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Process Data set: Wafer slicing ; Multi-Si wafer ; Ingot breaker is used to slice the ingot (en) en zh

Key Data Set Information
Location CN
Geographical representativeness description Environmental effects of China's solar photovoltaic industry during2011e2016: A life cycle assessment approach
Reference year 2017
Name
Wafer slicing ; Multi-Si wafer ; Ingot breaker is used to slice the ingot
Use advice for data set When utilizing the life cycle inventory (LCI) data for the described process, users should ensure that they are applying this information within the context of photovoltaic module production, specifically for multi-crystalline silicon PV cells from 2011 to 2016 in China. It is important to account for technological changes over the time period and to consider geographical specificity when interpreting results. Careful attention should also be given to the boundaries of the study, ensuring that recycling processes, where applicable, are included, and that use-phase behavior of the PV systems, including energy output and degradation rates, is accurately modeled based on the available literature.
Technical purpose of product or process The described industrial process involves slicing ingots of multi-crystalline silicon (multi-Si) to produce wafers for photovoltaic (PV) modules. Each PV module is part of a larger solar energy system, with a focus on a 1 kWp system that incorporates five individual 200 W modules, each composed of 54 multi-Si cells. These cells have dimensions of 156 x 156 mm2 and possess an efficiency of 16%. The process is therefore crucial for the manufacturing of PV panels, which are used in the solar power industry to capture and convert solar energy into electricity.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other materials
General comment on data set Multi-Si
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Functional Unit In this paper, a 1 kWp solar PV system consisting of five 200 Wmodules made of 54 multi-Si cells, each with a size of 156*156 mm2 and 16% efficiency, was used as the primary study object
Time representativeness
Time representativeness description Available online
Technological representativeness
Technology description including background system Ingot breaker is used to slice the ingot
Flow diagram(s) or picture(s)
  • WVsFbvbstoAQ0Bxrb4KcnEX7nCf.png Image
LCI method and allocation
Type of data set Unit process, single operation
LCI Method Principle Attributional
Deviation from LCI method principle / explanations None
Deviations from LCI method approaches / explanations Building on the existing literature on LCA of China's solar PVsystem (Fu et al., 2015; He, 2013; Hong et al., 2016; Li and Yu, 2014; Li and Chang, 2012; Liang, 2012; Yang et al., 2015; Yu et al., 2017; Xie et al., 2015), the LCI is obtained for this study.
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Data selection and combination principles Building on the existing literature on LCA of China's solar PVsystem (Fu et al., 2015; He, 2013; Hong et al., 2016; Li and Yu, 2014; Li and Chang, 2012; Liang, 2012; Yang et al., 2015; Yu et al., 2017; Xie et al., 2015), the LCI is obtained for this study.
Deviation from data selection and combination principles / explanations None
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Completeness
Completeness of product model No statement
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2023-12-27T15:36:49+08:00
Publication and ownership
UUID a1bfce6d-3ae0-44d7-9910-511da0a53821
Date of last revision 2024-04-20T14:58:20.603988+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=a1bfce6d-3ae0-44d7-9910-511da0a53821&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Materials production / Raw materials 5.6014 kg5.6014 kg
General comment Multi-Si ingot (Multi-Si wafer)
0.1799 0.1799
General comment Silicon carbide (Multi-Si wafer)
Product flow
Materials production / Metals and semimetals 17.7336 kg17.7336 kg
General comment Steel wire
Product flow
Energy carriers and technologies / Electricity 24.626160000000002 MJ24.626160000000002 MJ
General comment Electricity (Multi-Si wafer)
Product flow
Materials production / Other materials 2.2837 kg2.2837 kg
General comment Detergent (Multi-Si wafer)

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Materials production / Raw materials 3.4203 kg3.4203 kg
General comment Multi-Si wafer (Multi-Si wafer)