General ventilation equipment filter test bench

Standards EN779:2012 and ISO FDIS 16890 Quality Details The GVT 3000 test bench features a modular design, allowing for adaptation to relevant standards. Filter testing accordin...

Introduction

Standards

EN779:2012 and ISO FDIS 16890

Quality Details

The GVT 3000 test bench features a modular design, allowing for adaptation to relevant standards.

Filter testing according to EN 779:2012

Filter testing according to ASHRAE 52.2

Filter testing according to ISO 16890

Individual component upgrades for the GVT 3000 test bench:

1. Various aerosol generation: Depending on the test standard, aerosol generators are available to disperse different dusts (e.g., A1–A4. ASHRAE, Aramco, etc.), salts (e.g., KCl/NaCl), oils (e.g., DEHS), and suspensions. All generators are characterized to comply with the new VDI 3491 and provide the highest metrological consistency in particle size distribution and particle concentration. Reduced measurement time, for example, by increasing dust concentration.

2. Emissions: (ISO 16890): ISO 16890 requires the use of KCI as the test aerosol for aerosol emissions. A key advantage: Emissions are easy to open and close and virtually maintenance-free.

3. Light Scattering Spectrometer: The Promo® Aerosol Spectrometer system is based on the same technology as the Fidas® system, which is certified for PM values. The aerosol spectrometer features high-resolution measurements of particle size and concentration within a single measurement range of up to 60 size categories, for example, 0.2–10 µm (with four measurement ranges between 0.2–100 µm), and reliably provides values ​​for PM1. PM2.5. and PM10.

4. Sampling: Representative sampling is connected to existing test channels, including isokinetic probes for both feed gas and purified gas measurement points.

5. Automation: Test bench automation for acquiring sensor data such as differential pressure and volumetric flow rate, as well as controlling related test bench components, aerosol generator, light scattering spectrometer, discharger, and fan, is achieved through globally validated FTControl software combined with standalone plug-and-play test bench control electronics (including I/O modules). Our company provides measurement sensors for selecting setpoints for humidity, temperature, air pressure, differential pressure, and volumetric flow rate on the filter under test. The components already present on the test bench can be integrated into the automated process.

Individual components (aerosol generator, dilution system, and aerosol spectrometer) work together to provide rapid, reproducible, and cost-effective measurement results. During acceptance testing before delivery and final system inspection, our company will conduct the necessary tests to provide clear proof of the functionality of each individual component.

Technical parameters

Flow range 600-5400m³/h
Measurement error ≤±2%
Resistance range 0-500pa
Measuring device accuracy 0-70pa≤±2Pa,>70Pa≤±3%
Aerosol uniformity ≤±15%
Initial efficiency repeatability <40%≤±30%
Particle concentration indication error 40%-60%≤±15%
60%-80%≤±8%
80%-90%≤±4%
90%-99%≤±2%
Efficiency range ePM1≤99% (Overall Efficiency)
Total power consumption 18KW
Main conduit Square: 610x610mm, Material: 304 Stainless Steel
Floor area 13000×2500×2500(mm) (Length×Width×Height)
Filtration efficiency 1. Filter Resistance
2. DEHS Counting Efficiency (PM1)
3. KCL Counting Efficiency (PM2.5. PM10)
4. Gravimetric Efficiency
Filtration resistance Flow-Resistance Curve
Dust holding capacity Filter Final Life Test

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