
Fluids and Combustion Facility (FCF), Combustion Integration Rack (CIR) during testing in the Structural Dynamics Laboratory (SDL). The Fluids and Combustion Facility (FCF) is a set of two International Space Station (ISS) research facilities designed to support physical and biological experiments in support of technology development and validation in space. The FCF consists of two modular, reconfigurable racks called the Combustion Integration Rack (CIR) and the Fluids Integration Rack (FIR). The CIR and FIR were developed at NASAʼs Glenn Research Center.

Combustion Integrated Rack (CIR)

Combustion Integrated Rack (CIR)

Combustion Integrated Rack (CIR)

Combustion Integrated Rack (CIR)

ISS032-E-014574 (7 Aug. 2012) --- NASA astronaut Joe Acaba, Expedition 32 flight engineer, works on the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station.

NASA Glenn engineer Christopher Mroczka inspects the gas-jet burner within the Advanced Combustion via Microgravity Experiments, ACME insert for the Combustion Integrated Rack, CIR. The apparatus allows researchers to conduct experiments with flames of gaseous fuels on the International Space Station, ISS

ISS040-E-008521 (9 June 2014) --- NASA astronaut Reid Wiseman, Expedition 40 flight engineer, removes and replaces a new manifold bottle in the Combustion Integration Rack (CIR) in the Destiny laboratory of the International Space Station.

The combustion chamber for the Combustion Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown extracted for servicing and with the optical bench rotated 90 degrees for access to the rear elements. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

The combustion chamber for the Combustion Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown in its operational configuration. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

The combustion chamber for the Combustion Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown opened for installation of burn specimens. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

iss058e026380 (Feb. 26, 2019) --- Astronaut David Saint-Jacques of the Canadian Space Agency is inside the U.S. Destiny laboratory module working on the Combustion Integrated Rack. Saint-Jacques replaced fuel flow controllers inside the device for the Advanced Combustion via Microgravity Experiments which are a set of five independent studies of gaseous flames.

iss071e439784 (Aug. 5, 2024) --- NASA astronaut and Expedition 71 Flight Engineer Mike Barratt replaces fuel bottles and other components inside the Combustion Integrated Rack located inside the Intenational Space Station's Destiny laboratory.

"NASA astronaut Karen Nyberg,Expedition 36 flight engineer,works with the Combustion Integrated Rack (CIR) Alignment Guide Removal.

iss049e003808 (9/15/2016) --- NASA astronaut Kate Rubins is photographed replacing two Multi-user Droplet Combustion Apparatus (MDCA) Igniter Tips as part of the Combustion Integration Rack (CIR) Igniter Replacement operations. The CIR is used to perform combustion experiments in microgravity. The CIR can be reconfigured easily on orbit to accommodate a variety of combustion experiments. It consists of an optics bench, a combustion chamber, a fuel and oxidizer management system, environmental management systems, and interfaces for science diagnostics and experiment specific equipment.

ISS018-E-017796 (5 Jan. 2009) --- Astronaut Sandra Magnus, Expedition 18 flight engineer, works on the Fluids and Combustion Facility (FCF) Combustion Integration Rack (CIR) Passive Rack Isolation System (PaRIS) in the Destiny laboratory of the International Space Station.

Combustion Integrated Rack (CIR)

The combustion chamber for the Combustion Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown extracted for servicing. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

The optical bench for the Fluids Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown extracted for servicing. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

The optical bench for the Fluids Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown extracted for servicing and with the optical bench rotated 90 degrees to access the rear elements. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

ISS044E064666 (08/20/2015) --- NASA astronaut Kjell Lindgren replaces items inside the Multi-user Droplet Combustion Apparatus found inside the station’s Combustion Integrated Rack (CIR.) The CIR houses hardware capable of performing combustion experiments to further research of combustion in microgravity.

jsc2024e021222 (3/21/2024) --- Solid Fuel Ignition and Extinction (SoFIE) insert supports the Growth and Extinction Limit (GEL) investigation test image taken in the Combustion Integrated Rack (CIR). This image was taken just prior to flame extinction while the green LED was flashing on. The LED allows the fuel surface to be seen during the burn, so that several important parameters can be evaluated, such as how far the flame is from the fuel and how much the fuel is heating up. The igniter wire appears in the camera view, but it is in the foreground and not near the flame. In the background on the left, an unburned acrylic sphere waits for its turn to be tested on another day.

