000			03414nas|a2200397 i 4500
005			20260818155903.0
008			020303s2001 th u m rtt 00| a1eng d
035			_a.b11848327
099		9	_aAIT Thesis no. ET-01-24
100	1		_aWickramasinghe, T. A.
245	1	2	_aA multi-stage gasifier engine system
260			_aBangkok : _bAsian Institute of Technology, _c2001
300			_a88 leaves
490	1		_aThesis ; _vno. ET-01-24
500			_aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Enviro1m1ent, Resources and Development
502			_aThesis (M.Eng.) - Asian Institute of Technology, 2001
520			_aThe main objective of this study was development of a Multi-Stage Gasifier Unit, using pre-heated air for engine applications. A cross-flow gas-to-gas plate heat exchanger to preheat the air supplied to the gasifier by recovering heat from the exhaust of a diesel engine was designed, fabricated and tested. A two-stage gasifier was fabricated; primarily it was tested with different air supply rates, with and without preheating of air to find the temperature profile in the gasifier and the quality of producer gas. Next, the gasifier was coupled with a diesel engine. The producer gas was cleaned and cooled using a cyclone and a spray tower. The diesel engine was tested on a dual fuel mode using producer gas and diesel as well as on diesel alone mode. Dried wood and coconut shell were used separately to fuel the gasifier. The two-stage gasifier developed two high temperature zones inside it. It normally experienced occasional blockage of fuel, when air was supplied through two ports only. This was successfully prevented by addition of a part of primary air from the top of the gasifer. An introduction of 50 % primary air from the top showed better results by creating a more uniform high temperature zone favorable for producing of higher quality gas and cracking tar. A Perkins diesel engine of three cylinders was operated at a constant speed of 1500 rpm, on diesel fuel alone and on dual-fuel. A maximum value of 71 % of energy supply by producer gas was achieved for a load of 2.6 kW and gasifier air supply rate of 250 lit/min in the tested range of electrical power 0 - 10 kWe.
650		0	_aBiomas gasification
650		0	_aDiesel motor _xFuel systems
700	1		_aBhattacharya, Sribas C., _eChairperson
700	1		_aPham, H.L., _eExamination Committee
810	2		_aAsian Institute of Technology. _tThesis ; _vno. ET-01-24
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B08145
907			_a.b11848327 _bmnait _cu
902			_a240329
998			_b0 _c020303 _dm _ea _fu _g2
945			_lmnait
945			_lmnait
945			_lmnarc
942			_c20
942			_c40
909			_aBarcode : 30050120749329 _bCREATED : 2000-04-10 _cRECORD # : i12273168 _dLPATRON : 1022251 _eLCHKIN : 2010-04-28 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 15 _jTOT RENEW : 18
909			_aBarcode : 30050120749337 _bCREATED : 1999-07-05 _cRECORD # : i1227317x _dLPATRON : 1019403 _eLCHKIN : 2007-04-11 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 7 _jTOT RENEW : 14
909			_aBarcode : 30050160047246 _bCREATED : 2016-06-06 _cRECORD # : i13018474 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c78958 _d78958