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Available online at www.sdencedirect com <br /> 60111"04DI MILT• <br /> ELSETM Energy 30(2003)2206-2218 <br /> �vww.dteviar.ewnAxt�/er�y <br /> Research and development of a low-BTU gas-driven engine <br /> for waste gasification and power generation <br /> Y. Ando"'*, K, YoshikaWe, M. Becks, H. Endob <br /> aJ`DWbOMIMal Science and Twhwkgy.Tat w if"Ads of TcdMIlogy Nagataeeda 4259, <br /> MA"-* YobMOM.226.8502 J <br /> qm <br /> `lalrxttbIAl x <br /> nM'hrdrestries.5-717-1,Ftutalwrf-inaclu,NagMakt 851-0392,Japan <br /> Abstract <br /> Combustion characteristics of low BTU gases.(about 1000 kW N ms) we m experiawntally investigated in <br /> order to develop ongm geaeraton for waste gasification and power generation systems.Two simh ted low-BTU <br /> gases. obtained from one-step high temperatures gasification (hydrogen rich) and two-step pyrolysish- aaWng <br /> gasification(methane rich),as well as natural gas.were oeated in a small-scale sparse ignition engine.Compared to <br /> the natural gas driven engine,the hydrogen rich low-BTU gas driven engine showed similar thermal efficiency but <br /> With sig fimtly lower NO.and hydrocarbon pions and wider equivalence ratio range far stable engine <br /> operation.On the other hand.the methane rich low-BTU gas engine showed narrower equivalence ratio range for <br /> stable operation.The test results show engine performance mere depends <br /> fire heating value of the fires on cambttstion characteristics than an <br /> Sm.For better engine performance,hydrogen rich fuel gas is desirable. <br /> ©2004 Published by Elsevier Ltd. <br /> I.Lttroductien <br /> In order to decrease our reliance On fossil-fueled power systems,many kinds of solid fuels including <br /> wastes and biomass gasification systemns are currently under development.Heating values of the gaseous <br /> fuels produced from these gasification systems can be as low as 1110th of that of natural gas,so there are <br /> no established energy conversion methods for such low-BTU gases.Gas engines are being considered as <br /> one of the prime candidates use for power generation from low-BTU gases. With high thermal ; <br /> efficiency, high reliability and low-cost, engines are excellent energy conversion devices. 1; <br /> 'CaRtsponding authar.Ted.: +8145 924 5507;fax; +8145 924 5518. <br /> E-mail addne+w. yandooldepatite ctL&c jp(Y.Ando).yowl Wt#depe.dtech.W jp(K.Yoshikawa). <br /> 0360-5"21$-tee:tmM sp=a 0 2004 POW"d by t wvW t.td. <br /> doi.10.10166-towe.200448.024 <br />