RENEWCONNECT - All about renewables & power sector

The most aerodynamically efficient shape for an electric car is the teardrop (or streamlined) shape, often referred to in engineering as a “modified aerofoil” or “low-drag bullet”. Aerodynamics of a car under simulation Here’s what that means in practical design terms: 🔑 Key Features of a Highly Aerodynamic EV Shape: 1.  Smooth, Tapered Rear (Teardrop Tail) Airflow should taper off gradually at the back to reduce wake turbulence (drag caused by air swirling behind the car). This shape is seen in vehicles like the Volkswagen XL1 or Aptera. 2.  Low and Sloped Nose A rounded, downward-sloping front minimizes air resistance by allowing air to smoothly flow over and around the vehicle. Flat or blunt noses increase pressure drag. 3.  Flush Surfaces and Minimal Protrusions No exposed door handles, mirrors, or unnecessary edges. Cameras can replace side mirrors to reduce drag. Wheels may be covered or enclosed to reduce turbulence. 4.  Tight Ground Clearance and Fla...

  The development of the modern car has been a fascinating journey, evolving over more than two centuries. What started with steam-powered contraptions in the 1800s has transformed into sleek, high-tech vehicles packed with advanced features like electric propulsion, autonomous driving, and smart connectivity. Here is a detailed look at key milestones in the evolution of the car from the early 1800s to the present. 1800s: The Era of Steam-Powered Vehicles The early days of automotive innovation were dominated by steam power. This was an era of experimentation, where the idea of a self-propelled vehicle was just beginning to take shape. Richard Trevithick's Steam Carriage (1801): British engineer Richard Trevithick designed one of the earliest steam-powered carriages, which could reach a top speed of 5 mph (8 km/h). Though slow and impractical for widespread use, this invention laid the groundwork for future advancements. Amédée Bollée's Steam-Powered Vehicle (1873): French in...

Some of key concerns about the transition from fossil fuel vehicles to electric and hydrogen vehicles are very relevant. The shift towards cleaner transportation is essential for addressing climate change, reducing pollution, and curbing carbon emissions. However, the question of what happens to existing petrol and diesel vehicles is significant. Let's explore your queries in detail: 1. Condition of Old Petrol and Diesel Vehicles on Roads Continued Usage: Old petrol and diesel vehicles will likely continue to be used until they reach the end of their life cycle. However, governments may introduce stricter emission norms and encourage phasing out older, more polluting vehicles. Resale and Export: These vehicles might find a second life in countries with less stringent environmental regulations, although this would only shift the pollution problem rather than solving it. 2. Best Possibilities for Using Fossil Fuel Vehicles in a Sustainable Manner Retrofitting: Converting existing ...