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Argonne National Laboratory Statement of Work Custom R&D Box Furnace October 12, 2026

1.0 Background

Argonne National Laboratory (ANL) requires a custom industrial furnace to support research and development (R&D) testing of fuel-flexible burner technologies. The furnace is intended to enable controlled thermal testing of direct- and indirect-fired burner configurations using natural gas and hydrogen fuel blends (0–100% H₂, balance natural gas).

This procurement is supported by an attached technical specifications document (the “Technical Specifications”), which includes the detailed technical requirements, interface expectations, and code/safety compliance references.

2.0 Scope

The Supplier shall design, fabricate, deliver, support installation, and commission a custom industrial furnace that meets the performance, functional, and compliance requirements stated in the Technical Specifications.

The scope of the supply is defined by the Technical Specifications and include the furnace, adaptable burner bung, furnace access door, refractory/insulation, cooling tubes, optical ports and windows, instrumentation ports, exhaust flue, and associated interfaces with the existing laboratory facility.

3.0 Objectives

The objectives of this procurement are to:

a) Provide a furnace system suitable for R&D burner testing within ANL’s facility environment, including support for direct-fired and indirect-fired configurations.

b) Deliver a furnace that achieves the thermal performance and operational capabilities stated in the Technical Specifications.

c) Ensure the furnace is designed, fabricated, installed, and commissioned in accordance with applicable codes, standards, and safety requirements identified in the Technical Specifications.

d) Establish a complete and usable set of deliverables (drawings, manuals, certificates, and test/commissioning records) to support safe operation and future maintenance.

4.0 Tasks

4.1 Furnace Design

The Supplier shall develop the design package for the custom furnace system, including engineering details sufficient for fabrication, procurement, and installation. The design shall incorporate, at a minimum, all required performance features and interface provisions described in the Technical Specifications.

Design activities shall include:

· Performing engineering analysis and developing design solutions to meet the Technical Specifications and applicable codes.

· Coordinating with ANL technical personnel through biweekly design meetings. Meetings shall be held remotely. The purpose of these meetings is to review design progress, address technical/interface questions, and ensure alignment. At each biweekly meeting, the Supplier shall provide a brief status update and raise items requiring ANL feedback or decisions.

· Preparation of the design deliverables required by Section 5.2.

· Submission of design package including engineering drawings for ANL review and approval prior to commencing fabrication.

· Revision of requested modifications by ANL technical team

· Obtaining written approval from ANL before commencing with fabrication of the furnace

4.2 Fabrication

The Supplier shall fabricate, assemble, and pre-test (as applicable) the furnace system at the Supplier’s facility to meet the Technical Specifications. The Supplier shall ensure workmanship, materials selection, and fabrication processes comply with the applicable codes/standards and the requirements of the Technical Specifications.

Fabrication activities shall include:

· Procurement of all Supplier-furnished components.

· Fabrication/Assembly of the custom furnace and subsystem hardware

· Verification/quality control activities to support acceptance by ANL during and after installation.

· Continued coordination with ANL through bi-weekly meetings to provide updates on fabrication progress, address questions, and ensure alignment.

4.3 Shipment

The Supplier shall prepare the furnace system for shipment, including handling, packaging, insuring, and securing for transport consistent with equipment sensitivity requirements. The Supplier shall deliver the shipped furnace components to the specified location for onsite installation as described in Section 8.0.

Shipment activities shall include:

· Final inspection/packaging prior to shipment.

· Provision of shipment/handling instructions and shipment documentation.

· Coordination with ANL for receiving and logistics as required to complete installation.

4.4 Installation

The Supplier shall site the furnace system at ANL or provide installation instructions. If required, the Supplier will complete assembly of furnace system components onsite. ANL is responsible for making final utility (air, fuel, exhaust, coolant, etc.) connections to the furnace and mounting the burner.

A complete installation is constituted by:

· The furnace is securely positioned at the agreed upon location and orientation at ANL.

· Door retraction mechanism has been tested and confirmed operable and robust.

· The exhaust system is connected to the furnace in compliance with the Technical Specifications and applicable codes.

· Retractable cooling tubes are installed. Tube retraction mechanism has been tested and confirmed operable and robust.

· Optical access windows are installed, and purge gas cooling system is tested and confirmed operable and robust.

