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| 1 | Optimizing the solar energy capture of residential roof design in the southern hemisphere through Evolutionary Algorithm显示文摘Australia’s national energy system is heavily reliant on coal-fired power plants and requires quick action to de-crease CO_(2)emissions in order to meet the Paris climate change agreement by 2030.As a good alternative to coal power,renewable resources can produce the required energy for Australia while keeping the environment clean.The annual amount of falling solar irradiation in Australia is a few thousand times higher than its energy consumption,but the amount of the collected solar energy is unsatisfactory.In Perth,the sunniest city in Aus-tralia,one-third of the residential dwellings have roof-mounted solar collector systems.However,there have been limited studies into the integration of these systems in building design and it is still unknown which roof design can deliver maximum efficiency based on the local environmental conditions.Therefore,the aims of this study are to determine the optimum residential roof design in Perth,Western Australia and to maximise extracted solar power throughout a year.To reach this aim,a combination of analytical modelling,numerical simulation,and evolutionary algorithm methods have been selected.At first,a series of detailed mathematical calculations were performed in Excel to find the optimum solar collector mounting settings.In the numerical simulation,the exam-ination was repeated in the Rhino-Grasshopper interface to verify the earlier findings and calibrate the chosen simulation package with the help of parametric architecture.In the last step,a wide range of housing roof shapes has been tested by evolutionary algorithm plugin-Galapagos,to find the optimum roof shape design in the given context.Our results show that,unlike the traditional approach and common belief,a roof shape with a 25-degree tilt angle,170-175 azimuth angle,and aspect ratio of 1:1.2 is optimum to gain maximum solar gaining annually.Moreover,this study advances the knowledge of solar capturing by suggesting a new parameter-oblique angle-in finding the optimum roof shape design.After evaluating the importance of the mentioned factors,it is found that,after tilt angle,the oblique angle is the most effective parameter in rooftop solar gaining,higher than roof aspect ratio and azimuth angle.In conclusion,our results demonstrate that an‘oblique shed roof design’can generate 15.7%higher solar radiation compared to the base case.The findings of this study can be applied by architects,construction companies,and householders to optimize the solar gaining in the future of the residential building in Perth. | Saleh Kaji Esfahani Ali Karrech Robert Cameron Mohamed Elchalakani Rosangela Tenorio Fernando Jerez | 2021 | Energy and Built Environment2021，2，4： | 1 |
| 2 | Modelling of unstiffened flush end-plate bolted connections in fire 显示文摘 | A1-Jabri K S Seibi A Karrech A | 2006 | Journal of Constructional Steel Research2006，62，12： | 1 |
| 3 | Simulation of Solid Tubular Expansion in Well Drilling Using Finite Element Method 显示文摘 | PERVEZ T SEIBI A C KARRECH A | 2005 | Petroleum Science and Technology2005，23，7： | 1 |
| 4 | Modeling of deformation around magmatic intrusions with ap- plication to gold-related structures in the Yilgarn Cra- ton, Western Australia显示文摘 | Zhang Y Karrech A Schaubs P M | 2012 | Tectonophysics2012，，： | 1 |
| 5 | Analytical Model for the Expan- sion of Tubes Under Tension显示文摘 | Karrech A Seibi A | 2010 | Journal of Materials Processing Technology2010，210，： | 1 |
| 6 | Simulation of Solid Lubular Expansion in Well Drilling Using Finite Element Method显示文摘 | PERVEZ T SEIBI A C KARRECH A | 2005 | Petroleum Science And Technology2005，23，02： | 1 |
| 7 | Modelling of Unstiffened Flush End-plate Bolted Connections in Fire 显示文摘 | Al-Jabri K S Seibi A Karrech A | 2006 | Journal of Constructional Steel Research2006，62，： | 1 |
| 8 | Analytical model for the ex- pansion of tubes under tension 显示文摘 | KARRECH A SEIBI A | 2010 | Journal of Materials Processing Technology2010，210，2： | 1 |
| 9 | Simulation of solid tubular expansion in well drilling using finite element method 显示文摘 | PERVEZ T SEIBI A C KARRECH A | 2005 | Petroleum Science and Technolo- gy2005，23，7： | 1 |
| 10 | Free vibra- tion analysis of a cracked shear deformable beam on a two-parameter elastic foundation using a lattice spring model显示文摘 | Attar M Karrech A Regenauer-Lieb K | 2014 | Journal of Sound and Vibration2014，333，11： | 1 |
| 11 | Modelling of unstiffened flush end-plate bolted connections in fire显示文摘 | Seibi A Karrech A | 2006 | Journal of Constructional Steel Research2006，62，12： | 1 |
| 12 | A computational procedure for the prediction of settlement in granular materials under cyclic loading显示文摘 | A. Karrech D. Duhamel G. Bonnet J.N. Roux F. Chevoir J. Canou J.C. Dupla K. Sab | 2007 | Computer Methods in Applied Mechanics and Engineering2007，，1： | 1 |
