Page 65 - Shaping A Sustainable Future

How to use Figure 18 illustrates the layout of Design 3.

From Figure 17

Step 1:
Use the hose/pipe to absorb all the coolant at the back
of the machine, where the device disposes of the cool-
ant by using a suction technique. Two types of attach-
ments are used to separate oil and coolant.

Step 2:
The coolant will pass through the wire mesh that will
filter the remaining debris.

Step 3: Figure 18: CAD model of design 3.
Clean coolant is collected.

We have discussed our designs with the Company
Director and our Project Supervisor. With the filtration Presentation of Data
system, we estimate a 25% saving in the coolant. Instead
of using four drums per year, the company will target to With our proposal, we have projected that annual CO
cut it to 3 drums of coolant per year per CNC machine. emissions will be reduced to 4,205kg from reducing 2
This will bring cost savings for the company and cut water and coolant usages and reducing electricity
water usage per machine from 4 drums to 3 drums. usage from the compressor. This is a 65% decrease in
Refer to Table 5 on the projected savings after project CO Emissions. Table 6 shows the reduction in carbon
2
implementation. emission.
Daily Usage Annual Usage
Coolant Usage Coolant Usage
Resource Daily Usage Annual Usage
Drums of coolant 4 3
Water 525 m 163 kg 0.3 kg CO / m 3
3
Number of flushes 1 0.5 2
Coolant 21 m 3 6.3 kg 0.3 kg CO / m 3
Cost of coolant $6,600 $5,950 2
annually Electrical 9,636 kWh 4,036 kg 0.4188 kg CO /kWh
2
Table 5: Projected Savings of company after project TOTAL 4,205 kg
implementation
Table 6: Project carbon footprint after solution
Volume per drum = 200 litres. implementation.
Cost of coolant/drum = $1,650.
The projected saving on cost is 25 %.
63