scholarly journals AUTOMATION OF CALCULATION OF HEAT-SHIELDING CHARACTERISTICS OF WINDOWS

2021 ◽  
Vol 9 (4) ◽  
pp. 81-85
Author(s):  
Ol'ga Baranova ◽  
Kseniya Kurushkina
Keyword(s):  
Heat Transfer ◽  
Visual Programming ◽  
Information Modeling ◽  
Design Stage ◽  
Building Structures ◽  
Modeling Tools ◽  
Transfer Resistance ◽  
Programming Tool ◽  
Heat Shielding ◽  
Capital Construction

The use of information modeling tools at all stages of the life cycle of a capital construction object allows you to analyze design information in order to make the most correct decision, while significantly reducing the uncertainty of processes by increasing the amount of data available for analysis. One of the labor-intensive processes at the design stage is the selection of the most suitable structural elements, including translucent structures. As part of the work, the normative and reference information related to the calculation of the heat-shielding characteristics of building structures has been analyzed, scientific developments and publications devoted to the automation of the implementation of heat engineering calculations using various software tools are considered. For the purpose of the study, two indicators were calculated: the normalized value of the reduced heat transfer resistance and the reduced heat transfer resistance of the window. To solve the problem, such automation tools as the Dynamo visual programming tool and the Python programming language were used, with the help of which a script was developed for calculating the thermal performance of windows for use in Autodesk Revit (Autodesk, Inc., USA). As part of the study, it was determined that the combined use of the Dynamo visual programming tool and the Python text programming tool, expanding the functionality of Autodesk Revit, made it possible to automate the task of calculating the reduced heat transfer resistance of a window and the normalized heat transfer resistance, taking into account conditions of a specific construction region.

scholarly journals Information modeling of windows with the account of thermophysical characteristics

2018 ◽  
Vol 144 ◽  
pp. 04014 ◽  
Author(s):  
Elena Ignatova
Keyword(s):  
Heat Transfer ◽  
Energy Efficiency ◽  
Information Model ◽  
Information Modeling ◽  
Design Stage ◽  
Building Structures ◽  
Structural Elements ◽  
Transfer Resistance ◽  
Building Information ◽  
Window Design

The task of improving the buildings energy efficiency is one of the most important tasks in the design of buildings. The buildings energy efficiency can be improved by rational choice of building structures and reduction of the heat transfer. Significant heat transfer of a building occurs through the windows. At the design stage of a building, it is necessary to estimate the magnitude of a heat transfer of different windows. Currently the designers are increasingly using the technology of building information modeling (BIM). 3D-model of the building consists of models of structural elements, which contain information about the different geometric, physical, technological and other characteristics of the structure. The aim of this work is to develop a parametric information model of the window taking into account its heat transfer resistance. In this paper the design of window units with one, two and three sashes are discussed. The value of window-reduced resistance to a heat transfer is calculated inside the window information model and is presented in the table. The method can be applied to different window design. Thermophysical parameter of the window information model can be used to assess the energy costs of operating the building.

EVALUATION OF BIM APPLICATION FOR WATER EFFICIENCY ASSESSMENT

2020 ◽  
Vol 15 (4) ◽  
pp. 91-115
Author(s):  
Ghazaleh Khoshdelnezamiha ◽  
San Chuin Liew ◽  
Victor Nee Shin Bong ◽  
Dominic Ek Leong Ong
Keyword(s):  
Assessment Tool ◽  
Sustainability Assessment ◽  
Green Building ◽  
Visual Programming ◽  
Local Context ◽  
Design Stage ◽  
Water Efficiency ◽  
Programming Tool ◽  
Efficiency Assessment ◽  
Building Information

