GB29448-2022
The norm of energy consumption per unit production of sponge titanium and titanium ingot
海绵钛和钛锭单位产品能源消耗限额
GB 29448-2022 is a current mandatory Chinese national standard for The norm of energy consumption per unit production of sponge titanium and titanium ingot. It appears in the Construction compliance cluster with a energy efficiency focus and has an implementation date of Jan 1, 2024.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the calculation, assessment, and energy consumption control for enterprises producing sponge titanium via the magnesium reduction-distillation method and titanium ingots via vacuum consumable electric arc furnaces. It is specifically designed for existing facilities, as well as new, reconstructed, and expanded projects. This standard is mandatory for all relevant manufacturers entering the Chinese market. It explicitly excludes facilities producing sponge titanium via electrolysis or titanium ingots via cold bed furnaces.
Technical requirements
GB 29448-2022 establishes a three-tier energy consumption limit grading system for both sponge titanium and titanium ingots, where Tier 1 represents the lowest energy consumption. For sponge titanium, the standard differentiates between full-process production and semi-process production, setting specific comprehensive energy consumption limits for each. For titanium ingots, the limits are categorized based on the number of melting cycles, specifically distinguishing between two-pass vacuum consumable arc melting and three-pass melting. The technical requirements mandate that existing production enterprises must comply with the Tier 3 limits as a baseline requirement. For new, reconstructed, or expanded projects, stricter compliance is required, mandating adherence to the Tier 2 limits. The standard also outlines the statistical boundaries, clarifying that energy consumption includes all production, auxiliary, and附属 production systems from raw material entry to product warehousing, while excluding energy used during infrastructure or technological transformation project phases. Energy conversion coefficients for various fuels and energy-consuming working fluids must be based on measured values or supplier data. When unavailable, reference values provided in the standard's appendices, such as those for electricity and compressed air, should be utilized. Manufacturers must accurately calculate their comprehensive energy consumption using the prescribed formulas to determine their compliance tier.
Testing methods
The standard prescribes specific calculation methodologies rather than physical testing methods. It requires manufacturers to calculate the comprehensive energy consumption by summing the products of the physical quantity of each energy source consumed and its corresponding standard coal equivalent coefficient. The unit product comprehensive energy consumption is then determined by dividing the total comprehensive energy consumption (minus any recovered secondary energy supplied externally) by the physical output of qualified products, which must meet the specifications outlined in GB/T 2524 and GB/T 26060.
FAQs
What products are regulated under GB 29448-2022?
GB 29448-2022 regulates the energy consumption limits for sponge titanium produced via the magnesium reduction-distillation method and titanium ingots produced via vacuum consumable electric arc furnaces. It does not apply to sponge titanium produced via electrolysis or titanium ingots produced via cold bed furnaces.
Are there any updates from the previous version of GB 29448-2022?
Yes, GB 29448-2022 replaces both GB 29136-2012 and GB 29448-2012. The main technical changes include the deletion of process-specific energy consumption limits for sponge titanium and updates to the comprehensive energy consumption limits for both sponge titanium and titanium ingots.
What are the energy consumption tiers in GB 29448-2022?
The standard establishes a three-tier system where Tier 1 is the most stringent (lowest energy consumption), followed by Tier 2 and Tier 3. Existing facilities must meet at least Tier 3, while new, reconstructed, or expanded projects must meet the stricter Tier 2 requirements.
The summary above provides a high-level overview of GB 29448-2022. 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 29448-2022 today to access all detailed parameters, tables, and calculation procedures.
Applicability hints
- Type
- Management
- CCS
- F01
- ICS
- 27.010
- Competent department
- Standardization Administration of China
- Technical committee
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China
Relationships
Replaces:GB 29136-2012, GB 29448-2012