• Shanghai Institute of Mechanical and Electrical Engineering Co., Ltd.

    Shanghai Electric Environmental Protection Group Technology Renovation and Expansion Project for Nantong Thermoelectric Waste Incineration

    Nantong, Jiangsu, China

Project Summary

    • POWER GENERATION - Shanghai Institute of Mechanical and Electrical Engineering

A Renewable Energy and Environmental Protection Initiative

To help resolve the domestic waste generated by approximately 4.5 million people in the city of Nantong and surrounding areas, Shanghai Electric Group initiated their first waste-to-energy incineration project. As a comprehensive utilization of waste-to-energy incineration, it will allow waste to be reduced, recycled into useable energy, and made harmless to the environment. The CNY 1.36 billion technology renovation and expansion project requires three new waste-to-energy incineration lines to be built to replace the original fluidized bed waste lines at the existing power plant. Shanghai Institute of Mechanical and Electrical Engineering (SIMEE) is the designer but faced issues integrating new and existing equipment within a limited footprint. This challenge was compounded by the requirement to keep the original plant operational, as well as by meeting an 18-month construction timeline.

Committed to 3D Digitalization

The project presented many interactions between the old and new plants that were necessary to keep existing operations going during the technology expansion and renovation. In addition, given that it was going to be newly built at the original production site, the available space was extremely limited, resulting in a smaller overall construction area, higher workloads, and a complex pipeline layout. SIMEE recognized that conventional 2D design would result in rework at the construction site, delaying the project and increasing unnecessary costs. They desired a robust, innovative solution and committed to 3D digitalization. They needed to adopt a BIM process and establish a connected data environment to coordinate among 10 different disciplines and generate a digital twin to complete the project on time.

Bentley Provides BIM and Digital Twin Solution

After researching their options, SIMEE selected Bentley’s 3D BIM and digital twin applications to implement collaborative visual workflows. They used OpenPlant Modeler for modular design, visualization, and clash detection, identifying over 600 clashes in advance. Using OpenBuildings Designer, they built a component library to design the building and develop the manufacturing plans. Navigator provided mobile viewing of the 3D model for all stakeholders to view the equipment and pipeline properties, while LumenRT facilitated an immersive review of the whole project. They relied on the Bentley iTwin platform to generate a cloud-based digital twin from the 3D model, as well as ProjectWise as the collaborative platform to streamline visual BIM workflows.

Technology Advancements Drive Savings and Sustainability

Bentley’s advanced modeling and visualization technology shortened the design cycle from two months to 45 days and improved overall design quality and depth by 50%. Using the 3D model for accurate material extraction saved approximately CNY 2 million in pipeline material costs. Bentley’s BIM and digital twin applications saved SIMEE 31% in labor costs, reduced construction errors by 90%, and enabled the project to be put into operation 31 days ahead of schedule. As the first waste-to-energy project in China based on digital twin technology, it has played a significant role in improving urban infrastructure construction, upgrading the environment, and promoting sustainable development, setting a benchmark for future industry initiatives.

Project Playbook: AssetWise, AutoPIPE, iModelHub, OpenBuildings, OpenPlant, ProjectWise, ProSteel

  • SIMEE was tasked with designing Shanghai Electric’s first waste-to-energy incineration project.
  • The CNY 1.36 billion technology renovation and expansion presented a limited footprint, and coordination and integration challenges on a tight construction timeline.
  • SIMEE applied Bentley BIM and digital twin technology to improve management and information sharing, saving CNY 2.4 million in material and labor costs.
  • Working in a 3D visually connected environment using a digital twin reduced review of construction drawings from one month to five days.
  • “By using the digital twin, we were able to identify problems in the design in advance and make changes on time, which increased the continuity of construction, reduced changes in construction, and achieved zero delays.”

    Yuping Liu Engineer Shanghai Institute of Mechanical and Electrical Engineering Co., Ltd.