EnlargeWhat is Demand Flow for Chilled Water Systems? Demand Flow for Chilled Water (CHW) systems is a comprehensive energy management system that reduces the electricity use in the most energy-intensive component of most facilities. How does it work?Demand Flow CHW uses an intelligent, powerful, and proven method developed from our decades of experience in optimizing chilled water systems. By offering a holistic application of fundamental thermodynamic principles, it resolves chilled water system operational issues and enables design intent.DownloadsLearn more about how Demand Flow can improve performanceLearn more about how Demand Flow can improve operations
By implementing Demand Flow CHW, building owners can not only achieve their building performance and sustainability goals, they can also achieve:
Reduced Energy ConsumptionTypically 20-50% total Chilled Water System energy savings1-4 year simple paybackImproves System Deliverable Cooling CapacityImproved Indoor Environmental QualityOccupant comfort is not sacrificed to provide energy savingsMore effective humidity controlRequires less energy to deliver potentially colder chilled water temperatures
Extended Equipment LifeIncreased Deliverable tonnage means more redundancyReduced run-time = less maintenanceLess wear and tear on system componentsSimplified System OperationSequencing chillers is typically Lead / Lag based on run-hours (can be customized)More intuitive sequencing of equipmentImproved system reliability and control
Beau Rivage Resort & CasinoThis 24-hour operation facility has more than 3.2 million square feet of gaming, hotel, resort, convention and retail space. Their goal was to improve building and occupant comfort, update and improve outdated building automation system, and reduce energy costs. To achieve these goals, they partnered with Siemens to install the APOGEE® Building Automation System using the Demand Flow Chilled Water Optimization solution.Highlighted ResultsAir-side capacity increased 33%Energy was reduced by more than 500kWMore than $300,000 savings in energy costs in first yearHumidity reduced by approximately 10% Download Case Study
Ochsner Medical CenterOchsner turned to Siemens to reduce operating costs for their central plant. Their goal was to gain control over central chilled water plant; optimize plant performance; improve efficiency; and decrease costs. Siemens implemented the Demand Flow Chilled Water Optimizationsolution to meet the demands of the facility.Highlighted Results:Annual savings of $1,033,000/r or 15,590,763 kWh / yrReduction of 19,656,000 lbs. of Co2 / yr Chiller ton-hrs reduction of an average of 1.1 million per month, or 26.6%Electric kWh reduction of an average of 1.3 million per month, or 36.3%Efficiency kW/ton improvement of 16.2% Download Case Study
The Aquarium of the PacificSiemens implemented the Demand Flow Chilled Water Optimization solution in the central chilled water plant utilizing the existing Siemens APOGEE building automation system. Siemens implemented the Demand Flow Chilled Water Optimization solution in the central chilled water plant utilizing the existing Siemens APOGEE building automation system.Highlighted Results:Electric kWh was reduced by 51%Energy consumption savings exceeded $168,000 in the first yearReceived an additional rebate from the utility company Download Case Study
Gain Transparency with NavigatorNavigator is Siemens’ cloud-based data management platform designed to help you optimize the performance of your buildings. When paired with Demand Flow for Chilled Water Systems and/or Variable Air Volume Systems, you gain the ability to monitor the long-term performance of your HVAC system by tracking, maintaining, and enhancing improvement measures. Very customizable, Navigator allows you to achieve your energy, sustainability, and system performance targets. Click here to learn more about Navigator