Chilled beam systems are becoming increasingly popular among architects and engineers for modern building projects. These systems provide adequate cooling and ventilation while offering several advantages over traditional HVAC systems. This blog aims to provide information about what a chilled beam system is, how it works, and why it is a preferred choice for many professionals in the industry.
Understanding What is a Chilled Beam System
A chilled beam system is a room air recirculation device that cools and ventilates spaces. It is beneficial in places where comfort and indoor air quality are essential, such as offices, hospital rooms, hotel rooms, classrooms, and laboratories. Chilled beams recirculate air in a room to maintain a comfortable temperature and improve air quality.
Chilled beams allow for flexible use of available space and are often used where primary air needs to be dehumidified. DRI’s EcoBeam range, for instance, has a higher induction ratio, which means less primary air is necessary. This reduced air volume requires the supply air to be dry enough to manage internal moisture effectively. When paired with Dedicated Outdoor Air Systems (DOAS), chilled beam systems ensure reliable and energy-efficient operation.
How Do Chilled Beam Systems Work?
Chilled beams come in two main types: active and passive. Active chilled beams are linked to both the ventilation air ductwork and the chilled water system. A dedicated outdoor air-handling unit supplies primary air through the chilled beam, inducing secondary air (room air) to recirculate through the heat exchanger of the chilled beam. To cool a room, chilled water, usually between 15 and 18 degrees Celsius, circulates through the heat exchanger. The cooling output depends on the amount of secondary air induced through the heat exchanger and the temperature difference between room air and water.
Chilled beam systems can also provide heating. Hot water, typically between 30 and 45 degrees Celsius, can be circulated through the system when heating is required. The heat exchanger manages Room temperature by regulating the water flow rate.
Energy Savings and Efficiency of Chilled Beam Systems
Chilled beam systems offer more energy efficiency benefits than traditional forced air systems. Here are some key advantages:
- Reduced Air Handling: Chilled beams transfer most of the cooling through water, reducing the air that needs conditioning. This lowers fan energy consumption significantly.
- Water-Based Cooling: Water is more efficient for heat transfer than air because it has a higher specific heat capacity. This makes chilled beam systems more energy-efficient while maintaining thermal comfort.
- Low Maintenance: Chilled beams have fewer moving parts than traditional HVAC systems. This reduces the chances of breakdowns, reducing energy use and maintenance costs.
Challenges and Considerations for Chilled Beam Systems
While chilled beam systems have many benefits, there are challenges to consider:
- Air Quality: Passive chilled beams do not actively introduce or circulate new air. Therefore, adequate ventilation systems are necessary to maintain good indoor air quality.
- Architectural Integration: Integrating chilled beams into a building’s architectural design can be challenging, especially for retrofit projects.
- Initial Costs: The upfront costs of installing chilled beam systems can be higher than those of traditional systems. However, the lower operational costs can offset this over time.
Why Choose DRI for Your Chilled Beam System?
DRI offers some of the best chilled beam systems in the market. Our chilled beams are designed to maximize energy efficiency while providing superior indoor air quality. With DRI’s EcoBeam, you get a system that reduces primary air volume, requires less dehumidification, and pairs seamlessly with DOAS for an energy-efficient solution. We ensure our chilled beam systems are reliable and meet the high standards required for modern commercial spaces.
Conclusion
Chilled beam systems are an intelligent choice for architects and engineers looking for energy-efficient and effective cooling solutions. These systems provide many benefits, from reduced energy consumption to improved indoor air quality. At DRI, we offer top-quality chilled beam systems that meet the needs of various commercial and residential spaces. Explore our range of chilled beams and why many in the industry are switching to chilled beam cooling solutions.
