Thermodynamics evaluation of a solar-biomass power generation system integrated a two-stage gasifier

被引：14
|
作者：
Bai, Zhang [1 ,2 ]
Liu, Qibin [1 ]
Hong, Hui [1 ]
Jin, Hongguang [1 ]
机构：
[1] Chinese Acad Sci, Inst Engn Thermophys, 11 North Fourth Ring Rd, Beijing 100190, Peoples R China
[2] Uinvers Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
来源：
CUE 2015 - APPLIED ENERGY SYMPOSIUM AND SUMMIT 2015: LOW CARBON CITIES AND URBAN ENERGY SYSTEMS | 2016年 / 88卷
关键词：
solar energy; power generation; two-stage gasifier; hybrid; GASIFICATION;
D O I：
10.1016/j.egypro.2016.06.134
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A new solar-biomass power generation system that integrates a two-stage gasifier is proposed in this work, in which two types of solar collectors are used to provide solar thermal energy with different levels for driving the biomass pyrolysis (about 643K) and gasification (about 1150K), respectively. The qualified syngas produced is fed into the combined cycle system for power generation. The thermodynamic performances of the proposed system are improved with the overall energy efficiency of 26.72% and the net solar-to-electric efficiency of 15.93%. The exergy loss during the solar collection and gasification is reduced by 19.3% compared with the scheme of using one-stage gasifier. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：368 / 374
页数：7
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