- 114968
- Report Number(s):
- EPRI-TR--104241-V4; CONF-940540--VOL.4
- Country of Publication:
- United States
- Language:
- English
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