BIM-integrated MEP designs foster collaboration among stakeholders

Principal Consultant Dipak Babrekar shares his thoughts on the design and management of MEP systems, role of BIM in ensuring a robust MEP design, and the challenges in retrofitting MEP systems in ageing infrastructure.

How do you integrate MEP systems with other building management systems (BMS)?
To integrate MEP systems with BMS using smart technologies, we chose a BMS system compatible with at least 10 years, using the latest technologies like optical fibre systems for monitoring, recording, and documenting system history and daily activities. For HVAC, we deploy IoT sensors, BTU meters, energy meters, smart thermometers, and CO2 sensors to measure temperature, air quality, and energy consumption through VFD drivers. Lighting is managed with occupancy and daylight sensors to optimise usage. Smart meters are used for mechanical pumps to monitor energy consumption. Predictive maintenance and parts replacement are enabled through AI algorithms, and site personnel are enabled using VR training tools. These measures enhance building energy efficiency, comfort, and sustainability, supporting conventional and green-certified projects while promoting ESG practices.

What are the benefits of BIM (Building Information Modeling) in MEP design?
Using BIM in MEP design facilitates improved real-time collaboration among architects, structural engineers, service consultants, and vendors, reducing conflicts during design and execution. The clash detection feature minimises project delays, cuts costs, and enhances energy efficiency. BIM ensures maximum safety during material take-off and aids in HVAC and lighting design while accounting for Sun’s direction throughout the year. Additionally, BIM facilitates the documentation of all project records from design to commissioning, simplifying facility maintenance. These records can be accessed through the cloud, which ensures problem-free management and long-term support.

What are the best practices for proper cable routing and management to prevent mechanical damage and ensure long-term reliability in construction projects?
Proper cable routing and management are crucial for preventing mechanical damage and ensuring long-term reliability in construction projects. Electrical safety should be incorporated by design, not as an option, which means that cable trays and trenches are sized with sufficient safety factors to minimise heating issues. Fire-resistant cables like FRLS/FRZH are recommended for human safety against toxic gases and smoke. Installing thermal imaging cameras is essential to detect potential cable heating issues. For high-rise towers and commercial complexes, bus ducts should be employed to reduce the number of cables and optimise space. Cables should be routed through fire sleeves embedded in floor slabs to protect against mechanical damage and fire spread.

What are the challenges associated with retrofitting MEP systems in existing buildings, and what are your solutions to overcome them?
Retrofitting MEP systems in existing buildings presents several challenges. A lack of architectural and MEP service drawings often delays system review. In some cases where PVC or XLPE-insulated cables are found, fire-retardant, low-smoke cables are required. Additionally, there may not be enough outdoor HVAC VRF systems, requiring terrace space. Solutions include 3D laser scanning for accurate architectural drawings, macerators and pumps for remote toilet connections, and pre-fabricated light wall partitions to conceal MEP services. Additionally, planning software and scheduling apps can help minimise delays and disruption in the surrounding areas.

For more details, visit: https://benchmarkmep.online/