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EN 15255:2007

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Energy performance of buildings - Sensible room cooling load calculation - General criteria and validation procedures

Superseded date

01-07-2017

Published date

22-08-2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols and units
  3.3 Subscripts
4 Basic assumptions
5 Data requirement
  5.1 General
  5.2 Climatic data
  5.3 Descriptions of the envelope elements
      5.3.1 General
      5.3.2 Boundary conditions
      5.3.3 Heat transfer coefficients
      5.3.4 Geometrical and thermophysical parameters
            of the room envelope
  5.4 Cooling system device
      5.4.1 General
      5.4.2 Convective device
      5.4.3 Cooled surface device
  5.5 Classification of the cooling load calculation
      method
6 Report of the calculation
7 Validation procedures
  7.1 General
  7.2 Reference room
  7.3 Climatic data
  7.4 Test cases
  7.5 Parameters to be calculated
  7.6 Test results
Annex A (informative) - Example of calculation method
        based on a simplified model
      A.1 Introduction
      A.2 Calculation of internal air and operative
          temperatures for a given value of applied
          cooling power
          A.2.1 Presentation
          A.2.2 Determination of the air and operative
                temperatures
          A.2.3 Terms in Equations (A.1), (A.2), (A.3),
                (A.4) and (A.5)
      A.3 Calculation of internal temperatures and required
          cooling power
          A.3.1 General description
          A.3.2 Calculation procedure for control on
                air temperature
          A.3.3 Calculation procedure for control on
                operative temperature
Bibliography

This European Standard sets out the level of input and output data, and prescribes the boundary conditions required for a calculation method of the sensible cooling load of a single room under constant and/or floating temperature taking into account the limit of the peak cooling load of the system. It includes a classification scheme of the calculation method and the criteria to be met by a calculation method in order to comply with this European Standard.The purpose of this European Standard is to validate calculation methods used to:evaluate the maximum cooling load for equipment selection and cooling system design;evaluate the temperature profile when the cooling capacity of the system is reduced;provide data for evaluation of the optimum possibilities for load reduction;allow analysis of partial loads as required for system design, operation and control.The validation procedure is used to check the room sensible heat balance model, taking into account:the external surface heat balance;the conduction through the building envelope;the effect of the thermal mass of the structures;the internal surface heat balance;the air heat balance;the heat balance solution method.All other aspects are given either by fixed boundary conditions or by input data and are not in the focus of the model validation. It is assumed that for all these other matters e.g. embedded heating and cooling systems, prescriptive models have to be used according to existing European Standards.Informative Annex A gives a simplified method for cooling load calculation.

Committee
CEN/TC 89
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded

Standards Relationship
NBN EN 15255 : 2007 Identical
PN EN 15255 : 2011 Identical
NEN EN 15255 : 2007 Identical
SN EN 15255 : 2007 Identical
BS EN 15255:2007 Identical
I.S. EN 15255:2007 Identical
NF EN 15255 : 2008 Identical
UNI EN 15255 : 2008 Identical
NS EN 15255 : 1ED 2007 Identical
DIN EN 15255 E : 2007 Identical
DIN EN 15255:2007-11 Identical
UNE-EN 15255:2007 Identical

