Laboratory Build Journal / Part 03

Environmental Systems

Lighting, airflow, filtration, monitoring, and the variables that can confound plant observations.

Publication note: Historical construction account and technical interpretation. Approximate dimensions and equipment details have not been independently audited. Diagrams are reconstructions, not as-built certification.

Founding edition · November 2026 · Part 03 of 05

An intermediate installation stage showing the frame and enclosure
● ORIGINAL BUILD PHOTOGRAPH   /   An intermediate installation stage showing the frame and enclosure
Interior view of the reflective controlled environment
● ORIGINAL BUILD PHOTOGRAPH   /   Interior view of the reflective controlled environment
Overhead interior view showing installed fixtures
● ORIGINAL BUILD PHOTOGRAPH   /   Overhead interior view showing installed fixtures

The research enclosure is a MELONFARM 32 × 32 × 63-inch tent. The equipment plan includes an AC Infinity IONBOARD S33 LED fixture (nominally 260 W), a 4-inch inline ventilation and carbon-filtration assembly, a CLOUDRAY S6 circulation fan, and a Controller 69 PRO.

Listing equipment does not establish that it has been installed, configured, or calibrated correctly. The operational status of each component must be verified separately.

Conceptual environmental monitoring and air movement in the tent
Conceptual environmental monitoring and air movement in the tent. Reconstructed explanatory diagram; not a surveyed as-built drawing or certified safety plan.

Why environmental measurement matters

Plant development depends on interacting conditions. Lighting changes both photosynthetic energy input and heat load. Ventilation influences heat, moisture and air exchange. Circulation can reduce localized stagnation but may also create uneven conditions. Sensors report only what they can measure at their installed positions.

Measurement plan

Before the first experimental observation, OCR intends to document sensor placement, measurement units, calibration or comparison procedures, logging intervals, and any periods when the system is out of its intended operating state.

Limitations

Nominal fixture ratings are not measurements of canopy irradiance. Controller settings are not equivalent to measured environmental stability. No verified light map, ventilation performance test, or baseline environmental dataset is claimed here.

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