Difference between revisions of "Sandbox"

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*[[#Wood|Wood]]
 
*[[#Charcoal|Charcoal]]
 
*[[#Pellets|Pellets/Briquettes]]
 
*[[#Ethanol|Ethanol]]
 
*[[#Biogas|Biogas]]
 
*[[#LPG|LPG]]
 
*[[#Electricity|Electricity]]
 
 
 
<div id="Wood">
 
{| class="wikitable sortable"
 
|-
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Summary'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Availability & Cost'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Stoves/Appliances'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Health, Safety and Environment'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Opportunities'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Limitations'''
 
|-
 
| colspan="6" style="background:#bc2a5d; color:#ffffff;" |'''Biomass and  Biomass-based Fuels'''
 
|-
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Wood'''
 
|-
 
|Firewood is a traditional cooking  fuel, culturally accepted in many contexts and the smoke produced from the  burning of wood can flavour foods
 
|<nowiki>- Firewood not always available to  displaced communities</nowiki>
 
 
 
- Where readily available, firewood  can be collected at high environmental cost and social cost (friction with  the community, gender-based violence while collecting etc.)
 
 
 
- Where demand for firewood is high  and there is limited availability, cost can be relatively high
 
 
 
- Firewood bans are becoming a  popular tool to reduce deforestation
 
 
 
- Where firewood bans are in place,  it may be unavailable or relatively expensive as sold through the black  market
 
|Stove Types:
 
 
 
- Three Stone Fire, Improved Mud  Stove, Improved Cookstoves
 
 
 
Availability and  Costs:
 
 
 
- Three stone fires are open fires  and although they have no financial cost.
 
 
 
- Improved mud stoves can be produced  relatively cheaply where appropriate clay soils are readily available and thus,  likely to achieve higher adoption. They provide Tier performance and have  room for further efficiency improvement to achieve quality standards for  clean cooking.
 
 
 
(see MTF framework below).
 
 
 
 
 
- Improved cookstoves can be produced  locally or are available from international suppliers relatively cheaply,  although generally costs increase as higher quality standards are achieved
 
|<nowiki>- Collection of firewood can put  women and children at risk of sexual gender-based violence </nowiki>
 
 
 
- Cookstoves with a low tier of  performance causes high levels of indoor air pollution and associated health  concerns (e.g. respiratory diseases, eye irritation, etc.)
 
 
 
-  Cooking on open fire poses risk of burns and fires
 
 
 
- Uncontrolled exploitation of firewood  can lead to deforestation and environmental degradation
 
 
 
- Competing demands for a limited  resource can lead to friction between the host and displaced communities
 
 
 
- In instances where biomass is non-renewably  collected, improved cookstoves can contribute positively to climate change by  reducing the emissions.
 
 
 
|<nowiki>-  Improved cookstoves are more available than alternative clean cook stoves in  most contexts </nowiki>
 
 
 
- Many  commercially made improved cookstoves are more efficient than three-stone  fires and some (Tier 4) also meet most of the international quality  standards  
 
 
 
- Improved cookstoves have relatively  lower price and higher uptake compared to alternative clean cookstoves
 
|<nowiki>- Most  improved cookstoves do not meet the quality standard for clean cooking,  particularly if used improperly </nowiki>
 
 
 
-  Improved cookstoves are dependent on biomass fuel sources, many of which are  unsustainably grown and collected
 
 
 
-  Handcrafted cookstoves cannot guarantee quality standards, and consequently  it is impossible to quantify their impact
 
 
 
- Although sustainably managed wood lots are  possible, the size of the land required is generally prohibitive with regards  to meeting the demands of a displaced community in its entirety (this  includes households, businesses and institutions)
 
 
 
|}
 
</div>
 
 
 
<div id="Charcoal">
 
{| class="wikitable sortable"
 
|-
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Summary'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Availability & Cost'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Stoves/Appliances'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Health, Safety and Environment'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Opportunities'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Limitations'''
 
|-
 
| colspan="6" style="background:#bc2a5d; color:#ffffff;" |'''Biomass and  Biomass-based Fuels'''
 
|-
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Charcoal'''
 
|-
 
| Charcoal is a traditional cooking  fuel, culturally accepted in many contexts and the smoke produced from the  burning of charcoal can flavour foods
 
