We’re excited to announce that our team attended the 5th TGA Congress on May 21–22, 2025, in Berlin. This premier industry event brought together experts, innovators and decision-makers from across the technical building services sector to explore the latest trends, technologies and best practices in sustainable building engineering. With an agenda packed full of keynote presentations, technical sessions and interactive workshops, the congress offered unrivaled opportunities for learning, collaboration and networking. Our booth highlighted the integration of cutting-edge HVAC solutions, the optimisation of energy systems and management platforms, AI-driven building energy and operations management, and advanced air-quality controls.
A standout feature of the congress was the demonstration by TU Berlin’s Hermann-Rietschel-Institut IEQ Lab of a Virtual Reality–integrated climate chamber. This fully instrumented chamber—equipped with 54 independently controlled radiant panels for heating and cooling and a high-capacity HVAC system—recreates any room’s thermal and visual conditions in real time through Modelica simulations. In the VR environment, users adjust room geometry, lighting, window positions, and more, while the chamber responds with surface temperature swings of up to 5 K in just 30 seconds and precise control of humidity and air temperature. Validation studies, which employed comfort questionnaires, cybersickness metrics, and cognitive tasks (O-SPAN, R-SPAN, Stroop), confirmed that the VR-coupled system faithfully reproduces both thermal and visual comfort without provoking undue VR sickness—paving the way for the inclusion of additional IEQ indices and interactive parameters in future research.
Beyond serving as a platform for professional exchange, the TGA Congress also promoted extensive networking and interdisciplinary dialogue. We believe that the new insights gained and strengthened partnerships formed through this event will enable us to address emerging challenges and drive innovative solutions in the field of building technology.
