Development of a gravel bed combustor for a solid fueled gas turbine for the period February 1, 1989 to June 30, 1991
Further work on a novel pressurized, downdraft combustor using aspen woodchips is reported for the period 2/89 to 6/91. The 42 cm i.d combustor was connected to a modified Allison 250-C20B gas turbine engine and operated for 250 hours. The performance of the combustor-turbine system is discussed. Deposits of ash on the turbine nozzles and rotors are identified and discussed. A dynamic simulation model for the combustor-turbine system is presented and used to investigate the control of the system. The highest net power output was 61 kW or 20% of full power; the highest turbine speed was 75% of the maximum speed; the highest mass flow was 50% of the full power flow. The stability of the combustor must be improved before higher output and longer runs can be achieved.
- Research Organization:
- Wisconsin Univ., Madison, WI (United States). Dept. of Mechanical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-85CE40735
- OSTI ID:
- 41336
- Report Number(s):
- DOE/CE/40735-2; ON: DE95009677; TRN: AHC29512%%74
- Resource Relation:
- Other Information: PBD: Jun 1992
- Country of Publication:
- United States
- Language:
- English
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