A techno-economic assessment of bio-digester technology for the rural development of Pakistan | |
| Author | Hafeez, Muhammad |
| Call Number | AIT RSPR no.ET-85-3 |
| Subject(s) | Biogas Rural development--Pakistan |
| Note | A research study (12 Credits) summitted in partial fulfilment of the requirements for the Degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | This study is meant to identify the village energy needs that can be met by indigenous resources economically. The study focuses on locally available biomass potentials and assesses the best suited technological alternative to supplement the energy supplies from central supply system. It is found that 91% of village energy goes to food cooking, 55% of the total requirements is met by dung cakes, 22.5% from crop residues and 13.4% by the fire wood, indicating lack of fire wood in the village and abundance of dung. The same dung cad be fermented in a digester along with agricultural waster, giving a clean fuel for kitchen and retaining most of the nitrogen present in the feed stock and returning it back to the plants, which is wasted otherwise. The economic viability of the biodigester has been assessed on the basis of Present Worth. Big plants generating 1533 M3 gas for electricity and cooking need 100% subsidy to supply energy at the prevailing energy prices; where as by spending 3.87 Lakh Eu pees as 50% subsidy on a 900 M3 community plant generating biogas for 4500 people to meet cooking fuel, Govt. can improve the living conditions of poor and rich villagers of Pakistan equitably. The Energy Cost per MJ in case of option A at plant site is 0.69 c US and with distribution system it is 0.70 c Us/MJ. The Energy Cost per MJ in case of option B at plant site is 0.77c US and With distribution system it is 0.78 c US/MJ. CDDS can lessen the peak hour lighting load from the over burdened central electricity supply system just by introducing cheaper and durable biogas lamps. This can save CESSs' costly generation of Gas Turbines which have a generation cost more than Rs.2.10/Kwh and burn imported fuels. Although the CBD are less attractive at prevailing energy prices with out subsidy. |
| Year | 1985 |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Giap Van Dang |
| Examination Committee(s) | Prida Wibulswas ;Samorn Muttamara |
| Scholarship Donor(s) | European Economic Community (EEC) |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1986 |