![](\"https:\/\/www.hds.bme.hu\/wp-content\/uploads\/2024_04_12_HDR_tanszek-158.webp\" "\\"2024_04_12_HDR_tanszek-158\\"")
<\/span><\/div><\/div><\/div><\/div><\/div>The research field of sonochemistry originates from the cavitation theory topic, which has a tradition of several decades at the Department. A special case of cavitation is when cavitation bubbles are created by high-intensity and high-frequency (20 kHz \u2013 1 MHz) ultrasound irradiation. This is called acoustic cavitation. During the radial pulsation of the bubbles, the internal temperature can reach several thousand kelvin, which induces chemical reactions. The phenomenon has numerous chemical applications: the degradation of toxic substances in wastewater treatment, the production of nano-metal particles or the synthesis of various organic and inorganic chemical substances. The research group aims at improving the energy efficiency of sonochemical reactors. <\/p>\n
One of the keys to reactor optimization is the creation of numerical simulations, including the programming of graphics cards (GPUs). The largest share of the performance of modern computer clusters and supercomputers is now provided by GPUs (Frontier: 98%, Komondor: 80%). Our research group does not only write codes specialized for sonochemistry, but also develops general-purpose ordinary and partial differential equation solvers.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Our research areas<\/h1><\/div><\/div><\/div>![](\"https:\/\/www.hds.bme.hu\/wp-content\/uploads\/sono1.webp\" "\\"sono1\\"")
<\/span><\/div><\/div><\/div>Improving energy efficiency in sonochemical applications<\/h4><\/div>Optimal operating strategies<\/h2><\/div>One of the biggest challenges of sonochemical reactors is to improve their energy efficiency so that they can be economically applied in industry. Our goal is to develop operating strategies that can significantly improve chemical yield with minimal energy investment. To do this, we use large-scale numerical optimization methods, taking advantage of the high computing power of GPUs. With this, we create detailed chemical simulations of the chemical activity of the bubbles.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Ultrasound dissipation<\/h4><\/div>Interaction between bubble cluster and acoustic wave<\/h2><\/div>Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>
<\/span><\/div><\/div><\/div>Improving energy efficiency in sonochemical applications<\/h4><\/div>Optimal operating strategies<\/h2><\/div>One of the biggest challenges of sonochemical reactors is to improve their energy efficiency so that they can be economically applied in industry. Our goal is to develop operating strategies that can significantly improve chemical yield with minimal energy investment. To do this, we use large-scale numerical optimization methods, taking advantage of the high computing power of GPUs. With this, we create detailed chemical simulations of the chemical activity of the bubbles.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Ultrasound dissipation<\/h4><\/div>Interaction between bubble cluster and acoustic wave<\/h2><\/div>Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>
Optimal operating strategies<\/h2><\/div>One of the biggest challenges of sonochemical reactors is to improve their energy efficiency so that they can be economically applied in industry. Our goal is to develop operating strategies that can significantly improve chemical yield with minimal energy investment. To do this, we use large-scale numerical optimization methods, taking advantage of the high computing power of GPUs. With this, we create detailed chemical simulations of the chemical activity of the bubbles.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Ultrasound dissipation<\/h4><\/div>Interaction between bubble cluster and acoustic wave<\/h2><\/div>Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>
One of the biggest challenges of sonochemical reactors is to improve their energy efficiency so that they can be economically applied in industry. Our goal is to develop operating strategies that can significantly improve chemical yield with minimal energy investment. To do this, we use large-scale numerical optimization methods, taking advantage of the high computing power of GPUs. With this, we create detailed chemical simulations of the chemical activity of the bubbles.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Ultrasound dissipation<\/h4><\/div>Interaction between bubble cluster and acoustic wave<\/h2><\/div>Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>
Interaction between bubble cluster and acoustic wave<\/h2><\/div>Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>
Homogeneous chemical activity is important in sonochemical reactors. Passing through a bubble cluster, ultrasound is scattered, and the intensity of the irradiation can also decrease due to the dissipation caused by the bubbles. In addition to developing optimal operating strategies, our further goal is to determine optimal bubble distributions: the optimal bubble radii and positions. To this end, we perform numerical simulations with the ALPACA multiphase flow simulation software package. The results provide detailed insight into the interaction of bubbles and the acoustic field.<\/p>\n<\/div><\/div><\/div>