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The technical Q&A forum
for humanitarian &
development workers
 
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Ahana Shrestha | 27.11.2017
Small scale off-grid power supplies
1 answer
136 views
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Richard Blanchard | 20.11.2017
What alternatives are there to cooking with firewood on a 3-stone stove?
1 answer
1k views
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RedR TSS | 15.11.2017
H2S bacterial water testing kits
5 answers
1k views
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Ahana Shrestha | 23.10.2017
Can anyone provide some information on wind turbine?
4 answers
287 views
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Onojighofia Godwin | 09.09.2017
I want to produce Stove Wick, how do i get the Equipment for it's production?
1 answer
102 views
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Anton Zhyzhyn | 25.07.2017
Large single-phase loads on a three-phase generator
1 answer
12k views
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Ahana Shrestha | 28.06.2017
How we can store water to a height of 12m and water volume of about 3ooo liters
3 answers
601 views
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Ahana Shrestha | 30.05.2017
Fin wants to know the potential of bicycle to generate electricity and pumping water?
3 answers
511 views
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Ahana Shrestha | 03.05.2017
Mersha wants to know about the diesel engine that is used in off-grid areas?
2 answers
1k views
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Ahana Shrestha | 27.04.2017
Want to know about the turbine, generator and pump to bring water to the town?
2 answers
871 views
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Ahana Shrestha | 15.01.2017
What kind of DC pump will I require to discharge the water at sufficient pressure and high volume?
2 answers
1k views
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Ahana Shrestha | 05.01.2017
Can anyone suggest a best size of variable speed drive for a pump?
2 answers
2k views
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Anton Zhyzhyn | 30.11.2016
Gas cooking fuel consumption per day
2 answers
509 views
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Ahana Shrestha | 31.10.2016
What are benefits and limitations of solar cooking in developing country?
4 answers
548 views
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Ahana Shrestha | 29.09.2016
How much electricity can be generated from 1 cubic metre of water assuming a vertical delivery pipe and a fall of at least ten metres.
1 answer
889 views
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Ahana Shrestha | 07.09.2016
Does anyone have any information on Waste Cooking Oil?
3 answers
998 views
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J Hawkin | 30.08.2016
Energy metering and usage monitoring (pre-payment systems)
no answers
505 views
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Neil Noble | 17.08.2016
Treadle pumps in Malawi?
4 answers
1k views
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jamesoriga | 16.08.2016
Interpreting Hydro-geological survey reports for drilling
2 answers
411 views
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Neil Noble | 11.08.2016
Biogas in Nigeria?
1 answer
1k views
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