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The Laser Scanning 3D Technology is gaining prominence in Architecture, Engineering and construction, aiming to the organize space and shape the human environment.Main advantages of laser scanning, such as efficiency, high accuracy and precision, low time consumption, safety and non-invasiveness, provide technological support for sustainable development goals.Obtaining a point cloud using laser scanning and creating 3D model allows producing a highly detailed computer image of a measuring facility.The resulting spatial model of the building makes it possible to prepare inventory documentation, conduct construction analyses and widely support technical facility management.Scan-to-BIM provides a platform for real-time visualization and enables stakeholders to observe site changes in a three-dimensional environment.This capability enhances communication, collaboration, and understanding among project teams, leading to improved decision-making and problem-solving.The use of detailed data about a single building is becoming possible to enrich BIM.Scan to BIM is a method for 3D Building model based on point cloud data taken by a laser scan which can be used for the different BIM compliant design and construction process.In this context this research paper aim to investigate the impact of the Scan To BIM method an operation in the design and construction of heating, ventilation, and air conditioning system.To achieve this a market study was made on the predominately used 3D laser scanners and point cloud processing software used.For the processes in the design phase HVAC system, energy analysis of existing building involving heat load calculation according standard and energy balance according to standard was selected analysis and evaluated.Overall, the integration of 3D laser scanning and BIM technology through the Scan-to-BIM process revolutionizes construction workflows, offering numerous benefits such as increased accuracy, time savings, cost optimization, and enhanced visualization of the site.
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