IEA HPP Annex 40
Heat pump concepts for Nearly Zero Energy Buildings (nZEB)
IEA HPP Annex 40 –
International collaboration
Outline and national contributionsCarsten Wemhoener,
University of Applied Sciences Rapperswil
Titelmasterformat durch Klicken bearbeiten
Introduction to nZEB
Outline of IEA HPP Annex 40
Participants
Tasks
National contributions to Annex 40
Conclusions and outlook
Outline
http://www.neuemonterosahuette.ch source: Tonatiuh Ambrosetti nZEB in 2880 m altitude at Monte Rosa, Swiss Alps, construction objective: 90% self-sufficiency
Titelmasterformat durch Klicken bearbeiten
Overview of IEA HPP Annex 40
Task 1: State-of-the-art
Task 2: System comparison
State-of-the-art
Task 2: Technology development
State-of-the-art
Task 4: nZEB in the energy system
State-of-the-art
Conclusions and questions
Titelmasterformat durch Klicken bearbeiten
Overview of IEA HPP Annex 40
Task 1: State-of-the-art
Task 2: System comparison
State-of-the-art
Task 2: Technology development
State-of-the-art
Task 4: nZEB in the energy system
State-of-the-art
Conclusions and questions
Development building sector Germany
Building envelope
System technologies
Passive technologies
Active technologies
Titelmasterformat durch Klicken bearbeiten
Principle of Nearly Zero Energy Buildings (NZEBs)
• Building system boundary Physical boundary
Balance boundary
• Weighting system Metrics
Symmetry
Time dependent weighting • Net ZEB Balance
Balancing period Type of balance Energy efficiency Energy supply
• Temporal energy match characteristic Load mismatch
Grid interaction
• Measurement and verification
weighted energy consumption
w e ig h te d e n e rg y s u p p ly
modified from Sartori et al.
energy efficiency passive approaches re n e w a b le e n e rg y g e n e ra ti o n
Items for a consistent definition
Titelmasterformat durch Klicken bearbeiten
source: MINERGIE®
Zero
heating
energy-house
Zero
heat
energy-house
Zero
operational
energy-house
Zeroenergy
-house
Zero-
LCA
-house
+
+
+
+ +
+
+
+
+
+
+
+
+
energy heating
energy heatingenergy DHW
electricity ventilation auxiliary electricity energy heating energy DHW auxiliary electricity electricity ventilation electricity appliances embodied energy
energy heatingenergy DHW
electricity ventilation electricity appliances auxiliary electricity energy heating energy DHW embodied energy energy heating electricity appliances auxiliary electricity energy DHW electricity ventilation
Titelmasterformat durch Klicken bearbeiten
Participating countries and institutions
CA: CanmetENERGY of Natural Resources, Hydro-Québec (since Jan. 2014)
CH: HSR Rapperswil, FHNW, Energie solaire SA
DE: Fraunhofer ISE (since June 2014)
FI: SULPU, VTT, Aalto University, Green Net Finland (since Jan. 2014)
JP: Uni Nagoya, HPTCJ, Japanese manufacturers
NL: platform 31, TNO
NO: Enova SF, SINTEF Energy Research, NTNU, COWI AS
SE: SP, Swedish manufacturers
US: ORNL, University of Maryland, NIST
Titelmasterformat durch Klicken bearbeiten
Task 1: State-of-the-art nZEB-Technologies and concepts
Classification of used technologies
Task 2: Assessment and improvement of nZEB concepts
Technology comparison for performance and cost
Design and control of systems
Options for building- and system integration
Task 3: Developments and field monitoring
Technology developments of heat pump systems
Monitoring of systems in nZEB
Task 4: Integration of nZEB into the energy system
Load mismatch and grid interaction
Self-consumption, Storage integration, Smart Tech
Projekt structure of IEA HPP Annex 40
Quelle: Ebert et al. Quelle: Pogharian et al.
Titelmasterformat durch Klicken bearbeiten
Framework and political targets
Definition of Nearly Zero Energy Buildings (NZEB)
Outline of an IEA HPP Annex 40 on Heat Pump Concepts for NZEBs
Objectives and Scope
Tasks
Links to other projects
State and participants
Titelmasterformat durch Klicken bearbeiten
DEFINITION “Nearly Zero Energy Building”
Means a building that has a very high energy performance
Nearly or very low energy amount should be covered to a very significant extent by energy from renewable sources, including renewable energy produced on-site or nearby
Presently no common definition of nZEB, neither in policy nor in the market
nZEB Definition
Timeline of EPBD recast for nZEBs
Titelmasterformat durch Klicken bearbeiten
Task 1: State-of-the-art nZEB-Technologies and concepts
Classification of used technologies
Task 2: Assessment and improvement of nZEB concepts
Technology comparison for performance and cost
Design and control of systems
Options for building- and system integration
Task 3: Developments and field monitoring
Technology developments of heat pump systems
Monitoring of systems in nZEB
Task 4: Integration of nZEB into the energy system
Load mismatch and grid interaction
Self-consumption, Storage integration, Smart Tech
Projekt structure of IEA HPP Annex 40
Quelle: Ebert et al. Quelle: Pogharian et al.