4.5 Final Furnace Utilities Connection

ANL will make the final connection of utilities to the furnace, after it has been sited and installed. Utilities include combustion air, fuel (natural gas), coolant, exhaust stack (chimney). After final connections are made, ANL will schedule Furnace Commissioning (Task 4.6) with the Supplier.

4.6 Furnace Commissioning

The Supplier shall visit the ANL site to witness the first firing of the furnace with a natural gas direct-fired burner to perform functional checks of the furnace performance and identify/revise potential issues.

Commissioning activities shall include:

· Verification of correct installation and connection of furnace to utilities

· Functional checks of subsystems including coolant system leak-check, exhaust damper actuation, window cooling operation.

· Startup and commissioning of the furnace system using a natural gas direct fired burner (to be provided by ANL) to demonstrate readiness for R&D burner testing.

· Evaluate the performance of furnace features defined by the Technical Specifications (e.g., insulation performance, window cooling functionality) and verifying correct/robust operation

· Submission of commissioning report

5.0 Delivery

The Supplier shall deliver to:

ATTN: Shawn Reggeti Argonne National Laboratory Building 362, Highbay 9700 S Cass Avenue Lemont, IL 60439

5.1 Vendor-Provided Equipment (delivered to ANL)

· Custom furnace assembly (including chamber, refractory, insulation, structural members, exterior shell, bungs, door, etc.)

· Rectangular burner bung machined to accept the first burner to be tested

· Cooling components including water (coolant) tubes, retraction mechanism, hoses and manifold required to attach with facility coolant supply/return interfaces

· Exhaust components from the furnace up to the planned interface with the stack (anticipated ~3-5 diameters downstream of the furnace), including the eductor.

· Optical-access and instrumentation-port components (including windows and blanks/plugs consistent with Technical Specifications)

· Accessories/Spares:

· Refractory pylon assembly for Radiant W-tube testing

· Refractory pylon assembly for Radiant U-tube testing

· Refractory pylon assembly for indirect firing tube configuration

· Spare refractory/insulation material needed to pack around the interior of the rectangular burner bung to accommodate different burner geometries.

5.2 Documentation and Certificates (electronic and/or hard copies delivered to ANL)

· Design/Engineering Package

· Design drawings and engineering calculations as required for fabrication and install

· Presentation material (e.g., slides) from design review meetings between the Supplier and ANL

· 3D CAD model of the furnace system design

· As-built drawings reflecting final installed/fabricated configuration

· Operation & Maintenance Manual including procedures and torque specifications for bungs and windows

· Safe Operating Limits of the furnace and individual components

· Commissioning report describing functional checks and furnace performance

· Quality, Inspection, and Code/Compliance Documentation

· Bill of materials (BOM)

· Inspection and test records generated during fabrication and pre-shipment

· Code/compliance documentation supporting the design and construction (as required by Appendix E and Technical Specifications)

· Material and refractory certifications (e.g., batch/manufacturer certificates) for components used

· Pressure/leak and/or weld records as applicable to the furnace design

5.3 Acceptance Criteria - Delivery must fulfill the following requirements to be accepted by ANL

1. ANL was provided all the equipment listed in Section 5.1 of the Statement of Work.

2. ANL was provided all the documentation listed in Section 5.2 of the Statement of Work.

3. The equipment supplied under this contract match the dimensions and tolerances in the final design package approved by ANL.

4. The furnace features and mechanisms designed by the supplier function and perform as defined in the Technical Specifications attachment of the Statement of Work.

5. The furnace was commissioned at ANL with a natural gas fired burner at a firing rate not to exceed 5 MMBtu/hr for at least two (2) hours duration.

6. During the commissioning, the furnace did not incur damage to any components.

7. During the commissioning tests, the furnace exterior shell temperature did not exceed 176oF (80oC).

6.0 Government-Furnished Property

No government property will be furnished to the Supplier under this contract.

Any existing ANL systems, equipment, or facility utilities relevant to furnace interfaces (including coolant-related infrastructure and onsite fuel-air or exhaust context where applicable) are existing onsite resources and are provided only as contextual and interface information. Such onsite resources are not Government-Furnished Property under the contract and are not transferred to the Supplier.

