Presentation on theme: "Ershad Ullah Khan, MSc Process Engineer TPS Termiska Processer AB"— Presentation transcript:
1Ershad Ullah Khan, MSc Process Engineer TPS Termiska Processer AB
2Arsenic poisoningBangladesh is experiencing the largest mass poisoning in human history, because of arsenic in the ground water. Around 80 million Bangladeshis may be affected (WHO)
3Lack of electricity and safe water 80% of the population live in rural areas.Around 70% of them are not connected to the national grid electricity.
4Decentralised energyDecentralised systems for the supply of electricity are the most appropriate solutions for rural dwellers.
5The project This project is a pilot investment in Bangladesh Livestock and vegetable waste biogas CHP plant integrated with membrane distillation.The purpose is to make both electricity and clean water from the same bio energy.
6Biogas driven engine and membrane distillation process Distributed powerSafe drinking water andFertilizerall from one input which is manure or vegetable waste.
8Biogas engine from JDEC Small scale electricity productionWell proven technology for small scale CHPBiogas can be used directly in the gas engineHeat of exhaust gas is used for ground water heatingCommercially availableTechnically and economically feasible
9Membrane distillation technology (MD) ConventionalMembrane distillationConventional small-scale technologies could not remove the arsenic sufficientlyConventional large plants are not feasible for small and rural areas
10Absolutely pure water Bacteria and virus Fertilizers and pesticides Industrial chemicalsArsenic
13Proposed pilot project 26 kWe biogas engine3 membrane distillation modulesElectric efficiency 31%Thermal efficiency 40%Annual electricity generation 197 MWh (540 kWh/d)Annual water production 456,000 litres (1250 l/d)Equipment life yrs
14Costs per capita electricity and water Specific cost for kWh electricity $ (28 öre)Specific cost for per liter water $ (11 öre)Total investment cost for digester6, (USD)Operating and maintenance costs for 10 years6,700.00Total investment cost for gas engine32,500.00Operating and maintenance for 10 yearsTotal cost for electricity production78,400.00Specific cost for per kWh electricity0.04 $/kWhTotal investment cost for MD facilities41,500.00Operating and maintenance for 20 years93,000.00Total cost for water production1,34,500.00Specific cost for water production0.015 $/lit
15Organizational chart Scarab Development AB, Grameen Shakti Client: Dr. Andrew MartinKTH Advisor:Ershad Ullah KhanProject leader:BiogasSubtask 1:Biogas engineSubtask 2:Heat ExchangersSubtask 3:MD modulesSubtask 4:Integrated systemSubtask 5:
16Costs of proposed pilot project Installation costs $ 80700Operation and maintenance 04 years project $ 8070