How can I improve the effectiveness of the ADF? It seems Nissan knows the answer

How can I improve the effectiveness of the ADF? It seems Nissan knows the answer


Nissan announced that it was able to achieve a thermal efficiency of 50 percent for its internal combustion engine. True, so far we are talking only about an experimental unit, which will be used in the e-Power hybrid power plant exclusively for recharging the battery.

Nissan’s STARC concept (from Strong, Tumble & Appropriately Stretched Robust Ignition Channel; strong, vortex, reliable ignition channel with appropriate elongation), developed by Nissan, improves the flow and combustion of the air / fuel mixture at high compression ratios. For this, a vertical vortex flow is maintained in the cylinder, the speed of which is almost constant near the spark plug. This lengthens the spark discharge channel, burns the fuel mixture more efficiently and reduces carbon dioxide emissions.

Experiments have shown that using this approach in conjunction with an exhaust gas recirculation (EGR) system can achieve a thermal efficiency of 43 percent – an industry average of 40 percent. If the cylinders are filled with a lean mixture, the efficiency will increase to 46 percent. The maximum 50 percent is only achieved when three conditions are met: constant speed and constant load coupled with the introduction of heat recovery technology.

The same efficiency is still available only for the turbocharged V6 1.6 from Mercedes-AMG cars, although the indicator for the engine of the Mercedes-AMG One hypercar is only 43 percent. And two years ago, it became known that Mazda is working on a new generation of high-compression engines that can compete with electric power plants in terms of harmful emissions. Their thermal efficiency was supposed to be 56 percent.

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