GENERAL CHAMBER REQUIREMENTS Rev 0.docx
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- Attached to
- Growth Walk-in Chambers (2) - Hilo HI. Federal contract opportunity
- Solicitation number
- 12905B24SS0081
About this file
This document is a Sources Sought notice for two walk-in growth chambers to be used at the USDA ARS facility in Hilo, Hawaii. The key requirements include: 144 sq ft of growing area that can accommodate plant heights from 20-72", controlled vertical and horizontal airflow, an air-cooled refrigeration system designed for the Hilo climate, and a sealed vestibule/anteroom to prevent chamber contents from being released into the building. The chambers must meet existing electrical, heat rejection, compressed air, and purified water parameters. They must also be capable of integrating with the existing central management system. The government is seeking information on the availability and capabilities of qualified sources, including small businesses, to determine the appropriate acquisition method. Responses are due by 2:00 PM Central Time on August 2, 2024, but this is not a solicitation for proposals or quotes. The government does not intend to make an award based on the responses.
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| File | Type | Posted |
|---|---|---|
| Walk in Growth Chamber Specification.docx | DOCX document |
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Text version
MANDATORY GENERAL CHAMBER REQUIREMENTS:
(All values provided on a per chamber basis)
1.0 Meet existing building design parameters:
1.1 Electrical Service: Main electrical service shall be compatible to be integrated with the following electrical services:
1.1.1 Inside building at control panel: 120/208volt, 3 phase, 60 cycle, four wire plus ground. Maximum MOP allowable = 50 amps
1.1.2 Inside building at chemical drier: 208-230volt, 3 phase, 60 cycle, three wire plus ground. Maximum MOP allowable = 30 amps
1.1.3 Exterior building at C/U: 208/230volt, 3 phase, 60 cycle, four wire plus ground. Maximum MOP allowable = 50 amps
1.2 Heat Rejection to Ambient: Chamber and Chemical Drier combined shall not expel greater than 10,200btu/hr to the building ambient.
1.3 Compressed Air: Maximum compressed air requirement shall not exceed 3.75 CFM @ 50psi
1.4 Purified Water: Maximum purified water requirement shall not exceed 2.1USGPH.
2.0 Controls and Management Integration
2.1 Remote Access and Management: Chambers shall be configured for, and capable of, fully integrating into the existing central management system for control, alarming and data collection activities.
| 3.0 | Plant Growth Lighting Suitability |
| 3.1 | Spectral Properties: For continuity of research conditions between environments, plant growth lighting shall be consistent with existing lighting systems and specifically capable of matching the existing spectral distribution properties indicated below, to within +/- 2%, along the full 360nm to 780nm axis, and be validated by on-site spectroradiometer measurements and analysis. |
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