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Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0741-z
Keywords: steam generator transfer tubes mobile robot dexterous structure task planning efficient inspection
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1317-1336 doi: 10.1007/s11709-021-0763-3
Keywords: square concrete filled tubes confine-stiffening confine-strengthening fractal cracking fracture
Nichole Boultbee, Oliver Robson, Serge Moalli, Rich Humphries
Engineering 2018, Volume 4, Issue 2, Pages 260-266 doi: 10.1016/j.eng.2017.09.003
The Upper Lillooet River Hydroelectric Project (ULHP) is a run-of-river power generation scheme located near Pemberton, British Columbia, Canada, consisting of two separate hydroelectric facilities (HEFs) with a combined capacity of 106.7 MW. These HEFs are owned by the Upper Lillooet River Power Limited Partnership and the Boulder Creek Power Limited Partnership, and civil and tunnel construction was completed by CRT-ebc. The Upper Lillooet River HEF includes the excavation of a 6 m wide by 5.5 m high and approximately 2500 m long tunnel along the Upper Lillooet River Valley. The project is in a mountainous area; severe restrictions imposed by weather conditions and the presence of sensitive wildlife species constrained the site operations in order to limit environmental impacts. The site is adjacent to the Mount Meager Volcanic Complex, the most recently active volcano in Western Canada. Tunneling conditions were very challenging, including a section through deposits associated with the most recent eruption from Mount Meager Volcanic Complex (~2360 years before the present). This tunnel section included welded breccia and unconsolidated deposits composed of loose pumice, organics (that represent an old forest floor), and till, before entering the underlying tonalite bedrock. The construction of this section of the tunnel required cover grouting, umbrella support, and excavation with a combination of roadheader, hydraulic hammer, and drilling-and-blasting method. This paper provides an overview of the project, a summary of the key design and construction schedule challenges, and a description of the successful excavation of the tunnel through deposits associated with the recent volcanic activity.
Keywords: Run-of-river hydro project Power tunnel Umbrella support Canopy tubes Volcanic deposits Pumice Roadheader
Alfred Kofi GAND, Tak-Ming CHAN, James Toby MOTTRAM
Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3, Pages 227-244 doi: 10.1007/s11709-013-0216-8
Keywords: reinforced polymer composites behaviour of FRPs tubular sections pultruded FRP tubular profiles FRP tubesin bridges applications of pultruded FRP tubes new-build with FRP tubes
New technique of precision necking for long tubes with variable wall thickness
Yongqiang GUO, Chunguo XU, Jingtao HAN, Zhengyu WANG
Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4, Pages 622-630 doi: 10.1007/s11465-019-0565-7
Keywords: extrusion rear axle necking coefficient temperature gradient
Numerical simulation on flow of ice slurry in horizontal straight tube
Shengchun LIU,Ming SONG,Ling HAO,Pengxiao WANG
Frontiers in Energy 2021, Volume 15, Issue 1, Pages 201-207 doi: 10.1007/s11708-017-0451-0
Keywords: ice slurry horizontal tubes numerical simulation pressure drop viscosity model
A new heat transfer correlation for supercritical fluids
Yanhua YANG, Xu CHENG, Shanfang HUANG
Frontiers in Energy 2009, Volume 3, Issue 2, Pages 226-232 doi: 10.1007/s11708-009-0022-0
Keywords: super critical fluids heat transfer circular tubes prediction method
Pore structure of cementitious material enhanced by graphitic nanomaterial: a critical review
S.A. GHAHARI, E. GHAFARI, L. ASSI
Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1, Pages 137-147 doi: 10.1007/s11709-017-0431-9
Keywords: carbon nano tubes microstructure porosity mercury intrusion porosimetry cement composite
The Post Occupancy Evaluation for the Auditorium of Shanghai Grand Theater
Li Daozeng,Xu Jin
Strategic Study of CAE 2001, Volume 3, Issue 1, Pages 15-21
Keywords: auditorium sight-line design noise level control acoustic design the removable sound canopy the alternative
Tubes with coated and sintered porous surface for highly efficient heat exchangers
Hong Xu, Yulin Dai, Honghai Cao, Jinglei Liu, Li Zhang, Mingjie Xu, Jun Cao, Peng Xu, Jianshu Liu
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3, Pages 367-375 doi: 10.1007/s11705-018-1703-1
Surface modification is a direct and effective way to enhance the efficiency of heat exchangers. Surface modification by forming a microporous coated layer can greatly enhance the boiling heat transfer and thus achieve a high performance. In this paper, we systematically investigate the boiling behavior on a plain surface with/without sintered microporous coatings of copper powder. The results demonstrated that the sintered surface has a better performance in nucleate boiling due to the increased nucleation sites. The superheat degree is lower and the bubble departure diameter is larger for the sintered surface than for the plain surface, so the heat can be carried away more efficiently on the sintered surface. In addition, the heat transfer capacity on the sintered surface depends on both the powder size and the coating thickness for a high flux tube. The optimum heat transfer capacity can be obtained when the thickness of the microporous coating layer is 3–5 times of the sintered powder diameter. As a result, the heat transfer coefficient tube can be up to 3 times higher for the tube with a sintered surface than that with a plain surface, showing a pronounced enhancement in heat transfer and a high potential in chemical engineering industry application.