The Supplier shall be solely responsible for providing the furnace and all vendor-furnished components, and for identifying the interface points and requirements necessary to ensure the furnace system can be installed and commissioned as required by the Technical Specifications.

7.0 Security

The Supplier shall comply with all applicable ANL access, escort, safety orientation, and facility rules for authorized personnel entering the ANL site. Security requirements specific to the Supplier’s personnel access, if any, shall be provided by ANL to the Supplier in coordination with onsite scheduling.

8.0 Place of Performance

8.1 Design and Fabrication

All design, fabrication, assembly, and pre-shipment activities shall be performed at the Supplier’s facility.

8.2 Installation and Commissioning

Installation and commissioning shall be performed at:

Argonne National Laboratory Building 362, Highbay 9700 S Cass Avenue Lemont, IL 60439

9.0 Period of Performance

The total Period of Performance is anticipated to be approximately six (6) months from contract award through installation and commissioning, subject to final schedule alignment with ANL.

A proposed timeline is provided below:

ANL to award contract to a supplier

January 2027

Project Kickoff Meeting – project alignment, design planning, confirm interface assumptions

1-2 weeks after contract awarded

Full design package submitted to ANL for review/approval

6 weeks after contract awarded

ANL reviews, iterates with the Supplier on revisions to proposed design package, and provides written approval

8 weeks after contract awarded

Fabrication of furnace complete and shipped to ANL

12-14 weeks after contract awarded

Furnace installation complete at ANL Building 362

16 weeks after contract awarded

ANL to complete final utility connections

20 weeks after contact awarded

Commissioning and functional verification

22 weeks of contract awarded

Closeout deliverables (as-built documentation, commissioning report, etc.)

24 weeks of contract awarded

Target Project completion: June 2027

Technical Specifications ANL R&D Furnace

Objective: Design, fabricate, and deliver a custom industrial furnace to support research and development of fuel-flexible burner technologies operating on a full range of natural gas and hydrogen blends (0–100% H₂, balance natural gas). Furnace must be flexible to accommodate testing a variety of burners from different manufacturers and support both direct-fired and indirect-fired configurations, with robust provisions for instrumentation and optical diagnostics.

1. Thermal Rating

a. Maximum continuous firing rate (LHV basis): 5 MMBtu/hr (1.5 MW)

b. Expected turndown ratio: 20:1 (i.e., Minimum continuous firing rate ~250,000 Btu/hr (75 kW))

c. Maximum furnace bulk temperature: 2400oF (1316oC)

d. Maximum furnace exterior shell temperature: 140-176 oF (60-80oC)

e. Maximum allowable heat transfer through furnace walls to ambient at maximum firing rate: 250,000 Btu/hr (75 kW)

2. Facility Constraints and Description

a. Existing building is a single-room highbay approximately 145 ft (L), 68 ft (W), 40 ft (H), built in 1962.

b. Floor space available for the furnace: 26 ft (L) x 17 ft (W) x 16 ft (H) – see Appendix A

c. Finished floor load limit: 3000 psf

d. Installation tools available

i. Roll-up door: 21 ft (W) x 20 ft (H)

ii. Fork lift

iii. Overhead crane (20 ft AFF, 20 Ton Capacity)

e. Safety standards and compliance approach to be identified by the supplier in coordination with ANL technical/safety teams; supplier should be competent with the codes listed in Appendix E.

3. Furnace Design

a. Combustion Chamber Internal Dimensions

i. Sized to accommodate min/max firing rates (Section 1)

ii. Anticipated internal volume: 300-400 ft3

iii. Aspect ratio: ~2:1

iv. Proposed interior dimensions: 10 ft (L) x 5 ft (W) x 6-8 ft (H) for a nominal volume of 300-400ft3

v. Arched or flat roof are both acceptable

b. Features – see sketches in Appendix B

i. Furnace to be placed on beams ~8-12 in (H) forming a similarly sized space under the furnace near the front wall. This is primarily to facilitate the use of a rolling shop crane to mount burners/bungs to the front wall of the furnace, whereby the wheels may pass slightly under the furnace.

ii. Rectangular bung for mounting burners is to be bolted to the front of the furnace