iss072e747148 (March 18, 2025) --- NASA astronaut and Expedition 72 Flight Engineer Don Pettit inserts research hardware into the Combustion Integrated Rack located inside the International Space Station's Destiny laboratory module. Pettit was configuring the SoFIE-MIST, or the Solid Fuel Ignition and Extinction - Material Ignition and Suppression Test, investigation that is exploring the flammability of materials in microgravity to improve spacecraft fire safety.

iss072e747154 (March 18, 2025) --- NASA astronaut and Expedition 72 Flight Engineer Don Pettit inserts research hardware into the Combustion Integrated Rack located inside the International Space Station's Destiny laboratory module. Pettit was configuring the SoFIE-MIST, or the Solid Fuel Ignition and Extinction - Material Ignition and Suppression Test, investigation that is exploring the flammability of materials in microgravity to improve spacecraft fire safety.

The optical bench for the Fluid Integrated Rack section of the Fluids and Combustion Facility (FCF) is shown in its operational configuration. The FCF will be installed, in phases, in the Destiny, the U.S. Laboratory Module of the International Space Station (ISS), and will accommodate multiple users for a range of investigations. This is an engineering mockup; the flight hardware is subject to change as designs are refined. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo credit: NASA/Marshall Space Flight Center)

Testing of software with ground hardware for the Structue and Response of Spherical Diffusion Flames, s-Flame, experiment - of the Advanced Combustion via Microgravity Experiments, ACME, project conducted in the ISS Combustion Integrated Rack, CIR - by ACME Software Engineer Jeffrey Eggers, Operations Lead Angela Adams, and Planning Lead Melani Smajdek in the Telescience Support Center, TSC, also known as the Glenn ISS Payload Operations Center, GIPOC

Review of ISS data from the Structure and Response of Spherical Diffusion Flames (s-Flame) experiment - of the Advanced Combustion via Microgravity Experiments. ACME project conducted in the Combustion Integrated Rack, CIR - by ACME Project Scientist Dennis Stocker in the Telescience Support Center,TSC, also known as the Glenn ISS Payload Operations Center, GIPOC

ISS036-E-024485 (24 July 2013) --- European Space Agency astronaut Luca Parmitano, Expedition 36 flight engineer, uses a computer in the Destiny laboratory of the International Space Station.

iss072e519705 (Jan. 23, 2025) --- NASA astronaut and Expedition 72 Flight Engineer Nick Hague handles research hardware that is part of the Combustion Integrated Rack that enables safe fuel and flame research aboard the International Space Station.

FLUIDS COMBUSTION FACILITY COMBUSTION INTEGRATED RACK INTERNATIONAL MICROGRAVITY WORKING GROUP

FLUIDS COMBUSTION FACILITY COMBUSTION INTEGRATED RACK INTERNATIONAL MICROGRAVITY WORKING GROUP

iss058e008801 (Jan. 31, 2019) --- Astronaut David Saint-Jacques of the Canadian Space Agency replaces a control unit and a radiometer inside the Combustion Integrated Rack's (CIR) ACME (Advanced Combustion via Microgravity Experiments) Chamber Insert. The replacement work in the chamber was done on the Unity module's work surface area. The CIR is a fuel and flame research rack housed inside the Destiny laboratory module.

Combustion Integrated Rack (CIR)

COMBUSTION INTEGRATED RACK COMPONENTS

Combustion Integrated Rack (CIR)

Fluids and Combustion Facility (FCF) Combustion Integrated Rack (CIR) Ground Integration Unit (GIU) Modal Test in the Structural Dynamics Laboratory at NASA Glenn

Fluids and Combustion Facility (FCF) Combustion Integrated Rack (CIR) Ground Integration Unit (GIU) Modal Test in the Structural Dynamics Laboratory at NASA Glenn

Fluids and Combustion Facility (FCF) Combustion Integrated Rack (CIR) Ground Integration Unit (GIU) Modal Test in the Structural Dynamics Laboratory at NASA Glenn

Fluids and Combustion Facility (FCF) Combustion Integrated Rack (CIR) in the Acoustic Testing Laboratory (ATL), Camera file: G6QH5821

Fluids and Combustion Facility (FCF), Combustion Integration Rack (CIR) during testing in the Structural Dynamics Laboratory (SDL)

Fluids and Combustion Facility (FCF), Combustion Integration Rack (CIR) during testing in the Structural Dynamics Laboratory (SDL)

Fluids and Combustion Facility (FCF), Combustion Integrated Rack (CIR) during testing in the Structural Dynamics Laboratory (SDL)

iss050e035112 (1/24/2017) --- NASA astronaut Shane Kimbrough completing the Multi-user Droplet Combustion Apparatus (MDCA) reconfiguration to the Cool Flames Investigation (CFI) setup. The Combustion Integrated Rack (CIR) includes an optics bench, combustion chamber, fuel and oxidizer control, and five different cameras for performing combustion experiments in microgravity.

iss052e027048 (Aug. 4, 2017) --- Astronaut Peggy Whitson works on the Combustion Integrated Rack in the U.S. Destiny laboratory module.

