QX/T 255-2015 in English

Standard Background and Technical Evolution

QX/T 255-2015 is the first meteorological industry standard in my country specifically for heating systems, filling the technical gap between meteorological services and urban heating management. This standard is based on the research results of the Beijing Meteorological Bureau for many years, integrates heat balance theory and actual heating data, and innovatively proposes the core indicator of "energy-saving temperature".

Analysis of term definitions

Grading system

The standard divides heating demand into 6 meteorological levels, corresponding to different heating strategies:

Key technical formulas

The core calculation model includes three major corrections:

1. Latitude correction:Ap=0.935(φ-39.93) (φ≤38.5°)
2. Altitude correction:AZ=0.0043(Z-54.7)
3. Wind speed correction:T_v=∑(v_j^2/v₀^2)×ΔT

Implementation suggestions

Things to note when applying this standard:

• Establish a localized parameter library (such as the building heat transfer coefficient K value)
• Connect with the SCADA system data of the heating company
• Carry out energy-saving temperature prediction drills before heating