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Dong Y.,Shandong University | Yuan Y.,WEICHAI Power Co. | Lai Y.,Shandong University | Ma C.,Shandong University | Ma C.,Shandong Provincial Key Laboratory of Energy Carbon Reduction and Resource Utilization
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2014

The mathematical model of solar desalination of multi-stage regeneration method was built and the simulation research on the performance of this method was carried out based on Matlab. The results indicated that the optimal water to air ratio is 0.75, the optimal mass flow rate of pre-condenser to air ratio is 1.0 to 1.5, the efficiency of heat recovery was enhanced by 25% to30%, the predicted freshwater output is 7.75 kg/(m2·d), the thermal efficiency can reach 79.2%. Source


Li L.,Shandong University | Li L.,Shandong Provincial Key Laboratory of Energy Carbon Reduction and Resource Utilization | Song Z.,Shandong University | Song Z.,Shandong Provincial Key Laboratory of Energy Carbon Reduction and Resource Utilization | And 4 more authors.
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2012

In order to develop a method which can convert CH 4 and CO 2 obtained from biomass pyrolysis into syngas production, the reforming of CH 4 with CO 2 by a biomass char was conducted with microwave heating in this paper. The influences of particle diameter, microwave power, the molar ratio of CO 2 and CH 4 as well as the volumetric hourly space velocity on the CH 4 and CO 2 conversions were investigated, and the behaviors of CH 4 decomposition, the reforming of CH 4 with CO 2 and CO 2 gasification reaction were studied. The results indicate that reactant gases conversions are found to be almost unchanged when the particle diameter is below 0.83 mm. And increasing microwave power, enhancing the molar ratio of CO 2 and CH 4 or reducing the volumetric hourly space velocity result in an increase in the reactant gas conversions. In the reforming reaction, higher conversions of CH 4 and CO 2 can be obtained at the beginning, and then the CO 2 conversion is decreased slightly, together with a sustained decrease in the CH 4 conversion. Compared to the reforming reaction, more significant decrease in the CH 4 conversion is observed in the CH 4decomposition reaction. The initial CO 2 conversion in the gasification reaction is higher than that in the reforming reaction, and then it is lower than that in the reforming reaction after 60 min. The results indicate that biomass char has a good catalytic effect on the reforming of CH 4with CO 2 under microwave irradiation. Source

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