垃圾焚烧电站的全寿命周期成本研究

Cost Research of MSW Incineration Power Generation Based on Life Cycle Cost Theory

针对垃圾电站评价机制尚不完善的现状,引入全寿命周期成本(LCC)理论对其进行成本分析,在考虑费用时间价值的基础上,建立了垃圾电站的LCC模型,并采用基于LCC的效能指标、借款偿还期与动态投资回收期对项目进行评价。基于所建模型,针对某2×300 T/d+1/12 MW垃圾电站,计算了以现值表示的各项费用,在设计运行工时下,其LCC为54 435万元,总收益为65 927万元,项目利润为15 477万元,效能指标为1.211,项目借款偿还期为7年,动态投资回收期为13年。此外,考虑到垃圾产量和成分随季节改变和社会发展的变化,给出了运行工时变化对垃圾电站成本管理以及各项成本和指标的影响。

For the unreasonable evaluation mechanism on municipal solid waste （MSW） incineration power plants, life cycle cost （LCC） theory is introduced to conduct cost analysis for MSW incineration power plants. Tak- ing the time value of the costs into account, a model based on LCC theory is established using three indexes to eval- uate the MSW incineration power project, including loan repayment period, dynamic investment payback period and a performance indicator. For a 2 × 300 T/d ＋ 1 × 12 MW MSW incineration power plant, all the costs indicated by present value are investigated with present model. Under designed runtime, the project＇s LCC is about 544 mil- lion Yuan, total revenue is nearly 659 million, total profit is 155 million, and LCC performance indicator is 1.211. Loan repayment period and dynamic investment payback period of the project are 7 and 13 years, respectively. Fur- thermore, considering the runtime change of MSW incineration power plant due to seasonal fluctuation and social development, the variations of cost, income items and diverse indexes are examined.