ENERGY MATTERS Optimize Your Facility With High-Performance HVAC Technologies
Did you know Buildings account for about 40% of energy consumption. Facilities as vast as airports provide many opportunities to conserve energy and reduce environmental impact while increasing safety. High ceilings create dramatic terminal spaces, but concentrates the heat above occupants. What if heat were radiating from the floor instead? Heated air that escapes through open hangar doors is an energy drain. What if you weren t relying on air to heat your facility? Removing snow and ice from pedestrian walkways requires constant vigilance to reduce risk of falls. What if you didn t let ice form in the first place?
AVIATION FACILITIES How Can We Make Them More Energy Efficient? 1 1 4 1 2 1 2 4 Radiant Heating and Cooling Geothermal Snow and Ice Melting Pre-Insulated PEX Piping
BOOST PERFORMANCE With Hydronic Radiant Systems Water carries,500x more heat energy than air. It may surprise you that something as simple as fluid flowing through pipes hydronics can have a major impact on energy consumption. Hydronic radiant piping networks installed in floors, walls or ceilings circulate warm or cool fluid to condition interior spaces. While air is essential for ventilation, it makes sense to handle most of a building s heating and cooling load with radiant, because water transfers energy more effectively than air. HVAC designs that use a hybrid radiant-forced air system are the most efficient. Up to 5% energy reduction For heating and cooling in airport terminals throughout the world. Less than 5-year ROI Can be expected for most radiant heating/cooling systems in commercial buildings including terminals; hangars may breakeven sooner (research underway). Targeting Ø CO 2 emissions Geothermal energy can turn the vast property around aviation facilities into energy sources, contributing to net-zero energy targets. Radiant Heating and Cooling By conditioning building surfaces, in-slab hydronic radiant heating and cooling systems provide exceptional comfort with less energy than conventional air-based systems. You will achieve the most favorable HVAC total cost of ownership by integrating radiant as the primary heating and cooling source and downsizing the air-handling system. The case for radiant is especially strong in spaces with high ceilings and lots of window glazing, because it concentrates heat energy where the occupants are while minimizing heat gains and losses. Hands down, radiant is the most effective way to heat hangars, because the heat energy is held in the building structure rather than the air that quickly escapes when hangar doors are opened. Geothermal Energy Geothermal systems exchange energy with the earth to heat and cool buildings at a fraction of the operating costs of traditional HVAC systems. According to the International Ground Source Heat Pump Association, ground source heat pumps (GSHPs) can reduce energy consumption by up to 50%. Based on our pioneering expertise in radiant systems, we engineered a superior geothermal ground loop system. Our RAUGEO TM system extracts more energy than convention ground loops, reducing drilling costs, and provides easy access and control from a manifold located in your mechanical room or in an underground vault. Radiant Integrated With Geothermal Radiant systems require very moderate supply fluid temperatures, typically 100-120 F (8-49 C) in heating mode and 55-60 F (1-16 C) in cooling mode. It s precisely in these temperature ranges that a water-to-water geothermal heat pump operates most efficiently. This added optimization makes an already low-energy system work at unprecedented levels of efficiency.
No experience with radiant? We provide design support and job-site training.
Radiant + air achieves better total cost of ownership than air only. Ask how. Pipe as long-lasting as surfaces such as concrete and asphalt.
Snow and Ice Melting From parking lots to crosswalks to sidewalks, the REHAU hydronic snow and ice melting (SIM) system will help you create safer pedestrian zones. Around equipment such as hangar doors and people mover tracks, ice-free surfaces will keep things running smoothly. Operating costs are lower than you might expect; hydronic SIM uses about half the energy of electric systems and can be comparable to mechanical snow removal costs. Advances in hydronic controls and smart controls that even integrate weather forecasts continue to drive down costs. With further innovation, SIM systems under runways may one day allow more on-time flights. Pre-Insulated PEX Piping Aviation complexes often have central heat plants, requiring heat energy to move underground between buildings. Pre-insulated PEXa piping assures that the greatest amount of energy gets to the destination. Coils of REHAU INSULPEX are capable of long, continuous runs that snake around obstacles, allowing contractors to complete their work more quickly. Up to 0% less borehole footage Needed to extract geothermal energy using our innovative double U-bend vertical ground loop design. 5+ years continuous pressure testing Assures you our PEXa pipe is designed to last. REHAU Hydronic Radiant System How It Works Warm or cool fluid travels through RAUPEX crosslinked polyethylene PEXa pipe circuits Securely connected with EVERLOC compression-sleeve fittings, controlled by a PRO-BALANCE manifold, consisting of supply and return header pipes Connected to the building s hydronic distribution system, fed by any energy source, from boilers to solar water heaters to GSHPs (ground source heat pumps).
To learn about our global experience, visit na.rehau.com/aviation Stuttgart Airport, Germany Bilbao Airport, Spain Istanbul Airport, Turkey Munich Airport Hangar 2, Germany High Altitude Aviation Training Site, Colorado FedEX Hangar, Alaska For updates to this publication, visit na.rehau.com/resourcecenter The information contained herein is believed to be reliable, but no representations, guarantees or warranties of any kind are made as to its accuracy, suitability for particular applications or the results to be obtained therefrom. Before using, the user will determine suitability of the information for user s intended use and shall assume all risk and liability in connection therewith. 2015 REHAU 855.774 en 08.2015