Titelmasterformat durch Klicken bearbeiten
source: Yoon .2014. Annex 40 workshop, IEA HPC 2014
Titelmasterformat durch Klicken bearbeiten
source: Yoon .2014. Annex 40 workshop, IEA HPC 2014
Titelmasterformat durch Klicken bearbeiten
IEA HPP Annex 40 – Task 2 – System assessment
Titelmasterformat durch Klicken bearbeiten
Task 1: State-of-the-art nZEB-Technologies and concepts
Classification of used technologies
Task 2: Assessment and improvement of nZEB concepts
Technology comparison for performance and cost
Design and control of systems
Options for building- and system integration
Task 3: Developments and field monitoring
Technology developments of heat pump systems
Monitoring of systems in nZEB
Task 4: Integration of nZEB into the energy system
Load mismatch and grid interaction
Self-consumption, Storage integration, Smart Tech
Projekt structure of IEA HPP Annex 40
Quelle: Ebert et al. Quelle: Pogharian et al.
Titelmasterformat durch Klicken bearbeiten
source: Justo Alonso. 2013. Annex 40 working meeting, Delft
Titelmasterformat durch Klicken bearbeiten
IEA HPP Annex 40 – Task 3 - Technology development and field trial
Energiesprong project run by platform31, concept evaluation by TNO
Large field monitoring program Energie sprong (Energy leap)
Evaluation of strategies for new buildings and retrofitting to high performance buildings
Concepts comprise heat pump solutions and new nZEB and retrofitting to nZEB
Titelmasterformat durch Klicken bearbeiten
Contribution of Sweden to Task 2 and Task 3
System comparison
Development of adapted heat pumps for nZEB (SFH/MFH)
Testing of prototype heat pumps and monitoring in nZEB
IEA HPP Annex 40 – Task 3 - Technology development and field trial
Titelmasterformat durch Klicken bearbeiten
Simulation study on system variants
Integration of heat pump and solar technologies
Simulation of different system configurations
for office buildings
for building functions SH, DHW, SC
Test of solar components in lab tests
Evaluation of real behaviour of components in lab-test as validation for the modelling
System analysis
Evaluation of performance in different operation modes
Evaluation of design of components for different NZE applications
IEA HPP Annex 40 – Task 3 - Technology development and field trial
source: Baxter
Titelmasterformat durch Klicken bearbeiten
Contribution USA to IEA HPP Annex 40
Oak Ridge National Laboratory (ORNL):
Field monitoring and further development of IHP
Highly Integrated Heat Pump (IHP)
for building functions SH, DHW, SC, Ventilation, DH
Center for Environmental Energy Engineering (CEEE)
University of Maryland
Development of Thermcom Software
for the evaluation of thermal comfort for
different radiative heating and cooling systems
NIST: National Institute of Standards and Technologies
Operation of a n Net Zero Energy Residential Test Facility
Monitoring and calibration of NZEB loads
Test of different NZEB heat pump technologies Simulation of concepts
IEA HPP Annex 40 – Task 3 - Technology development and field trial
source: NIST source: CEEE source:
Titelmasterformat durch Klicken bearbeiten
Task 1: State-of-the-art nZEB-Technologies and concepts
Classification of used technologies
Task 2: Assessment and improvement of nZEB concepts
Technology comparison for performance and cost
Design and control of systems
Options for building- and system integration
Task 3: Developments and field monitoring
Technology developments of heat pump systems
Monitoring of systems in nZEB
Task 4: Integration of nZEB into the energy system
Load mismatch and grid interaction
Self-consumption, Storage integration, Smart Tech
Projekt structure of IEA HPP Annex 40
Quelle: Ebert et al. Quelle: Pogharian et al.
Titelmasterformat durch Klicken bearbeiten
Contribution Germany
Long-term monitoring of office buildings equipped with heat pumps
Evaluation of different system boundaries
Optimisation of systems
Operation of systems for demand response and load management
IEA HPP Annex 40 – Task 3/4 – Integration into energy system
Titelmasterformat durch Klicken bearbeiten
IEA HPP Annex 40 – Task 3/4 – Integration into energy system
Multi-family house in CH with electro-mobility
Quelle: Hall, Dorusch. 2013.
controllable electric power consumption [kWh] (heat pump, dishwasher, E-car)
not controllable electric power consumption [kWh]
PV production [kWh] switchable load [kWh] P V -p ro d u c ti o n / E l. p o w e r c o n s u m p ti o n [ k W h ]
Optimized switchable load
– PV production: 19’800 kWh
– Total power consumption (0-24h) 13’165 kWh
– Total power consumption (10-16h) 3’191 kWh
– possible switchable load: 3’674 kWh
Titelmasterformat durch Klicken bearbeiten
Heat pumps have already a key position in realised nZEB
Heat pumps and nZEB are the interface between
different infrastructures and technologies
Storage in DHW and space heating storages
Storage in the building thermal mass
Storage in the ground
Link to E-Mobility
Heat pumps offer
still many integration
potentials on different levels
Quelle: Axell, M. 2013. Vortrag European Heat pump summit, Nürnberg
Conclusions
Titelmasterformat durch Klicken bearbeiten
Deliverables of Annex 40 are intended
to be published in the beginning of 2016
Deliverables will be presented
on Annex 40 website at
http://www.annex40.net
Titelmasterformat durch Klicken bearbeiten
