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Heat Transport Systems Lab
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The lab studies how heat is transferred and transported, from microsatellites to ice slurry.
AboutAbout the lab
Tackling heat-related challenges
The Heat Transport Systems Lab studies problems related to how heat is transferred and transported.
The lab is developing methods for reliably carrying out the thermal design of microsatellites, which are small and whose temperatures change easily, in a short period of time.
Its research also covers emitters that radiate heat only at specific wavelengths, and heat transfer in ice slurry, a mixture of ice particles and water.
In April 2026, the lab changed its name to the Heat Transport Systems Lab.
Key terms
- Thermal design
- Designing equipment by considering the flow of heat in and out, so that the temperatures inside stay within the range where components operate properly
- Metamaterial
- A material in which structures smaller than the wavelength of light are artificially arranged to give it optical and electromagnetic properties not found in natural materials
- Ice slurry
- A fluid made of fine ice particles mixed with water (or an aqueous solution). It can cool by using the heat absorbed as the ice melts
NewsLab news
Research topics for incoming fourth-year students are now available
Renamed the Heat Transport Systems Lab as of April 2026
ResearchResearch themes
The lab works on themes related to how heat is transferred and transported, including thermal design of microsatellites, wavelength control of radiant energy, and ice slurry. Its work ranges from thermal design of space hardware to fluids that transport cooling energy.
*Illustrative imageThermal Design of Microsatellites
Microsatellites retain little heat, so their temperatures change easily, and they must be developed in a short period of time. To carry out thermal design quickly without sacrificing reliability, the lab is developing a thermal design method that combines analysis with a small number of nodes and analysis with a large number of nodes.
*Illustrative imageWavelength Control of Radiant Energy
In drying furnaces, radiation at wavelengths that the solvent does not absorb was being wasted. The lab developed an emitter with a metamaterial structure of stacked metal, insulator, and metal layers, and succeeded in raising emissivity only in a specific wavelength range.
*Illustrative imageEnhancing the Melting of Ice Slurry
Ice slurry is a cooling medium that can carry a large amount of heat through the latent heat absorbed when ice melts. The lab is investigating a method of placing angled heat-dissipating fins inside a pipe so that many ice particles come into contact with the heat transfer surface, thereby enhancing heat transfer during melting.
MembersFaculty
The members of the Heat Transport Systems Lab consist of faculty, and doctoral (working professional), master's, and undergraduate students.As of 2026
- ProfessorTsuyoshi Totani
- Project ProfessorMasaharu Utsumi
- Project Assistant ProfessorDaisuke Noto
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “International Space Station radiators ESA21793420” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Thermal Design of Microsatellites: “F-1 CubeSat thermal vacuum test” Thuvt / CC BY-SA 3.0 (cropped)
- Wavelength Control of Radiant Energy: “Heating-element” Cactuscowboy / CC BY-SA 4.0 (cropped)
- Enhancing the Melting of Ice Slurry: “Slurry ice under microscope” Michael Froehlich http://www.micha-froehlich.de / Public domain (cropped)
- Related lab (Flow Control Lab): “F-16XL Scamp Flow Visualization Test - GPN” NASA / Public domain (cropped)
- Related lab (Engine Systems and Next-Generation Fuels Lab): “Internal combustion engine pistons of partial cross-sectional view” Mj-bird / CC BY-SA 3.0 (cropped)
- Related lab (Space Environment Systems Engineering Lab): “Rocket Engine Hot Fire” camelNotation / CC0 (cropped)
- Related lab (Nuclear Reactor Engineering Lab): “Cerenkov Effect” United States Nuclear Regulatory Commission / Public domain (cropped)
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