摘要:Rising use of renewable energy sources has brought many new challenges and use of many unusual energy resources. These resources are often of lower quality, a by-product or simple waste. Landfill gas is one of resources with lower quality and unwanted elements, as sulphur derivatives. After chemical or another treatment, the gas can be used in any burning facility. This article presents numerical model, which deals with simulation of enrichment process for landfill gas and subsequent use in heat source, with simple gas burner. The final gas is simulated as gas mixture, with different components portions.