A full life cycle performance evaluation method of a distributed alkaline electrolytic water hydrogen production system

By establishing a process flow model for an alkaline water electrolysis hydrogen production system using Aspen Plus software, and combining it with techno-economic, carbon footprint, and efficiency analysis models, the system addresses the issues of weak data foundation and fragmented evaluation dimensions in existing assessment methods. This enables full life-cycle performance evaluation of distributed alkaline water electrolysis hydrogen production systems, improving the accuracy of assessment results and system optimization capabilities.

CN122453202APending Publication Date: 2026-07-24常州常供电力设计院有限公司
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Patent Information

Application Number
CN202610546344.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing evaluation methods for alkaline water electrolysis hydrogen production systems suffer from weak data foundations, fragmented evaluation dimensions, and an inability to systematically identify key optimization aspects, making it difficult to achieve comprehensive decision-making and optimized design.

Method used

A process flow model of an alkaline water electrolysis hydrogen production system was established using Aspen Plus software. Combined with techno-economic, carbon footprint assessment, and efficiency analysis models, a full life cycle performance evaluation was conducted. Material flow and energy flow data were obtained through process simulation, and the levelized cost of hydrogen production, carbon emissions per unit of hydrogen, and system efficiency were calculated.

Benefits of technology

It ensures the accuracy and reliability of system evaluation results, identifies the electrolyzer as the main source of system loss, provides technical basis for improving system energy efficiency and optimizing structure, and has good scalability and adaptability to different scenarios.

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Abstract

The application discloses a kind of distributed alkaline electrolytic water hydrogen production system's whole life cycle performance evaluation method, comprising the following steps: S1, with Aspen Plus software, the process flow model of alkaline electrolytic water hydrogen production system is established, the steady-state process simulation is carried out to system, obtains material flow and energy flow data in the system running process;S2, based on material flow and energy flow data, construct the whole life cycle comprehensive evaluation model of alkaline electrolytic water hydrogen production system;S3, based on comprehensive evaluation model, system carries out comprehensive performance evaluation, and further analyzes the influence of key parameters on the comprehensive performance of system.The method of the application adopts Aspen Plus software to establish the process flow model of distributed alkaline electrolytic water hydrogen production system, and the material and energy data obtained by process simulation are directly used as the input of technical and economic evaluation, carbon footprint accounting and analysis model, realizing data homology and model collaboration from micro-reaction mechanism to macro-system performance, and improving the accuracy and reliability of system evaluation results.
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