ISS029-E-029756 (17 Oct. 2011) --- NASA astronaut Mike Fossum, Expedition 29 commander, works on the Combustion Integrated Rack / Fluids & Combustion Facility (CIR FCF) in the Destiny laboratory of the International Space Station.

ISS028-E-026402 (17 Aug. 2011) --- NASA astronaut Ron Garan, Expedition 28 flight engineer, works with the Combustion Integrated Rack (CIR) Fluids and Combustion Facility (FCF) in the Destiny laboratory of the International Space Station.

ISS028-E-026400 (17 Aug. 2011) --- NASA astronaut Ron Garan, Expedition 28 flight engineer, works with the Combustion Integrated Rack (CIR) Fluids and Combustion Facility (FCF) in the Destiny laboratory of the International Space Station.

ISS040-E-010502 (11 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with the Multi-user Drop Combustion Apparatus (MDCA) inside the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. The MDCA contains hardware and software to conduct unique droplet combustion experiments in space.

ISS038-E-024145 (30 Dec. 2013) --- NASA astronaut Mike Hopkins, Expedition 38 flight engineer, performs in-flight maintenance on combustion research hardware in the Destiny laboratory of the International Space Station. Hopkins replaced a Multi-user Droplet Combustion Apparatus (MDCA) fuel reservoir inside the Combustion Integrated Rack (CIR).

iss056e130654 (Aug. 10, 2018) --- The Combustion Integration Rack (CIR), pictured in its open configuration, is located in the U.S. Destiny laboratory module and includes an optics bench, combustion chamber, fuel and oxidizer control, and five different cameras for performing combustion experiments safely in microgravity.

iss059e103188 (6/14/2019) --- Photo documentation taken aboard the International Space Station (ISS) during the Fluids and Combustion Facility (FCF) Combustion Integration Rack (CIR) / Advanced Combustion via Microgravity Experiments (ACME) / Flame Design hardware replacement.

ISS040-E-010496 (11 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with the Multi-user Drop Combustion Apparatus (MDCA) inside the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. The MDCA contains hardware and software to conduct unique droplet combustion experiments in space.

iss064e040971 (March 9, 2021) --- NASA astronaut and Expedition 64 Flight Engineer Kate Rubins opens the Combustion Integrated Rack's combustion chamber to access ACME, or Advanced Combustion via Microgravity Experiments, hardware located in the U.S. Destiny laboratory module.

iss054e014673 (Jan. 5, 2018) --- Astronaut Joe Acaba works on wire connections and other maintenance tasks inside Combustion Integrated Rack gear.

ISS038-E-042754 (5 Feb. 2014) --- Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 38 flight engineer, works on the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. This research rack, which includes an optics bench, combustion chamber, fuel and oxidizer control and five different cameras, allows a variety of combustion experiments to be performed safely aboard the station.

ISS038-E-042758 (5 Feb. 2014) --- Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 38 flight engineer, works on the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. This research rack, which includes an optics bench, combustion chamber, fuel and oxidizer control and five different cameras, allows a variety of combustion experiments to be performed safely aboard the station.

ISS038-E-042747 (5 Feb. 2014) --- Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 38 flight engineer, works on the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. This research rack, which includes an optics bench, combustion chamber, fuel and oxidizer control and five different cameras, allows a variety of combustion experiments to be performed safely aboard the station.

iss050e034393 (1/18/2017) --- NASA astronaut Shane Kimbrough during Combustion Integration Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) Troubleshooting in the U.S. Laboratory. MDCA was removed from the CIR Combustion Chamber and spring fastener was repaired. The CIR is used to perform combustion experiments in microgravity. The CIR can be reconfigured easily on orbit to accommodate a variety of combustion experiments.

