The combination of energy efficiency and buildin
Design Comparison with a Digital TwinComparing several design options for a LEED certificate can be a time-consuming task with the conventional methods. This in turn allows building owners to maximize the credits earned for a LEED certificate. At design level, digital twin allows MEP engineers to eliminate the ineffective features and thus combine the features that collectively maximize the building performance. However, in some cases, these features are mutually exclusive of each other. This greatly increases the chances of earning more certification credits.Depending upon the different types of building projects, there are several rating systems provided under the LEED certification system. Energy efficiency is one such areas where building owners can score points that contributes towards a LEED certification.LEED (Leadership in Energy and Environmental Design) is a globally recognized green building certification system, which verifies that a building was designed and built by implementing strategies aiming at higher performance across metrics like energy savings, reduced emissions, indoor environmental quality, etc.LEED certification required accumulation of at least 40 points, including the prerequisites of the rating system with their corresponding credits. Below are the LEED certification rating systems:Building Design and Construction – BD+CInterior Design and Construction – ID+COperations and Maintenance – O+MNeighborhood Development – NDHomesCommunitiesEach rating system has a unique set of prerequisites and the corresponding credits based upon the building occupancy classification. LEED certification applies for all building types, commercial as well as residential. However, a digital twin allows comparing multiple design options in a much faster and efficient way.BD+C – 18 pointsID+C – 25 pointsO+M – 20 pointsHomes – 29 pointsAs mentioned above, the minimum score for LEED certification is 40 points.The combination of energy efficiency and building performance can allow owner to achieve higher certification levels (Silver, Gold or Platinum).The following points are some of the simulation proofs required for the performance-based approach:Sustainable Sites – Proof of reduced pollution reduction. Performance-Based Approach: Since this approach doesn’t require the use of prescriptive features, it offers high design flexibility. A digital twin allows the building owners to compare all these design options in multiple scenarios.Indoor Environment Quality – Simulation results for air pollutant levels for ventilation intake, construction material emission, illuminance levels of natural light. . There are 3 main certification level awarded based on the minimum score limit:Silver – 50 pointsGold – 60 pointsPlatinum – 80 pointsLEED Credits with a Digital TwinThe LEED certification rating system offers the following 2 options along with technical requirements:Prescriptive Requirement: They have very specific instructions, but the designed flexibility offered is very limited.In most cases, building featured that improve the overall performance achieve synergy. Building owners who seed LEED certification can use digital twins to simulate several design options for maximizing the credits earned under the LEED scoring system. It can also be used to improve the building’s performance during its entire life cycle, while reducing ownership costs like construction, maintenance, renovations, etc. Using only this approach, the building LEED certification can become highly expensive. Thus, building owners can earn points from the energy efficiency feature alone. A digital twin can simulate several configurations for HVAC systems and building envelopes to determine the configuration offering the highest energy efficiency. In construction projects, a digital twin is used to conducts design tests, gain valuable insights and record experiences without affecting the building structure. However, a building simulation is required as proof when opting for LEED credits based on performance.Energy and Atmosphere – Proof for validating minimum energy performance and possible optimization beyond the minimum.A building digital twin or a digital replica of a building Parallel twin screw barrel factory is a virtual model that collects real-world information about various building structures from wireless technologies like sensors, drones and many more.A digital twin can also be used for improving the performance areas where LEED certification does not mention simulation modeling. For eg
