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Characteristics and application of road absorbing solar energy

Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 525-534 doi: 10.1007/s11708-013-0278-2

Abstract: If the heat of road surface can be stored in summer, the road surface temperature will be decreased toThe results showed that the road surface temperature was mainly affected by solar radiation, but theThe temperature of the solar road surface was 3°C–6°C lower than that of the ordinary road surface.The average solar collector efficiency of the system was 14.4%, and the average solar absorptivity ofroad surface was 36%.

Keywords： solar energy     road-solar energy system     road surface temperature     solar absorptivity of road surface     solar    

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Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 256-260 doi: 10.1007/s11705-007-0046-0

Abstract: A new method of preparing CuO solar selective absorbing coating for medium temperature is presented.The effects of reactant concentration, reaction temperature and reaction time on the absorptivity ofcoating is more heat-resistant, acid-resistant, and wear resistant than CuO coating, without losing absorptivity

Keywords： photoelectron spectroscopy     temperature     pretreatment     absorptivity     microscopy    

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Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 480-492 doi: 10.1007/s11708-017-0506-2

Abstract: This paper investigated radiation heat transfer and temperature distributions of solar thermochemicalDifferent parameters including absorptivity, emissivity, reflection based radiation scattering, and carrierby the boundary radiation heat loss should not be neglected for the thermal performance analysis of solar

Keywords： solar thermochemical reactor     incident radiation flux     temperature distribution     radiation absorptivity    

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An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different

Yang WANG, Baoming LI

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 478-489 doi: 10.15302/J-FASE-2019289

Abstract: This study was designed to optimize the degree-day calculation and proposes a solar-air degree-day methodIn this paper, the solar-air degree-day method was proposed, which considers the effects of solar radiationwith different wall orientations and surface colors.Orientation and surface color effects on energy consumption need to be considered, and external wallsof different orientations should have different surface colors.

Keywords： base temperature     energy consumption     solar radiation     orientation     surface color    

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Dimethicone-aided laser cutting of solar rolled glass

Wenyuan LI, Guojun ZHANG, Long CHEN, Yu HUANG, Youmin RONG, Zhangrui GAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 111-121 doi: 10.1007/s11465-020-0615-1

Abstract: Solar rolled glass, with one micro-structure surface and another roughness surface, can cause diffuseIn this study, laser cutting of solar rolled glass with a thickness of 2.5 mm was successfully achievedreached; afterward, the surface quality decreased or directly caused the cutting to fail.The minimum surface roughness (3.26 µm) of the processed surface (chipping: Width≤113.64 µm, area 215199processed surface were small.

Keywords： laser cutting     solar rolled glass     dimethicone     viscosity     surface quality    

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Analysis and comparison of laser cutting performance of solar float glass with different scanning modes

Wenyuan LI, Yu HUANG, Youmin RONG, Long CHEN, Guojun ZHANG, Zhangrui GAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 97-110 doi: 10.1007/s11465-020-0600-8

Abstract: These modes can achieve high-performance hole cutting of thick solar float glass using a 532-nm nanosecondThis parameter combination reduces the chipping area and sidewall surface roughness by 8.8% and 9.6%The analyses of surface topography, white spots, microstructures, and sidewall surface element compositionstudy concluded that the concentric circle scanning mode shows evident advantages in the performance of solar

Keywords： laser cutting     solar float glass     scanning mode     surface quality     cutting efficiency    

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A spectrally selective surface structure for combined photothermic conversion and radiative sky cooling

Bin ZHAO, Xianze AO, Nuo CHEN, Qingdong XUAN, Mingke HU, Gang PEI

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 882-888 doi: 10.1007/s11708-020-0694-z

Abstract: In this paper, a spectrally selective surface structure that has a planar polydimethylsiloxane layercovering a solar absorber is conceptually proposed and optically designed for the combination of photothermicAn optical simulation is conducted whose result shows that the designed surface structure (i.e., PT-RCsurface structure) has a strong solar absorption coefficient of 0.92 and simultaneously emits as a mid-infraredA thermal analysis prediction reveals that the designed PT-RC surface structure can be heated to 79.1