ISS025-E-009310 (26 Oct. 2010) --- NASA astronaut Scott Kelly, Expedition 25 flight engineer, works on the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station. Kelly set up an experiment run on the Fluids & Combustion Facility (FCF) with a new fuel reservoir, ground-assisted by Payload Operations Integration Center/Huntsville (POIC).

ISS025-E-009308 (26 Oct. 2010) --- NASA astronaut Scott Kelly, Expedition 25 flight engineer, works on the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station. Kelly set up an experiment run on the Fluids & Combustion Facility (FCF) with a new fuel reservoir, ground-assisted by Payload Operations Integration Center/Huntsville (POIC).

ISS028-E-009893 (26 June 2011) --- NASA astronaut Mike Fossum, Expedition 28 flight engineer, is pictured at the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS037-E-026918 (4 Nov. 2013) --- European Space Agency astronaut Luca Parmitano, Expedition 37 flight engineer, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS026-E-025294 (9 Feb. 2011) --- NASA astronaut Scott Kelly, Expedition 26 commander, works on the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

iss064e040953 (March 9, 2021) --- NASA astronaut and Expedition 64 Flight Engineer Kate Rubins replaces and cleans hardware supporting a suite of studies known as ACME, or Advanced Combustion via Microgravity Experiments, located in the Combustion Integrated Rack. Rubins performs the work on ACME's chamber insert in the Unity module's Maintenance Work Area.

ISS027-E-022522 (5 May 2011) --- NASA astronaut Ron Garan, Expedition 27 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS027-E-022529 (5 May 2011) --- NASA astronaut Ron Garan, Expedition 27 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS027-E-022523 (5 May 2011) --- NASA astronaut Ron Garan, Expedition 27 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS028-E-009889 (26 June 2011) --- NASA astronaut Mike Fossum, Expedition 28 flight engineer, is pictured near the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS034-E-023541 (9 Jan. 2013) --- NASA astronauts Kevin Ford (foreground), Expedition 34 commander; and Tom Marshburn, flight engineer, work with the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

iss056e021157 (June 19, 2018) --- Expedition 56 Flight Engineer Ricky Arnold of NASA (foreground) performs maintenance inside the Combustion Integrated Rack to set up the Advanced Combustion via Microgravity Experiments (ACME), a series of five independent studies of gaseous flames. Expedition 56 Commander Drew Feustel of NASA is seen in the background.

iss067e003872 (April 6, 2022) --- NASA astronaut and Expedition 67 Commander Thomas Marshburn configures the Combustion Integrated Rack's combustion chamber for the Solid Fuel Ignition and Extinction study to investigate material flammability and ways to improve fire safety in space.

ISS029-E-008337 (22 Sept. 2011) --- NASA astronaut Mike Fossum, Expedition 29 commander, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS027-E-022531 (5 May 2011) --- NASA astronaut Ron Garan, Expedition 27 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS029-E-008336 (22 Sept. 2011) --- NASA astronaut Mike Fossum, Expedition 29 commander, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS036-E-015521 (5 July 2013) --- NASA astronaut Karen Nyberg, Expedition 36 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

iss063e078755 (Aug. 27, 2020) --- NASA astronaut and Expedition 63 Commander Chris Cassidy replaces components inside the Combustion Integrated Rack to support a series of ongoing flame and fuel studies known as Advanced Combustion via Microgravity Experiments (ACME).

ISS020-E-043347 (26 Sept. 2009) --- NASA astronaut Michael Barratt, Expedition 20 flight engineer, works with the Multi-user Droplet Combustion Apparatus / Chamber Insert Assembly (MDCA CIA) in the Combustion Integrated Rack (CIR) located in the Destiny laboratory of the International Space Station.

iss067e003895 (April 6, 2022) --- NASA astronaut and Expedition 67 Commander Thomas Marshburn configures the Combustion Integrated Rack's combustion chamber for the Solid Fuel Ignition and Extinction study to investigate material flammability and ways to improve fire safety in space.