1. Rectangular bung must cover and seal an opening 36 in (W) x 72 in (H)

2. Include lift point features on the rectangular bung to facilitate removal and installation.

3. Rectangular bung must be adaptable to accept different burner flange mounts (Fig. B.1.a) to accommodate the following configurations (not simultaneously):

a. A centrally-mounted burner fired horizontally (direct-fired, free flame) – Figure B.2.a

b. A centrally-mounted burner fired into a tube (for testing confined flames in indirect air heaters) – Figure B.2.b

i. Firing tube will be procured separately from the furnace

ii. Mounting flange for firing tube is to mate to the rectangular bung

iii. Anticipated firing tube diameter range: 12-24 in

c. A radiant tube (e.g., singled-ended, U-Tube, W-Tube) with recuperation (centrally mounted, inlet/exhaust vertically oriented for U- and W-Tubes) – Figure B.2.c

i. Radiant tube will be procured separately from the furnace.

4. The rectangular flange from the supplier will be manufactured to accept a centrally-mounted burner fired horizontally (direct-fired, free flame, Figure B.2.a) for furnace commissioning; burner flange drawing to be provided by the ANL

5. The supplier will provide modular refractory/insulation material to fill in the rectangular opening around the burner tile for different firing configurations.

iii. Furnace floor must be structural enough to support the weight of a free-standing wall constructed from fire brick, refractory blocks, or ceramic fiber. Free-standing wall will be approximately 24 in (W) x 6-8 ft (H). See Fig. B.2.c.

1. This provides an option to reduce the volume of the furnace for some test scenarios

2. Refractory/insulating material will be procured separately from the furnace

iv. Removable rear door (nominally 2 ft (W) x 5-6 ft (H)) on the rear wall of the furnace; to be designed by the supplier; vertical hoist system suggested; the purpose is primarily to facilitate access to the furnace when swapping between firing configurations (e.g., between direct-fired and radiant tube).

1. Integrated lock-out-tag-out features to be included on the rear door to prevent it from closing incidentally while workers are inside.

v. Refractory pylon material (e.g., cast refractory) shall be provided with the furnace to support firing tube and radiant tube test configurations from the furnace floor

vi. Water (coolant) tubes to be distributed on the interior of the primary side wall and floor to simulate a load/process.

1. Water (coolant) tubes must be removable from the furnace to accommodate low firing rate, high temperature testing

a. Vertically retractable tubes preferred on the primary side wall, but may be horizontally retractable; mechanism to be designed by the supplier

b. Horizontally retractable tubes to be installed along the furnace floor; mechanism to be designed by the supplier

c. Water (coolant) tubes must not obstruct optical access through the windows

2. Target peak cooling capacity: 2 MMBtu/hr (585 kW) maximum heat transfer to the coolant

3. Coolant system must be designed to withstand maximum furnace operating temperature (2400oF)

4. Anticipated flow rates up to 100 gpm (system max is 350 gpm)

5. Water (coolant) tubes must be leak free at fluid pressures up to 60 psig.

6. Consider including thermocouple ports to monitor coolant temperatures throughout coolant tube network

7. Include thermocouple ports at both the coolant inlet and outlet of the furnace (to quantify heat rejection via coolant flow)

8. An existing 2-dry cooler system in the facility will be utilized to circulate coolant and dissipate heat

a. Propylene glycol-water mix (40%-60% blend)

b. Max flow rate: 350 gpm (175 gpm per each cooler)

c. Heat Capacity: 2.9 MMBtu/hr (1.45 MMBtu/hr per each cooler)

d. Additional details in Appendix D

vii. Exhaust flue, stack, and damper to be included in the furnace design; Supplier will only fabricate the exhaust flue attached to the furnace, ANL will procure/construct the exhaust stack/chimney (see 3.b.vii.7)

1. Preferred exhaust flue location in the roof of the furnace (as sketched in Appendix B)

2. Supplier to recommend a lining strategy for the exhaust flue and chimney so that they may operate without dilution

3. Exhaust flue to include a built in eductor to generate negative pressure in the furnace by supplying pressurized air through angled holes in the walls of the exhaust flue.

4. Exhaust stack to include adjustable damper mechanism. Consider a counterweighted flapper/lid damper at the very top of the chimney.

5. Exhaust stack (chimney) is intended to be natural draft (no forced ventilation); venting at 10 ft above the roofline (50 ft above grade)

6. The chimney/damper must be weather proof such that it survives wind/rain/storm conditions typical of Lemont, IL. It must not allow water to enter the furnace.