Keywords: microporous coating layer surface modification boiling enhancement sintering
A study of spray granulation in vibrated fluidized bed with internal heating tubes
Xiaoheng PAN, Shichao YE, Zeguang ZHANG, Li ZHANG, Xuejun ZHU
Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 78-82 doi: 10.1007/s11705-009-0084-x
Keywords: vibrated fluidized bed immersed horizontal horizontal heating tubes spray granulation particle growth
Behaviors of recycled aggregate concrete-filled steel tubular columns under eccentric loadings
Vivian W. Y. TAM, Jianzhuang XIAO, Sheng LIU, Zixuan CHEN
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 628-639 doi: 10.1007/s11709-018-0501-7
Keywords: concrete filled steel tubes recycled aggregate concrete columns expansive agent eccentric load
Jia-yin SONG,Wen-long SONG,Jian-ping HUANG,Liang-kuan ZHU
Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8, Pages 741-749 doi: 10.1631/FITEE.1601169
Keywords: Fisheye lens Least squares method Image segmentation Ecology in image processing Hemispherical photography
Seismic performance of composite moment-resisting frames achieved with sustainable CFST members
A. SILVA,Y. JIANG,L. MACEDO,J. M. CASTRO,R. MONTEIRO,N. SILVESTRE
Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3, Pages 312-332 doi: 10.1007/s11709-016-0345-y
Keywords: concrete filled steel tubes rubberized concrete composite frames seismic performance assessment
Ke Zhang,Yunping Li,Zhongbo Yu,Tao Yang,Junzeng Xu,Lijun Chao,Jin Ni,Liutong Wang,Yun Gao,Yuzhong Hu,Zuoding Lin,
Engineering 2022, Volume 18, Issue 11, Pages 207-217 doi: 10.1016/j.eng.2021.08.026
Keywords: Water cycle Runoff generation Hydrological processes Hydrological scaling Soil moisture Groundwater Canopy
Title Author Date Type Operation
High-efficiency inspecting method for mobile robots based on task planning for heat transfer tubes in
Journal Article
Theoretical study on the confine-stiffening effect and fractal cracking of square concrete filled steel tubes
Journal Article
Upper Lillooet River Hydroelectric Project: The Challenges of Constructing a Power Tunnel for Run-of-River Hydro Projects in Mountainous British Columbia
Nichole Boultbee, Oliver Robson, Serge Moalli, Rich Humphries
Journal Article
Civil and structural engineering applications, recent trends, research and developments on pultruded fiber reinforced polymer closed sections: a review
Alfred Kofi GAND, Tak-Ming CHAN, James Toby MOTTRAM
Journal Article
New technique of precision necking for long tubes with variable wall thickness
Yongqiang GUO, Chunguo XU, Jingtao HAN, Zhengyu WANG
Journal Article
Numerical simulation on flow of ice slurry in horizontal straight tube
Shengchun LIU,Ming SONG,Ling HAO,Pengxiao WANG
Journal Article
A new heat transfer correlation for supercritical fluids
Yanhua YANG, Xu CHENG, Shanfang HUANG
Journal Article
Pore structure of cementitious material enhanced by graphitic nanomaterial: a critical review
S.A. GHAHARI, E. GHAFARI, L. ASSI
Journal Article
The Post Occupancy Evaluation for the Auditorium of Shanghai Grand Theater
Li Daozeng,Xu Jin
Journal Article
Tubes with coated and sintered porous surface for highly efficient heat exchangers
Hong Xu, Yulin Dai, Honghai Cao, Jinglei Liu, Li Zhang, Mingjie Xu, Jun Cao, Peng Xu, Jianshu Liu
Journal Article
A study of spray granulation in vibrated fluidized bed with internal heating tubes
Xiaoheng PAN, Shichao YE, Zeguang ZHANG, Li ZHANG, Xuejun ZHU
Journal Article
Behaviors of recycled aggregate concrete-filled steel tubular columns under eccentric loadings
Vivian W. Y. TAM, Jianzhuang XIAO, Sheng LIU, Zixuan CHEN
Journal Article
Segmentation and focus-point location based on boundary analysis in forest canopy hemispherical photography
Jia-yin SONG,Wen-long SONG,Jian-ping HUANG,Liang-kuan ZHU
Journal Article
Seismic performance of composite moment-resisting frames achieved with sustainable CFST members
A. SILVA,Y. JIANG,L. MACEDO,J. M. CASTRO,R. MONTEIRO,N. SILVESTRE
Journal Article