ABSTRACT Application of Building Information Modelling (BIM) in architecture, engineering, and construction industry is known for its productivity and efficiency. Green BIM is one of the recent applications that aids users in achieving sustainability and/or improved building performance objectives through design and analysis of digital semantic models. The focus is on the application of green BIM for water efficiency (WE) analysis in accordance with the Malaysian Green Building Index (GBI) as a sustainability assessment tool. Revit Green Project Template (RGPT) and Autodesk Green Building Studio (GBS) as two available BIM tools were selected to evaluate and compare the applicability of each method for GBI WE assessment. To resolve the limitations identified from each evaluated method, automated GBI assessment tool (AGBIA) was developed as an alternative. The AGBIA as a supporting tool was established with the use of Dynamo, a visual programming tool to compensate for the limitations faced in the investigated methods. The practicality of each method was explored using a hypothetical model in Revit to automate information correspondent to 10 water efficiency assessment points and generate reports and documents necessary for the GBI design stage certification. The final phase involves verification of results obtained from each method using the conventional GBI WE calculator. AGBIA is suitable for the green BIM users in Malaysia based on the flexibility and automation over defining and assigning green parameters that are in line with the local context, the direct link of green information to the model, as well as the detail of presented data.

scholarly journals Building Envelope Thermal Performance Assessment Using Visual Programming and BIM, based on ETTV requirement of Green Mark and GreenRE

2017 ◽  
Vol 4 (3) ◽  
Author(s):  
Taki Eddine Seghier ◽  
Yaik Wah Lim ◽  
Mohd Hamdan Ahmad ◽  
Williams Opeyemi Samuel
Keyword(s):  
Design Process ◽  
Green Building ◽  
Building Design ◽  
Visual Programming ◽  
Building Envelope ◽  
Information Modeling ◽  
Design Stage ◽  
Rating Systems ◽  
Design Assessment ◽  
Green Building Design

Accomplishment of green building design requirements and the achievement of the targeted credit points under a specific green rating system are known to be a task that is very challenging. Building Information Modeling (BIM) design process and tools have already made considerable advancements in green building design and performance analysis. However, Green building design process is still lack of tools and workflows that can provide real-time feedback of building sustainability and rating during the design stage. In this paper, a new workflow of green building design assessment and rating is proposed based on the integration of Visual Programing Language (VPL) and BIM. Thus, the aim of this study is to develop a BIM-VPL based tool for building envelope design and assessment support. The focus performance metric in this research is building Envelope Thermal Transfer Value (ETTV) which is an Energy Efficiency (EE) prerequisite requirement (up to 15 credits) in both Green Mark and GreenRE rating systems. The development of the tool begins first by creating a generic integration framework between BIM-VPL functionalities and ETTV requirements. Then, data is extracted from the BIM 3D model and managed using Revit, Excel and Dynamo for visual scripting. A sample project consisting of a hypothetical residential building is run and its envelope ETTV performance and rating score are obtained for the validation of the tool. This tool will support project team in building envelope design and assessment by allowing them to select the most appropriate façade configuration according to its performance efficiency and the green rating. Furthermore, this tool serves as proof of concept that building sustainability rating and compliance checking can be automatically processed through customized workflows developed based on BIM and VPL technologies.

scholarly journals CHANGES IN LIGHTING STANDARDS AND THEIR INFLUENCE ON THE ARCHITECTURE AND ENERGY EFFICIENCY OF MODERN RESIDENTIAL BUILDINGS

2020 ◽  
pp. 9-17
Author(s):  
E.V. Vitvitskaya ◽  
◽  
D.V. Tarasevich ◽  
Keyword(s):  
Heat Transfer ◽  
Energy Efficiency ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
High Heat ◽  
Transfer Resistance ◽  
Heating And Cooling ◽  
Shielding Properties ◽  
Heat Shielding

Abstract. State regulations on the design of lighting in residential buildings in recent years have undergone significant changes, which in turn will significantly affect the architecture and energy efficiency of modern buildings of this type. This can be observed from the authors' analysis of the change in only one regulatory document given in this article – SCS (State Construction Standards) V.2.5-28: «Natural and artificial lighting» and only one lighting indicator: permissible deviation of the calculated value of CNL (coefficient of natural lighting) from the standardized value when choosing translucent structures of buildings. This article presents an analysis of this normative document in two versions – in the old one from 2012 and new from 2018. Based on the results of the analysis, the authors of this article found that, at the request of the architect, the area of translucent structures on the facades of two identical modern residential buildings can differ significantly: from the minimum with piece (separate) windows on the facades – where glazing occupies from 14.3% to 18.3% of the area of the facades; up to maximum with continuous glazing of facades – where glazing occupies up to 100% of the area of the facades of a residential building. These two facade glazing options are not only architecturally perceived differently, but they must also have different energy efficiency in order to provide different minimum allowable values of heat transfer resistance: for piece (individual) windows on the facade, this is R∑ ≥ Rq min = 0.6 m2•K/W and ordinary silicate glasses are suitable for their glazing, and for continuous glazing of the facade this should already be R∑ ≥ Rq min = 2.8 m2•K/W, that is, they must have the same heat-shielding properties as the outer walls, and their minimum allowable value of the heat transfer resistance must be 4.66 times more than for piece (separate) windows. For this option, ordinary silicate glass is no longer suitable, but modern glass-transparent structures with high heat-shielding properties should be used, for example Qbiss_Air, Pilkington, Heat Mirror Glass and others. They provide excellent protection against hypothermia in winter and overheating in summer, and have good sun protection properties. Their use in modern buildings contributes to energy savings for heating and cooling rooms throughout the year and creates increased comfort, but such translucent structures are much more expensive and better suited for elite housing construction than for social.

