GB29447-2022

The norm of energy consumption per unit products of polysilicon and germanium

多晶硅和锗单位产品能源消耗限额

GB 29447-2022 é uma norma nacional chinesa obrigatória vigente: The norm of energy consumption per unit products of polysilicon and germanium. Setor: Construção. Foco: Eficiência energética. Entrada em vigor: 1 de jan. de 2024.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to the energy consumption calculation and assessment for enterprises producing photovoltaic-grade polysilicon via trichlorosilane hydrogen reduction, as well as those producing high-purity germanium tetrachloride, germanium dioxide, zone-refined germanium ingots, and germanium single crystals. It is not applicable to electronic-grade polysilicon or polysilicon produced via the silane fluidized bed method. It also governs energy control for new, reconstructed, and expanded projects.

Requisitos técnicos

The standard classifies the energy consumption limits for polysilicon and germanium products into three tiers, where Tier 1 represents the lowest energy consumption. Existing manufacturing facilities must comply with the Tier 3 limit values. For new, reconstructed, or expanded projects, the stricter Tier 2 limit values are mandated as the market access threshold. The standard also details the statistical boundaries, covering the entire production process from raw material input to finished product warehousing, including main, auxiliary, and affiliated production systems.

Métodos de ensaio

The standard outlines specific calculation formulas for the comprehensive energy consumption per unit product, measured in kilograms of standard coal equivalent (kgce). It includes provisions for adjusting energy consumption values when there are missing processes or external purchases/sales of raw materials and intermediate products. Reference coefficients for converting various energy sources and energy-consuming working fluids to standard coal are provided in the appendix, aligning with the principles of GB/T 2589.

Perguntas frequentes

What products are regulated under GB 29447-2022?

It regulates photovoltaic-grade polysilicon and various germanium products including high-purity germanium tetrachloride, germanium dioxide, zone-refined germanium ingots, and germanium single crystals.

What are the differences between existing and new facilities?

Existing facilities must meet the Tier 3 energy consumption limits, while new, reconstructed, or expanded projects must meet the stricter Tier 2 limits.

Does GB 29447-2022 apply to electronic-grade polysilicon?

No, the standard explicitly excludes electronic-grade polysilicon and polysilicon produced via the silane fluidized bed method.

The summary above provides a high-level overview of GB 29447-2022. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 29447-2022 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Gestão
CCS: F01
ICS: 27.010
Órgão competente: Standardization Administration of China
Comitê técnico: National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China

Relações

Substitui:GB 29447-2012, GB 29413-2012