Research Of NYL45A Biomass Combustion Furnace

China has more than900million farmers. They mainly take crop residues andfirewood as fuel to burning directly by kang and stove.These disadvantages is the lowerenergy conversion efficiency,the high fuel consumption,low intensity burning,weak firepower and not self-sustained,stable combustion heating.It is important toresearch a new biomass combustion furnace for farm to solve these problem.(1)Based on the existing biomass combustion furnaces to design a new newbiomass burning furnace including in device's size, power and heat supply,On thebasis of traditional burners,improving the structure of feeding device,burner,and heatexchanger.then,establishing the biomass combustion furnaces's modeling bySolidwors software and test whether the burner structure is reasonable or not,ensurethat there is no interference between the internal structure.(2)Making combustion parameter optimization follow the product's thermalperformance requirements and principle of combustion to calculate the optimalmatching data such as the feeding speed,ventilation rate,combustion temperature.Itmake the burner not only full burning but also save fuel to achieve environmental andeconomic's optimization.(3)Making heat transfer optimization,analysis the thermal feature of the heatexchanger in the biomass combustion furnace by using the finite elementsoftware.Simulating the working process of various structure of heat exchanger andcompare their heat transfer performance.To determine the major factors that impactheat exchanger performance and to optimize the biomass combustion furnaceAccording to the analysis's result(burner's temperature field,fluid flow field,pressurefield).it makes burner have lower energy consumption, higher thermal efficiency.(4)Manufacturing the burner according to the optimized design into a physicalburner and compared the field experiment's results with the results of theoreticalanalysis.Indicating that the theoretical data is real and effective.The burner's performance of feeding, combustion, heat transfer is overallimprovement through optimal design in the paper. Feeding is more uniform, burningis more fully, and greatly improve the efficiency of heat transfer.