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Mitigation of Ulaanbaatar city's air pollution - from source aportionment to ultra-low emission lignite burning stoves

  • Authors: Lodoyasamba, S. , Pemberton-Pigott, C.
  • Date: 2011
  • Subjects: Domestic stoves , Emissions , Air pollution - Mongolia - Ulaanbaatar , Clean energy
  • Type: Article
  • Identifier: uj:6245 , http://hdl.handle.net/10210/8189
  • Description: The extraordinary air pollution in Ulaanbaatar (up to 4 200 μg m-3) was monitored using Nucleopore® filters and particle counters. Particle analysis confirmed low temperature coal combustion as the major air quality problem in poor districts. High time-resolution PM 2.5 data showed particles are emitted during the ignition of lignite fires. Over 50% of all PM comes from the ignition phase of stoves lighted in the morning and in the late afternoon after people arrive home from work. A laboratory (modelled on the SeTAR Centre Laboratory, University of Johannesburg) was established to quantify domestic stove emissions. Measured particulate matter was as much as 12 g m-3 of flue gases. Data analysis uses the SeTAR Centre Heterogeneous Testing Protocols and analytical methods. A combustor testing programme led rapidly to the development of an extremely clean-burning cooking and space heating stove that has been developed and brought to market within a single year. An acceptable 9 kW low-emission (up to 99% reduction of PM 2.5) and high efficiency (50% fuel savings) crossdraft cooking and space heating stove was developed and is being piloted for large scale production in Ulaanbaatar at this time.
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The global alliance for clean cookstoves: implications for South Africa

  • Authors: Matinga, M. N. , Robinson, J. W. , Annegarn, H. J.
  • Date: 2011
  • Subjects: Global Alliance for Clean Cookstoves , Domestic stoves , Energy poverty , Clean energy
  • Type: Article
  • Identifier: uj:6242 , http://hdl.handle.net/10210/8186
  • Description: The purpose of this paper is to discuss the newly launched Global Alliance for Clean Cookstoves with the aim of highlighting the opportunities that it represents for South Africa. The paper argues that South Africa’s participation in the Alliance could support the developmental objectives of the country including: addressing equity issues related to energy poverty and health; supporting poverty alleviation efforts; supporting the Government’s constitutional commitments on clean air; and developing an innovative research, development and manufacturing sector. It further cites key lessons that South Africa can learn from Peru’s efforts to address indoor air pollution and concludes with a set of recommendations.
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Sizing of an anaerobic biodigester for the organic fraction of municipal solid waste

  • Authors: Kigozi, R. , Aboyade, A. O. , Muzenda, Edison
  • Date: 2014
  • Subjects: Anaerobic digestion , Biogas digesters , Clean energy , Municipal solid waste management
  • Type: Article
  • Identifier: uj:4982 , ISSN 2078-0966 , http://hdl.handle.net/10210/13114
  • Description: The anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) for biogas production is a potential solution to the growing challenges associated with municipal solid waste (MSW) management while simultaneously providing an alternative clean energy source. Biogas is produced by the anaerobic digestion (AD) of biomass using microorganisms in specifically designed plants called biogas digesters under controlled conditions or naturally in marshes and landfills. It is a rather clean and versatile fuel as opposed to fossil fuels. To design an efficient AD system, a proper understanding of the quality and quantity of available feedstock must be made as well as prevailing operating conditions. This paper represents steps that were taken to come up with an optimal size of biodigester to treat OFMSW produced at the University of Johannesburg’s Doornfontein Campus in downtown Johannesburg. The campus generates 232.2kg of OFMSW per day which required 30m3 of biodigester capacity.
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An evaluation of the effectiveness of interventions to transition low-income households towards the adoption of cleaner energy sources on the Mpumalanga Highveld

  • Authors: Phogole, Bopaki Testimonies
  • Date: 2021
  • Subjects: Energy policy - South Africa - Mpumalanga , Renewable energy sources - Government policy - South Africa - Mpumalanga , Clean energy
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/474329 , uj:42750
  • Description: Abstract: Globally, low-income households are faced with crippling effects of energy poverty which limit them to the use of polluting energy sources such as coal and wood. The high prevalence of the use of these ‘dirty’ fuels and the severity of their impacts on human health and the environment have necessitated widespread transition towards the adoption of cleaner energy sources. Against this backdrop, this study assesses the effectiveness of interventions that are designed to encourage and facilitate the long-term use of clean energy sources in low-income areas of South Africa. This study is based on the participants of the Eskom’s air quality offsets programme that was implemented in KwaZamokuhle in the Mpumalanga province, South Africa... , M.Sc. (Environmental Management)
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Drivers of renewable energy adoption in the built environment : a case of South Africa

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