High efficient waste-to-energy in Amsterdam: getting ready for the next steps

Area of Science:

• * Energy Engineering
• * Environmental Technology
• * Combustion Science

Background:

• * Traditional waste-to-energy (WtE) plants prioritize waste disposal and economy.
• * The HoogRendement Centrale (HRC) block in Amsterdam was designed for maximum energy output, achieving over 30% subsidy efficiency.
• * Further improvements in efficiency and cost reduction are possible through operational adjustments.

Purpose of the Study:

• * To investigate methods for increasing the efficiency and throughput of the HRC WtE plant.
• * To predict the impact of raising steam temperature to 480°C and increasing plant load by 10%.
• * To ensure safe and effective implementation of these upgrades by understanding boiler heat transfer dynamics.

Main Methods:

• * Integration of measured data from suction and acoustic pyrometers to map temperature distribution.
• * Utilization of computational fluid dynamics (CFD) modeling to simulate heat transfer changes.
• * Prediction of vertical temperature distribution and heat transfer alterations in boiler passes.

Main Results:

• * The study successfully predicted increased heat transfer in the first and second boiler passes due to a 100°C temperature rise for increased load.
• * CFD modeling provided crucial insights into boiler performance under elevated operating conditions.
• * The findings support the feasibility of increasing steam temperature and plant throughput.

Conclusions:

• * Combining CFD modeling with pyrometer data is an effective strategy for optimizing WtE plant operations.
• * The HRC plant has potential for further enhancements in energy efficiency and economic performance.
• * Operational adjustments, including increased steam temperature and load, can be safely implemented with proper preparation.