https://www.industryweek.com/sites/all/themes/penton_subtheme_industryweek/images/logos/footer.png

Industry Week is part of the Business Intelligence Division of Informa PLC

  • Informa PLC
  • About us
  • Investor relations
  • Talent

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Discover:
  • M&T Show
  • Manufacturing Products
  • More
    Menu
    Log In or Register
    • Talent
    • Technology & IIoT
    • Operations
    • Leadership
    • Supply Chain
    • The Economy
    • M&T Show
    • Manufacturing Products
    • IndustryWeek Best Plants Awards
    • IW US 50 Best
    • IW US 500
    • IW 1000
    • Manufacturing Leader of The Week
    • Trump and Manufacturing
    • Cloud Manufacturing
    • Automotive Landscape
    • Cloud Computing
    • The Connected Enterprise
    • Industry Intelligence Market Reports
    • Webinars
    • White Papers
    • Magazine
    • Newsletters
    • Advertise
    • Content Licensing
    • Privacy Statement
    • Terms of Service
    • Cookie Policy
    IndustryWeek
    • Search
    • Log In
    • Register
    Recent
    Recent
    Manufacturing Advocacy Group Says Green New Deal Could Cost Consumers $244 Billion in Replacement Costs
    Feb 15, 2019
    New US Workforce Policy Board Includes, Apple, Lockheed Martin, Siemens, IBM
    Feb 15, 2019

    NAM’s Immigration Proposal Supports Wall and STEM Programs
    Feb 14, 2019
    U.S.-China Trade Teams Said to Be Far Apart on Reform Demands
    Feb 14, 2019
    Better Recruiting Through Social Media
    Feb 14, 2019

    education

    eBook on Operational Excellence
    Featured
    US Manufacturing Under Construction
    Jan 24, 2019
    Highlights from the 2019 North American International Auto Show
    Jan 18, 2019
    10 Global Predictions for 2019: AT Kearney
    Dec 07, 2018
    Top 25 Supply Chains of 2018
    Jun 25, 2018
    Dalian Metro System Uses Energy Intelligence to Cut Energy Usage by 12 Percent
    Sponsored Content
    The Connected Enterprise

    Dalian Metro System Uses Energy Intelligence to Cut Energy Usage by 12 Percent

    Sponsored by Rockwell Automation. The system integrates Rockwell Automation control and information solutions to correlate, visualize and share data.

    Dec 21, 2017

    Background
    China is looking to improve transportation for its 1.36 billion citizens – no small task. Nine of China’s largest cities have citywide metro systems. Another 28 cities are building metro lines or planning to build them in the next five years.

    Located in the south of the Liaoning Province, the major seaport city of Dalian needed a transportation system to accommodate its growing population. Buses and trams were clogging the streets, and rolling hills throughout the city make bike commuting difficult.

    The city’s current metro system consists of three lines – two underground lines and one above-ground light-rail line. An additional six new lines or expansion lines are expected by 2020. Spanning over 66 miles, the current system carries more than 100 million passengers annually through 50 stations throughout the metro area.

    Challenge
    When designing the Dalian Metro building automation control system, engineers standardized on Logix controllers. Operators needed a sophisticated, centralized method of control to effectively manage the HVAC, lighting, emergency signage, elevator systems and other electrical components on the system that stretches across the city.

    Additionally, Logix-based systems have proven successful across other major metro systems in China, including Hong Kong, Beijing, Nanjing and Tianjin.

    With a new building automation system (BAS), metro system planners aimed to reduce energy costs and keeps commuters comfortable. The city of Dalian has humid, monsoon-filled summers and dry, cold winters, so keeping riders comfortable without overspending on energy for the HVAC system was a challenge. The HVAC system accounts for 55 percent of the total energy usage, and the system’s lighting, escalators, safety and other electrical equipment account for the remaining energy costs.

    System engineers needed a solution that tied directly into the control system to gain access to accurate data at the individual station level and at the operation control center (OCC).

    Solution
    The entire Dalian metro system includes more than 50 redundant Allen-Bradley MicroLogix and CompactLogix controllers with about 100,000 I/O points across the different stations. A typical station includes two pairs of PLCs as communication controllers to pull and aggregate data from different devices within the HVAC, elevator and alarm systems.

    To improve visibility and pull actionable energy data from within the control system, the engineers tapped the FactoryTalk software suite from Rockwell Automation. FactoryTalk Historian software collects up to 10,000 data tags from PLCs per line. Metrics include station temperature, humidity, carbon dioxide concentration and other environmental data.

    FactoryTalk View Site Edition HMI software with a redundant server provides a comprehensive and accurate view into electricity, water and HVAC usage data.

    “Controller data is directly integrated with the energy intelligence system to give our operators a holistic view into the BAS operations,” said Hetong Wang, chief engineer for Dalian Metro.

    This information is fed to the FactoryTalk VantagePoint portal from Rockwell Automation, which offers advanced reporting and analytics on BAS data, converting raw numbers into shareable dashboards with actionable information. Trend reports developed with this information allow operators to set the system to respond automatically. For example, as the number of riders increases during evening rush hour at the end of a warm summer day, the system will automatically turn up the air conditioning to ensure riders stay cool and comfortable during their commutes.

    Operators can also manually adjust any of the systems from the OCC or a local station if they see a sudden fluctuation in riders or if an unpredicted weather event occurs.

    All of the BAS information is monitored, controlled and displayed on Allen-Bradley PanelView Plus graphic terminals. Now, the operators at the OCC can monitor electrical equipment and devices down to the station level, allowing them to oversee routine operations and quickly react in case of emergencies.

    Results
    After implementing the FactoryTalk software suite on top of the system architecture, operators increased visibility into operations across the entire system. With the ability to adjust system performance based on weather, ridership and trends, the Dalian metro system is projecting a 12 percent annual reduction in energy usage, equating to a 2 percent cost savings.

    “Not only is the system saving money, but the centrally controlled escalators, emergency exits and signage means the system is ultimately safer for our riders,” said Wang.

    Additionally, Dalian commuters are enjoying a more pleasant riding experience, with more responsive climate-controlled stations and trains.

    To keep the entire BAS system stable and riders comfortable, Dalian Metro plans to implement FactoryTalk AssetCentre software. The software provides a set of asset-focused tools to centrally and securely manage the BAS across all of the metro stations. The addition will also help with any future disaster-recovery efforts.

    0 comments
    Hide comments

    More information about text formats

    Comments

    • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

    Plain text

    • No HTML tags allowed.
    • Web page addresses and e-mail addresses turn into links automatically.
    • Lines and paragraphs break automatically.
    PublishLog in or register to comment
    Related
    Tyson Foods Improves Reporting Capabilities and Reduces Downtime
    Sponsored Content
    Tyson Foods Improves Reporting Capabilities and Reduces Downtime
    Sep 28, 2018
    Sponsored Content
    Think Differently with a Connected Enterprise
    Sep 25, 2018
    Vallourec Drilling Products Triples Output on Oil-Pipe Welding Line
    Sponsored Content
    Vallourec Drilling Products Triples Output on Oil-Pipe Welding Line
    Sep 24, 2018
    Get More From Digital Oilfield Equipment With Analytics
    Sponsored Content
    Get More From Digital Oilfield Equipment With Analytics
    Sep 20, 2018
    • Load More
    Logo
    Powered by Informa
    • Ad Choices
    • Newsletters
    • RSS
    • Contact
    • IndustryWeek Brand Guidelines
    • Sitemap
    • Privacy Policy
    • Terms of Service
    • Cookie Policy

    Follow us:

    © 2019 Informa USA, Inc., All Rights Reserved