超低能耗居住建筑节能设计标准 DB2101T0048—2022.pdf

DB2101/T0048-2022ContentsI General provisions.2.33 Basic regulations and technical indicators.43.1 General requirements.43.2 Indoor and outdoor calculation parameters.43.3 Building Energy Criteria.43.4 Limits of thermal performance of building envelope.53.5 Energy equipment indicators.64 Architectural.84.1 General requirements.84.2 Thermal design.84.3 Air tightness design.94.4 thermal bridge.94.5 Daylight and shading design.5 Heating,ventilation and air conditioning system design.125.1 General requirements.125.2 Fresh air heat recovery and ventilation system.125.3 Heating,air-conditioning system.146 Electrical system design.156.1 General requirements.156.2 Power supply and distribution system.156.2 lighting system.156.2 Electric energy monitoring and metering.157 Energy efficiency index calculation167.1 General requirements.67.2 Comprehensive value calculation of building energy consumption.18Appendix A Reference coefficient of various energy discount standard coal(normative).20Appendix B Insulation and Construction practices of envelope structures(normative).2.Appendix C External Window Specification and Thermal Performance(normative).3Appendix D Sun height Angle of Summer and Winter in Shenyang City(information).26Appendix E Shenyang city annual hourly calculation of temperature(information).27Appendix F Calculation Methods of Building Area and Building Volume(normative).45