Keywords： solar energy     photothermic conversion     radiative sky cooling     spectral selectivity     multilayer film    

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stack as front heterojunction structure on performance of interdigitated back contact-heterojunction solar

Rui JIA,Ke TAO,Qiang LI,Xiaowan DAI,Hengchao SUN,Yun SUN,Zhi JIN,Xinyu LIU

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 96-104 doi: 10.1007/s11708-016-0434-6

Abstract: Interdigitated back contact-heterojunction (IBC-HJ) solar cells can have a conversion efficiency of overHowever, the front surface passivation and structure have a great influence on the properties of theIBC-HJ solar cell.of IBC-HJ solar cells.Without FSF, the IBC-HJ solar cells may become more sensitive to interface defect density.

Keywords： amorphous silicon     front surface field     simulations     interdigitated back contact-heterojunction solar cells    

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High-quality industrial n-type silicon wafers with an efficiency of over 23% for Si heterojunction solar

Fanying MENG,Jinning LIU,Leilei SHEN,Jianhua SHI,Anjun HAN,Liping ZHANG,Yucheng LIU,Jian YU,Junkai ZHANG,Rui ZHOU,Zhengxin LIU

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 78-84 doi: 10.1007/s11708-016-0435-5

Abstract: carrier lifetime and higher tolerance of certain metal contamination can offer one of the best Si-based solarIn this study, Si heterojuction (SHJ) solar cells which was fabricated with different wafers in the topeffectively converting the sunlight into electrical power, the pyramid size, pyramid density and roughness of surfaceFurthermore, the dependence of SHJ solar cell open-circuit voltage on the surface topography was discussed, which indicated that the uniformity of surface pyramid helps to improve the open-circuit voltage and

Keywords： n-type Cz-Si     thinner wafer     surface texture     high efficiency     SHJ solar cell    

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Development and road performance of clear asphalt with high transparency and adhesion

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 238-255 doi: 10.1007/s11709-022-0898-x

Abstract: Clear asphalt (CA) currently used in light-colored asphalt mixtures (LCAM) exhibits poor transparency and adhesion. Therefore, a highly transparent CA (HCA) modified using a silane coupling agent (KH550) was prepared. Furthermore, LCAM was prepared by mixing CA and limestone aggregates. The properties of the HCA and ordinary CA (OCA) were characterized using conventional asphalt tests, optical tests, pull-off tests, ultraviolet aging tests, dynamic shear rheometry, Fourier-transform infrared spectroscopy, differential scanning calorimetry, and scanning electron microscopy. Whereas Marshall, moisture resistance, wheel tracking, trabecular bending, and British pendulum tests were employed for the LCAM. The transmittance and spectral reflectance of the HCA were 123.30 and 3.74 times greater than those of the OCA, respectively. The complex modulus and viscosity-aging index of the HCA were 48% and 53% less than those of the OCA, respectively. After modification with KH550, the Marshall stability ratio, tensile strength ratio, and flexural strain of the HCA-prepared LCAM increased by 12.92%, 25.06%, and 23.90%, respectively. However, the rutting resistance of the HCA-prepared LCAM was 14.3% less than that of the OCA-prepared LCAM. The comprehensive performances of the HCA and HCA-prepared LCAM were 49.2% and 10.3% greater than those of the OCA and OCA-prepared LCAM, respectively, indicating a high application value in the future.