 
 
Heat from the burning of charcoal is  transferred through radiation (not convection as with firewood) so requires a  different stove design from that associated to firewood stoves
 
|<nowiki>- Charcoal is not always available to  displaced communities</nowiki>
 
 
 
- Where readily available, charcoal  can be purchased relatively cheaply
 
 
 
- Where demand for charcoal is high  and there is limited availability, cost can be relatively high
 
 
 
- Charcoal bans are becoming an  increasingly popular tool to reduce deforestation (incl. In displacement  settings)
 
 
 
- Where charcoal bans are in place,  it may be unavailable or relatively expensive as sold through the black  market
 
| Stove Types:
 
 
 
- Traditional Charcoal Stove,  Improved Cookstoves
 
 
 
Availability and  Costs:
 
 
 
- Improved cookstoves can be produced  locally or are available from international suppliers relatively cheaply,  although generally costs increase as higher quality standards are achieved
 
|<nowiki>- Cookstoves with a low tier of  performance can lead to high levels of indoor pollution and associated health  concerns</nowiki>
 
 
 
- Use of charcoal stoves in poorly  ventilated shelters can lead to death though the build-up of carbon monoxide
 
 
 
- Uncontrolled production of charcoal  can lead to deforestation and environmental degradation
 
 
 
- In instances where charcoal is not produced in  a sustainable manner, improved cookstoves can contribute to climate change
 
|<nowiki>-  Improved cookstoves are widely available in most contexts </nowiki>
 
|<nowiki>- Most  improved cookstoves do not meet the quality standard for clean cooking,  particularly if used improperly </nowiki>
 
 
 
-  Improved cookstoves are dependent on biomass fuel sources, many of which are  unsustainably collected
 
 
 
-  Handcrafted cookstoves cannot guarantee quality standards, and consequently  it is impossible to quantify their impact
 
 
 
- Although sustainably produced charcoal is  possible, the size of the land required is generally prohibitive with regards  to meeting the demands of a displaced community in its entirety
 
|}
 
</div>
 
<div id="Pellets">
 
{| class="wikitable sortable"
 
|-
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Summary'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Availability & Cost'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Stoves/Appliances'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Health, Safety and Environment'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Opportunities'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Limitations'''
 
|-
 
| colspan="6" style="background:#bc2a5d; color:#ffffff;" |'''Biomass and  Biomass-based Fuels'''
 
|-
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Pellets/Briquettes'''
 
|-
 
| Pellets and briquettes are the result  of compacting loose biomass (including charred biomass) into a uniform  product, which may require the addition of a binder, to achieve energy  densification (less volume for the same amount of energy output)
 
|<nowiki>- Pellets and briquettes may not be  readily available in displacement contexts </nowiki>
 
 
 
- Pellets and briquettes may not be  the cheapest source of cooking energy and may require some form of subsidy to  make them an ‘affordable’ solution
 
|Stove Types:
 
 
 
Improved Cookstoves, Gasification  Stove
 
 
 
Availability and  Costs:
 
 
 
- Improved cookstoves can be produced  locally or are available from international suppliers relatively cheaply,  although generally costs increase as higher quality standards are achieved
 
|<nowiki>- Can produce less smoke than other  biomass fuels but this is dependent on the raw materials, quality of  production and the type of stove used  </nowiki>
 
|<nowiki>- There is an opportunity to use  waste biomass or sustainable wood supplies to manufacture pellets and  briquettes</nowiki>
 
|<nowiki>- Pellets and briquettes can be  difficult to light and be reused once extinguished </nowiki>
 
 
 
- Grant based small scale briquetting  activities in displacement settings rarely result in meaningful impact and  are only sustainable with ongoing grant commitments
 
 
 
