This previous week I have been researching about including a Manometer in the design. This is a fundamental safety feature which will reduce risks for the people when using the Biogas Digester, noting if the pressure is at a stable point.

My team are now looking into the dimensions of the digester and also what materials can be used and the gas which is yielded from these materials.

Within the next few weeks, we will begin the typing up of the instruction manual.


Meeting with Dan

We met with a representative from Engineers without border, Dan (nice meeting you if you’re reading this) who gave us great feedback. Taking on board his advice, we are working back from the start to correctly go about assessing solutions to the issues regarding fuel for cooking.

For next week, we are researching about other solutions other than biomass. Researching into Tidal energy, Solar energy etc… Looking into the advantages and disadvantages of each of the other possible solutions, as engineers we have to remember our responsibilities in creating solutions which are economically, socially and environmentally correct.

Gas storage and pressure is still an issue we are looking to resolve, anti-flatulence drugs may be needed!



We have a preliminary design made on Solidworks which will be improved and updated in due course. Matthew is producing a presentation to be shown to the representative from EWB coming in next week. We hope to finalise our design and costing within the next 2 weeks and then start on creating a instruction manual.

The 2 designs we have in mind both have the same basic digester designs but differ with the storage of the gas either storing within the inner tubes of vehicle tires or within another tank/ARTI design.

Design Research

This week we researched into possible designs of a bio-gas digester. There is a generic design for the digester itself but the variance of the systems are due to differences with how the gas is collected and stored.

In the following week, we will research into two possible designs for collecting the bio-gas produced. It will be either collecting the gas within a separate (water tank) gas tank collector or storing the gas within the inner tubes of a vehicles tyre. Both of these ideas highlight the issue of the pressure in regards to the gas which would be needed to transport and store  the gas from the digester.

Next session, an initial design on paper will be concluded and also a power point produced to be shown to a representative of Engineers without borders