Volume 10: Sustainable Energy Solutions for Changing the World: Part II

Integration of Parabolic Trough Collector and Steam Dryer in Cogeneration System of Sugar Industry Somchart Chantasiriwan

Abstract

Cogeneration system in the cane sugar industry consists of boiler, steam turbine, and evaporation process. Bagasse is used as fuel in boiler. Bagasse has a high moisture content, which leads to the inefficiency of energy conversion. The integration of steam dryer in cogeneration system to reduce bagasse moisture con-tent will improve the system performance. The use of parabolic trough collector to generate additional steam for steam dryer will enhance the capacity of steam dryer. In the paper, the cogeneration system integrated with steam dyer and parabolic trough collector is proposed. Simulation results from models of cogeneration system, boiler, steam dryer, and parabolic trough collector show that this system is capable of generating more power output than the cogeneration system without steam dyer and parabolic trough collector that consumes the same amount of fuel. The estimation of the payback period for the investment in steam dyer and parabolic trough collector is also provided.

Keywords Cogeneration, Renewable energy, Biomass drying, Solar-aided power generation