The EMSD adopted the Multi-trade integrated Mechanical, Electrical and Plumbing (MiMEP) approach to replace the air handling unit (AHU) in our Headquarters for the first time, greatly improving the works efficiency. The MiMEP method enables “off-site prefabrication and on-site assembly”, where electrical and mechanical (E&M) components are pre-manufactured in a factory and then transported to the Headquarters for assembly, thus streamlining the on-site installation process. The works period was much shortened from the original nine days to three days, resulting in significant time saving.
Prior to commencement of the works, the EMSD team first conducted a comprehensive three-dimensional (3D) point cloud scan of the plant room, and, with the data collected by Building Information Modelling (BIM) technology, planned works details, including identifying potential collision of pipes, developing transportation routes for the installations, determining the dimensions of the prefabricated pipe modules, and reserving space for maintenance. The preliminary planning work enabled time saving in the on-site installation stage, and thereby enhancing overall work efficiency. Thanks to the streamlined process, the disruption of AHU operation during the works was markedly reduced, and the impact to daily operations was also minimised.
We had completed all the basic tests of the project in the factory, resolving the possible hardware and signalling failures in advance, as well as simplifying the testing and commissioning procedures. In addition, digital control modules were used for real-time monitoring of the operation data of the AHU through Internet of Things technologies, so that maintenance personnel can respond immediately when abnormalities are detected, thus achieving preventive maintenance.
Using I&T to enhance works efficiency, the EMSD has also been actively applying MiMEP technology in the installation and replacement of E&M facilities for client departments, fully embodying the two key strategies of “Providing Customer-oriented Innovative Services” and “Innovating Business Processes” outlined in the third Five-year Strategic Plan of the EMSTF. Currently, the EMSD has adopted MiMEP technology in a number of works including the replacement of chillers at Tai Lung Veterinary Laboratory and the replacement of AHUs at other client venues. In the future, we will remain committed to promoting the application and development of technologies to deliver prompt and efficient engineering services to our clients, in order to create public value for community betterment.
For details about the third Five-year Strategic Plan, please visit the thematic website at http://5yearplan.emsd.gov.hk and subscribe to our e-newsletter for updates.
