以常规的等离子体热解气化城市生活垃圾发电项目为基础项目,在考虑碳排放交易的情况下,使用净现值法,建立该项目的垃圾处理价格计算模型,并对CDM(清洁发展机制)项目的投资运行成本和碳减排放量进行估算。研究结果得出:该项目收支平衡时...以常规的等离子体热解气化城市生活垃圾发电项目为基础项目,在考虑碳排放交易的情况下,使用净现值法,建立该项目的垃圾处理价格计算模型,并对CDM(清洁发展机制)项目的投资运行成本和碳减排放量进行估算。研究结果得出:该项目收支平衡时,垃圾处理价格为204.9元/t;年碳减排量为9 386.1 t CO_2;对投资决策评价指标分析可得,该项目具有一定的经济可行性。展开更多
Abstract: An effective approach was conducted for estimating fracture toughness using the crack opening displacement (COD) method for plasma enhanced chemical vapor deposition (PECVD) coating materials. For this ...Abstract: An effective approach was conducted for estimating fracture toughness using the crack opening displacement (COD) method for plasma enhanced chemical vapor deposition (PECVD) coating materials. For this evaluation, an elastoplastic analysis was used to estimate critical COD values for single edge notched bending (SENB) specimens. The relationship between fracture toughness (Kic) and critical COD for SENB specimens was obtained. Microstructure of the interface between AleO3-TiO2 composite ceramic coatings and AISI 1045 steel substrates was studied by using scanning electron microscope (SEM). Chemical compositions were clarified by energy-dispersive X-ray spectroscopy (EDS). The results show that the interface between of Al203-TiO2 and substrate has mechanical combining. The nanohardness of the coatings can reach 1 200 GPa examined by nanoindentation. The Klc was calculated according to this relationship from critical COD. The bending process produces a significant relationship of COD independent of the axial force applied. Fractographic analysis was conducted to determine the crack length. From the physical analysis of nanoindentation curves, the elastic modulus of 1045/AI2O3-TiO2 is 180 GPa for the 50 μm film. The highest value of fracture toughness for 1045/A1203-TiO2-250 μm is 348 MPa·mv2.展开更多
文摘以常规的等离子体热解气化城市生活垃圾发电项目为基础项目,在考虑碳排放交易的情况下,使用净现值法,建立该项目的垃圾处理价格计算模型,并对CDM(清洁发展机制)项目的投资运行成本和碳减排放量进行估算。研究结果得出:该项目收支平衡时,垃圾处理价格为204.9元/t;年碳减排量为9 386.1 t CO_2;对投资决策评价指标分析可得,该项目具有一定的经济可行性。
基金Project supported by the National Research Foundation of Korea(2011-0030804)the Korea Research Foundation(KRF2009-0076450)funded by the Korea Government(MEST)
文摘Abstract: An effective approach was conducted for estimating fracture toughness using the crack opening displacement (COD) method for plasma enhanced chemical vapor deposition (PECVD) coating materials. For this evaluation, an elastoplastic analysis was used to estimate critical COD values for single edge notched bending (SENB) specimens. The relationship between fracture toughness (Kic) and critical COD for SENB specimens was obtained. Microstructure of the interface between AleO3-TiO2 composite ceramic coatings and AISI 1045 steel substrates was studied by using scanning electron microscope (SEM). Chemical compositions were clarified by energy-dispersive X-ray spectroscopy (EDS). The results show that the interface between of Al203-TiO2 and substrate has mechanical combining. The nanohardness of the coatings can reach 1 200 GPa examined by nanoindentation. The Klc was calculated according to this relationship from critical COD. The bending process produces a significant relationship of COD independent of the axial force applied. Fractographic analysis was conducted to determine the crack length. From the physical analysis of nanoindentation curves, the elastic modulus of 1045/AI2O3-TiO2 is 180 GPa for the 50 μm film. The highest value of fracture toughness for 1045/A1203-TiO2-250 μm is 348 MPa·mv2.