Techno Economic Evaluation of Biogas Integrated Parabolic Trough Solar Energy Combined Cycle

Abstract:

This paper presented a biogas-solar hybrid system and investigated the feasibility of using biogas to increase the enthalpy of parabolic trough collectors steam so as to increase the cycle efficiency and power production. High temperature anaerobic digestion (AD) was adopted to produce biogas by using corn straw, manure and sewage. Biogas fraction and energy-to-electricity efficiency were used to evaluate the biogas contribution to the electricity generation and the energy utilization efficiency based on off-design performance analysis respectively. A comprehensive levelized electricity cost (LEC) and life cycle assessment (LCA) for the hybrid system power production were performed. The simulation calculation results show that biogas utilization plays an important role in the decrease in systemic LEC and greenhouse gas emissions. Improvement is achieved in both of generation cost and greenhouse emissions for biogas-solar hybrid plant compared to solar-only plant.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 22-31
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.22
• Online since: December 2013
• Authors: Bo Zhao, Shan Rang Yang*, Yu Ming Ding, Zhi Chao Liu, Ya Cai Hu
• Keywords: Anaerobic Digestion, Biogas Fraction, Biogas-Solar Hybrid System, Energy-To-Electricity Efficiency, Levelized Electricity Cost, Life Cycle Assessment

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