Plastics

Talbot Plastics has installed an electric moulding machine which only uses 35% of the energy used by the old hydraulic machine. The new machine's average load for 120 plastic injection ‘shots' per hour is 2.5kW, compared with 8kW for the old one.

The company now saves $4,500 in total costs and delivers CO2 savings of nearly 11.8 tonnes a year. The new unit uses only 35% of the energy used by the old hydraulic machine.

Rohm and Haas manufacture a range of products, mainly for use in the manufacture of paints.

They reduced the costs of their cooling water circulation system by fitting a variable speed drive. This resulted in electricty savings of 49,680kWh, producing a cost saving of $5,460 per year.

Circulating chilled water or glycol systems are very common in many industries. The chillers often have internal temperature probes that result in unnecessary circulating pump running costs. Moving the temperature probe to another part of the system can be a cost-effective energy saving opportunity.

Read the case study below to find out how Millennium Plastics Ltd changed their chiller control system and reduced annual electricity use by 7,100kWh.