- May require the development of a  supply chain to the displacement setting
 
|}
 
</div>
 
<div id="Ethanol">
 
{| class="wikitable sortable"
 
|-
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Summary'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Availability & Cost'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Stoves/Appliances'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Health, Safety and Environment'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Opportunities'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Limitations'''
 
|-
 
| colspan="6" style="background:#bc2a5d; color:#ffffff;" |'''Biomass and  Biomass-based Fuels'''
 
|-
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Ethanol'''
 
|-
 
|Ethanol  is an alcohol fuel distilled from a variety of biomass feedstock, usually  produced in liquid or gel form
 
|<nowiki>- Ethanol may not be readily  available in displacement contexts </nowiki>
 
 
 
- The cost of ethanol is influenced  by production and supply chain costs and economies of scale
 
 
 
- Sugar cane and molasses are the  most common and economical sources of ethanol
 
|Stove Types:
 
 
 
- Ethanol Burner
 
 
 
Availability and  Costs:
 
 
 
-Availability limited to contexts  where ethanol for cooking is already established
 
 
 
- Simple design and can be made  relatively cheaply
 
|<nowiki>- Can be  manufactured from renewable primary products, however, poor land management  associated to fuel crops can lead to environmental degradation </nowiki>
 
 
 
- Fuel  crops can occupy land previously associated to food production or  biodiversity  
 
 
 
- Clean combustion with negligible  emissions and no soot
 
|<nowiki>-  Ethanol can be affordable in contexts with appropriate supply ecosystems </nowiki>
 
|<nowiki>- May require the development of a  supply chain to the displacement setting</nowiki>
 
 
 
- May  require behavioural change if users unfamiliar with or hesitant towards gas  stoves
 
|}
 
</div>
 
<div id="Ethanol">
 
{| class="wikitable sortable"
 
|-
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Summary'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Availability & Cost'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Stoves/Appliances'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Health, Safety and Environment'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Opportunities'''
 
| style="background:#27811d; color:#ffffff; text-align:center;" |'''Limitations'''
 
|-
 
| colspan="6" style="background:#bc2a5d; color:#ffffff;" |'''Biomass and  Biomass-based Fuels'''
 
|-
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Biogas'''
 
| colspan="6" style="background:#2596be; color:#ffffff;" |'''Biogas'''
 
|-
 
|Biogas is produced from agricultural, food and/or  human waste through processes of anaerobic digestion
 
|<nowiki>- it is particularly viable in rural areas where sufficient  feedstock is available</nowiki>
 
 
 
- Biogas systems require intensive  upkeep and maintenance, which is labour intensive and requires skilled local knowhow  for its maintenance.
 
 
 
- Such systems have high investment  costs though more affordable DIY or ready-made solutions also exist
 
|Stove Types:
 
 
 
- Biogas Burner
 
 
 
Availability and  Costs:
 
 
 
- Simple design and can be made  relatively cheaply
 
|<nowiki>-  Biogas is clean and, if feedstock processes are managed correctly, safe for  users </nowiki>
 
 
 
-  Reduces reliance on firewood and charcoal, which can reduce the impacts of  deforestation
 
|<nowiki>-  Biogas systems can contribute to circular economies and can incorporate  sanitation management strategies </nowiki>
 
 
 
-  Biogas produces fertiliser as a by-product which is a sought-after  co-benefit
 
|<nowiki>- Ideally for households with agricultural  and livestock. Could also support community cooking activities </nowiki>
 
 
 
- Cultural norms might limit the  acceptance of handling raw materials and cooking from the generated gas
 
 
 
- Biogas systems need a significant  initial water input to produce gas
 
 
 
- Biogas systems require a continuous  supply of suitable feedstock, which is a challenge to procure or produce
 
 
 
-  The biodigester needs a  certain temperature and contamination needs to be avoided for continuous  biogas generation
 
 
 
- May  require behavioural change if users unfamiliar with or hesitant towards gas  stoves
 
|}
 
</div>
 
 
 
</div>
 

Latest revision as of 12:20, 11 July 2024

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