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High-efficiency climate and circulation systems engineered specifically for massive open-space architectural designs.
Modern airport terminals represent some of the most challenging architectural spaces for heating, ventilation, and air conditioning (HVAC) design. Characterized by massive spatial volumes, soaring ceilings, expansive glass facades, and highly dynamic occupancy loads, these hubs require specialized engineering strategies. Traditional ducted systems, while effective for standard commercial buildings, often fall short in large-span terminal zones due to aesthetic constraints, structural load limits, and the sheer inefficiency of pushing conditioned air down from high ceilings.
To address these challenges, the global aviation industry has rapidly transitioned toward Ductless Large Span Ventilation solutions integrated with intelligent Central HVAC Systems. By utilizing high-velocity jet diffusers, underfloor displacement systems, and localized air circulation units, airports can achieve precise thermal comfort zone control. This approach minimizes energy waste in unoccupied vertical zones, drastically reducing operational costs and supporting global decarbonization mandates targeting net-zero airport operations.
The global market for airport HVAC infrastructure is undergoing a technological revolution driven by sustainability policies and smart-city integrations. The primary trend is the adoption of "smart zoning" and demand-controlled ventilation (DCV). By utilizing real-time passenger tracking sensors, AI-driven building management systems (BMS) can dynamically adjust airflow and temperature in specific terminal zones—such as boarding gates during departures or baggage claims during arrivals.
Furthermore, ductless high-induction jet nozzles and ceiling-type air conditioning units are being integrated with green energy grids. This shift is not merely about comfort; it is a critical strategy for airports to obtain prestigious LEED or Airport Carbon Accreditation (ACA) certifications. The focus has shifted from high-volume air dumping to strategic micro-climate creation, where only the lower 2 to 3 meters of a terminal space (the occupied zone) are actively conditioned, leaving the upper void stratified and unconditioned to conserve massive amounts of thermal energy.
Exploring how ductless ventilation solves the unique physical constraints of large-span airport structures.
Departure halls are the first point of contact for travelers, featuring high ceilings (often exceeding 15 meters) and continuous traffic. Traditional ducted systems struggle to deliver conditioned air to the ground level without causing drafts or losing thermal energy to the upper layers. Ductless large-span ventilation solves this by utilizing high-induction jet nozzles installed on side walls or structural columns. These nozzles project high-velocity air streams that entrain surrounding air, creating a uniform thermal distribution at the occupied level. This configuration ensures passenger comfort while keeping the ceiling area free of heavy ductwork, highlighting the architectural beauty of modern airport structures.
Baggage claim zones experience rapid, extreme fluctuations in passenger density. When a wide-body aircraft lands, hundreds of passengers crowd around a single carousel, causing localized spikes in sensible heat and carbon dioxide levels. A central HVAC system configured with ductless card-type air circulation units and high-capacity centrifugal exhaust fans can rapidly ramp up localized air exchange rates. By focusing ventilation precisely where the crowd gathers, the system avoids wasting energy on empty carousels, optimizing resource allocation.
Airport concourses are long, narrow spaces with extensive glazing that exposes them to significant solar heat gain. Ductless ventilation designs in these areas often employ a combination of displacement ventilation and ceiling-mounted air conditioning units. By introducing low-velocity conditioned air at floor level and extracting warm air at the ceiling, a natural thermal stratification is established. This prevents the solar heat radiating from the glass facade from mixing with the cool air in the passenger pathway, reducing the overall cooling load by up to 30% compared to traditional mixing systems.
Transition zones, such as boarding bridges, connect highly controlled indoor terminal environments with the outdoor apron. These zones are subject to extreme temperature infiltration and jet exhaust fumes. Specialized, compact ductless ventilation units with high-efficiency particulate air (HEPA) filtration and active carbon filters are deployed here to maintain positive pressure. This barrier prevents contaminated outdoor air and fumes from entering the main terminal building, ensuring excellent indoor air quality (IAQ) throughout the passenger journey.
Designing a Central HVAC System for large-span airport terminals presents several unique engineering challenges that require precise calculations and advanced equipment selection:
Maintain a constant temperature for twenty years, creating a new future.
Dezhou Yuanxin Air Conditioning Equipment Co., Ltd. was established in March 2006, covering an area of 60,000 square meters. It is a comprehensive enterprise integrating the design, production, sales, and service of a series of products such as central air conditioning, ventilation equipment, CCCF fire smoke exhaust, etc. It is a member unit of the China Refrigeration Society, the vice president unit of the Central Air Conditioning Industry Alliance, a CCCF certified enterprise for fire protection products by the Ministry of Public Security, and a China HVAC production base.
In terms of equipment level, development space, and overall strength, the company has strong development potential. It has now obtained ISO9001, ISO14001, and OHSAS18001 (quality, environment, occupational health) three system certifications, obtained the national industrial product production license for fan coil units and air curtain machines, obtained the CCCF certification for fire protection products issued by the Ministry of Public Security's Fire Product Qualified Evaluation Center, and has national inspection reports for various series of main products, safety production standardization and other series of qualifications.
Comprehensive manufacturing capabilities covering all aspects of commercial and industrial HVAC systems.
The company mainly operates: air conditioning purification units, fresh air and ventilation machines, cartridge fan coil units, exposed fan coil units, ultra-thin wall-mounted units, water temperature air conditioners, air curtains, warm air heaters, CCCF axial flow fire smoke exhaust fans, centrifugal fire smoke exhaust fans, tunnel fans, subway fans, side wall fans, fire dampers, smoke exhaust valves (smoke exhaust outlets), smoke exhaust fire dampers, and various fans, air outlets, mufflers, common plate flange ducts, and other varieties.
Explore our full range of high-performance air handling and exhaust solutions optimized for large-scale public facilities.
