International Journal of Science, Engineering and TechnologyAuthors: Mr. Anshul S. Pande, Dr. Tejpal C. Parshiwanikar
Abstract: Heating, Ventilation and Air Conditioning (HVAC) systems comprise spatially interconnected ducts, air terminals, equipment, fittings and accessories that must be coordinated with architectural, structural and other building services. Conventional two-dimensional Computer-Aided Design (CAD) drawings remain useful for drafting, but they can limit spatial understanding and make coordination difficult when multiple services occupy constrained ceiling and shaft zones. Building Information Modeling (BIM) supports the representation of building systems as three-dimensional, information-rich objects and enables model-based coordination and documentation. This review synthesizes literature on BIM-enabled HVAC workflows, CAD-to-BIM conversion, multidisciplinary MEP coordination and clash detection. Published studies indicate that CAD-based duct-model generation can be formalized, BIM coordination benefits from structured information and management processes, and automated clash results still require engineering interpretation. A practical workflow is proposed for the ENEC Staff Accommodation Unit-02 (SAU-02) case study using AutoCAD, Revit MEP and Navisworks. The workflow connects drawing interpretation, HVAC model development, federated coordination, clash classification and resolution, model verification, and documentation. The paper’s contribution is an application-oriented synthesis and evaluation framework rather than a new HVAC thermal-design method. Quantitative performance outcomes are not claimed here; they are to be established through project-based model checks and coordination records.
