The photovoltaic module building integration level affects the module temperature and,consequently,its output power.In this work,a methodology has been proposed to estimate the influence of the level of architectural ...The photovoltaic module building integration level affects the module temperature and,consequently,its output power.In this work,a methodology has been proposed to estimate the influence of the level of architectural photovoltaic integration on the photovoltaic energy balance with natural ventilation or with forced cooling systems.The developed methodology is applied for five photovoltaic module technologies(m⁃Si,p⁃Si,a⁃Si,CdTe,and CIGS)on four characteristic locations(Athens,Davos,Stockholm,and Würzburg).To this end,a photovoltaic module thermal radiation parameter,PVj,is introduced in the characterization of the PV module technology,rendering the correlations suitable for building⁃integrated photovoltaic(BIPV)applications,with natural ventilation or with forced cooling systems.The results show that PVj has a significant influence on the energy balances,according to the architectural photovoltaic integration and climatic conditions.Keywords:Photovoltaic cooling;BIPV;Photovoltaic;Ventilation;Photovoltaic integration level in building【OA】(2)Graph⁃Based methodology for Multi⁃Scale generation of energy analysis models from IFC,by Asier Mediavilla,Peru Elguezabal,Natalia Lasarte,Article 112795 Abstract:Process digitalisation and automation is unstoppable in all industries,including construction.However,its widespread adoption,even for non⁃experts,demands easy⁃to⁃use tools that reduce technical requirements.BIM to BEM(Building Energy Models)workflows are a clear example,where ad⁃hoc prepared models are needed.This paper describes a methodology,based on graph techniques,to automate it by highly reducing the input BIM requirements found in similar approaches,being applicable to almost any IFC.This is especially relevant in retrofitting,where reality capture tools(e.g.,3D laser scanning,object recognition in drawings)are prone to create geometry clashes and other inconsistencies,posing higher challenges for automation.Another innovation presented is its multi⁃scale nature,efficiently addressing the surroundings impact in the energy model.The application to selected test cases has been successful and further tests are ongoing,considering a higher variety of BIM models in relation to tools and techniques used and model sizes.展开更多
造斜率的准确预测是进行井眼轨迹调控的基础,直接影响定向井钻井效率,但由于井下力学行为的复杂性,传统预测方法存在一定限制,难以实现精确预测。为此,提出了一种力学-智能模型融合的造斜率预测方法。利用力学模型计算钻头侧向力、钻头...造斜率的准确预测是进行井眼轨迹调控的基础,直接影响定向井钻井效率,但由于井下力学行为的复杂性,传统预测方法存在一定限制,难以实现精确预测。为此,提出了一种力学-智能模型融合的造斜率预测方法。利用力学模型计算钻头侧向力、钻头转角和极限造斜率并作为主控因素,通过自动化机器学习框架联合其他参数进行拟合预测,从而取代传统方法反演经验系数的过程,使其充分发挥力学模型宏观规律描述准确和智能模型非线性拟合能力强的优势。利用新疆玛湖区块14口井数据进行训练和测试。结果显示,融合力学参数后,模型造斜率最大误差、均方根误差和平均绝对误差分别下降了17%、12%和8%,其中均方根误差和平均绝对误差均小于每30 m 1.00°,表明该方法能够有效提升造斜率预测精度,尤其在造斜率急剧变化的井段表现出更优的预测性能。研究结果可为造斜率的准确预测提供新的思路,同时也可为井眼轨迹的精确调控提供一定的技术支撑。展开更多
文摘The photovoltaic module building integration level affects the module temperature and,consequently,its output power.In this work,a methodology has been proposed to estimate the influence of the level of architectural photovoltaic integration on the photovoltaic energy balance with natural ventilation or with forced cooling systems.The developed methodology is applied for five photovoltaic module technologies(m⁃Si,p⁃Si,a⁃Si,CdTe,and CIGS)on four characteristic locations(Athens,Davos,Stockholm,and Würzburg).To this end,a photovoltaic module thermal radiation parameter,PVj,is introduced in the characterization of the PV module technology,rendering the correlations suitable for building⁃integrated photovoltaic(BIPV)applications,with natural ventilation or with forced cooling systems.The results show that PVj has a significant influence on the energy balances,according to the architectural photovoltaic integration and climatic conditions.Keywords:Photovoltaic cooling;BIPV;Photovoltaic;Ventilation;Photovoltaic integration level in building【OA】(2)Graph⁃Based methodology for Multi⁃Scale generation of energy analysis models from IFC,by Asier Mediavilla,Peru Elguezabal,Natalia Lasarte,Article 112795 Abstract:Process digitalisation and automation is unstoppable in all industries,including construction.However,its widespread adoption,even for non⁃experts,demands easy⁃to⁃use tools that reduce technical requirements.BIM to BEM(Building Energy Models)workflows are a clear example,where ad⁃hoc prepared models are needed.This paper describes a methodology,based on graph techniques,to automate it by highly reducing the input BIM requirements found in similar approaches,being applicable to almost any IFC.This is especially relevant in retrofitting,where reality capture tools(e.g.,3D laser scanning,object recognition in drawings)are prone to create geometry clashes and other inconsistencies,posing higher challenges for automation.Another innovation presented is its multi⁃scale nature,efficiently addressing the surroundings impact in the energy model.The application to selected test cases has been successful and further tests are ongoing,considering a higher variety of BIM models in relation to tools and techniques used and model sizes.
文摘造斜率的准确预测是进行井眼轨迹调控的基础,直接影响定向井钻井效率,但由于井下力学行为的复杂性,传统预测方法存在一定限制,难以实现精确预测。为此,提出了一种力学-智能模型融合的造斜率预测方法。利用力学模型计算钻头侧向力、钻头转角和极限造斜率并作为主控因素,通过自动化机器学习框架联合其他参数进行拟合预测,从而取代传统方法反演经验系数的过程,使其充分发挥力学模型宏观规律描述准确和智能模型非线性拟合能力强的优势。利用新疆玛湖区块14口井数据进行训练和测试。结果显示,融合力学参数后,模型造斜率最大误差、均方根误差和平均绝对误差分别下降了17%、12%和8%,其中均方根误差和平均绝对误差均小于每30 m 1.00°,表明该方法能够有效提升造斜率预测精度,尤其在造斜率急剧变化的井段表现出更优的预测性能。研究结果可为造斜率的准确预测提供新的思路,同时也可为井眼轨迹的精确调控提供一定的技术支撑。
