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Auto enterprise steers towards green


by Desi Tzoneva on 19 February 2010

The drive towards sustainability and environmental preservation has meant that companies are re-thinking the way they go about business. Many of the manufacturers responsible for the major emissions of greenhouse gasses – such as truck bus manufacturers - are themselves now looking to provide solutions to these problems by introducing hybrid technology. However, very little attention is paid to options available to operations from a truck body and trailer perspective. Serco, however, is one example of these and is making a shift in a green direction.
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Some of the main issues which impact on carbon dioxide (CO2) emissions include:

Tare weight:
Reducing vehicle tare weight reduces rolling resistance and CO2 emissions. Serco’s Super Reefer Lite, achieves a weight saving against the standard trailer of up to 1 000kgs. The lightweight 30 pallet show trailer, which weighed in at 8 380kg’s including the cooler unit will deliver a reduction over a seven-year period of 37 tons in CO2 emissions and a reduction of 0.81 litres of fuel per 100km in comparison to a standard trailer with single tyres. This amount increases to a 58.9-ton saving in CO2 emissions and a 1.27 litre saving in fuel per 100km when compared to a trailer with dual tyres.

Tyre pressure:
A recent survey found that almost a quarter of vehicles had under-inflated tyres, which increase fuel consumption and emissions. Serco has introduced the ‘P-eye’ tyre pressure sensors as a simple but effective way to remedy this problem while saving on tyre wear and fuel at the same time.

Thermal efficiency:
Maintaining the thermal efficiency of the body is paramount to reduce fuel consumption of the fridge motor. Prompt attention to attend to damage to the body will help reduce water ingress. Door seals and heat bridges will also impact on the thermal efficiency of the body. The type of refrigerant used is also a major factor. Certain CFC refrigerants have now been banned and more efficient motors which use less fuel are being introduced.




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