Similarities of DBD and NP Air Bipolar Ionization Technologies

Bipolar air ionization is an unconventional method of air treatment. It is most commonly achieved through DBD technology, based on dielectric barrier discharge, and NPBI technology, based on needlepoint emitters.

There are significant differences between these technologies. However, they also share several important technical, functional, and operational characteristics. The following section outlines five main groups of similarities between DBD and NPBI technologies.

1. Technology and Operating Principle

• Terminology: Both technologies are commonly referred to as bipolar air ionization.
• Technology basis: Both operate on the principle of electrical discharge.
• Electrical voltage: Both require high voltage to generate ions through electrical discharge.
• Unconventional technologies: DBD and NPBI are considered unconventional but innovative air purification technologies, although their fundamental patents date back more than one hundred years.

2. Equipment and Installation

• Equipment classification: Both are classified as electrical air cleaners under the same customs tariff code.
• Installation: Both technologies offer flexible installation options. They can be integrated into HVAC systems or used in standalone air treatment devices.
• Retrofit installation: Both technologies can be retrofitted into existing HVAC systems.

3. Performance and Efficiency

• Purpose: Both DBD and NPBI systems are designed to generate small positive and negative air ions for air purification.
• Factors affecting efficiency: The efficiency of both technologies depends on several factors, including product quality, the expertise of designers and installers, and air parameters.
• Electrical power consumption: Both systems are known for their low electrical power consumption.
• Low pressure drop: When integrated into HVAC systems, both technologies cause minimal pressure drop and do not significantly interfere with airflow.
• Improved filter efficiency: When bipolar air ionization is applied upstream of a mechanical filter, viewed in the direction of airflow, both technologies can improve the particle removal efficiency of the filter. This can further enhance indoor air quality.

4. IP Protection and Reduction of Static Electricity

• IP and Ex protection: Both technologies require an appropriate degree of equipment protection. Standard versions are not intended for use in Ex zones.
• Reduction of static electricity: Both technologies can contribute to reducing static electricity indoors. However, the result depends on proper design, positioning, installation, and system maintenance.

5. Environmental Impact

• Environmental acceptability: Bipolar air ionization can support sustainable practices by improving indoor air quality with low electrical power consumption and without continuous use of chemical treatments.

Although understanding the differences is essential, it is equally important to recognise the common characteristics that make both DBD and NPBI technologies relevant solutions for air purification.

Professionals can utilize this knowledge to make informed decisions and select the technology that best aligns with the specific requirements of the building, HVAC system, air parameters, and expected results.

SEE ALSO: Bipolar Air Ionisation – First Page of Google

SEE ALSO: FAQ – Bipolar Air Ionization

Marquis Intelligence applies bipolar air ionization as part of customised technical solutions for improving indoor air quality. The choice of technology, installation method, and expected effects are determined according to the characteristics of the building, HVAC system, pollution sources, and user requirements.