The role of specific energy consumption in a heat recovery system for cassava starch production using an integrated agro-industrial system

Table 4 Total energy consumption and SEC values of cassava starch production

Month	Cassava starch^(e)	Electric consumption^(a)	Biogas consumption^(b)	Total energy consumption⁽ⁿ⁾	SEC
Month	(Tone)	(kWh)	(m³)	(GJ)	(GJ/tone)
Jan	770	196,778	265	714.60	0.928
Feb	245	62,611	408	234.95	0.959
Mar	240	61,333	366	229.36	0.956
Apr	761	194,478	597	714.09	0.938
May	1110	283,667	522	1033.41	0.931
Jun	269	68,744	550	260.35	0.968
Jul	1050	268,333	430	976.06	0.930
Aug	1316	336,311	399	1220.06	0.927
Sep	1343	343,211	308	1242.77	0.925
Oct	765	195,500	495	715.38	0.935
Nov	911	232,811	566	851.36	0.935
Dec	997	254,789	593	931.12	0.934
Total	9777	2,498,567	5499	9124	–

(GJ) = [a(kWh) × 3.6 × 10^–3] + [b(m³) × 23.4 MJ/m³ × 0.001]
(e): Emissions of electric network in Vietnam is 0.9130 (tCO₂/MWh) = 253,611.11(kgCO₂/TJ) [71]
(n): Emission of fuel follow IPCC [70]
With heat value of biogas of 23.4 MJ/m³

ISSN: 2192-0567