Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in industry and the academic community.
PO372: Wind power plant with integrated thermal storage in wind turbine towers for microgird electricity and heat supply
Kristina Lazović, Teaching Assistant, University of Belgrade
Abstract
One of the main technical challenges in achieving energy independence in microgrids with renewable energy sources is the temporal mismatch between energy generation and consumption profiles. Given that heating and cooling demands in microgrids are significant, the problem of maintaining energy balance should be addressed through an integrated approach that combines both electrical and thermal energy supply. This paper proposes a novel concept of wind turbines with integrated hot-water tanks embedded within the turbine tower. Water tank has an operating principle of large volume water heater and serves as thermal energy storage. Proposed design leverages the structural properties of steel towers improving the tower’s mechanical stability by increasing its inertia and reducing resonance frequency. The system integrates an internal heat pump that transfers heat from the lower to the upper layers of the tank, an external ground-source heat pump utilizing the turbine foundation, and resistive heaters for direct and rapid water heating. Heat pumps are powered from the turbine’s medium voltage connection point, whereas resistive heaters can be supplied directly from the generator. Waste heat from turbine components can also be recovered using a heat exchanger in the tower reservoir instead of a standard radiator. This way, it is also possible to heat the turbine components in cold climate conditions. Hot water from top layer of the reservoir can be used for supplying district heating and hot water systems, or to support agricultural applications such as greenhouse heating. Besides, in summer conditions, external heat pump be adapted to provide centralized cooling via reversible operation. Based on real measured wind data and real characteristics of wind turbines, the paper will analyze the conditions for supplying the microgrid with electrical and thermal energy. The economics of the proposed wind turbine concept and the energy efficiency of the entire system will be assessed.
No recording available for this poster.
