Water use efficiency evaluation method based on water use system energy analysis

Abstract

The invention discloses a water use efficiency evaluation method based on water use system energy analysis. The method comprises a step (1) of establishing a water use system energy system diagram, a step (2) of compiling a water use system energy analysis table, a step (3) of analyzing water use system energy total investment, a step (4) of analyzing water use system energy total output, a step (5) of analyzing water use system energy net output, and a step (6) of analyzing water use system unilateral hydraulic energy net output. The water use system evaluation method can achieve lateral comparison analysis of comprehensive water use efficiency of different departments, different industries and different areas, is beneficial for finding industries of low water use efficiency and analyzing reasons for low water use efficiency, and achieves comprehensive management and scheduling of water resources among different departments and different areas and optimized configuration of water resources in different industries, thereby providing the water use efficiency.

Description

technical field [0001] The invention belongs to the field of water resources management, and relates to an emergy analysis method for solving the unified evaluation of water use efficiency of comprehensive water use systems in different departments and regions, and in particular to an evaluation method of water use efficiency based on energy value analysis of water use systems. technical background [0002] Against the backdrop of increasingly prominent problems such as water resource shortages, serious water pollution, and deterioration of the water ecological environment, in February 2011, China's water resource management department issued and implemented the most stringent water resource management system, establishing the control of water resource development and utilization, and water use efficiency. The control and water functional areas limit the "three river lines" of pollution. Water use efficiency comprehensively reflects the economic development status, industria...

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Problems solved by technology

[0003] In the traditional analysis of water use efficiency, the industry generally adopts the water consumption index (m 3 / 10,000 yuan), agriculture uses the effective use coefficient of farmland irrigation water (dimensionless) or the index of irrigation water consumption per unit area (m 3 per mu), the per capita daily domestic water consumption index (L / person·day) is used for daily life, and the dimensions of water efficiency indicators are not uniform among different departments, so they are not comparable

Therefore, the traditional evaluation index of water use efficiency is not convenient for comprehensive comparison and analysis of water use efficiency among departments, so that the analysis and research of water use efficiency are limited within the department, and it is not convenient for the scientific implementation of comprehensive management of water resources among multiple departments.

Moreover, there is still a lack of evaluation indicators for regional comprehensive water use efficiency, and it is not convenient to analyze regional differences in comprehensive water use efficiency in different regions

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