Capillary structures could provide lower risk water recycling

Rows of small structures

Capillary Evaporator prototype with transparent capillary structures filled with test fluids. Credits: IRPI LLC

Human use a lot of water for drinking and hygiene. Recycling is a key strategy to make the water that is launched into space last longer. Existing water recycling methods in space use harmful chemicals or considerable energy, and do not recycle 100% of the water. Reliability is crucial as well. So the search continues for new approaches to improve the water recycling process.

NASA is considering capillary structures for water recycling. Capillary action involves electrostatic forces literally pulling water through small tubes, similar to how drops of water will hang on objects despite the force of gravity pulling them away. NASA’s capillary structures investigation studies “a new method of water recycling and carbon dioxide removal using structures designed in specific shapes to manage fluid and gas mixtures in microgravity.” The capillary structures equipment is made up of small, 3-D printed geometric shapes and sizes sizes (see above image).

Continue reading

Airbus ESA Advanced Closed Loop System (ACLS)

Two technicians point to large instrument box.

ACLS technology demonstrator generates oxygen and water in a closed system

The Advanced Closed Loop System (ACLS) is an advanced life support system that has been developed by Airbus for the European Space Agency (ESA) to be used as a technology demonstrator on the ISS, in the Destiny module, from summer 2018. The ACLS will be installed in the HTV-7 space transporter at the Tanegashima Space Center in Japan and is due to be transported to the ISS in August 2018. It is set to be operated for a period of one year.

Continue reading

Orbital Genomics concept

In addition to blogging, SustainSpace engages in concept and product development. SustainSpace authors Afshin Khan and Mark Ciotola have developed the Oribital Genomics venture converted with astro culture. Recently, the Orbital Genomics concept won ESA Space Explorations Masters prize. 

Problem

Plants provide food, breathable air and psychological benefits. With plans materializing for a Deep Space Gateway, Lunar Village and the Mars community, there may be a lot more people living in the lower Earth orbit and microgravity environments, besides on the International Space Station. However, food production in space is still in its nascent stage. Existing prepackaged astronaut food is not a healthy option for long haul space missions. There is no way to regularly transport fresh fruit and vegetables. It is becoming increasingly evident that we must be able to successfully grow food in space.

 

Plant experiments done on ISS have presented various challenges, such as, years of preparation, little iteration and fewer conclusive results. Furthermore, ISS is limited in its genetic analysis capabilities and there are limited astronaut hours for dedicated biological analysis. Hence, for at least the next decade or more, most analysis of plants and seeds grown in space must be accomplished on Earth, which is not feasible.

Solution

Agile approaches by Orbital Genomics aims to adapt, develop and finally grow crops in space to solve the food production challenge in lower Earth orbit and planetary bodies of interest. Additionally benefit agriculture on Earth.

Continue reading

Circles containing crops are superimposed on squares containing dry, unplanted or fallow land.

SustainSat brings satellite approaches to Earth

SustainSat is a platform that can be used as either a prototype for CubeSats or as an Earth-based sensor and data-logging platform. It is intended as a low-cost, barebones way to learn about the general categories of technologies used in cubesats as well as to use those technologies for sustainability purposes on Earth.

Continue reading

First Flowers Grown on International Space Station

Commander Scott Kelly (Expedition 46) shared photographs of a blooming zinnia flower in the Veggie plant growth system aboard the International Space Station (16 January 2016).  “Yes, there are other life forms in space! #SpaceFlower #YearInSpace”, Kelly wrote.

Flowers growing on International Space Station

Flowers growing on International Space Station (Credit: NASA)

This flowering crop experiment began on Nov. 16, 2015, when NASA astronaut Kjell Lindgren activated the Veggie system and its rooting “pillows” containing zinnia seeds. The Veggie provides lighting and nutrient delivery, but utilizes the cabin environment for temperaturecontrol and as a source of carbon dioxide to promote growth, according to NASA.

Continue reading

Call for a Open Source Life Support Toolset

Global Village Construction Set

Global Village Construction Set

Open Source Ecology’s Global Village Construction Set provides a “modular, DIY, low-cost, high-performance platform that allows for the easy fabrication of the 50 different Industrial Machines that it takes to build a small, sustainable civilization with modern comforts.” An important point about machine tools is that they are a sort of ecosystem, where the various tools are used in combination to build each other. For example, a lathe can be used to make many of the components required for a milling machine, and vice versa. This construction set is also open source.

Continue reading