Analysis and Optimal Design of a Producer Gas Carburetor

Design of a carburetor for producer gas application with special reference for reduced loss of pressure is taken up to generate the optimal fuel–air mixture to meet different load conditions of the engine as well as for varying operating conditions of producer gas reactor. The differential pressure controller based carburetor includes an optimally designed mixing chamber with tuned orifices to get stable stoichiometric mixture working at near–to–ambient conditions. The hardware built has been tested for an engine simulation of 25 kWe capacity.

The carburetor design has been studied comprehensively with detailed analysis for its mixing and operations with CFD modeling. The CFD simulations and the experiments carried out are used with their results to complement each other in optimising the design and to validate the analysis at the all stages. The results show a consistency in the experimental data and the CFD modeling that has provided a better insight of the flow details and has allowed for carrying out the optimization to a great extent, and to get a good mixing. Figures included give out a highlight of the relevant data of the analysis.