“…They found that the bend is the weakest point in the overall structure and that the straight pipe is superior to the serpentine tube arrangement in terms of structural response. According to the summary of Bobes‐Jesus et al 99 with other researchers 98,100,101 showed that thermal conductivity > pipe spacing > pipe burial depth > pipe diameter > fluid velocity.…”
Section: Optimization Of Pavement Energy Harvesting Systemsmentioning
confidence: 99%
“…The conversion efficiency can reach 49% when the fluid flow rate is increased by 50% and the albedo rate is reduced by 50%, which is higher than the previous 42% efficiency. Zhou et al 98 studied the mechanical, thermal response of a serpentine pipe. They found that the bend is the weakest point in the overall structure and that the straight pipe is superior to the serpentine tube arrangement in terms of structural response.…”
Section: Optimization Of Pavement Energy Harvesting Systemsmentioning
Summary
Reducing the excessive use of fossil fuels and developing new sustainable energy sources are challenges and urgent issues people face today. Pavements are rich in thermal energy when exposed to the sun for long periods of time. Thermoelectric technology allows for the conversion of thermal and electrical energy from the temperature difference that exists between the pavement and the underground. Thermoelectric technology applied to pavements could not only harvest energy to power wireless sensors, LED lights or store it in supercapacitors, but also absorb the temperature of the pavement to reduce damage to the pavement. The review summarized previous pavement thermoelectric energy harvesting systems in the areas of the types, advantages and disadvantages, power generation, and economic benefits. Methods to improve the conversion efficiency of thermoelectric energy harvesting devices are discussed in detail, especially the optimization of the cold end, the external environment, and the structure. Starting from the properties of thermoelectric cementitious composites, the applications and future developments of thermoelectric cementitious composites are presented in more detail. The thermoelectric cementitious composites are grouped into thermoelectric pavement energy harvesting solid systems. Finally, the integrated use of thermoelectric generator and thermoelectric cementitious composites for road energy harvesting is proposed. The article provided directions and references for future research on thermoelectric technology in pavement energy harvesting.
“…They found that the bend is the weakest point in the overall structure and that the straight pipe is superior to the serpentine tube arrangement in terms of structural response. According to the summary of Bobes‐Jesus et al 99 with other researchers 98,100,101 showed that thermal conductivity > pipe spacing > pipe burial depth > pipe diameter > fluid velocity.…”
Section: Optimization Of Pavement Energy Harvesting Systemsmentioning
confidence: 99%
“…The conversion efficiency can reach 49% when the fluid flow rate is increased by 50% and the albedo rate is reduced by 50%, which is higher than the previous 42% efficiency. Zhou et al 98 studied the mechanical, thermal response of a serpentine pipe. They found that the bend is the weakest point in the overall structure and that the straight pipe is superior to the serpentine tube arrangement in terms of structural response.…”
Section: Optimization Of Pavement Energy Harvesting Systemsmentioning
Summary
Reducing the excessive use of fossil fuels and developing new sustainable energy sources are challenges and urgent issues people face today. Pavements are rich in thermal energy when exposed to the sun for long periods of time. Thermoelectric technology allows for the conversion of thermal and electrical energy from the temperature difference that exists between the pavement and the underground. Thermoelectric technology applied to pavements could not only harvest energy to power wireless sensors, LED lights or store it in supercapacitors, but also absorb the temperature of the pavement to reduce damage to the pavement. The review summarized previous pavement thermoelectric energy harvesting systems in the areas of the types, advantages and disadvantages, power generation, and economic benefits. Methods to improve the conversion efficiency of thermoelectric energy harvesting devices are discussed in detail, especially the optimization of the cold end, the external environment, and the structure. Starting from the properties of thermoelectric cementitious composites, the applications and future developments of thermoelectric cementitious composites are presented in more detail. The thermoelectric cementitious composites are grouped into thermoelectric pavement energy harvesting solid systems. Finally, the integrated use of thermoelectric generator and thermoelectric cementitious composites for road energy harvesting is proposed. The article provided directions and references for future research on thermoelectric technology in pavement energy harvesting.
“…Zhou et al., 2021 [ 125 ] performed a structural analysis of geothermal road pavement to study the effect of geothermal pipes on the structural responses of the road pavement. Three loading conditions were applied for this investigation: static vehicle load, temperature load, and coupled vehicle static and temperature loads.…”
Section: Structural Behavior Of the Geothermal Pavementmentioning
confidence: 99%
“…Figures 23 and 24 compare the bottom maximum tensile stress of the geothermal and traditional asphalt pavement under three different loading cases. Figure 23 Maximum tensile stress at the bottom of the geothermal and conventional pavement slabs (after Zhou et al., 2021 [ 125 ]). Figure 24 Structural response of conventional and geothermal asphalt pavement slabs.…”
Section: Structural Behavior Of the Geothermal Pavementmentioning
confidence: 99%
“…[a] Under Vehicle load [b] Under thermal load. [c] Under Coupling mechanical-thermal loads (after Zhou et al., 2021 [ 125 ]). …”
Section: Structural Behavior Of the Geothermal Pavementmentioning
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