Carbon footprint accounting method for silk reeling stage of raw silk

Patent metadata

Field	Value
Publication number	US-12518288-B2
Application number	US-202418826680-A
Country	US
Kind code	B2
Filing date	Sep 6, 2024
Priority date	Sep 23, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

The invention relates to a carbon footprint accounting method for a silk reeling stage of raw silk, including establishing a mass conservation-based mass evolution relationship between a primary product and byproducts; calculating the process duration according to the mass of the primary product in processes, and combining equipment power to calculate a theoretical annual electricity consumption; calculating a total electricity consumption for each specification of raw silk based on the running efficiency; establishing a step-by-step allocation method for electricity consumption at byproducts generation points; establishing allocation rules and ratios for other energy and material inputs; and performing carbon footprint accounting for different silk specifications according to the allocated annual electricity consumption and the other allocated inputs. The invention changes a conventional practice of simply allocating carbon footprints of final products based on economic value, and achieves precise calculation and allocation of carbon footprints during the silk reeling stage.

First claim

What is claimed is:

1 . A method for accounting a carbon footprint of a silk reeling stage of raw silk, comprising:
establishing a mass conservation-based mass evolution relationship between a primary product and byproducts in the silk reeling stage of the raw silk, the mass conservation-based mass evolution relationship comprising a cocoon drying process from fresh cocoons to dried cocoons, a cocoon peeling process from the dried cocoons to peeled dried cocoons, a cocoon sorting process from the peeled dried cocoons to reelable cocoons, and a silk reeling process from the reelable cocoons to the raw silk; calculating durations according to masses of the primary product, and calculating a theoretical annual total electricity consumption in the silk reeling stage of the raw silk in combination with power of equipment; establishing an equation to equate the theoretical annual total electricity consumption with an actual annual total electricity consumption to solve a running efficiency of the equipment, and calculating a total electricity consumption for each specification of the raw silk based on the running efficiency; allocating the total electricity consumption for each specification of the raw silk to the byproducts step by step at each byproduct generation point, to obtain annual electricity consumption for each specification of the raw silk during the silk reeling stage after allocation; establishing a byproduct allocation rule for other inputs including energy and material, and building an allocation ratio calculation model of various inputs in the silk reeling process of the raw silk; performing carbon footprint accounting of various specifications of the raw silk according to the annual electricity consumption and the byproduct allocation rule and allocation ratios of the other inputs of energy and material to obtain the carbon footprint of the silk reeling stage of raw silk; and utilizing the carbon footprint of the silk reeling stage of raw silk to implement energy-saving and emission-reduction control by adjusting operational parameters of equipment in each production process, including operating speed, processing capacity, and running efficiency of each machine, to optimize energy efficiency and reduce carbon emissions, and by adjusting production process parameters including mass loss fraction in each cocoon processing process, frison fraction, pupa shell fraction, and pupa fraction to alter byproduct carbon footprint allocation ratios, thereby achieving low-carbon production control and process optimization in the cocoon drying process, the cocoon peeling process, the cocoon sorting process, and the silk reeling process.

2 . The method according to claim 1 , wherein calculating durations according to masses of the primary product comprises:
performing calculation according to total amounts of the primary product during the processes and production capacities of the processes, or performing calculation directly according to a total number of workdays based on output proportions of different specifications.

3 . The method according to claim 1 , wherein a calculation formula for solving the running efficiency of the equipment is as follows:

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Assignees

• Univ Soochow

Inventors

• Xu Jianmei
• Bian Xinger
• Hu Yifeng
• Dai Jiayang

Classifications

• G06Q10/06

  Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling · CPC title

• Y02P90/30

  Computing systems specially adapted for manufacturing · CPC title

• G06Q50/06

  Energy or water supply · CPC title

• G06Q50/04

  Manufacturing · CPC title

• G06Q30/018 Primary

  Certifying business or products · CPC title