Case Study
The company is now one of the major sand, gravity, and pressure casting foundries in the Midlands area.
Alucast, the sand, gravity and pressure casting manufacturer, was originally formed in 1967, as a sand- casting business making aluminium castings with 5 employees. Acquisition of another casting business in 1973, which was also operating in the sand-casting sector significantly grew the business.
The company is now one of the major sand, gravity, and pressure casting foundries in the Midlands area. A brief history of the operation is provided below:
Energy is a big cost for the company making up over 10% of total business costs. They have seen increases in energy cost of 100% in gas and of 200% in electricity. They wanted to understand their consumption better at machine level and help to minimise costs. As with all other sectors pressure is now starting to be applied to get the business to decarbonise and provide scope 1, 2 & 3 information. The company wanted to use this programme to learn more about this area and to better understand the task ahead.
Rising costs for the business and the sector in general has led to difficult trading conditions in the industry at the moment and meant that the business was limited in its available capital for upgrading equipment and improving energy efficiency.
During the review it was noted that the melting process is inefficient due to the lack of insulation on the lids. There were audible air leaks around the site causing a high utilization factor on the compressors. The sand extraction system had recently undergone repairs due to numerous holes in the pipework. Some of the lighting has yet to be changed to LED. The site would benefit from an aM&T system to facilitate closer management of the production processes and process optimization.
Recommendation | Estimated Annual energy saving (kWh/yr) |
Estimated Annual saving (£exc.VAT/ yr) |
Estimated cost to implement (£ excl.VAT) |
Payback period | Estimated Annual carbon saving (tCO2e/yr) |
Reduce Compressor Pressure in the Sand Plant |
49,621 | £11,184 | £0 | 0 | 11.16 |
System Switch Off | 89,376 | £20,378 | £0 | 0 | 20.11 |
Fix Compressed Air Leaks |
89,311 | £20,141 | £10,000 | 0.5 | 20.09 |
Lid Insulation for Furnaces |
44,034 | £1,101 | £2,500 | 2.3 | 8.04 |
Installation of an Automated Monitoring and Targeting System | 243,656 | £22,950 | £80,000 | 3.5 | 46.88 |
Installation of LED Lighting |
3,300 | £892 | £3,200 | 3.6 | 0.74 |
Replace Old Furnaces | 370,440 | £14,781 | £60,000 | 4.1 | 67.62 |
Replace Extraction System | 21,315 | £5,757 | £36,200 | 6.3 | 4.80 |
Install Solar Array | 172,152 | £50,925 | £338,000 | 6.7 | 38.73 |
Totals | 1,083,205 | £148,109 | £529,900 | 218.17 |
"Our company was helped by Pro-Enviro which offered comprehensive advice to the company. They took an analysis of unproductive energy
use and monitored half hourly data. This gave a clear indication of significant wasted energy. They also helped us in the grant application process which made the whole process of application for funding rather painless."
Tony Sartorius – Chairman
Contact Name: Tony Sartorius
Position: Chairman
Email: AES@alucast.co.uk
Telephone:
Address:
Contact Name: Matthew Rhodes
Position: Director
Email: matthew.rhodes@camirus.co.uk
Telephone: 07939 218245
Address:
Delivery Partner for BCINC
Contact Name: Nersi Salehi
Position: Managing Director
Email: nersi.salehi@proenviro.co.uk
Telephone: 01788 538 150
Address: 8 Davy Court, Central Park, Rugby, Warwickshire, CV23 0UZ