Keywords： light-colored asphalt pavement     orthogonal test     road performance     spectral reflectance     silane-coupling    

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Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 385-387 doi: 10.15302/J-FEM-2017110

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Rational Understanding about Renaissance Path of China's Road and Bridge Engineering

Mao-run Feng,Zheng-song Zhao

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 42-51 doi: 10.15302/J-FEM-2014013

Abstract: At the turn of this century, China began the largest road and bridge development in the world, whichSurveying the development of world transportation, and comparing the road and bridge construction effortsaction to build up a transportation network; demand and innovation are the driving forces to upgrade roadefficiency, expose all construction practices that violate scientific law, overall management defects in road

Keywords： road network     expressway     bridge project     technological innovation     construction management     social management    

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Quantification of emission variability for off-road equipment in China based on real-world measurements

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1455-x

Abstract:

• Emissions from 53 in-use diesel-fueled off-road equipment were measured

Keywords： Off-road equipment     Portable emission measurement system (PEMS)     Real-world emissions     Diesel engine    

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“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 304-307 doi: 10.1007/s42524-019-0079-3

Abstract: Xiaobo WANG. [J]. Front. Eng, 2019, 6(1): 131-137.Peter REDFERN, Hua ZHONG. [J]. Front. Eng, 2017, 4(2): 193-200.Qixiang FAN. [J]. Front. Eng, 2017, 4(2): 231-237.Ming-zhou Liu,Cong-hu Liu,Mao-gen Ge,Yuan Zhang,Qing-hua Zhu. [J]. Front. Eng, 2016, 3(2): 144-146.Yu Zhao,Sheng-quan Wang,Ke-chao Zhu. [J]. Front. Eng, 2015, 2(1): 35-38.Ru-gui Chen,Jia-meng Chen. [J]. Front. Eng, 2014, 1(1): 52-61.An Wang. [J]. Front. Eng, 2014, 1(1): 13-17.

Keywords： permafrost protection     sustainable development     health guarantee system    

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Nondestructive Testing Method to Assess and Detect Road Performance

Guo Chengchao,Xu Pengfei and Zhong Yanhui

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 72-79 doi: 10.15302/J-SSCAE-2017.06.011

Abstract: As such, it is essential to implement rapid and effective management measures to ensure road safety,In this paper, five nondestructive road testing methods and their associated testing equipment are introducedground penetrating radar, macro texture depth, international roughness index, and spectral analysis of surfacewithout traffic closures, likely provide a new approach for establishing a high-efficiency intelligent roadnetwork monitoring system, and will provide a practical and feasible method for sustainable road development

Keywords： road detection     road defects     nondestructive testing    

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Title Author Date Type Operation

Characteristics and application of road absorbing solar energy

Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO

Journal Article

Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Journal Article

Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Journal Article

An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different

Yang WANG, Baoming LI

Journal Article

Dimethicone-aided laser cutting of solar rolled glass

Wenyuan LI, Guojun ZHANG, Long CHEN, Yu HUANG, Youmin RONG, Zhangrui GAO

Journal Article

Analysis and comparison of laser cutting performance of solar float glass with different scanning modes

Wenyuan LI, Yu HUANG, Youmin RONG, Long CHEN, Guojun ZHANG, Zhangrui GAO

Journal Article

A spectrally selective surface structure for combined photothermic conversion and radiative sky cooling

Bin ZHAO, Xianze AO, Nuo CHEN, Qingdong XUAN, Mingke HU, Gang PEI

Journal Article

stack as front heterojunction structure on performance of interdigitated back contact-heterojunction solar

Rui JIA,Ke TAO,Qiang LI,Xiaowan DAI,Hengchao SUN,Yun SUN,Zhi JIN,Xinyu LIU

Journal Article

High-quality industrial n-type silicon wafers with an efficiency of over 23% for Si heterojunction solar

Fanying MENG,Jinning LIU,Leilei SHEN,Jianhua SHI,Anjun HAN,Liping ZHANG,Yucheng LIU,Jian YU,Junkai ZHANG,Rui ZHOU,Zhengxin LIU

Journal Article

Development and road performance of clear asphalt with high transparency and adhesion

Journal Article

Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Journal Article

Rational Understanding about Renaissance Path of China's Road and Bridge Engineering

Mao-run Feng,Zheng-song Zhao

Journal Article

Quantification of emission variability for off-road equipment in China based on real-world measurements

Journal Article

“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Journal Article

Nondestructive Testing Method to Assess and Detect Road Performance

Guo Chengchao,Xu Pengfei and Zhong Yanhui

Journal Article