| 13 | A computa- tional procedure for the prediction of settlement in granular materials under cyclic loading显示文摘 | Karrech A Duhamel D Bonnet G | 2007 | Computer methods in applied mechanics and engineering2007，197，1： | 1 |
| 14 | Modeling and Simulation of Dynamic Unloading of Prestressed Rockmass显示文摘During the excavation of deep rock,a sudden change in boundary conditions will cause the in-situ stress on the excavation surface to release instantaneously.This disturbance propagates in the form of an unloading stress wave,which will enlarge the damage field of surrounding rock.In this paper,the dynamic unloading problem of the insitu stress in deep rock excavation is studied using theoretical,numerical,and experimental methods.First,the dynamic unloading process of rock is analyzed through adopting the wave equation,and the equivalent viscous damping coefficient of the material is taken into consideration.Calculations show that there is significant tensile strain in the rock bar when the strain rate is above 10^-1 s^-1.With an increase in the length or damping coefficient,the wave state will change from an underdamped to an overdamped state.Second,implicit and explicit solvers of the finite element method are employed to simulate rock unloading processes,which can be used to verify the theoretical results from one-dimensional to three-dimensional stress states.Finally,the dynamic unloading experiment of a onedimensional bar is used to further verify the validity and accuracy of the theoretical analysis. | Liang Wu Xiaorui Xiang Yang Chen Karrech Ali Junru Zhou Ming Chen | 2019 | Computer Modeling in Engineering & Sciences2019，，8： | 0 |
| 15 | Deep Geothermal: The ‘Moon Landing' Mission in the Unconventional Energy and Minerals Space显示文摘Deep geothermal from the hot crystalline basement has remained an unsolved frontier for the geothermal industry for the past 30 years. This poses the challenge for developing a new unconventional geomechanics approach to stimulate such reservoirs. While a number of new unconventional brittle techniques are still available to improve stimulation on short time scales,the astonishing richness of failure modes of longer time scales in hot rocks has so far been overlooked. These failure modes represent a series of microscopic processes: brittle microfracturing prevails at low temperatures and fairly high deviatoric stresses,while upon increasing temperature and decreasing applied stress or longer time scales,the failure modes switch to transgranular and intergranular creep fractures. Accordingly,fluids play an active role and create their own pathways through facilitating shear localization by a process of time-dependent dissolution and precipitation creep,rather than being a passive constituent by simply following brittle fractures that are generated inside a shear zone caused by other localization mechanisms. We lay out a new theoretical approach for the design of new strategies to utilize,enhance and maintain the natural permeability in the deeper and hotter domain of geothermal reservoirs. The advantage of the approach is that,rather than engineering an entirely new EGS reservoir,we acknowledge a suite of creep-assisted geological processes that are driven by the current tectonic stress field. Such processes are particularly supported by higher temperatures potentially allowing in the future to target commercially viable combinations of temperatures and flow rates. | Klaus Regenauer-Lieb Andrew Bunger Hui Tong Chua Arcady Dyskin Florian Fusseis Oliver Gaede Rob Jeffrey Ali Karrech Thomas Kohl Jie Liu Vladimir Lyakhovsky Elena Pasternak Robert Podgorney Thomas Poulet Sheik Rahman Christoph Schrank Mike Trefry Manolis Veveakis Bisheng Wu David A.Yuen Florian Wellmann Xi Zhang | 2015 | Journal of Earth Science2015，26，1： | 0 |
| 16 | Exploring the frontiers of deep underground sciences and engineering—China Yunlong Lake Laboratory is striving to be the best显示文摘This paper introduces the establishment of deep underground infrastructure for science and engineering research.First,the representative deep underground research laboratories and facilities in the world and their functions were summarized and reviewed.Then,the plan and service target of China Yulong Lake Laboratory were proposed for the storage of resources and energy,as well as the sealing of hazardous waste in deep underground space.On this basis,this paper reveals how the facility addresses its key scientific issue on“The law of fluid matter migration in deep underground space”and engineering significance.Finally,the construction progress of the facility components was demonstrated in details.As is hoped,this paper would provide useful reference to the deep underground research community;meanwhile,international collaboration on deep underground research is highly welcome. | Lihua Hu Jianguo Wang Ali Karrech Xiaozhao Li Peng Zhao Lulu Liu | 2022 | Deep Underground Science and Engineering2022，1，2： | 0 |
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