Why Don’t We Use the External Combustion Engine in Cars?

Why Don’t We Use the External Combustion Engine in Cars? image 0 Engine volume

Most cars today run on internal combustion engines, which heat and cool the engine from the inside. On the other hand, the external combustion engine heats and cools externally, resulting in a much more efficient machine. Examples of external combustion engines include the Stirling engine and steam engine.

Internal combustion engines

Internal combustion engines in cars generate energy from fuel by burning it. This process is a widespread energy source in automobiles. Internal combustion engines come in two basic types, gas and diesel. Both engines use fuel and air to ignite the power, and the resulting movement moves the car forward.

Internal combustion engines are still standard in cars and are more convenient and portable than electric motors. However, they have several drawbacks. They are noisy and can release pollutants into the atmosphere. Some are even so loud that drivers must wear hearing protection. As for small cars, it is more practical to use electric motors.

In Europe, many manufacturers have announced plans to phase out internal combustion engines by 2035. However, this plan is opposed by some politicians. Currently, the European Commission is considering the possibility of phasing out ICEs in cars in the next 15 years. This could put the lives of European citizens at risk.

In the early 1800s, Etienne Lenoir, a French engineer, was one of the first people to create an internal combustion engine. He made a device that used a gas mixture and a mixture of hydrogen and oxygen. He later patented it for industrial use. His invention was based on a concept known as the Leonardo cycle, which was outdated by its invention in 1806.

The internal combustion engines in cars are often throttled when moving. This restricts the air the engine can consume, reducing power and efficiency. Similarly, a throttle is typically pushed back when a car slows down. As a result, fuel is wasted, and the car uses more energy to slow down.

The combustion process in an internal combustion engine is similar to that of a steam engine. The combustion method uses recurrent ignition to produce gas, propelling pistons. On the other hand, an external combustion engine uses heat to vaporize a working fluid and produce usable work. Both machines have a long development history, and many great minds contributed to their development.


An electric vehicle (EV) can be significantly cheaper than an internal combustion engine (ICE). While both use gasoline to power the car, EVs use electricity, which can come from many sources, including renewable energy. A study by the University of Michigan Transportation Research Institute found that EVs cost less than half as much to operate as gas-powered vehicles. According to the research, the average annual cost of running an EV in the United States is $485, compared to $1,117 for a gas-powered car.

But the benefits of using an EV over a gasoline-powered car are not equal. The internal combustion engine is becoming increasingly outdated, and some experts believe new technology, such as an electric vehicle, is the only viable option. In addition, the technology used in an EV is more efficient than an internal combustion engine.

In addition to the fuel cost, the environment is a significant concern. If a vehicle uses an internal combustion engine as its primary power source, it will require more weight and space, reducing fuel efficiency. Moreover, the National Academy of Sciences says that the internal combustion engine is not environmentally friendly. In addition, gasoline is harmful to the environment, which makes a hydrogen fuel cell an even better option.

Another essential feature of an external combustion engine is its efficiency. The internal combustion engine heats and cools the motor inside the vehicle, whereas an external combustion engine heats and cools the air outside the car. An external combustion engine can produce 15% more energy than an internal combustion engine. It is also more efficient than a hybrid.

The EV cost is higher than that of an ICE in almost every geographic area. Although subsidies and high residual values can offset the difference, the overall cost of an electric car is typically much higher. Further, the cost of electricity in some regions is approximately three times higher than that of an ICE.

In addition to being environmentally friendly, EVs will also benefit from a higher driving range and lower fuel costs. While their initial costs may be higher than the cost of an internal combustion engine, the technology will eventually make them more affordable. It may be years before EVs compete with the internal combustion engine in cars.

Environmental impact

The external combustion engine in cars produces harmful emissions that can affect our health and environment. Diesel fuel, for example, contains carbon monoxide, which can be dangerous to the human body because it can reduce our ability to absorb oxygen. It also increases our risk of headaches, dizziness, and fatigue. It can even lead to learning disabilities and reduced work capacity.

In addition to exhaust particle emissions, a car’s tires, brakes, and other components contribute to air pollution. While many comparisons of particle emissions focus on primary PM emissions emitted directly from the vehicle’s features, other emissions from a vehicle’s tailpipe, such as oil and gas, can also lead to significant PM pollution. This can be harmful to the environment if not addressed correctly.

Despite the adverse effects, internal combustion engines have also provided some benefits. For example, they reduced the need for farm animals. In the 1910s, 25% of cropland in the U.S. was used to raise meat. As motorized farm equipment replaced animals, much of that land was converted into forestland, which helps absorb greenhouse gas carbon dioxide.

Additionally, ICE car engines emit other types of pollutants that negatively impact our environment. These include carbon monoxide, hydrocarbons, ammonia, and other chemicals. Even more worryingly, these emissions are linked to climate change. However, transitioning from ICE to BEVs is a massive step in improving air quality. By eliminating the use of fossil fuels in cars, we can make a real difference in our world.

A life cycle analysis is another way to evaluate the environmental impact of electric vehicles. This method looks at the entire lifecycle of a car, from manufacturing to operation and disposal. It also assesses the total cost of ownership for the consumer. In particular, the study found that the environmental impact of electric cars is strongly related to the type of electricity used to generate them. The most common form of electricity in Poland is caused by the combustion of hard coal and lignite.

The harmful emissions produced by cars are a threat to human health. In urban areas, where leaf cover is minimal, air pollution can contribute to several health problems.

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