NYC Health + Hospitals Woodhull is a primary care and preventive medicine hospital serving North Brooklyn since 1982. Apart from regulatory and routine maintenance, a focus on energy efficiency is a top priority for operations. One of the main areas in need of optimization is the HVAC system.
The Concern:
Woodhull has 31 air handler units (AHU) of various sizes and ages. Many dates to the original 1982 opening of the hospital.
Over the years of “always-on” operation, these AHUs have naturally degraded both from a performance and indoor air quality (IAQ) standpoint. This was harming building health and occupant well-being.
The Solution:
PURE- Steam utilizes high temperatures and low-pressure steam to deeply clean and sanitizes fouled coils
NYC Health + Hospitals and Woodhull staff in conjunction with their mechanical contractor, energy consultant, and the NY Power Authority decided to have all 32 AHUs restored with the PURE-Steam HVAC/Coil cleaning process.
PURE- Steam utilizes high temperatures and low-pressure steam to deeply clean and sanitize fouled coils. Airflow, static pressure, and coil cleanliness verification (delta-P) readings were collected from all 31 units before and after the cleaning process. 1 AHU was environmentally tested before and after PURE- Steam to determine environmental efficacy.
Benefits of the cleaning solution
Once the environmental cleaning project concluded a detailed report was issued for each unit is compiled. The aggregate results marked a dramatic improvement for the facility.
Benefits of the PURE-Steam Coil Cleaning Process
- Sanitizes the coils/ blower assembly
- Removes latent debris from deep within the coils
- Creates improved airflow
- Creates better cooling capacity
- Saves Energy (typically .22 cents per sq ft)
- Improves indoor air quality
- Reduces HVAC related work orders
- Extends HVAC equipment
The Results:
- 98.1% AHU Environmental Improvement (In Single AHU Tested)
- 18.8% or 3800 CFM Increase (Average Per AHU)
- 93,248 CFM Total Improvement
- 15.47% AP Improvement Across The Cooling Coil (Average Per AHU)
- 233.12 Tons Total Cooling Capacity Added (That’s Like 5.8 New AHUs!)
- $193,216 Estimated Total Energy Savings
- ROI 1.24 Years