Table 7.

Summary for the LPG replacement for cooking purposes based on the case study.

20	Amount of LPG in once cylinder (given)	44 kg/cylinder
21	Density of LPG	0.505 kg/L
22	Volume of LPG in one cylinder (L/cylinder). Calculation: [20]/[21]	87.13 L/cylinder
23	Volume of LPG in one cylinder (m3/cylinder). Calculation: [22]/1000	0.0871 m3/cylinder
24	LPG expansion rate (given)	270
25	Amount of gas after expansion. Calculation: [23] × [24]	23.52 m3/cylinder
26	Number of cylinders that can be replaced by biogas per month. Calculation [6]/[25]	17.18 cylinders/month
27	Fahud LPG consumption per month (given)	60 cylinders/month
28	Reduction of consumption. Calculation: ([26]/[27]) × 100	28.6%