Economic, energetic and environmental optimization of hybrid biomass gasification-based combined cooling, heating and power system based on an improved operating strategy. (1st February 2022)

• Record Type: Journal Article
• Authors: Jie, Pengfei; Zhao, Wanyue; Yan, Fuchun; Man, Xiaoxin; Liu, Chunhua
• Is Part Of: Energy. Volume 240(2022)
• Publication Date: 2022-02-01
• Subjects: Biomass gasification -- Combined cooling -- Heating and power -- Operating strategies -- Biomass raw materials; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2021.122730
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: The multi-objective optimization of the hybrid biomass gasification-based combined cooling, heating and power (BGBCCHP) system with respects to economy, energy and environment were realized. A feasibility study of adding the electric chiller (EC) and heat storage tank (HST) to the system was performed. An improved following hybrid electric-thermal load (IFHL) strategy was proposed. Three operating strategies (following thermal load (FTL), following electric load (FEL) and IFHL) and four kinds of biomass raw materials (corn straw (CS), wood pellet (WP), wheat straw (WS) and rice straw (RS)) were used in the optimization. Results show that CS is more conducive to improving economic, environmental and comprehensive performance, while WP is more conducive to improving energetic performance. The capacity of the EC of the system optimized from energetic perspective is larger than that of the system optimized from other perspectives. HST is recommended to add to the system under FEL. IFHL and FEL yield the best and worst system performance, respectively. Sensitivity analysis indicates that gasification efficiency has the greatest impact on system performance. As for the feed-in tariff policy, the equipment capacity and economic performance of the system are not affected by incentive coefficient. Highlights: A feasibility study of adding electric chiller and heat storage tank is discussed. Three operating strategies and four biomass raw materials are analyzed. The improved operating strategy yields the best performance. Gasification efficiency has the greatest impact on the system performance.