7. Supplier will fabricate the exhaust flue (including the eductor) from the furnace to an interface point (e.g., a flange), approximately 3-5 diameters from the furnace, to which the remainder of the exhaust stack will attach. ANL will fabricate, erect and secure the upper portion of the exhaust stack to the building under a separate contract.

c. Optical Access and Sensor Ports – see Appendix C

i. Primary side wall is to have 7x ∅6” high-temperature windows arranged along the centerline of the furnace with 18” spacing (center to center)

1. The center of the first window is to be 6” from the interior surface of the front wall of the furnace

2. Window mounting flanges are to be designed by the supplier.

3. Each window should have ~∅8” cutout[footnoteRef:1] in the refractory to increase the optical access field of view (see Appendix C). [1: Exact cutout dimensions to be determined by ANL once furnace wall thickness is defined by the supplier]

4. Every other window (3 out of 7) is to have tapered cutout1 in the refractory from ~∅8” at the window to ~∅18” at the interior wall of the furnace (see sketch in Appendix C) to accommodate wide angle optical diagnostics.

ii. Secondary side wall is to have 3x ∅6” high temperature windows arranged along the centerline of the furnace with 18” spacing (center to center)

1. The center of the first window is to be 6” from the interior surface of the front wall of the furnace

2. Window mounting flanges are to be designed by the supplier.

3. The middle window shall have a tapered cutout1 in the refractory from ~∅8” at the window to ~∅18” at the interior wall of the furnace to accommodate wide angle optical diagnostics

4. The other two windows shall have ~∅8” cutout1 in the refractory to increase the optical access field of view (see Appendix C).

iii. Roof is to have 3x ∅6” high temperature windows arranged along the horizontal centerline of the furnace with 18” spacing (center to center)

1. The center of the first window is to be 6” from the interior surface of the front wall of the furnace

2. Window mounting flanges are to be designed by the supplier.

3. The middle window shall have a tapered cutout1 in the refractory from ~∅8” at the window to ~∅18” at the interior wall of the furnace to accommodate wide angle optical diagnostics

4. The other two windows shall have ~∅8” cutout1 in the refractory to increase the optical access field of view (see Appendix C).

iv. Rear wall is to have 1x ∅6” high temperature window aligned with the burner axis on the front door of the furnace.

1. Window mounting flanges are to be designed by the supplier.

2. Window should have ~∅8” cutout1 in the refractory to increase the optical access field of view (see Appendix C).

v. At least two angled windows (2 x ∅6”) in either the primary or secondary side wall, oriented toward the center of the front door to visualize inside the burner tile.

1. Angled windows may be aligned with the centerline of the furnace (as sketched in Appendix C) or placed above the centerline

2. One of the angled windows is to be placed 24-36” downstream of the burner and the other angled window 60-72” downstream of the burner.

3. Window should have ~∅6” cutout in the refractory

vi. Furnace Threaded Instrumentation Ports (Qty: 70). Distributed on all sides of the furnace (front, rear, sides, top). Furnace supplier to suggest exact distribution

1. Qty: 40 – 1/2” NPT (e.g., for thermocouples, pressure transducers, heat flux probes)

2. Qty: 20 – 1” NPT

3. Qty: 10 – 2” NPT

a. For water cooled probes and larger sensors

b. At least Qty: 2 angled toward the center of the burner tile

vii. Exhaust flue threaded instrumentation ports (Qty: 4); for emissions sampling and pressure/temperature measurements

1. Qty: 4 – 1/2” NPT; 2-3 ft downstream of the furnace box; 2-3 ft upstream of the eductor

d. Materials

i. Refractory lining rated for 2800°F (1538oC).

1. Total wall thickness and material selection to be determined by the supplier to comply with thermal rating (Section 1).

2. Lining to be poured or equivalent

ii. The shell material and thickness is to be dictated by structural/thermal load requirements of the furnace, design features, refractory, and process water routing.

iii. Structural elements (beams, columns, plating) are to be designed by the supplier so as not to interfere with optical access

iv. Window material is to be quartz or other suitable material for high temperature operation and of high transmissivity from UV (at least 300 nm) to IR (4 m); window gasket material to be recommended by supplier

1. Supplier to design window mounting/fixturing, accounting for structural integrity and thermal expansion

2. Supplier to specify window cooling strategy (such as purge gas) and limits for windows (max rate of temperature change (thermal shock), thermal gradient limits, max window surface temperature, peak radiant flux, etc.)

