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Title: Design consideration and economic analysis of a community size biogas unit

Abstract

At present, various organizations in Pakistan are involved in RandD work in biogas technology. Most of them are government organizations. The units developed or advertised by these organizations are of small size, i.e., for a single family, to provide gas for cooking and lighting only. In this paper, the design of a community-size biogas unit for power generation has been discussed based on hydraulic flow characteristics. The type of digesters which have been discussed are plug flow, arbitrary flow and complete mix flow. As the biological activity of the organic material in the reactor depends on the residence time and also on the temperature of the digesting liquor, hence the flow characteristics play a major role in the sizing of the digestion reactor tank. A diesel engine coupled with the biogas unit has been discussed. This not only provides power for pumping water, power for cottage industries, etc., but also the waste heat from the internal combustion engine can be used to heat the digester or for other heating needs. The economic evaluation of such a plant has been completed and the payback period has been calculated.

Authors:
Publication Date:
Research Org.:
Department of Chemical Engineering, Federal ''B'' Area Karachi
OSTI Identifier:
6510307
Report Number(s):
CONF-831205-
Journal ID: CODEN: ALESD
Resource Type:
Conference
Journal Name:
Alternative Energy Sources; (United States)
Additional Journal Information:
Conference: 6. Miami international conference on alternative energy sources, Miami Beach, FL, USA, 12 Dec 1983
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 14 SOLAR ENERGY; BIOGAS PROCESS; COST BENEFIT ANALYSIS; BIOREACTORS; DESIGN; FLUID FLOW; WASTE HEAT UTILIZATION; PAKISTAN; WASTE PROCESSING PLANTS; DIESEL ENGINES; PAYBACK PERIOD; ANAEROBIC DIGESTION; ASIA; BIOCONVERSION; DEVELOPING COUNTRIES; DIGESTION; ENGINES; HEAT ENGINES; INDUSTRIAL PLANTS; INTERNAL COMBUSTION ENGINES; MANAGEMENT; PROCESSING; WASTE MANAGEMENT; WASTE PROCESSING; WASTE PRODUCT UTILIZATION; 090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989); 140500 - Solar Energy Conversion

Citation Formats

Abbus, S P. Design consideration and economic analysis of a community size biogas unit. United States: N. p., 1983. Web.
Abbus, S P. Design consideration and economic analysis of a community size biogas unit. United States.
Abbus, S P. 1983. "Design consideration and economic analysis of a community size biogas unit". United States.
@article{osti_6510307,
title = {Design consideration and economic analysis of a community size biogas unit},
author = {Abbus, S P},
abstractNote = {At present, various organizations in Pakistan are involved in RandD work in biogas technology. Most of them are government organizations. The units developed or advertised by these organizations are of small size, i.e., for a single family, to provide gas for cooking and lighting only. In this paper, the design of a community-size biogas unit for power generation has been discussed based on hydraulic flow characteristics. The type of digesters which have been discussed are plug flow, arbitrary flow and complete mix flow. As the biological activity of the organic material in the reactor depends on the residence time and also on the temperature of the digesting liquor, hence the flow characteristics play a major role in the sizing of the digestion reactor tank. A diesel engine coupled with the biogas unit has been discussed. This not only provides power for pumping water, power for cottage industries, etc., but also the waste heat from the internal combustion engine can be used to heat the digester or for other heating needs. The economic evaluation of such a plant has been completed and the payback period has been calculated.},
doi = {},
url = {https://www.osti.gov/biblio/6510307}, journal = {Alternative Energy Sources; (United States)},
number = ,
volume = ,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 1983},
month = {Thu Dec 01 00:00:00 EST 1983}
}

Conference:
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