15/30331528 DC : 0 BS EN 15232-1 - ENERGY PERFORMANCE OF BUILDINGS - PART 1: IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT - MODULES M10-4, 5, 6, 7, 8, 9, 10
BS EN ISO 11855-4:2015 Building environment design. Design, dimensioning, installation and control of embedded radiant heating and cooling systems Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS)
PD CEN ISO/TR 52016-2:2017 Energy performance of buildings. Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads Explanation and justification of ISO 52016-1 and ISO 52017-1
DIN EN 15243 E : 2007 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
UNE-EN ISO 11855-4:2016 Building environment design - Design, dimensioning, installation and control of embedded radiant heating and cooling systems - Part 4: Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS) (ISO 11855-4:2012)
EN ISO 52016-1:2017 Energy performance of buildings - Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads - Part 1: Calculation procedures (ISO 52016-1:2017)
DIN EN 15232:2012-04 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
BS EN 15232:2012 Energy performance of buildings. Impact of Building Automation, Controls and Building Management
CEN ISO/TR 52016-2:2017 Energy performance of buildings - Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads - Part 2: Explanation and justification of ISO 52016-1 and ISO 52017-1 (ISO/TR 52016-2:2017)
BS EN 15232-1:2017 Energy Performance of Buildings Impact of Building Automation, Controls and Building Management. Modules M10-4,5,6,7,8,9,10
EN 16798-17:2017 Energy performance of buildings - Ventilation for buildings - Part 17: Guidelines for inspection of ventilation and air conditioning systems (Module M4-11, M5-11, M6-11, M7-11)
10/30197172 DC : 0 BS ISO 11855-4 - BUILDING ENVIRONMENT DESIGN - DESIGN, CONSTRUCTION AND OPERATION OF RADIANT HEATING AND COOLING SYSTEMS - PART 4: DIMENSIONING AND CALCULATION OF THE DYNAMIC HEATING AND COOLING CAPACITY FOR THERMO ACTIVE BUILDING SYSTEMS (TABS)
BS EN 16798-17:2017 Energy performance of buildings. Ventilation for buildings Guidelines for inspection of ventilation and air conditioning systems (Module M4-11, M5-11, M6-11, M7- 11)
15/30263791 DC : 0 BS ISO 17772-1 - ENERGY PERFORMANCE OF BUILDINGS - INDOOR ENVIRONMENTAL QUALITY - PART 1: INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR THE DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS
ISO 52016-1:2017 Energy performance of buildings — Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads — Part 1: Calculation procedures
I.S. EN 15243:2007 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
DIN EN 15232 E : 2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
UNE-EN 15232:2014 Energy performance of buildings - Impact of Building Automation, Controls and Building Management
VDI 2078:2015-06 Calculation of thermal loads and room temperatures (design cooling load and annual simulation)
I.S. EN ISO 52017-1:2017 ENERGY PERFORMANCE OF BUILDINGS - SENSIBLE AND LATENT HEAT LOADS AND INTERNAL TEMPERATURES - PART 1: GENERIC CALCULATION PROCEDURES (ISO 52017-1:2017)
I.S. EN 15377-3:2007 HEATING SYSTEMS IN BUILDINGS - DESIGN OF EMBEDDED WATER BASED SURFACE HEATING AND COOLING SYSTEMS - PART 3: OPTIMIZING FOR USE OF RENEWABLE ENERGY SOURCES
S.R. CEN ISO/TR 52016-2:2017 ENERGY PERFORMANCE OF BUILDINGS - ENERGY NEEDS FOR HEATING AND COOLING, INTERNAL TEMPERATURES AND SENSIBLE AND LATENT HEAT LOADS - PART 2: EXPLANATION AND JUSTIFICATION OF ISO 52016-1 AND ISO 52017-1 (ISO/TR 52016-2:2017)
BS ISO 17772-1:2017 Energy performance of buildings. Indoor environmental quality Indoor environmental input parameters for the design and assessment of energy performance of buildings
CEN/TR 15615:2008 Explanation of the general relationship between various European standards and the Energy Performance of Buildings Directive (EPBD) - Umbrella Document
15/30297473 DC : 0 BS EN 16798-1 - ENERGY PERFORMANCE OF BUILDINGS - PART 1: INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS ADDRESSING INDOOR AIR QUALITY, THERMAL ENVIRONMENT, LIGHTING AND ACOUSTICS - MODULE M1-6
ISO 52017-1:2017 Energy performance of buildings — Sensible and latent heat loads and internal temperatures — Part 1: Generic calculation procedures
I.S. EN ISO 11855-4:2015 BUILDING ENVIRONMENT DESIGN - DESIGN, DIMENSIONING, INSTALLATION AND CONTROL OF EMBEDDED RADIANT HEATING AND COOLING SYSTEMS - PART 4: DIMENSIONING AND CALCULATION OF THE DYNAMIC HEATING AND COOLING CAPACITY OF THERMO ACTIVE BUILDING SYSTEMS (TABS) (ISO 11855-4:2012)
ISO 23045:2008 Building environment design Guidelines to assess energy efficiency of new buildings
I.S. EN ISO 52016-1:2017 ENERGY PERFORMANCE OF BUILDINGS - ENERGY NEEDS FOR HEATING AND COOLING, INTERNAL TEMPERATURES AND SENSIBLE AND LATENT HEAT LOADS - PART 1: CALCULATION PROCEDURES (ISO 52016-1:2017)
EN 15232-1:2017 Energy Performance of Buildings - Energy performance of buildings - Part 1: Impact of Building Automation, Controls and Building Management - Modules M10-4,5,6,7,8,9,10
ISO/TR 52016-2:2017 Energy performance of buildings Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads Part 2: Explanation and justification of ISO 52016-1 and ISO 52017-1
UNI EN 15232 : 2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
BS EN 15243:2007 Ventilation for buildings. Calculation of room temperatures and of load and energy for buildings with room conditioning systems
15/30297476 DC : 0 BS EN 16798-17 - ENERGY PERFORMANCE OF BUILDINGS - PART 17: VENTILATION FOR BUILDINGS - MODULE M4-11, M5-11, M6-11, M7-11 - GUIDELINES FOR INSPECTION OF VENTILATION AND AIR CONDITIONING SYSTEMS
11/30244232 DC : DRAFT JUNE 2011 BS EN 15232 - ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
DIN EN 15243:2007-10 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
I.S. EN 16798-17:2017 ENERGY PERFORMANCE OF BUILDINGS - VENTILATION FOR BUILDINGS - PART 17: GUIDELINES FOR INSPECTION OF VENTILATION AND AIR CONDITIONING SYSTEMS (MODULE M4-11, M5-11, M6-11, M7-11)
I.S. EN 15232-1:2017 ENERGY PERFORMANCE OF BUILDINGS - ENERGY PERFORMANCE OF BUILDINGS - PART 1: IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT - MODULES M10-4, 5, 6, 7, 8, 9, 10
EN ISO 11855-4:2015 BUILDING ENVIRONMENT DESIGN - DESIGN, DIMENSIONING, INSTALLATION AND CONTROL OF EMBEDDED RADIANT HEATING AND COOLING SYSTEMS - PART 4: DIMENSIONING AND CALCULATION OF THE DYNAMIC HEATING AND COOLING CAPACITY OF THERMO ACTIVE BUILDING SYSTEMS (TABS) (ISO 11855-4:2012)
EN 15243:2007 Ventilation for buildings - Calculation of room temperatures and of load and energy for buildings with room conditioning systems
EN 15377-3:2007 Heating systems in buildings - Design of embedded water based surface heating and cooling systems - Part 3: Optimizing for use of renewable energy sources
EN 15232:2012 Energy performance of buildings - Impact of Building Automation, Controls and Building Management
I.S. EN 15232:2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
PD CEN/TR 15615:2008 Explanation of the general relationship between various CEN standards and the Energy Performance of Buildings Directive (EPBD). Umbrella document
ISO 17772-1:2017 Energy performance of buildings — Indoor environmental quality — Part 1: Indoor environmental input parameters for the design and assessment of energy performance of buildings
DIN EN 16798-17 E : 2017 ENERGY PERFORMANCE OF BUILDINGS - VENTILATION FOR BUILDINGS - PART 17: GUIDELINES FOR INSPECTION OF VENTILATION AND AIR CONDITIONING SYSTEMS (MODULE M4-11, M5-11, M6-11, M7-11)
EN ISO 52017-1:2017 Energy performance of buildings - Sensible and latent heat loads and internal temperatures - Part 1: Generic calculation procedures (ISO 52017-1:2017)
ISO 11855-4:2012 Building environment design Design, dimensioning, installation and control of embedded radiant heating and cooling systems Part 4: Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS)
BS EN 15377-3:2007 Heating systems in buildings. Design of embedded water based surface heating and cooling systems Optimizing for use of renewable energy sources
DIN EN 16798-17:2017-11 ENERGY PERFORMANCE OF BUILDINGS - VENTILATION FOR BUILDINGS - PART 17: GUIDELINES FOR INSPECTION OF VENTILATION AND AIR CONDITIONING SYSTEMS (MODULE M4-11, M5-11, M6-11, M7-11)
DIN EN 15377-3:2007-12 HEATING SYSTEMS IN BUILDINGS - DESIGN OF EMBEDDED WATER BASED SURFACE HEATING AND COOLING SYSTEMS - PART 3: OPTIMIZING FOR USE OF RENEWABLE ENERGY SOURCES

