DB21/T 4450-2026
DB21 · 2026-05-30
Energy Efficiency Evaluation of Cogeneration Boiler Systems
1Key Takeaways
This document establishes a structured framework for evaluating energy efficiency within combined heat and power boiler systems operating in specific regional contexts. It defines key parameters and metrics necessary to assess the performance of equipment designed to generate both electricity and usable thermal energy…
2Scope / Description
This document establishes a structured framework for evaluating energy efficiency within combined heat and power boiler systems operating in specific regional contexts. It defines key parameters and metrics necessary to assess the performance of equipment designed to generate both electricity and usable thermal energy simultaneously. The content outlines methodologies for calculating overall system efficiency, ensuring that operational data aligns with established conservation targets. It addresses critical components such as fuel conversion rates, heat distribution losses, and the integration of auxiliary equipment into the broader production process. The guidelines provided facilitate consistent monitoring and reporting practices across various industrial facilities utilizing these combined cycles. By standardizing measurement techniques and performance indicators, this publication supports systematic improvements in resource utilization and emission management. It serves as a reference for technical personnel responsible for auditing plant operations and implementing upgrades to existing infrastructure. The approach focuses on practical application, offering clear instructions on how to measure specific energy flows and determine the effectiveness of the combined generation process without compromising system stability.
3Version History
DB21/T 4450-2026
2026-05-30
5Citation Network
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6Frequently Asked Questions
What is DB21/T 4450-2026?
DB21/T 4450-2026 — Energy Efficiency Evaluation of Cogeneration Boiler Systems is an international standard developed by Liaoning Provincial Standard of the People's Republic of China. This document establishes a structured framework for evaluating energy efficiency within combined heat and power boiler systems operating in specific regional contexts. It defines key parameters and metrics necessary to assess the performance of...
What does DB21/T 4450-2026 cover?
This standard covers: This document establishes a structured framework for evaluating energy efficiency within combined heat and power boiler systems operating in specific regional contexts. It defines key parameters and metrics necessary to assess the performance of equipment designed to generate both electricity and...
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in occupational health and safety management. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of DB21/T 4450-2026?
The current published version is DB21/T 4450-2026, published on 2026-05-30. Always check for amendments or pending revisions.
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