Biogas Appliances

Biogas stoves are made in two parts: the burner itself, which mixes gas and air and feeds it to the flame ports, where it burns; and the frame within which it sits, which uses the flame to heat cooking pots or to generate light or use the heat in some other way. The frame for a stove supports the burner on legs and holds cooking pots the right distance away from the flame for effective heating. See the images below, look out for the frame (in red) and the burner.

The amount of gas that flows into the burner is controlled by the jet, a hole which is carefully sized. The air and biogas are mixed and fed to a ‘manifold’ which feeds the flame ports, where it burns. The burner ports are drilled into a shaped cap, which can be removed for cleaning if food is spilled into the burner ports.

Find out more

HH layout

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Kikati open day

Najjembe Sub-County, Buikwe District is found 51 km along Kampala-Jinja highway. Kikati is 3 km off the highway. This is close to Kampala to allow easy access for transporting samples to the lab, recharging battery packs for field analyses etc. The village includes ~ 400 households.  The Mabira Forest Reserve is a rainforest area covering about 300 km² in Uganda located mostly in Mukono and partly in Kayunga Districts. The towns surrounding Mabira Forest Reserve include Lugazi, Najjembe, Buikwe, Kangulumira, Bukoloto, and Nakifuma. Mabira Forest Reserve has been protected since 1932. Mabira Forest Reserve (31,293 ha) is a forest management area consisting of six central forest reserves e.g. Mabira, Namukupa, Nadagi, Kalagala Falls, Namawanyi, and Namananga.

Eligible members from the 24 households who have been selected by Green Heat for biogas digesters, gasifer stove and Jompy boilers technologies will have a study tour to operational biogas digesters. They will talk to biogas users to get a user experience and learn what to expect should they get biogas digesters installed. 

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Open Day Running Order

  1. Formal introduction from the leaders and the visiting team.
  2. Introduce of the purpose of the Open Day.
  3. Show the video clips of Jane’s and Edward’s interviews.
  4. Show the video clip of the green heat builder taking them through the construction and function of how a fixed dome digester works.
  5. Go directly to the Biogas Info Line exhibition.
  6. Open discussion, questions and answers, Biogas Doctor discussion
  7. Closing remarks.

See you next time

Ashden Awards 2014 shortlist is out….

Shortlists have been announced for the 2014 Ashden Awards, which uncover and champion the most exciting low-carbon enterprises and programmes in the UK and developing world. A total of 61 green energy organisations and programmes from 17 countries have been shortlisted across 4 categories of Awards, which are now in their 14th year.

UK Ashden Awards shortlist

Abundance NRG, Alquist, Acuflow Distribution (UK), Change Agents UK, Chop-Cloc, Decarbon, Demand Logic, The DoNation, TreeStation, Global Action Plan, Lime Technology, OVESCO, Pilio, Pure Leapfrog, T4 Sustainability, Ventive and Your Homes Newcastle.

International Ashden Award shortlist

African Clean Energy, All Power Labs, CV Kreasi Daya Mandiri, The Design Group, Ecosystems Research and Development Bureau, Enzen Global Solutions, Greenway Grameen Infra, Green Heat, Greenlight Planet, Infosys Ltd, Kéré Architecture, Mera Gao Micro Grid Power, Off.Grid:Electric Tanzania, Promethean Power Systems, Service Humanitaire de Développement, Proximity Designs, Rajasthan Horticulture Development Society, Signet EnerTech, Sakhi Unique Rural Enterprise, SimGas, Société Générale Haitienne de Transferts, Sustainable Green Fuel Enterprise, Total Access to Solar (TATS), UPM Umwelt-Projekt-Management GmbH, and Visionary Empowerment Programme.

Eurostar Ashden Awards for Sustainable Travel shortlist

Bespoke Logistics Solutions, Cambio, Co-wheels Car Club, Ecotricity, iDBUS, Living Streets, Pignon sur Rue, Taxistop, Tisséo, Mountain Wilderness, Provincie Limburg and Stad Mechelen.

Ashden School Awards shortlist

Ashton Vale Primary School, The Churchill School, Edwalton Primary School, St Faiths, Sir George Monoux College, Queen Elizabeth II High School and Woodhouse College.

Finalists for each Award category will be announced in early April, with Awards to be presented at a ceremony at the Royal Geographical Society in London on 22 May. The ceremony will be hosted for the second year running by broadcaster and cultural commentator Emma Freud.

Ashden Award winners will receive a cash prize of between £5,000 and £40,000, a platform to promote their work and tailored support to grow even further.

Building, Serving, Learning: Biogas in Uganda

This service-learning opportunity partners undergraduate and graduate students from Makerere University in Uganda with their Nelson Institute counterparts to design and construct a biogas system at the Lweza Primary School in Uganda. The system will convert a mixture of latrine, food, and animal wastes into a clean-burning source of cooking fuel and organic fertilizer. The system will provide 700 Ugandan children and 20 teachers with improved public hygiene and a reliable source of renewable energy while empowering Ugandan graduate and undergraduate students with applied environmental skills training from the UW Madison.

Ugandan faculty and students will also be exposed to new educational methods contained within service-learning concepts. Baldwin support leverages existing university resources and expertise to extend on-going sustainability outreach efforts internationally by building upon five UW programs: (1) Nelson Institute Community Environmental Scholars Program (CESP). CESP promotes service-learning among students who have been historically underrepresented in environmental studies. This project also supports.

Digester under construction at Lweza Primary School.
Digester under construction at Lweza Primary School.

Nelson’s ongoing goal of expanding service learning and community-based research experiences for graduate students. Nelson’s further goal, to develop sustained endowed support for such activities, will be constructed in part around the experiences from this project. (2) The Village Health Project (VHP). Founded in 2006 by UW students, this registered 501(c)(3) non-profit supports projects that improve sanitation, nutrition, and education in Uganda. (3) College of Agricultural & Life Sciences, Health & Nutrition program, which supports ongoing student involvement in the Lweza community. (4) Global Health Institute (GHI). GHI seeks to support research, education, and outreach initiatives that bridge global health and energy policies. (5) NSF CHANGE-IGERT. Anaerobic digester research and outreach was initiated in 2010 as part of a graduate capstone course with the Wisconsin Bioenergy Institute. In June 2012, UW graduate students and alumni led a team of West Point cadets from the US Military Academy to construct a biogas system at a school in Uganda that serves 1400 students. The proposed project builds upon lessons learned from this experience.

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