A recent study led by R. S. Ignatovich from the Belarusian National Technical University explores the potential for optimizing mini-Cogeneration Heat and Power Plants (mini-CHPs) using local fuels in Belarus. This research comes at a time when the country faces a surplus of electricity generation capacity, primarily reliant on imported energy sources like natural gas and nuclear fuel.
The paper, published in “News of Higher Educational Institutions and Energy of the CIS,” emphasizes the need to tailor the operation of mini-CHPs based on whether they are existing facilities or newly constructed ones. For existing plants, Ignatovich suggests that operators should consider two main strategies: aligning the heating unit’s operation with either electrical or thermal load schedules. This approach requires energy storage solutions to manage daily consumption effectively.
For new constructions, the focus shifts to maximizing the hours of rated power use, which could enhance the economic viability of these plants. The study also suggests that transitioning to multi-generation technologies could further improve the attractiveness of mini-CHPs, making them a more appealing option in Belarus’s energy landscape.
One of the most intriguing aspects of this research is the exploration of energy storage technologies, particularly the use of hydrogen as an intermediate energy carrier. Ignatovich highlights the potential of an alkaline electrolysis module for hydrogen production, which could utilize excess electrical energy generated by mini-CHPs during off-peak hours. “To utilize the excess electrical energy consumption from a mini-CHP with a heating ORC unit during the daily dips, a structural diagram configuration using an alkaline electrolysis module for hydrogen production is proposed,” he stated in the study.
The analysis also includes a review of commercially available energy storage technologies, with a focus on two key methods: electrochemical batteries and hydrogen storage. These technologies could significantly enhance the efficiency and sustainability of mini-CHPs, offering new revenue streams and operational flexibility for energy providers.
Additionally, the research examines the performance of the ORC-installation Turboden 14 CHP, which operates within the mini-CHP framework. The findings indicate that this installation can function effectively across a wide range of load changes, underscoring its versatility. However, the study also points out the need for further investigation into heat load trends to improve forecasting models, which could be crucial for optimizing energy production and consumption.
The implications of this research are significant for the Belarusian energy sector, particularly as the country seeks to reduce its dependence on imported fuels and leverage local resources. By optimizing mini-CHPs and integrating advanced energy storage solutions, Belarus could enhance its energy security while also tapping into emerging markets for hydrogen and renewable energy technologies.
