Exploring the potential role of decentralised biogas plants in meeting energy needs in sub-Saharan African countries: a techno-economic systems analysis

Sustainable Energy Research

Table 12 Different carbon emissions produced and saved compared to fossil fuel by cow dung and biogas production during the storage and the entire process

		Reactor 1	Reactor 2	Reactor 3
Real volume of reactor	m³	3.28	7.05	15.09
Save emission carbon dioxide
Cow dung	kg CO₂/year	142.72	882.32	1621.92
Co-digestion cow dung HF	kgCO₂/year	216.16	955.76	1695.35
Co digestion cow dung grass	kg CO₂/year	4957.62	6356.99	9343.98
Co-digestion of cow dung maize	kg CO₂/year	1721.09	3164.12	6244.31
Emission from storage
Cow dung storage weight	kg	730.43	1460.86	2191.29
Emission storage	kg CO₂	8694.93	17,389.85	26,084.78
Emission produced
CO₂ emission from biogas from CD	kg CO₂	4397.84	8795.67	13,193.51
CO₂ emission from biogas from co-digestion CD/HF	kg CO₂	4797.22	9195.05	13,592.89
CO₂ emission from biogas from co-digestion CD/grass	kg CO₂	8875.65	13,273.48	17,671.32
CO₂ emission from biogas from co-digestion CD/maize	kg CO₂	5004.59	9402.43	13,800.26