Project Background
Jinan Children's Hospital is one of the major tertiary pediatric medical centers in Shandong Province, China. Its new inpatient and outpatient building was designed around a strict indoor air quality standard: continuous filtered fresh air in every pediatric ward, stable room temperature, quiet operation and lower ventilation energy consumption.
Because children are far more sensitive to indoor air pollution than adults, the hospital required ventilation that would work reliably through the long heating season, when outdoor particulate peaks and windows cannot be opened. Holtop, one of China's established air handling units manufacturers, was selected as the ventilation supplier after a competitive technical review.
Challenges on Site
- High occupancy density. Wards concentrate many people in small rooms, so stale air, moisture and CO2 build up without constant fresh-air replacement.
- Infection control. Cross-contamination between rooms had to be limited through balanced supply and exhaust airflow, not open windows.
- Harsh Jinan climate. Particulate peaks in the winter heating season while temperatures drop below freezing, so untreated fresh air meant heavy heating loads and fast filter clogging.
- Mixed building zones. Wards, corridors and consultation rooms needed different air paths and control strategies, so one standard catalogue unit would not fit every area.
- Energy and noise budget. A 100% fresh-air system would have exceeded the energy target, and quiet night operation is essential in children's wards.
Holtop Solution
Holtop engineers designed a decentralized energy recovery ventilation scheme built around commercial suspended ERV units. Each unit pairs a high-efficiency counter-flow total heat exchange core with EC plug fans and a two-stage filter train, so fresh air enters the ward already cleaned and pre-conditioned.
For consultation areas and corridors where a long duct run or limited ceiling void made a centralized plant impractical, the team configured a dx air handling unit arrangement, combining direct-expansion cooling with the same filtration and control philosophy used in the wards.
- Total heat recovery. The enthalpy core transfers both sensible heat and moisture, recovering most of the energy otherwise exhausted with the stale air.
- Balanced supply and exhaust. Airflow is tuned zone by zone to keep wards at slight positive pressure and prevent cross-contamination.
- Filtration against winter smog. The two-stage train captures coarse dust and fine particulate throughout the heating season.
- Suspended layout. Slim ceiling-mounted units fitted inside technical corridors, leaving ward ceilings clean and uncluttered.
- Low-noise operation. EC fans and internal acoustic insulation keep sound at a level suitable for night-time pediatric care.
Why the Hospital Chose Holtop
- More than two decades of ERV and AHU manufacturing experience, with an in-house test laboratory and factory testing before shipment.
- As experienced energy recovery ventilator manufacturers, Holtop guarantees heat exchange core quality and balanced airflow instead of reselling imported parts.
- As custom air handling unit manufacturers, Holtop adapts airflow, filtration, coil and control configurations to each zone rather than forcing a catalogue unit into an awkward ceiling void.
- Certified quality management and CE-compliant products for domestic and export healthcare projects, with support from selection to commissioning.
Scope of Supply for Healthcare Projects
- Commercial suspended ERV and HRV units for ward fresh air.
- dx air handling unit and custom air handling unit configurations for corridors, consultation rooms and technical areas.
- Chilled-water air side equipment supported by qualified air cooled chiller manufacturers where a central plant is specified.
Conclusion
The Jinan Children's Hospital project shows how a well-engineered energy recovery ventilation system meets the demanding indoor air quality requirements of healthcare buildings without inflating operating costs.
If you are planning a hospital, clinic or laboratory ventilation project, contact Holtop for a tailored ERV or AHU selection and a project energy saving estimate.
