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IEA HPT Annex 43: Fuel Driven Sorption Heat Pumps
The project aimed at investigating the performance and market potential of gas-fired absorption heat pumps (AHPs) in domestic and small commercial or industrial buildings or applications. Selected processes were simulated for various types of buildings in order to calculate the energetic, ecological and economical potential of this technology. The results were compared with monitoring data of a gas-fired AHP system. In addition, a market survey including market barriers for gas-fired AHPs in Austria was conducted and a list of market supporting measures was compiled.
IEA HPT Annex 48: Industrial Heat Pumps, Second Phase
Industrial heat pumps enable the use of waste heat and increase the energy efficiency of industrial processes. The aim of this project was to provide comprehensive information on the successful application of industrial heat pumps and thus contribute to the further dissemination of this technology.
IEA HPT Annex 49: Design and integration of heat pumps for nZEB
A dominating concept to reach a nearly Zero Energy Building (nZEB) is the combination of solar PV systems and heat pumps. The extended scope of the Annex 49 regards the balance of single buildings and groups of buildings/neighbourhoods, a thorough investigation of heat pump integration options for nZEBs and nZE neighbourhoods by means of monitoring and simulation as well as the design and control optimization for heat pumps in nZEB and the integration into energy systems.
IEA HPT Annex 50: Heat Pumps in Multi-Family Buildings for Space Heating and DHW
The project aims at demonstrating the potentials of heat pump technology for the energy supply of multi-family houses (MFH) and to contribute to the elimination of existing market barriers. Concepts and innovative technology options for heat pumps in MFH will be investigated in detail by means of simulations and experiments. The findings and results will be presented in international expert meetings and disseminated among national heat pump manufacturers, installers and planners.
IEA HPT Annex 51: Acoustic Signatures of Heat Pumps
The aim of the project was to increase the acceptance of heat pumps by reducing their noise emissions and vibrations and to reduce market barriers. Using innovative measurement and data analysis methods, influencing factors on the acoustic emissions of heat pump systems and the impact of acoustic protection measures were investigated. The results were prepared in the form of guidelines and recommendations for action.
IEA HPT Annex 54: Heat pump systems with low GWP refrigerants
The aim of the project was to investigate the current situation in the area of refrigerants with a low global warming potential ("low-GWP"). The focus of the national project lies on the current refrigerant application situation and on an outlook until 2030 on the availability of components and systems.
IEA HPT Annex 55: Comfort and Climate Box – Speeding up market development for integrating heat pumps and storage packages
In the IEA HPT Annex 55, heat pumps with integrated thermal/electrical storage systems for existing buildings that are as close to the market as possible were developed. Furthermore, measures to accelerate market development have been worked out.
IEA HPT Annex 56: Digitalization and Internet of Things for Heat Pumps
As digitalization progresses, heat pumps are becoming part of the Internet of Things (IoT). In this project, the opportunities and challenges of IoT-capable heat pumps for the use in households, commercial enterprises and industrial applications will be investigated. The aim of the project is to provide a structured overview of IoT-enabled heat pumps.
IEA HPT Annex 57: Showing flexibility benefits through heat pump implementation in multi-vector energy systems and thermal networks
This project analyzes the future implementation of heat pumps in multi-vector energy systems and thermal networks. The aim is to increase the flexibility of the energy system and to use it for various applications, e.g. for system services or to participate in different electricity markets. Using international case studies, influencing factors and potentials for flexibility options will be evaluated and suitable business models will be derived.
IEA HPT Annex 58: High-Temperature Heat Pumps
Industrial heat pumps, especially high temperature heat pumps with useful temperatures higher than 100°C, are a central element in the future energy system. In order to increase the application of high temperature heat pumps in industry, this project will provide an overview of the technological possibilities up to the procurement process of high temperature heat pumps. This should increase the understanding of the technology and its potential and reduce existing market barriers.
IEA HPT Annex 59: Heat Pumps for Drying Processes
Drying processes are highly energy-intensive and widespread in industry and commerce as well as in households in various forms. In this project, the potential for energy savings in drying processes in various applications will be investigated, which can be tapped through the use of heat pumps and made available to the relevant target groups in the form of guidelines, data, etc.
IEA HPT Annex 60: Retrofitting Heat Pump Systems in Large Non-domestic Buildings
Lack of knowledge about retrofit options with heat pumps currently hinders the widespread use of the technology in non-residential buildings. In this project, easy-to-use, accessible recommendations for techno-economically optimised planning / design of heat pump applications in hospitals, shopping centres, industrial buildings, educational institutions, and museums will be developed and communicated to relevant target groups in the form of guidelines and training courses.
IEA HPT Annex 61: Heat Pumps in Positive Energy Districts
IEA HPT Annex 61 evaluates the role of heat pumps (HP) in positive energy districts (PED). Efficiency potentials of the electric and thermal energy of districts that can be unlocked with the use of HPs are evaluated in order to reach a positive energy balance. This refers to both, upgrade of waste heat and simultaneous generation of different energy use in buildings (space heating, DHW, space cooling/dehumidification) and includes self-consumption of on-site renewable electricity generation.
IEA HPT Annex 63: Impact of heat pump placement on noise emissions
Noise emissions from heat pumps are a potential barrier for broad market diffusion of this energy efficiency technology, especially in urban areas. In this project, the influences of noise emissions in the building and in the neighbourhood are characterised, their psychoacoustic effects are analysed in more detail, and tools for digitally supporting heat pump placement are further developed. The results will be presented to relevant target groups in the form of guidelines and other documentation.
IEA HPT Annex 64: Safety measures for flammable refrigerants
New bans on chemicals and the revision of the so-called F-Gas Regulation pose new challenges for the heat pump and refrigeration industry. In this project, new knowledge regarding the safe future use of flammable refrigerants in heat pump and refrigeration systems up to 50 kW for room temperature control and hot water preparation is being developed and made available to the relevant target groups.
IEA HPT Task 41: Cold Climate Heat Pumps
The aim was to increase the efficiency of outdoor air heat pumps in cold climates in locations with low outside temperatures of up to -25°C. Newly developed heat exchanger concepts were tested and optimized regarding their icing behaviour. Different circuit modifications were modelled and simulation studies for low ambient temperatures were carried out.
IEA HPT Task 42: Heat pumps in smart energy grids for sustainable cities
The aim of Annex 42 is to analyse the technical possibilities as well as the economic/regulatory framework conditions of heat pumps for load balancing in smart grids, which are largely controlled by electricity supplier, and to investigate the impact on thermal consumers and possible potentials, in order to work out economic incentive models for load shifting and the benefits for energy supply companies and end customers on this basis.
IEA Heat Pumping Technologies (HPT)
The IEA Heat Pump Technologies programme develops and disseminates objective and balanced information on heat pumps, refrigeration technologies and air conditioning with the aim of exploiting the environmentally relevant and energetic potential of these technologies. This programme includes joint research projects, workshops, conferences and an information service (IEA Heat Pump Centre).
IEA Hybrid and Electric Vehicle Technology Collaboration Programme (HEV-TCP)
The Technology Collaboration Programme on Hybrid and Electric Vehicles (HEV TCP) vision is that the electric drivetrain will be used as the predominant transportation mode in a sustainable transport system that is preferably powered by renewable energy and does not produce harmful emissions.
IEA Hydrogen (Hydrogen TCP)
The Hydrogen TCP aims to accelerate deployment and use of hydrogen technologies by carrying out and co-ordinating collaborative activities of analysis, applied research and communication.