scholarly journals Integration of BIM and Procedural Modeling Tools for Road Design

2020 ◽  
Vol 5 (4) ◽  
pp. 37 ◽  
Author(s):  
Salvatore Antonio Biancardo ◽  
Alessandra Capano ◽  
Sara Guerra de Oliveira ◽  
Andrej Tibaut
Keyword(s):  
Parametric Representation ◽  
3D Models ◽  
Visual Programming ◽  
Information Modeling ◽  
Parametric Modelling ◽  
Modeling Tools ◽  
Road Design ◽  
Building Information ◽  
Programming Software ◽  
The Creation

Building Information Modeling (BIM) is a design and management methodology strongly used in the Industry of Architecture, Engineering, and Construction (AEC). It allows the creation of a 3D model through parametric modelling in a workflow that updates data, geometry and semantics using the Industry Foundation Classes (IFC) standard. The purpose of this paper is to develop and apply a BIM method for road infrastructures. The creation of the BIM 3D models was carried out using different visual programming software and BIM tools, designing the spatial and parametric representation of the roadway. This way, it has been possible to discover the advantages of using procedural modelling to design road infrastructure through software that are usually used in the mechanical and architectural field. Finally, the interoperability of the software to extract and exchange information between these BIM tools was assessed.

scholarly journals APPLICATION OF THE METHOD OF DIMENSIONAL CHARACTERISTICS TO THE CALCULATION OF THE HUMIDITY MODE OF MULTI-LAYERED ENCLOSING BUILDING STRUCTURES

2020 ◽  
Vol 10 (2) ◽  
pp. 10-15
Author(s):  
Yuri S. VYTCHIKOV ◽  
Mikhail Ye. SAPAREV
Keyword(s):  
Heat Transfer ◽  
Polymeric Materials ◽  
Normative Values ◽  
Vapor Permeability ◽  
Building Structures ◽  
Transfer Resistance ◽  
Design Decisions ◽  
Building Envelopes ◽  
Characteristics Method ◽  
The Russian Federation

The implementation of the energy saving program in construction, adopted in the Russian Federation, has led to a signifi cant change in the design decisions of building envelopes. To achieve the normative values of heat transfer resistance, various facade systems are currently widely used for insulation of external walls using polymeric materials as heaters, which have low values of the coeffi cient of thermal conductivity with a relatively high value of the coeffi cient of vapor permeability. Therefore, when choosing a textured layer of facade systems, it is necessary to take into account the value of its resistance to diff usion of water vapor in order to avoid the accumulation of moisture in the outer walls. The problem associated with the possible accumulation of moisture is especially relevant when designing both three-layer exterior walls and walls with internal insulation. To eliminate the formation of molds on the inner surfaces of the enclosing structures, leading to dangerous diseases of skin and respiratory tract organs, as well as the destruction of building structures, it is necessary to accurately calculate the humidity mode of the enclosing structures in order to protect them from overmoistening. The article presents a methodology for determining the position of the plane of possible condensation in multilayer enclosing structures, based on the use of the dimensionless characteristics method.

