Current projects of the Chair of Heating and Ventilation
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AirWater – Development of a compact system for independent and continuous solar sorptive water harvesting from the air in arid regions
In Relation to / In the context of the "AirWater" cooperation project, a compact, site-independent system is to be developed that operates without electricity and enables the continuous extraction of water from the air with minimal use of electrical power in arid regions. -
ATEX-WP
In the “ATEX-WP” project, a refrigerant-free heat pump based on the innovative ATEX cycle is being developed, operating solely with compressed air. A novel diaphragm piston machine enables high efficiency even at large volume flows. -
fronTherm - Fassadenheiz- und kühleinheit zur seriellen Sanierung von Bestandsgebäuden
In diesem Projekt wird ein neuartiges System entwickelt, das die gleichzeitige Sanierung von Gebäudehülle und Heizsystem ermöglicht, ohne größere Arbeiten im Inneren des Gebäudes zu verursachen. -
HoVAG
Large-scale heat pumps will play a central role in the climate-neutral heat supply to industry. However, the use of conventional refrigerants is in question due to regulatory requirements (F-Gas Regulation, impending PFAS ban). Future-proof alternatives are “natural refrigerants” such as ammonia. The HoVAG research project aims to develop shell and tube heat exchangers with new high-performance tubes optimized for the evaporation of ammonia. These enhanced heat exchangers will increase the efficiency of large-scale ammonia heat pumps, reducing the required refrigerant charge. -
innoBeLs - Development and assessment of innovative container concepts for latent heat stores in cold solar heating networks
The aim of the "innoBeLs" project is the development and implementation of innovative economically and ecologically beneficial container concepts for latent heat storage for commercial use in solar cold district heating networks. Currently, latent heat or ice stores mainly use cost-intensive concrete tanks with two heat exchanger coil loops. Their production is relatively energy-intensive, leading to significant greenhouse gas emissions. In contrast, the newly developed innovative container concepts aim to reduce environmental impact and resource consumption by at least 50 % and cut costs by at least 20 %. -
integraTE-XL
The aim of the “integraTE-XL” project is to establish technically and economically attractive systems for thermal and electrical energy supply using PVT collectors and heat pumps in existing large apartment buildings and commercial properties in order to achieve significant long-term CO₂ savings. The implementation of PVT systems in the difficult market environment of renovation, through knowledge transfer and the development of planning tools and a “PVT chatbot,” is intended to remove barriers in the renovation market and support the spread of this technology. In parallel, several PVT systems will be examined using measurement technology, products will be tested, and the findings will be presented nationally and internationally. -
MultiHeat
By means of an extensive simulation study it is particularly investigated how locally available renewable energy sources such as solar energy and wind energy can be used in combination with a seasonal heat store to provide a climate-neutral heat supply for existing villages with approximately 2,000 inhabitants and predominantly residential development. -
SolKaN2.0 - Second generation solar cold district heating
The aim of “SolKaN2.0” is to develop a new or second generation of solar cold district heating systems in which water is used as the heat transfer medium instead of a water-antifreeze mixture, as is done today. By this new development, the investment costs can be reduced by more than 20 % and operating costs by around 10 %.
Contact
Dr.-Ing. Harald Drück
Research Coordinator and Team Lead