 Hi, I'm Ben-Sing Wu, a CFD engineer from Philadelphia Machine Solutions. I would like to introduce to you the CFD methodology used to solve integration of mixing heat transfer and biochemical reaction kinetics in analogical methane fermentation, which has been published in biotechnology and bioengineering. Here we are at Stolygon Dairy Farm, Lancaster, Pennsylvania. We are going to show you how to convert calcium anode to biomethane after an orophic digestion. The manure comes from the barn via alley scraper down to the store end and the end of this gutter. And then there, gravity flows down to the mixing tank before it's pumped into the methane digest. This is the digestion tank with 150,000 gallons of liquid manure. And another 150,000 gallons of liquid manure is processing at a powerful digestion completely below the ground. The hydraulic retention time is 20 days. Stolygon has the capacity to hold 4 million gallons of liquid manure. And it takes about 8 months before the liquid manure is taken out to the field. Here we are in Dairy Township Municipal Authority, Percy, Pennsylvania. The digest behind me used two treated sludge, which consists of waste sludge from biological system, primarily sludge from wastewater and industrial sludge. For example, from Hersey Chocolate Company. This is the pumping room in the lower section of the digestion tank. Inside this room, we can find the mixing, heating, in-front and out-front pipes. After the cleaning of biogas, one third of biogas goes to the boiler room to produce heat for maintaining the digestion temperature. And two third of biogas goes to the visual engine to generate electricity for the facility inside this wastewater treatment tank. The integrated model includes physical process and biological process. In the physical process, it covers mixing and heat transfer. In the biological process, it covers hydrolysis, acetylgenesis, acetylgenesis, and methanogenesis. In the CFD simulation, each computational cell represents an individual bioregator. Then mixing and heat transfer are solved simultaneously at each cell. This slide shows velocity vectors and controls of temperature. Based on the converged flow field, the local resident time can be achieved by solving a scalar transport equation. Once obtaining temperature and local resident time, the transient biological process can be solved. The results include four types of bacteria. Eight biological parameters and eight ionic compounds. In summary, the CFD simulation platform is generic and can be used to simulate biohydrogen fermentation and other bioenergy resources. Thank you for your time. For further information on this topic, please refer to the paper published in Biotechnology and Bioengineering.