Title: DEVELOPMENTOFALL-SOLID-STATESENSORSFORMEASUREMENT OFNITRICOXIDEANDAMMONIACONCENTRATIONSBYOPTICALABSORPTION INPARTICLE-LADENCOMBUSTIONEXHAUSTSTREAMS

University Coal Research/Historically Black Colleges and Universities & Other Minority Institutions Contractor Review Mtg.

Author(s):

Others  :  http://www.netl.doe.gov/publications/proceedings/03/ucr-hbcu/abstracts/Lucht_a.pdf
PID  :  6114

来源: CEUR

【 摘 要 】

An all-solid-state continuous-wave (cw) laser system for ultraviolet absorption measurementsof the nitric oxide (NO) molecule has been developed and demonstrated.For the NO sensor, 250nW of tunable cw ultraviolet radiation is produced by sum-frequency-mixing of 532-nm radiationfrom a diode-pumped Nd:YAG laser and tunable 395-nm radiation from an external cavity diodelaser (ECDL).The sum-frequency-mixing process occurs in a beta-barium borate (BBO) crystal. The nitric oxide absorption measurements are performed by tuning the ECDL and scanning the sum- frequency-mixed radiation over strong nitric oxide absorption lines near 226 nm.The demonstrateddetection limit for the system is less than 1 ppm of NO for a 1-meter absorption path length. Measurements will be performed in the exhaust of a co-fired combustion facility.Theconventional co-fired boiler burner facility is a 30 kW (100,000 Btu/hr) downward-fired furnace