ENGINEERING, AERODYNAMICS, AND BIOLOGICAL DEFENSE DOCUMENT
Developer / Author: Fehim Çalgav
System Architecture: Post-Mix Integrated Fluidic Biocidal Scrubber (Wet Scrubber)
Core Objective: Capturing Airborne Hantavirus and Pathogen Aerosols via Mass/Volume Differential and Reducing Transmission Rates to Zero
B-FALCON 3.0: Physics and Aerodynamics Integration Protocol
The system operates by utilizing the two fundamental scaling laws of aerosol physics (m ∝ d³ and v_s ∝ d²). The mass and volume differential of virus-laden aerosols are translated into the following physical operations within the modified Trotec unit and the Post-Mix nozzle:
1. “Cyclonic Mass Selection” at the Intake Line (Mass-Based Filtering)
The device’s intake fan utilizes a constant centrifugal (rotational) speed while drawing air in. At this point, particles separate based on their mass:
- Coarse Droplets and Pollen (d > 40 µm): Due to their very high mass (> 10⁻⁸ g), they exhibit high inertia, deviate from the air stream lines, collide with the intake wall, and are filtered out.
- Submicron Smoke Particles (d < 1 µm): Their mass is extremely low (~10⁻¹⁴ g); they perfectly follow the streamlines and pass through the system without colliding with the coils.
- Target Virus Aerosols (1–5 µm): This is precisely the intermediate mass segment we are targeting (~10⁻¹¹ g). These aerosols are neither light enough to remain suspended and escape nor heavy enough to settle immediately. They are directed exactly onto the evaporator coils by the intake velocity vector.
2. Stokes’ Law and “Sponge Effect” Optimization on the Coil Surface
When the terminal settling velocity equation is integrated into the system:
v_s = (g * d² * (rho_p – rho_m)) / (18 * mu)
Here, the density of the virus-laden respiratory aerosol (rho_p) is close to the density of water (~1 g/cm³) depending on the level of evaporation. The Post-Mix system adjusts the dynamic viscosity (mu) of the fluid film to turn this velocity and mass into an advantage.
- Surface Tension Management: When a 3 µm virus-carrying aerosol approaches the coil surface, the Non-Ionic Wetting Agent released from the Post-Mix reduces the surface tension of the liquid film to zero.
- Momentum Transfer: The moment the aerosol collides with this liquid film using its microscopic mass momentum, it cannot bounce back. The liquid layer absorbs the volume of the aerosol into itself (The Sponge Effect).
3. System Response Matrix by Aerosol Class
| Aerosol Class | Representative Diameter (d) | Approximate Mass (m) | Settling Velocity (v_s) | B-FALCON System Response |
|---|---|---|---|---|
| Smoke / Fine Soot | 0.5 µm | 6.5 x 10⁻¹⁴ g | 7.5 x 10⁻⁶ m/s | Follows the streamline; neutralized in the air by the Post-Mix vapor phase. |
| Virus Aerosol (Target) | 3 µm | 1.4 x 10⁻¹¹ g | 2.7 x 10⁻⁴ m/s | Hurled onto the coil by the airflow, trapped in the liquid film, and destroyed with IPA/H2O2. |
| Mist / Fine Dust | 5 µm | 6.5 x 10⁻¹¹ g | 7.5 x 10⁻⁴ m/s | Suppressed as coal/coke dust on wet coils; discharged without sludge formation. |
| Pollen and Coarse Dust | 40 µm | 3.35 x 10⁻⁸ g | 4.8 x 10⁻² m/s | Falls to the basin floor due to gravity and inertia within the intake corridor. |
4. Control of Evaporation Dynamics
When respiratory droplets are expelled into the air, they evaporate rapidly and transform into droplet nuclei. A reduction of diameter by half means the mass drops to one-eighth due to the cubic relationship (d³).
This is where the Trotec device’s dehumidification cycle comes into play: by keeping the ambient relative humidity at a controlled level, it prevents the virus-laden droplets from shrinking excessively (<1 µm) and escaping the system. Thanks to this optimum humidity corridor, virus-containing aerosols are stabilized precisely within the 3 µm mass band, rendering them “visible” (capturable) to the system.
Engineering Summary
Defining the physical mass and volume parameters with this degree of clarity mathematically explains why the Post-Mix disinfection system can radically reduce the transmission rate. The system does not filter randomly; thanks to its kinetic and aerodynamic behavior, it plucks that specific biological target weighing 1.4 x 10⁻¹¹ g out of the airflow as if using tweezers and delivers it to the chemical shield (Dermosept/B-FALCON recipe) in the lower basin.
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