Contract: EIE/07/069/SI Duration: October 2007 – March 2010Version: July 7, 2009 Calculation of the integrated energy performance of buildings EN 15316: Heating systems in buildings Method for calculation of system energy requirements and system efficiencies Part 4-2: Space heating generation systems, heat pump systems Theo Thijssen TNO Built environment and geosciences The Netherlands

slide 2 The EU CENSE project (Oct March 2010) Aim of the project: To accelerate adoption and improved effectiveness of the EPBD related CEN- standards in the EU Member States These standards were successively published in the years and are being implemented or planned to be implemented in many EU Member States. However, the full implementation is not a trivial task Main project activities: A.To widely communicate role, status and content of these standards; to provide guidance on the implementation B.To collect comments and good practice examples from Member States aiming to remove obstacles C.To prepare recommendations to CEN for a “second generation” of standards on the integrated energy performance of buildings

slide 3 Brief introduction A brief introduction to the CENSE project and the CEN-EPBD standards is provided in a separate presentation:

slide 4 More information More information and downloads: Disclaimer: CENSE has received funding from the Community’s Intelligent Energy Europe programme under the contract EIE/07/069/SI The content of this presentation reflects the authors view. The author(s) and the European Commission are not liable for any use that may be made of the information contained therein. Moreover, because this is an interim result of the project: any conclusions are only preliminary and may change in the course of the project based on further feedback from the contributors, additional collected information and/or increased insight.

FITTING INTO THE CALCULATION SCHEME slide 5

slide 6 BUILDING ENERGY PERFORMANCE CALCULATION HEATING SYSTEM GENERATION SYSTEMS HEATING SYSTEM HEAT GENERATION BOILERS HEAT-PUMPS THERMAL SOLAR CHP DISTRICT HEATING PHOTOVOLTAIC BIOMASS AIR HEATERS

Heat pumps Heat pumps: Transporting heat instead of generating heat Efficiency electrical heat pumps: 120% (COP = 3) – 200% (COP = 5) Efficiency gas driven heat pumps: 120% (COP = 1.2) – 160% (COP = 1.6) Theoretically maximum efficiency of gas boilers: 100%

Outline Scope of the standard Principle of the methods Description of the methods With permission and courtesy of Techneco Energiesystemen BV, The Netherlands

Scope of the standard The standard gives a calculation method for determining the seasonal energy performance of heat pumps. Both energy performance for space heating and domestic hot water production are covered by the standard. The method can also be applied for: Judging compliance with regulations expressed in terms of energy targets, Optimisation of energy performance of a planned system, Assessing the effect of energy conservation measures on an existing system. Heat pump sizing is not covered by the standard, it is meant for calculating the in-use energy performance. Framework for the calculation: EN 15603

Principle of the methods Heating purposespace heating / domestic hot water Storagewith / without storage vessel Operationindividual operation / with supplemental heater Fuelelectric / fossil fuel (biomass covered by EN ) CycleCompression / absorption Heat sourceoutdoor air / exhaust air / indirect ground source / direct ground heat source Heat sinkWater / air / direct condensation Locationheated space / non-heated space Systems covered by EN :

Description of the method Two possible methods depending on complexity: The typology method Characterized by high simplicity Pre-calculated annual efficiencies, depending on a limited set of heat pump, heat source and installation characteristics

Description of the method Two possible methods depending on complexity: The typology method

Two possible methods depending on complexity: The bin method Characterized by high accuracy for all kinds of systems Heating season divided in a number of bins separating time interval (weeks/months) or outside temperatures Conditions per bin are determined through measurement and optional interpolation Weighted averaging gives annual COP Description of the method

Two possible methods depending on complexity: The bin method

More information More information and downloads: Disclaimer: CENSE has received funding from the Community’s Intelligent Energy Europe programme under the contract EIE/07/069/SI The content of this presentation reflects the authors view. The author(s) and the European Commission are not liable for any use that may be made of the information contained therein. Moreover, because this is an interim result of the project: any conclusions are only preliminary and may change in the course of the project based on further feedback from the contributors, additional collected information and/or increased insight.