ISS036-E-015530 (5 July 2013) --- NASA astronaut Karen Nyberg, Expedition 36 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

ISS027-E-022532 (5 May 2011) --- NASA astronaut Ron Garan, Expedition 27 flight engineer, services the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS037-E-026919 (4 Nov. 2013) --- European Space Agency astronaut Luca Parmitano, Expedition 37 flight engineer, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS034-E-023546 (9 Jan. 2013) --- NASA astronaut Kevin Ford, Expedition 34 commander, works with the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

ISS026-E-025292 (9 Feb. 2011) --- NASA astronaut Scott Kelly, Expedition 26 commander, works on the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS029-E-008335 (22 Sept. 2011) --- NASA astronaut Mike Fossum, Expedition 29 commander, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS037-E-026916 (4 Nov. 2013) --- European Space Agency astronaut Luca Parmitano, Expedition 37 flight engineer, works with the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

ISS034-E-023544 (9 Jan. 2013) --- NASA astronaut Kevin Ford, Expedition 34 commander, works with the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

ISS034-E-023543 (9 Jan. 2013) --- NASA astronauts Kevin Ford (right), Expedition 34 commander; and Tom Marshburn, flight engineer, work with the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station's Destiny laboratory.

ISS034-E-007409 (12 Dec. 2012) --- NASA astronaut Kevin Ford, Expedition 34 commander, performs in-flight maintenance on the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station’s Destiny laboratory.

ISS034-E-007411 (12 Dec. 2012) --- NASA astronaut Kevin Ford, Expedition 34 commander, performs in-flight maintenance on the Combustion Integrated Rack (CIR) Multi-user Droplet Combustion Apparatus (MDCA) in the International Space Station’s Destiny laboratory.

iss064e029405 (Feb. 3, 2021) --- NASA astronaut and Expedition 64 Flight Engineer Kate Rubins removes research hardware from inside the Combustion Integrated Rack. She was replacing gear to support a suite of fuel efficiency, pollution and fire safety studies known as the Advanced Combustion in Microgravity Experiments, or ACME.

ISS028-E-013344 (26 June 2011) --- Japan Aerospace Exploration Agency astronaut Satoshi Furukawa, Expedition 28 flight engineer, is pictured near the Combustion Integrated Rack (CIR) Multi-user Drop Combustion Apparatus (MDCA) in the Destiny laboratory of the International Space Station.

iss056e130647 (Aug. 10, 2018) --- Astronaut Alexander Gerst of ESA (European Space Agency) works inside the Combustion Integrated Rack replacing gear for a set of five independent studies of gaseous flames called ACME, or Advanced Combustion via Microgravity Experiments.

ISS035-E-025557(22 April 2013) ---Multi-user Droplet Combustion Apparatus (MDCA) Hardware Replacement: Cassidy accessed the Combustion Integration Rack (CIR) Combustion Chamber and removed the MDCA Chamber Insert Assembly (CIA). He then replaced the MDCA Needle 1 due to a fuel line that was damaged during previous activities when the MDCA CIA was being removed from the Combustion Chamber.

ISS035-E-025557(22 April 2013) ---Multi-user Droplet Combustion Apparatus (MDCA) Hardware Replacement: Cassidy accessed the Combustion Integration Rack (CIR) Combustion Chamber and removed the MDCA Chamber Insert Assembly (CIA). He then replaced the MDCA Needle 1 due to a fuel line that was damaged during previous activities when the MDCA CIA was being removed from the Combustion Chamber.

The Fluids and Combustion Facility (FCF) is a modular, multi-user facility to accommodate microgravity science experiments on board Destiny, the U.S. Laboratory Module for the International Space Station (ISS). The FCF will be a permanet facility aboard the ISS, and will be capable of accommodating up to ten science investigations per year. It will support the NASA Science and Technology Research Plans for the International Space Station (ISS) which require sustained systematic research of the effects of reduced gravity in the areas of fluid physics and combustion science. From left to right are the Combustion Integrated Rack, the Shared Rack, and the Fluids Integrated Rack. The FCF is being developed by the Microgravity Science Division (MSD) at the NASA Glenn Research Center. (Photo Credit: NASA/Marshall Space Flight Center)

ISS042E017804 (11/28/2014) --- US Astronaut Terry Virts works to rotate out the Optics Bench during Combustion Integrated Rack (CIR) Imaging Package reconfiguration in the Destiny U.S. Laboratory of the International Space Station.

ISS030-E-013378 (20 Dec. 2011) --- NASA astronaut Dan Burbank, Expedition 30 commander, works on the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station.

ISS020-E-029879 (12 Aug. 2009) --- European Space Agency astronaut Frank De Winne, Expedition 20 flight engineer, works with the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station.

ISS034-E-037331 (31 Jan. 2013) --- NASA astronaut Tom Marshburn, Expedition 34 flight engineer, services the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station.

ISS020-E-042203 (26 Sept. 2009) --- NASA astronaut Nicole Stott, Expedition 20 flight engineer, works with the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station.