ASSESSMENT OF LANDFILL GAS LFG ENERGY POTENTIAL BASED ON ESTIMATES OF LFG MODELS
Articles > Article · 2016
Authors: Hasan SARPTAŞ
DEÜ Muhendislik Fakultesi Fen ve Muhendislik Dergisi, Refereed Journals of Other Institutions, International, TR DİZİN (ULAKBİM), 2016, vol 18, pp 491-491
DOI: 10.21205/deufmd.2016185416
Summary
<p>Methane emission from landfilling of waste is one of the most prevalent gas contributing to the greenhouse <br>effect. Current waste management strategies, aim to reduce methane emissions from landfills, promote energy <br>recovery from landfill gas (LFG) that is recognized as a renewable energy resource, due to its higher calorific <br>value. First and the most crucial stage in the planning and design of LFG collection and energy recovery systems <br>is to quantify LFG generation. It’s because, the quantity of LFG and its methane content determine both the <br>applicable method for the control and use of LFG and the feasibility of energy recovery. LFG models are <br>developed for the projection of LFG generation over time from a mass of landfilled waste. During planning and <br>projection phase of a landfill, the amount of gas that will be generated and recovered at the site can be estimated <br>– based on projected amounts of waste – by only using these models. Due to complex nature of LFG formation, <br>several models have been developed to model and estimate LFG generation with different approaches for regions <br>in different climates. In a LFG energy recovery project, selection of the appropriate modeling approach and its <br>model parameters for the estimation of LFG generation is the most crucial step. With considering this <br>requirement, this study aims to estimate the amount of LFG and its technical energy potential from the case <br>study landfill site (i.e. Harmandalı Landfill Site in İzmir Metropolitan City). According to the computations <br>carried out by Multi-phase model, it was determined that the remaining amount of LFG at the site was nearly <br>50% of total energy potential. Besides, maximum energy potential from LFG generated at the site was estimated <br>as 9.6 MW. This study indicates that LFG models can be utilized as effective tools in energy recovery projects.<br></p>