DIN V 18599-2:2016-10

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols, units and subscripts
4 Relationship between the parts of the DIN V 18599 series of
  prestandards
  4.1 Input parameters from other parts of the DIN V 18599
      series of prestandards
  4.2 Output parameters for other parts of the DIN V 18599
      series of prestandards
  4.3 Determination of the energy use for various types of
      technical building systems according to the DIN V 18599
      series of prestandards
5 Monthly balance calculation method
  5.1 Principle of balance calculation method
  5.2 Balance equations for calculating the energy needs of a
      building zone for heating and cooling
  5.3 Heat sinks
  5.4 Heat sources
  5.5 Utilization of the heat sources
6 Determination of individual parameters for the monthly balance
  6.1 Room temperature assumptions
  6.2 Transmission heat sinks/heat sources
  6.3 Ventilation heat sinks/sources
  6.4 Radiation heat sources and sinks
  6.5 Internal heat sources and sources of cold
  6.6 Taking into account stored heat between days of usage and
      non-usage
  6.7 Utilization factors of heat sources
Annex A (normative) Shading factors and movable solar protection
        devices
      A.1 General
      A.2 Correction factors for external shading
      A.3 Evaluation of movable solar protection devices
Annex B (normative) Maximum heating power in the building zone
      B.1 General
      B.2 Calculation of the maximum heating power Q[h,max] for a
          design reference day (without mechanical ventilation)
      B.3 Design condition
      B.4 Maximum heating power, taking into consideration a
          mechanical ventilation system
Annex C (normative) Maximum cooling power in the building zone
      C.1 General
      C.2 Calculation of the required maximum cooling power
      C.3 Design condition
      C.4 Calculation of heat sources and sinks under design conditions
      C.5 Cooling power required in a building zone equipped with
          a mechanical ventilation system
Annex D (normative) Calculation of monthly heating and cooling times
      D.1 General
      D.2 Monthly heating time
      D.3 Monthly cooling time
Annex E (informative) Default values of volume flow of HVAC systems
      E.1 General
      E.2 Default values for the permissible volume flow
Bibliography

Describes methods of calculating the energy needs for heating and cooling of the section of the building being assessed. The calculations are based on a specific zone of the building defined according to its intended use.