TECHNO-ECONOMIC ANALYSIS AND BUSINESS FEASIBILITY STUDY TO PORTABLE POLYGENERATION SYSTEM FOR CONSTRUCTION INDUSTRY

Sammanfattning: Polygeneration technology is to utilize a single plant to offer multiple energy products, and the multiple processes are integrated into one system. In comparison with the single-product technology, polygeneration improves the system efficiency significantly since it has multiple outputs, and reduces the relevant capital and production cost accordingly. In this thesis, a polygeneration system was designed specifically for a project in construction industry and the business feasibility of the system was analyzed. The status quo and problems of present temporary power system were introduced and the idea of using polygeneration system as the substitute was described. A substation project in Al Kharj, Saudi Arabia was utilized as the reference to design the polygeneration system and to analyze the system’s technical and business feasibility. After the study of energy demand, 12 scenarios were proposed based on the available energy sources and commercialized technologies in the market. RETScreen 4 software was used to simulate proposed scenarios and relevant techno economic discussion and analysis of the results were made. Based on “RETScreen 4” software’s simulation results, one optimized scenario was selected for the polygeneration system design and business feasibility analysis. A polygeneration system with two polygeneration sets were designed to meet energy demand of the reference project in this thesis. Considered the technical and economic information of the designed system, a business feasibility analysis of the polygeneration system for the construction industry was studied. As the last part of the thesis, a summary of business plan was made to the designed system based on the results of market research and business feasibility study.