PMID- 35194079
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220226
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 12
IP  - 1
DP  - 2022 Feb 22
TI  - Simulation of heat transfer in a landfill with layered new and old municipal 
      solid waste.
PG  - 2970
LID - 10.1038/s41598-022-06722-6 [doi]
LID - 2970
AB  - Due to rapid degradation of the newly filled municipal solid waste (MSW), the 
      local temperature of the waste layer increases greatly. The mechanical parameters 
      related to waste degradation and the deformation of high-density polyethylene 
      (HDPE) pipes in the waste body will be affected by the elevated temperature. To 
      predict the temperature distribution in the anaerobic landfill, a one-dimensional 
      heat transfer model is established in this study. This model considers the 
      stratification of the saturated and unsaturated zones, and the layering of new 
      and old waste. Furthermore, a single peak model for heat production is applied as 
      the source term of heat production. The stratification of the unsaturated and 
      saturated zones is considered by distinguishing the difference in heat 
      conductivity and specific heat capacity. The layering of the new and old waste 
      layers is considered by distinguishing the difference in the length of time that 
      waste has been degraded to produce heat. Based on the numerical calculation 
      method, the temperature distribution in a landfill with layered new and old MSW 
      is well simulated. The position where the maximum temperature occurs and the 
      variation in the temperature at the edge of new and old waste are elucidated. The 
      sensitivity analysis shows that the influence of the density on the temperature 
      distribution is more significant. Besides, the stratification of 
      saturated-unsaturated waste should also be considered in landfills.
CI  - (c) 2022. The Author(s).
FAU - Zhang, Tao
AU  - Zhang T
AUID- ORCID: 0000-0003-2981-0990
AD  - School of Civil Engineering and Architecture, Nanchang Hangkong University, 
      Nanchang, 330063, China. taozhanggeo@outlook.com.
FAU - Shi, Jianyong
AU  - Shi J
AD  - Geotechnical Engineering Research Institute, Hohai University, Nanjing, 210098, 
      China.
AD  - Key Laboratory of Ministry of Education for Geomechanics and Embankment 
      Engineering, Hohai University, Nanjing, 210098, China.
FAU - Wu, Xun
AU  - Wu X
AD  - Geotechnical Engineering Research Institute, Hohai University, Nanjing, 210098, 
      China.
AD  - Key Laboratory of Ministry of Education for Geomechanics and Embankment 
      Engineering, Hohai University, Nanjing, 210098, China.
FAU - Shu, Shi
AU  - Shu S
AD  - Geotechnical Engineering Research Institute, Hohai University, Nanjing, 210098, 
      China.
AD  - Key Laboratory of Ministry of Education for Geomechanics and Embankment 
      Engineering, Hohai University, Nanjing, 210098, China.
FAU - Lin, Hai
AU  - Lin H
AD  - School of Civil Engineering and Architecture, Nanchang University, Nanchang, 
      330031, China.
LA  - eng
GR  - 42002286/National Natural Science Foundation of China/
GR  - 41877222/National Natural Science Foundation of China/
GR  - 42002288/National Natural Science Foundation of China/
GR  - 42007253/National Natural Science Foundation of China/
GR  - 42062018/National Natural Science Foundation of China/
GR  - EA201911397/Doctoral Start-up Foundation of Nanchang Hangkong University/
PT  - Journal Article
DEP - 20220222
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
PMC - PMC8863833
COIS- The authors declare no competing interests.
EDAT- 2022/02/24 06:00
MHDA- 2022/02/24 06:01
PMCR- 2022/02/22
CRDT- 2022/02/23 05:32
PHST- 2021/12/07 00:00 [received]
PHST- 2022/02/01 00:00 [accepted]
PHST- 2022/02/23 05:32 [entrez]
PHST- 2022/02/24 06:00 [pubmed]
PHST- 2022/02/24 06:01 [medline]
PHST- 2022/02/22 00:00 [pmc-release]
AID - 10.1038/s41598-022-06722-6 [pii]
AID - 6722 [pii]
AID - 10.1038/s41598-022-06722-6 [doi]
PST - epublish
SO  - Sci Rep. 2022 Feb 22;12(1):2970. doi: 10.1038/s41598-022-06722-6.