SATPC0042489 Tab 04 4 SOW.pdf

STATEMENT OF WORK TEMPLATE

1.0 Introduction/Background: The Vacuum Plasma Spray (VPS) facility at NASA Langley Research Center requires precise and stable temperature control of the stage assembly during plasma operation. Plasma spraying generates rapidly fluctuating thermal loads, and the stage must be actively cooled to maintain operational stability, prevent overheating, and ensure repeatable test conditions. The existing cooling system is no longer adequate for the required heat‑flux levels and does not support the specialty coolant, GALDEN® HT‑135, which is necessary for vacuum‑adjacent operation due to its low vapor pressure, chemical inertness, and non‑reactive behavior in high‑temperature environments.

The Julabo PRESTO W40 dynamic temperature‑control system is required to provide high‑capacity, high‑stability cooling using GALDEN® HT‑135 and to integrate directly with the VPS cooling loop without redesign. This procurement supports continued operation of the VPS facility and ensures safe, reliable, and repeatable thermal management during VPS operation in support of NASA's materials research under the STMD Dust Mitigation and Environmental Material Solutions (DMEMS) effort.

2.0 Scope of Work: This Statement of Work covers the procurement, delivery, installation, and functional verification of one Julabo PRESTO W40 dynamic temperature‑control system, configured for operation with GALDEN® HT‑135 and integrated into the existing VPS cooling architecture. The contractor shall provide all hardware, documentation, installation support, and training necessary to ensure full operational capability.

3.0 Objectives: The objective of this effort is to acquire and implement a fully compatible, high‑dynamic chiller capable of circulating GALDEN® HT‑135 and maintaining stable stage temperatures during plasma spray operation. Successful completion will ensure safe thermal management, protect VPS hardware, and enable repeatable, high‑quality VPS testing for ongoing materials research

4.0 Description of the Work/Contractor Tasks:

The contractor shall provide a Julabo PRESTO W40 dynamic temperature-control system (Part No. 9421401.14) to ensure proper installation and operation within the LaRC VPS facility. The PRESTO W40 must meet the following technical specifications, which are required for safe and stable cooling of the VPS stage using GALDEN® HT-135 during vacuum plasma spray operation.

Task 1: Equipment Provision The contractor shall provide one Julabo PRESTO W40, water-cooled configuration, with the following required technical attributes:

• Working temperature range: –40 °C to +250 °C

• Temperature stability: ±0.01 °C to ±0.05 °C for high-precision control under rapidly varying thermal loads

• Heating capacity: 2.3 kW

• Cooling capacity: Up to 1.2 kW depending on temperature (e.g., 1.2 kW at

+20 °C; 0.3 kW at –30 °C)

• Pump flow rate: 0–40 L/min (variable-speed circulation pump)

• Pump pressure (PCF): 1.5–18.9 psi (0.1–1.7 bar) for stable circulation of high-density engineered fluids such as GALDEN® HT-135

• Pump connections: M24×1.5 male fittings for integration with IMPACT’s existing coolant loop

• Cooling-water connection: G¾ in.

• Dimensions: 13 in × 23.2 in × 26.4 in (W × L × H) for placement within the

IMPACT facility footprint

• Weight: 172 lb for planning of installation and handling requirements

• Ambient operating range: +5 °C to +40 °C, compatible with laboratory environmental conditions

• Digital interfaces: USB, Ethernet, RS232, SD-card slot, Modbus; optional RS485 and Profibus DP for facility integration

• External sensor support: Integrated Pt100 sensor connection for closed-loop control using external temperature feedback

• Touchscreen control: Integrated 5.7″ industrial TFT touchscreen for local operation and programming The contractor shall ensure the delivered unit is fully compatible with GALDEN® HT-135, which is required for vacuum-adjacent cooling due to its low vapor pressure and chemical inertness.

Task 2: Delivery and Logistics A lead time of 8 weeks is expected from the original quote. The contractor shall ship the PRESTO W40 to NASA Langley Research Center using air-ride freight or equivalent protective transport. The contractor shall coordinate delivery with NASA personnel and provide all necessary shipping documentation.

Task 3: Installation Support The contractor shall provide installation assistance, including guidance on placement, connection to the existing cooling loop, and verification of compatibility with GALDEN® HT‑135. NASA personnel will perform physical installation, but the contractor shall provide remote support as needed.

Task 4: System Verification The contractor shall assist NASA in verifying that the PRESTO W40 operates within manufacturer specifications once connected to the IMPACT cooling loop. Verification shall include:

• Confirmation of stable circulation of GALDEN® HT-135 at required flow and pressure

• Confirmation of temperature-control performance across the required operating range

• Confirmation of leak-free operation and proper pump performance

• Confirmation of correct operation of digital interfaces and external Pt100 sensor feedback

4.5 Documentation

The contractor shall provide all standard Julabo documentation, including:

• User manuals

• Installation guides

• Maintenance instructions

• Warranty information

• Interface and communication protocol documentation

5.0 Deliverables: The contractor shall provide the following deliverables:

1. One Julabo PRESTO W40 dynamic temperature‑control system, configured for

GALDEN® HT‑135.

2. All manufacturer documentation, including user manuals, installation instructions, and maintenance guidance.

All deliverables shall be provided upon installation and acceptance of the system.

Other Considerations:

Applicable Documents/Background:

• Julabo PRESTO W40 technical specifications

• LaRC VPS cooling‑loop configuration

• GALDEN® HT‑135 coolant compatibility and handling guidelines

• NASA facility safety and installation requirements

Milestones: N/A

Government-furnished property: N/A

Government-furnished information: NASA will provide cooling‑loop specifications and any additional documentation required for installation and verification.