Economics at your fingertips  

Investigation on the mid-temperature solar thermochemical power generation system with methanol decomposition

Zhang Bai, Qibin Liu, Jing Lei and Hongguang Jin

Applied Energy, 2018, vol. 217, issue C, 56-65

Abstract: A novel 1 MWe mid-temperature solar thermochemical power generation system is proposed to improve solar conversion efficiency in this work. The system consists of a parabolic trough solar collector, solar receiver/reactor, syngas storage tank, internal combustion engine (ICE) and heat exchange devices. The fed methanol is evaporated and flows into the solar receiver/reactor for decomposition and to produce syngas (H2 and CO), with the required reaction heat provided by the parabolic trough collector. Different from typical solar power technologies, in the proposed system, solar thermal energy is converted to syngas as chemical energy, which can be stored or utilized efficiently by an ICE for power generation. The thermodynamic performance evaluation results indicate that the annual energy efficiency and solar-to-electric efficiency reach to 33.78% and 18.29%, respectively. A small-scale pilot system with the capacity of 20 kWe is constructed, and for the first time, an industrial-scale mid-temperature thermochemical power generation is realized, which experimentally validates the effectiveness of the novel solar power technology. The research findings provide an alternative means for improving solar conversion performances.

Keywords: Solar thermochemistry; Power generation; Methanol decomposition; System evaluation (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations View citations in EconPapers (2) Track citations by RSS feed

Downloads: (external link)
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Ordering information: This journal article can be ordered from
http://www.elsevier. ... 405891/bibliographic

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Dana Niculescu ().

Page updated 2018-12-08
Handle: RePEc:eee:appene:v:217:y:2018:i:c:p:56-65