关键词: 经济学, 环境成本, 单位 成本, 单位 经济学成本, 联供联产系统

Abstract: A new matrix model based on exergoeconomic analysis method was presented in this paper. The model could overcome the traditional exergoeconomic analysis lacking description of the environmental costs. This proposed method can also track the product cost formation process in the full process life cycle，it is a useful exploration to reveal the true cost of the system products. To meet the requirements for the full rank of the matrix，a new principle to construct the supplement equation was developed to consider the environmental emission streams. The proposed method was illustrated by means of a co-feed and co-production system example. Detailed exergoeconomic analysis matrix models were established. The results revealed the formation process for the unit exergetic cost and unit exergoeconomic cost within the system，as well as their variation. Both the unit exergy cost and the unit exergoeconomic cost increased gradually according to the production processes.

Key words: exergoeconomic analysis, environmental costs, unit exergetic cost, unit exergoeconomic cost, co-feed and co-production system