Evaluation on energy-saving and carbon-reduction potential of aluminum processing in high-energy-consuming enterprises and their profiles

doi:10.3969/j.issn.2097-0706.2024.08.001

Abstract

Abstract:

To realize the sustainable development of high-energy-consuming enterprises， and promote carbon emission reduction and energy efficiency， an energy-saving and carbon-reduction evaluation index system for aluminum processing is established. The system takes energy efficiency， carbon emission and environment indicators into considerations， so as to ensure the comprehensiveness and accuracy of the evaluation. The analytic hierarchy process is used to evaluate the efficiency， carbon emission level and environmental impact of each processing section in aluminum processing. In a case study， the energy-saving and carbon-reduction potential of each processing section was evaluated， and the sensitivity analysis on the energy-saving and carbon-reduction evaluation index system was carried out to ensure the universality of the established index system. The results show that aluminum processing enterprises can improve their energy-saving and carbon-reduction capabilities from updating the casting process. Based on user profiling， optimizing suggestions for production process are proposed to reduce energy consumption and environmental pollutants，achieving sustainable development goals.

Key words: high-energy-consuming enterprise, aluminum processing, energy saving and carbon reduction potential, analytic hierarchy process, user profile

CLC Number:

TK09

LUO Yuling, PENG Daogang, ZHAO Huirong, QU Bogang. Evaluation on energy-saving and carbon-reduction potential of aluminum processing in high-energy-consuming enterprises and their profiles[J]. Integrated Intelligent Energy, 2024, 46(8): 1-11.

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标度量化	含义
1	a指标与b指标一样重要
3	a指标比b指标略微重要
5	a指标比b指标明显重要
7	a指标比b指标重要很多
9	a指标比b指标重要特别多
2,4,6,8	处于2个重要程度之间

一级指标	二级指标	三级指标	指标类型
能效指标	能源消耗量	电力消耗总量	定量计算
		水消耗总量	定量计算
		天然气消耗总量	定量计算
		柴油消耗总量	定量计算
		汽油消耗总量	定量计算
		氮气消耗总量	定量计算
	单位能耗	单位产量能耗	定量计算
	单位能耗	单位工时能耗	定量计算
	能源利用率	设备利用率	定量计算
	能源利用率	热能回收利用率	定量计算
	能源结构	可再生能源占比	定量计算
碳排放指标	碳排放总量	直接碳排放总量	定量计算
	碳排放总量	间接碳排放总量	定量计算
	单位碳排放量	单位产量碳排放量	定量计算
	单位碳排放量	单位工时碳排放量	定量计算
	减排潜力	能效改进潜力	定性打分
	减排技术	节能设备使用程度	定量计算
	减排技术	低碳技术占比	定量计算
环境指标	废水排放率	生产废水排放率	定量计算
	废气排放率	氮氧化物排放率	定量计算
	废气排放率	颗粒物排放率	定量计算
	固体废弃物产生率	废渣产生率	定量计算
	固体废弃物产生率	废品产生率	定量计算
	环境影响评估	噪音影响程度	定性打分
	环境影响评估	气味影响程度	定性打分

项目	折算系数
电力/[kg·(kW·h)^-1]	0.122 9
水/(kg·t^-1)	0.257 1
天然气/(kg·m^-³)	1.100 0
汽油/(kg·kg^-1)	1.428 6
柴油/(kg·kg^-1)	1.457 1
氮气/(kg·t^-1)	0.400 0

能源种类	低位发热量/ (kJ·m^-3)	单位热值含碳量/ ( kg·kJ^-1)	燃料碳氧化率/%
天然气	38 931	15.3×10^-5	0.99
汽油	43 070	18.9×10^-5	0.98
柴油	42 652	20.2×10^-5	0.98

矩阵序号	阶数 n	权重向量	最大特征值	C_I	R_I	C_R
1	3	（0.283,0.643,0.074）^T	3.065	0.032	0.525	0.062
2	4	（0.534,0.309,0.049,0.108）^T	4.194	0.065	0.882	0.073
3	6	（0.435,0.027,0.286,0.153,0.060,0.039）^T	6.443	0.089	1.250	0.071
4	2	（0.833，0.167）^T	2.000	0	0	0
5	2	（0.125，0.875）^T	2.000	0	0	0
6	1	（1.000）^T	1.000	0	0	0
7	4	（0.576,0.291,0.081,0.052）^T	4.202	0.067	0.882	0.076
8	2	（0.250,0.750）^T	2.000	0	0	0
9	2	（0.833,0.167）^T	2.000	0	0	0
10	1	（1.000）^T	1.000	0	0	0
11	2	（0.500,0.500）^T	2.000	0	0	0
12	4	（0.205,0.637,0.113,0.045）^T	4.235	0.078	0.882	0.089
13	1	（1.000）^T	1.000	0	0	0
14	2	（0.875,0.125）^T	2.000	0	0	0
15	2	（0.500,0.500）^T	2.000	0	0	0
16	2	（0.500,0.500）^T	2.000	0	0	0