EN ISO 13792:2012 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - Simplified methods (ISO 13792:2012)
EN ISO 15927-4:2005 Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 4: Hourly data for assessing the annual energy use for heating and cooling (ISO 15927-4:2005)
ISO 13792:2012 Thermal performance of buildings Calculation of internal temperatures of a room in summer without mechanical cooling Simplified methods
EN 13363-2:2005/AC:2006 SOLAR PROTECTION DEVICES COMBINED WITH GLAZING - CALCULATION OF TOTAL SOLAR ENERGY TRANSMITTANCE AND LIGHT TRANSMITTANCE - PART 2: DETAILED CALCULATION METHOD
EN 410:2011 Glass in building - Determination of luminous and solar characteristics of glazing
ISO 15927-4:2005 Hygrothermal performance of buildings — Calculation and presentation of climatic data — Part 4: Hourly data for assessing the annual energy use for heating and cooling
EN ISO 9251:1995 Thermal insulation - Heat transfer conditions and properties of materials - Vocabulary (ISO 9251:1987)
EN 15377-1:2008 Heating systems in buildings - Design of embedded water based surface heating and cooling systems - Part 1: Determination of the design heating and cooling capacity
EN ISO 9288:1996 Thermal insulation - Heat transfer by radiation - Physical quantities and definitions (ISO 9288:1989)
PRCEN/TR 15615 : DRAFT 2014 ENERGY PERFORMANCE OF BUILDINGS - MODULE M1-X - ACCOMPANYING TECHNICAL REPORT ON DRAFT OVERARCHING STANDARD EPB (PREN 15603)
ISO 9288:1989 Thermal insulation — Heat transfer by radiation — Physical quantities and definitions
EN ISO 13791:2012 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - General criteria and validation procedures (ISO 13791:2012)
ISO 13786:2017 Thermal performance of building components — Dynamic thermal characteristics — Calculation methods
ISO 13791:2012 Thermal performance of buildings Calculation of internal temperatures of a room in summer without mechanical cooling General criteria and validation procedures
ISO 10077-1:2017 Thermal performance of windows, doors and shutters — Calculation of thermal transmittance — Part 1: General
ISO 9251:1987 Thermal insulation Heat transfer conditions and properties of materials Vocabulary
ISO 7345:1987 Thermal insulation Physical quantities and definitions
EN ISO 10077-1:2017 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General (ISO 10077-1:2017, Corrected version 2020-02)

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