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Precision-engineered high-throw jet units, fan coils, vortex induction diffusers, and air barriers built to maintain steady microclimates across expansive aviation terminal spaces.
Modern international airport terminals represent some of the most challenging thermodynamic environments in modern civil architecture. Featuring expansive open layouts, continuous curtain wall glazing, multi-level soaring atriums with ceiling heights frequently reaching 12 to 30 meters, and non-uniform occupancy densities, these structures cannot rely on legacy conventional ducted air distribution.
Traditional overhead ductwork systems suffer from severe limitations in large-span terminal buildings: massive dead-weight loads on long-span steel trusses, excessive friction head losses requiring oversized fan energy, intense thermal stratification where conditioned air stalls near soaring ceilings, and severe architectural interference with passenger wayfinding and natural daylighting strategies.
Overcoming buoyant thermal plumes and solar radiation through high velocity jet momentum, microclimate destratification, and acoustic attenuation.
Ceiling jet units create intense peripheral secondary air entrainment (induction ratios exceeding 1:10 to 1:15), drawing surrounding stagnant air into the primary jet stream to rapidly equalize air temperature before reaching passengers.
In soaring 20-meter check-in atriums, heat naturally collects beneath ceiling decks. Long-throw jet nozzles actively project conditioned air downwards during heating modes, capturing buoyant heat and slashing terminal energy consumption by up to 28%.
Airport terminals demand crystal-clear PA broadcast audibility. Yuanxin specialized terminal air conditioning units feature internal aerodynamic sound attenuation baffles and ultra-balanced backward-curved fans to ensure whisper-quiet operation beneath strict NC-35 acoustic thresholds.
Customized airflow architectures deployed to address varying passenger flows, envelope solar gains, and structural constraints.
Check-in atriums feature towering glazed curtain walls subject to severe instantaneous solar load swings, alongside high-density queues emitting considerable metabolic sensible and latent heat. Ductless ceiling jet air handling units (KDS-X series) cast long-throw air envelopes across the width of the hall without dangling duct runs, maintaining an ideal 22°C to 24°C thermal envelope.
Pier concourses span hundreds of meters where continuous passengers walk between gates. High induction vortex diffusers and cartridge fan coil units provide modular, micro-zoned cooling that dynamically adjusts based on boarding schedules, preventing overcooling in empty gate areas.
Frequent sliding automatic door openings create immense infiltration of outdoor air, dust, aircraft fuel emissions, and humidity. Centrifugal series heavy-duty air curtain machines generate an impenetrable high-velocity downward air seal across entry portals, cutting thermal infiltration by over 85% and preserving pressurized terminal air cleanliness.
High passenger dwell times and equipment heat loads in security checkpoints necessitate rapid air exchange without creating localized high-velocity drafts that cause passenger discomfort. Multi-directional card-type four-sided air outlets ensure uniform low-velocity, high-volume displacement air distribution.
Smart airports rely on automated digital modulation, indoor air quality (IAQ) purification, and CCCF life-safety compliance.
Next-generation aviation terminal engineering demands strict adherence to green building benchmarks such as LEED Platinum and Green Airport Accreditations. Yuanxin HVAC incorporates variable-frequency EC fans, predictive AI algorithms connected to flight arrival timetables, and multi-stage purification air filtering into all ductless terminal ventilation equipment.
| System Architecture | Air Velocity & Throw | Energy Efficiency (COP) | Installation Weight / Complexity | Acoustic Rating | Ideal Terminal Zone |
|---|---|---|---|---|---|
| KDS(X) Ductless Ceiling Jet Unit | 12 - 25 m/s (Throw > 35m) | Up to 4.85 (EC Inverter) | Low (Zero sheet-metal duct weight) | NC 32 - 38 | Departure Check-In Halls, High Atriums |
| High Induction Vortex Outlet | 3 - 8 m/s (High induction swirl) | High (Fast thermal mixing) | Minimal structural load | NC 28 - 35 | Boarding Gate Waiting Lounges, Retail Arcades |
| Centrifugal Heavy Air Curtain | 15 - 22 m/s Air Barrier | High infiltration isolation | Direct portal transom mount | NC 45 - 52 | Main Entrances, Jet Bridge Thresholds |
| Purification Fan Coil Units | 1.5 - 3.5 m/s Gentle Draft | Optimized Zone Modulation | Concealed modular mounting | NC 25 - 30 | VIP Lounges, Airline Operations Offices |
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.
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Explore our complete range of certified ceiling jet units, horizontal purification fan coils, air barriers, and advanced swirl diffusers.