OPTIMIZATION OF HEAT-SHIELDING CHARACTERISTICS OF THE EXTERIOR WALLS OF COUNTRY COTTAGES, INSULATED WITH MONOLITHIC FOAM CONCRETE

2018 ◽  
Vol 8 (3) ◽  
pp. 22-25
Author(s):  
Yury S. VYTCHIKOV ◽  
Mikhail Ye. SAPAREV ◽  
Vladislav A. GOLIKOV
Keyword(s):  
Heat Transfer ◽  
Outer Wall ◽  
Heating Time ◽  
Exterior Wall ◽  
Foam Concrete ◽  
Transfer Resistance ◽  
Warm Up ◽  
Shielding Properties ◽  
Heat Shielding ◽  
Resistance To Heat

The heat-shielding properties of three-layer external walls insulated with monolithic foam concrete are considered in the article. The temperature is given in rooms operated in intermitt ent heating conditions. An optimal exterior wall design is proposed using monolithic foam concrete for the construction of country cott ages. For this design, the results of heat engineering calculations are presented using the analytical dependence of determining the heat transfer resistance, which ensures the minimum warm-up time of the wall. The results of the calculation are presented in tabular form for a given heating time and density of foam concrete. Also a relationship is described to determine the maximum allowable resistance to heat transfer of the outer wall at diff erent densities of monolithic foam concrete.

scholarly journals HBIM Modeling from the Surface Mesh and Its Extended Capability of Knowledge Representation

2019 ◽  
Vol 8 (7) ◽  
pp. 301 ◽  
Author(s):  
Xiucheng Yang ◽  
Yi-Chou Lu ◽  
Arnadi Murtiyoso ◽  
Mathieu Koehl ◽  
Pierre Grussenmeyer
Keyword(s):  
Semantic Knowledge ◽  
Visual Programming ◽  
Information Modeling ◽  
Surface Mesh ◽  
Triangle Mesh ◽  
Time Saving ◽  
Programming Tool ◽  
3D Information ◽  
3D Volume ◽  
Heterogeneous Knowledge

Built heritage has been documented by reality-based modeling for geometric description and by ontology for knowledge management. The current challenge still involves the extraction of geometric primitives and the establishment of their connection to heterogeneous knowledge. As a recently developed 3D information modeling environment, building information modeling (BIM) entails both graphical and non-graphical aspects of the entire building, which has been increasingly applied to heritage documentation and generates a new issue of heritage/historic BIM (HBIM). However, HBIM needs to additionally deal with the heterogeneity of geometric shape and semantic knowledge of the heritage object. This paper developed a new mesh-to-HBIM modeling workflow and an integrated BIM management system to connect HBIM elements and historical knowledge. Using the St-Pierre-le-Jeune Church, Strasbourg, France as a case study, this project employs Autodesk Revit as a BIM environment and Dynamo, a built-in visual programming tool of Revit, to extend the new HBIM functions. The mesh-to-HBIM process segments the surface mesh, thickens the triangle mesh to 3D volume, and transfers the primitives to BIM elements. The obtained HBIM is then converted to the ontology model to enrich the heterogeneous knowledge. Finally, HBIM geometric elements and ontology semantic knowledge is joined in a unified BIM environment. By extending the capability of the BIM platform, the HBIM modeling process can be conducted in a time-saving way, and the obtained HBIM is a semantic model with object-oriented knowledge.

Effectiveness Of Life Cycle Management Of Projects Using Information Modeling

2019 ◽  
pp. 24-29 ◽  
Keyword(s):  
Life Cycle ◽  
Construction Projects ◽  
Life Cycle Management ◽  
Information Modeling ◽  
Engineering Systems ◽  
Basic Principles ◽  
Complex Engineering ◽  
Domestic Practices ◽  
Capital Construction ◽  
Complex Engineering Systems

Improving the efficiency of life cycle management of capital construction projects using information modeling technologies is one of the important tasks of the construction industry. The paper presents an analysis of accumulated domestic practices, including the legal and regulatory framework, assessing the effectiveness of managing the implementation of investment construction projects and of complex and serial capital construction projects, as well as the life cycle management of especially dangerous technically complex and unique capital construction projects using information modeling technologies, especially capital construction projects, as well as their supporting and using systems, primarily in the nuclear and transport sectors. A review of modern approaches to assessing the effectiveness of life cycle management systems of complex engineering systems in relation to capital construction projects is carried out. The presented material will make it possible to formulate the basic principles and prospects of applying approaches to assessing the effectiveness of the life cycle management system of a capital construction project using information modeling technologies.

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