08 . SUSTAINABILITY DEVELOPMENT AND MANAGEMENT

8.1 Embodied energy

Embodied energy: Sum of all energies required to produce goods or services. The concept is usually helpful in determining the efficiency of energy producing or energy saving devices. It also helps us to map the greenhouse emissions and check whether a product is contributing to global warming or not.

FORMULAE USED

• Volume of cylinder = pi x r^2 x h
• Total volume = Volume of individual x Quantity
• Density = mass/volume
• mass = density x volume
• Total mass = mass of individual item x quantity
• Net embodied energy = unit embodied energy x total mass

NOTE

• Height , depth and thickness are used synonymously
• Width and breadth are the same terms
• Calculations are done in SI units only
• SI unit for length, width, thickness and radius is meters.
• SI unit for density is kg/m^3
• SI unit for mass is kg
• SI unit for unit embodied and total embodied energy is MJ/kg usually

Densities in kg/m^3

• Foam board = 62
• Acrylic sheet =1200
• Steel = 7750(for nuts and bolts)

8.2 Embodied energy calculation

SL.NO	Constituents	Length (in m)	Width (in m)	Thickness (in m)	Radius (in m)	Volume (cubic meters)	Weight (in kg)	Quantity	Total volume (cubic metres)	Total Weight (in Kg)	Unit of Embodied energy	Total Embodied Energy (MJ/Kg)
01	FOAM SHEET
1	Dispenser	0.2	0.2	0.01	-	0.0004	0.0248	5	0.002	0.124	85	10.54
2	base	0.36	0.255	0.01	-	0.000918	0.056916	1	0.000918	0.056916	85	4.83786
3	U Block	0.21	0.105	0.01	-	0.0002205	0.013671	2	0.000441	0.027342	85	2.32407
4	support for crushing block	0.17	0.085	0.01		0.0001445	0.008959	5	0.0007225	0.044795	85	1.119875
5	Dc motor holder	0.085	0.05	0.01	-	0.0000425	0.002635	5	0.0002125	0.013175	85	1.119875
6	Stand	0.125	0.05	0.01	-	0.0000625	0.003875	4	0.0003125	0.019375	85	1.646875
7	Arduino	0.255	0.105	0.01	-	0.00026775	0.0166005	1	0.00026775	0.0166005	85	1.4110425
											Total	22.9995975
02	Arcylic Sheet
1	Circular Plate	-	-	0.006	0.075	0.0001060	0.12723	2	0.000212	0.25446	177	29.77182
2	Rod	0.2	0.03	0.006	-	0.000036	0.0432	2	0.000072	0.0864	117	10.1088
3	Crushing Block	0.06	0.035	0.006	-	0.0000735	0.0882	6	0.000441	0.5292	117	61.9164
4	Block upper part	0.11	0.1	0.002	-	0.000022	0.0264	1	0.000022	0.0264	117	3.0888
											Total	104.88582
03	L - Clamp
1	1-inch L-Clamp	0.025	0.025	0.002	-	0.0000025	0.0193	4	0.00001	0.0772	38.8	2.99536
2	1/2 inch L-Clamp	0.02	0.015	0.002	-	0.0000006	0.004665	4	0.0000024	0.01866	38.8	0.72168
											Total	3.71704
04	Nuts and bolts
1	30mm	0.03	-	-	0.002	3.76*10^-7	0.002921	14	0.000005264	0.040894	38.8	1.5866872
2	15mm	0.015	-	-	0.002	1.88*10^-7	0.0014608	16	0.000003008	0.02337	38.8	0.906756
3	20mm	0.02	-	-	0.002	2.51*10^-7	0.0019477	4	1.0053*10^-6	0.0077908	38.8	0.302283
4	75mm	0.075	-	-	0.06	0.000848	6.572	4	0.003392	26.288	38.8	1019.9744
5	40mm	0.04	-	-	0.0025	7.853*10^-7	0.00608	6	4.712*10^-6	0.03648	38.8	1.415424
6	5mm-d	0.025	-	-	0.05	0.0001963	1.521709	2	0.0003926	3.04341	38.8	118.084308
7	3mm-d	0.02	-	-	0.0015	1.437*10^-7	0.00109563	10	1.437*10^-6	0.0109563	38.8	0.04251
8	25mm	0.025	-	-	0.002	3.14159*10^-7	0.0024347	12	0.0000037699	0.02921	38.8	1.133348
											Total	1143.4457162
05	U Clamp
1	2 inch	0.08	0.01	0.02	-	0.000016	0.124	1	0.000016	0.124	38.8	4.8112

Total embodied energy is = 1279.86 KJ/Kg