Thermal control system
Argotec offers custom solutions for thermal management both for ground and space applications. These thermal control systems are based on passive thermal exchange in which heat transfer is efficiently promoted by means of the evaporation/condensation of a working fluid.
Passive thermal devices are able to efficiently transfer heat once they are mechanically and thermally connected to a hot source on one end and to a heat sink (e.g. a finned structure, a cold plate, or a radiator) on the other end.
The major advantages with respect to traditional single-phase heat transfer devices are the ability to transfer heat with a very small temperature drop and to create a nearly isothermal surface for temperature stabilization. Moreover the use of passive devices avoids the need of active components such as valves and pumps, with advantages in terms of mass and cost reduction, design simplification and improved reliability.
Argotec heritage in the field of two-phase heat transfer devices includes the design, development and qualification of heat pipes, loop heat pipes, and pulsating heat pipes.
The Axially Grooved Heat Pipes are passive thermal devices. They require no external power other than the heat they transfer. They have no moving parts, like mechanical pumps and fans used to circulate the working fluid in traditional systems, which makes them more reliable, free of vibration and completely silent.
The amount of heat that can be transported is typically several orders of magnitude larger than single phase devices for a geometrically equivalent system. Thanks to the two-phase approach the temperature difference between hot and cold parts is lower than the single-phase systems.
Argotec heritage on heat pipes includes several tests performed on-board the International Space Station, confirming the performances of these systems also in microgravity conditions. Moreover long-term repeatability has been demonstrated by means of ground test campaign and on-orbit tests.
The Loop Heat Pipes are passive thermal devices. They require no external power other than the heat they transfer. They have no moving parts, like mechanical pumps and fans used to circulate the working fluid in traditional systems, which makes them more reliable, free of vibration and completely silent.
The Loop Heat Pipes are essentially composed of two main parts, the evaporator and the condenser.
The evaporator zone is devoted to the evaporation of the working fluid thanks to the heat input. This zone includes a solid case and a porous part, called wick, usually made by means of powder sintering.
The condenser zone consists of a meandering tube covering a wide surface used to reject the heat transported by the working fluid.
Argotec developed several loop heat pipes with different dimensions in order to cover a power range between 20 and 400 Watts. Moreover Argotec tested different fluids able to work in a temperature range between -80°C and 150°C.
These systems are more suitable when the heat needs to be transferred across longer distances with respect to axial heat pipe applications. A particular application of the Loop Heat Pipes is the heat rejection on surfaces, as an example in the radiative thermal panels of spacecraft.
The Pulsating Heat Pipes are passive thermal devices. They require no external power other than the heat they transfer. They have no moving parts, like mechanical pumps and fans used to circulate the working fluid in traditional systems, which makes them more reliable, free of vibration and completely silent.
Pulsating Heat Pipes are generally put in direct contact with surfaces where multiple hot and cold areas can be present.
Pulsating Heat Pipes can be directly embedded in structures by means of Direct Metal Additive Manufacturing. This approach allows to develop light structures with enhanced thermal performance and with higher relative stiffness.
Argotec developed and tested different Pulsating Heat Pipes embedded in mechanical structures. This solution is very appealing in applications where lightness and thermal performance are crucial, as example in CubeSat.
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Today “The 19th International Heat Pipe Conference” is starting in Pisa! This year Argotec is a member of the organizing Commitee and the sponsor of the Space Challenge “Two-Phase Heat Transfer for Cubesats”. Are you curious about our research and development activities in the thermal sector? Meet us on 11-12-13-14 June at Argotec stand – […]
Made in Italy excellence again flies through the star! Argotec is proud to present ATENA (Advanced Testing Emulator for Nanosatellite Arm), the innovative robotic system for the testing of nanosatellites, developed in collaboration with Comau. This system, for which Argotec has registered a patent for the technological innovations, provides immediate verification and constant monitoring of […]
Tanta tecnologia italiana nella corsa allo spazio On May the 12th David Avino, Argotec Managing Director, took part in “A spazzo nello spazio” a event organized by Focus during the Bergamo leg of Panorama d’Italia tour. He presented Argotec new project Fly on Space Rider with Argotec.
On May the 4th we met curious and enthusiastic students at Bocconi University. During the Business History lesson David Avino, our Managing Director, described to a crowded classroom Argotec case history. It was an honour and a pleasure to discuss our company history and vision. Here some images about the event:
Have you ever dreamt of launching your project to space? Now, you can! Meet us at A&T event 2018 and discover Fly on Space Rider with Argotec. See you on 18-19-20 April at Argotec stand – G44 – Oval Lingotto Torino.
Today Argotec received the “Premio Imprese per Innovazione” organized by Confindustria and the prestigious “Premio dei Premi” organized by Presidenza del Consiglio dei Ministri. During the awards ceremony, David Avino, Argotec’s Managing Director, accepted the award at Camera dei deputati in the presence of the Camera dei deputati president, On. Laura Boldrini. Here some images […]
Argotec is a member of the Organizing Committee at the 19th International Heat Pipe Conference. In this context Argotec sponsors the Space Challenge: “Two-Phase Heat Transfer for Cubesats”. This Challenge seeks to foster the creation of new – or to advance existing – two phase heat transfer systems for application on board CubeSats or small satellites (maximum size […]
On September the 30th the Italian astronaut Paolo Nespoli has enjoyed an authentic Italian espresso thanks to ISSpresso on board the International Space Station (ISS) to celebrate International Coffee Day. Here some pictures about the operations: Read the press release: Press Release – ISSpresso International Coffee Day_EN Press Release – ISSpresso International Coffee Day_IT
On September the 14th the Italian astronaut Paolo Nespoli successfully conducted the ARTE experiment onboard the ISS. Argotec engineers supported in real time all the operations from the company Mission Control Centre. Here some pictures about the operations: Read the press release: ARTE_Comunicato Stampa_Argotec_ASI
We are so proud to announce that Argotec has been selected to receive the “2017 Innovation in Technology Development and Demonstration Award” for the ARTE project. On July 20th, our Managing Director David Avino accepted the award at the “ISS Research and Development Conference” in Washington DC organized by the American Astronautical Society. Argotec has been […]
Today Argotec was pleased to host the Italian astronaut Paolo Nespoli at Turin headquarters. In a view of the VITA mission, Paolo Nespoli visited the company laboratories. He spoke with the team of engineers who designed and assemblied some of his mission experiments. During the visit Paolo Nespoli conducted a training session with Argotec instructors […]