Wanneng Dai

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Interchangeabilities of biogas (BG) and liquefied petroleum gas (LPG) mixed gases according to American Gas Association (AGA) Bulletin 36 and Weaver indices were investigated. BG-LPG mixed fuels were defined so as to have a Wobbe index (WI) nearly equivalent to those of natural gas (NG). The qualities of BG and LPG used are considered by varying the(More)
Biogas interchangeability was proposed in view of the variation in component contents of biogas and investigated theoretically and experimentally. It was found that all predictions of “C” index, “I” indices and Weaver indices have very similar interchangeability limits, but the reliability requires further study. Calculated and(More)
A quasi-dimensional spark ignition (SI) engine cycle model is used to predict the combustion and exhaust emissions of a gas engine driven generator for the cases of using biogas and liquefied petroleum gas (LPG)-biogas blends. Two different thermodynamic regions consisting of unburned gases and burned gases that are separated by the flame front are(More)
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