Characterization of thermal properties of municipal solid waste landfills

Faitli, József; Magyar, Tamás; Erdélyi, A; Murányi, Attila

doi:10.1016/j.wasman.2014.10.028

Cited by 56 publications

(32 citation statements)

References 16 publications

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“…where α is the thermal diffusivity k is the thermal conductivity c is the volumetric heat capacity A high thermal diffusivity means the material can change temperatures rapidly while a low value means that more time is required to observe a change in temperature. Faitli et al (2014) measured thermal conductivity and specific heat of MSW and concluded that landfills are capable of storing a large amount of heat. The study suggests that better understanding of the thermal properties of waste can improve the utilization of heat stored in landfills.…”

Section: Thermal Properties Of Wastementioning

confidence: 99%

“…Houi et al (1997) and Zanetti et al (1997) The specific heat within a landfill depends on the different materials in the waste and can be approximated based on the individual components found in the MSW (Hanson et al, 2008). Faitli et al (2014) recently developed laboratory testing on MSW from a landfill in Hungary and measured the specific heat to range from 900 J/kgK to 2100 J/kgK. In the literature, the specific heat value ranged from 719 J/kgK to 2360 J/kgK (Hanson et al, 2006;Yoshida et al, 1997).…”

Section: Specific Heatmentioning

confidence: 99%

“…Site data was later obtained from landfills in France providing better estimates of the thermal conductivity of the waste (0.6-0.8 W/mK) (Gholamifard et al, 2008). Thermal conductivity measured in a landfill in Hungary ranged from 0.24-1.15 W/mK (Faitli et al, 2014). Hanson et al (2000) conducted lab and field thermal conductivity probe experiments to determine thermal properties of MSW.…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…Conduction is the principle heat transfer mechanism within a soil (Neusinger et al, 2005). The thermal conductivity and specific heat capacity are important parameters required to determine the amount of conduction that occurs, and these parameters are strongly dependent on moisture content (Faitli et al, 2014;Neusinger et al, 2005).…”

Section: Conductionmentioning

confidence: 99%

“…The two main thermal parameters needed to simulate heat transfer in waste include the thermal conductivity and specific heat capacity. Estimates of these parameters in the literature are summarized in Houi et al (1997) 0.10 1,900 to 3,000 Yoshida et al (1997) 0.53 3,300 Zanetti et al (1997) 0.0445 2,200 Lefebvre et al (2000) 0.10 1,900 to 3,000 Hanson et al (2006) 0.30 719 Hanson et al (2008) 0.6 to 1.5 1,200 to 2,200 Rowe et al (2010) 0.35 to 0.96 1,940 to 2,360 Bonany et al (2013b) 0.67 1400 Faitli et al (2014) 0.24 to 1.15 900 to 2100…”

Section: Introductionmentioning

confidence: 99%

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Heat Transfer Model for an Engineered Landfill in Sainte-Sophie, Quebec, Canada

Megalla¹

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A conceptual and numerical heat transfer model was developed for a landfill gas to energy (LFGTE) facility in Ste. Sophie, Quebec. The operating LFGTE facility was instrumented with sensors to measure parameters affecting waste stabilization.Temperature data from the field was used to calibrate a heat transfer model to better understand the thermal processes and parameters. Waste was observed to stay frozen for up to 1.5 years when placed in thick layers during the winter. Detection of oxygen within the top 1 m of waste was directly correlated with temperature rises, indicating a heat source, likely aerobic biodegradation. In simulating the placement of five waste lifts over a five year period, aerobic digestion in the top 1 m generated 56% of the total heat generated. A brief sensitivity analysis was completed and the model was used to show the effect of waste sequencing on the vertical temperature profile over time.ii

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Section: Thermal Properties Of Wastementioning

confidence: 99%

Section: Specific Heatmentioning

confidence: 99%

Section: Thermal Conductivitymentioning

confidence: 99%

Section: Conductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heat Transfer Model for an Engineered Landfill in Sainte-Sophie, Quebec, Canada

Megalla¹

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Characterization and Measurement of Solid Waste

Kamaruddin

Norashiddin

Hanif

et al. 2021

Handbook of Environmental Engineering

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Assessment of frost and heating penetration in compacted clay layers of landfill top covers in temperate climate

Santa

Cola

Galgaro

2022

Bull Eng Geol Environ

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Compacted clay (CC) layers are commonly used as hydraulic barriers in landfills, thanks to their impervious capacity. However, mechanical and hydraulic properties of CC can be significantly affected by temperature variations due to the heat produced by waste degradation as well as to external air temperature and weathering. Previous experimental tests show that the most detrimental occurrence is the cyclic freezing–thawing (FT) that can increase the hydraulic conductivity of CC up to one order of magnitude. This paper aims at assessing the temperature distribution in a landfill multilayered top cover in several scenarios of temperature solicitations, in order to evaluate the depth of frost penetration. For this purpose, a 2D hydro-thermal coupled finite element model representing a case study landfill top cover has been developed; each constituting layer has been characterized by physical and thermal properties acquired through direct measurements on sampled materials in unfrozen and frozen conditions. The model provides a reliable time description of the isotherm distribution within the layered top cover in several temperature scenarios typical of a temperate climate, thus estimating the penetration of the frost front as well as of high temperatures.

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Characterization of thermal properties of municipal solid waste landfills

Cited by 56 publications

References 16 publications

Heat Transfer Model for an Engineered Landfill in Sainte-Sophie, Quebec, Canada

Heat Transfer Model for an Engineered Landfill in Sainte-Sophie, Quebec, Canada

Characterization and Measurement of Solid Waste

Assessment of frost and heating penetration in compacted clay layers of landfill top covers in temperate climate

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