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DEMERS’ SUSTAINABLE APPROACH is made up of objectives for the sustainable development of the product we manufacture and our activities’ footprint. These objectives are based on performance indicators that enable us to more than just describe our achievements.
By developing more sustainable products, we also help our customers meet their own sustainable economic, environmental and social objectives.
Our management philosophy, our over 50 years of experience in vehicle modification and manufacturing and our ongoing research and development efforts are some of the strengths that enable us to manufacture ambulances that are increasingly respectful of the environment. We contribute tirelessly to building a better future on the environmental, social and economic fronts.
Demers Ambulances works toward sustainability through:
Objective: Continuously improve the design of our products and reduce wind resistance.
In 1992, Demers introduced its first aerodynamic roof on the CX model and, since then, we have continued to improve our ambulance design to reduce wind resistance and fuel consumption.
The aerodynamic design is available on all demers ambulances. The head-turning aerodynamic roofline of a Demers ambulance provides many advantages: up to 14% fuel economy, low wind resistance, less wind noise and better handling.
To scientifically confirm the fuel savings, the Demers engineering team worked with a highly specialized external engineering firm to perform Computational Fluid Dynamic (CFD) testing on our ambulances.
CFD testing is a virtual wind-tunnel simulation that determines the drag coefficient, which is used to compare and improve our designs. We are then able to correlate the reduction in aerodynamic drag with a reduction in fuel consumption. The fuel savings calculated from the CFD testing are an astonishing 14.5%.
These results were then compared with actual EMS fleet-management data and we found that the actual savings on fuel costs are over 18%. The factors explaining these additional savings include the fact that under actual conditions, vehicles stop and go; the lighter weight of our vehicles; and, their ability to consume less fuel in acceleration. This translates into additional fuel savings .
Impact of the Demers aerodynamic design on a Demers Type II ambulances with real consumption numbers from an Emergency Medical Service (compared with a Type II ambulance from the same OEM converted by the competition):