3. Supplier must provide window mounting instructions including torque specs and bolt pattern tightening sequence; Windows must be removable by Argonne personnel;

4. If required, windows shall be numbered/marked for their corresponding port on the furnace to avoid mixing and matching.

5. Consider having windows shipped separately from the furnace to be installed in the furnace at ANL site by supplier

6. Supplier will provide metal “window blanks” for all window ports/flanges; Furnace must be fully operable with either metal “window blanks” or with transparent windows installed.

v. Instrumentation ports must ship with threaded plugs installed. Furnace must be fully operable with plugs installed.

vi. Exterior finish is to be high temperature paint

4. Facility Fuel/Air Supplies (for context)

a. Natural Gas (Pipeline)

i. Supply Pressure: 8-10 psi

ii. Max Flow: 106 kg/hr (5400 SCFH)

iii. Excess Air Target: 0-100% (λ: 1-2)

b. Hydrogen (Liquid Storage)

i. Supply Pressure: 120 psi (gaseous, pre-vaporized)

ii. Max Flow: 44 kg/hr (18,000 SCFH)

iii. Excess Air Target: 0-200% (λ: 1-3)

c. Air (Blower to be procured separately)

i. Supply Pressure: 70 in w.c.

ii. Max Flow: 3500 kg/hr (120,000 SCFH)

iii. Turndown ratio: 5:1

iv. Electric heaters to be procured for up to 900-1100oF (preferably up to 1800oF) air preheat

v. Oil-free air compressor available for up to 816 kg/hr (24,000 SCFH) at 100 psi

Technical Specifications, Appendix A:

Facility Layout – Furnace space claim shown in the lower right-hand corner

Technical Specifications, Appendix B:

Furnace Concept Sketches, assuming 10 ft (L) x 5 ft (W) x 8 ft (H) interior with 1 ft thick walls

Figure B.1: Furnace Design Features

Figure B.2: Furnace firing configuration options

Technical Specifications, Appendix C:

Windows and Insulation Cutouts Sketches

Above View of Furnace with semi-transparent walls

Standard Window Schematic (6” diameter window with 5” clear aperture after mounting, 8” diameter insulation cutout)

Wide-angle Window Schematic (6” diameter window (8” preferred) with 5” clear aperture after mounting (7” preferred), 8” diameter insulation cutout, tapering radially to 18-20”)

Technical Specifications, Appendix D:

Existing Highbay Coolant System Specifications

Technical Specifications, Appendix E:

Safety codes and standards to potentially govern furnace construction and supporting facility.

ASME B31.12 (Hydrogen Piping and Pipelines): Critical for all piping, fittings, and valves conveying hydrogen or hydrogen blends. Specifies material selection to prevent hydrogen embrittlement (e.g., low-carbon austenitic stainless steels like 316/316L), welding requirements, and non-destructive examination.

ASME B31.3 (Process Piping): Serves as the baseline design code for fuel blending skids, natural gas supply manifolds, and inert purge lines.

NFPA 2 (Hydrogen Technologies Code): The comprehensive standard for hydrogen generation, storage, piping, and dispensing. Dictates separation distances, leak detection, and mechanical piping room requirements.

NFPA 56 (Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems): Governs commissioning, de-inventorying, and inert (nitrogen) purge procedures for both fuel lines.

CGA G-5.4 (Standard for Hydrogen Piping Systems at Consumer Locations) & CGA G-5.5 (Hydrogen Vent Systems): Standards from the Compressed Gas Association governing outdoor-to-indoor header installations, manifold routing, and proper design of hydrogen discharge/vent stacks (including flame arrestor criteria, condensation drainage, and lightning mitigation).

NFPA 86 (Standard for Ovens and Furnaces): The core standard governing industrial furnaces, test chambers, and combustion enclosures.

ASME CSD-1 (Controls and Safety Devices for Automatically Fired Boilers): if incorporates aux closed-loop thermal/steam generation units.

NFPA 45, 68, 69, 70, 497

ISA 84/IEC 61511

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