No, it is not possible to construct a heat engine that will not expel heat in to atmosphere. according to second law of thermodynamics, all the practical heat engines absorb heat from the source, convert a part of it in to mechanical work and reject the remainder to the cold body or atmosphere. hence, no heat engine can operate with single source for conversion in to mechanical work without expelling heat to the atmosphere. in other words, their must be a temperature difference between the hot and cold bodies (source and sink) for the conversion of heat in to mechanical work.
Answer:
Hot air is generally not considered a pollutant. Any system that creates mechanical or electrical energy without using fuel would be considered pollution free.
A Sterling Cycle engine can use waste (recovered) heat to create mechanical energy. This creates no additional pollution and in fact, as it achieves higher efficiency in the original system, reduces additional fuel use and its associated pollution.
Electricity can be generated directly from waste heat by thermocouples of dissimilar metals, again increasing efficiency.
Waste heat can be used to boil water to steam for propelling turbines. This recovery creates no additional pollution.
Steam from geothermal sources or from solar arrays can alo power engines and turbines without pollution.
Diesel particulate pollution refers to the microscopic particles emitted from diesel engines, which can pose health risks when inhaled. These particles are a component of air pollution and can contribute to respiratory issues, cardiovascular problems, and other health concerns. Various regulations and technologies are in place to reduce diesel particulate pollution and its negative impacts on public health and the environment.
The amount of pollution a truck produces depends on factors like its age, engine type, and fuel efficiency. On average, a diesel truck can emit about 4.8 metric tons of carbon dioxide per year, along with other pollutants like nitrogen oxides and particulate matter. Electric trucks have zero tailpipe emissions, significantly reducing pollution.
The two main ways to reduce pollution associated with car exhaust fall into to general categories: Don't use as much gas, and create as little pollution with the gas that you do use as possible.Don't use as much gas:Obviously the less gas you use the less pollution you create. This can be achieved by driving as little as possible (bike when possible, walk car pool, plan your trips) or by using a car with a smaller engine.Create less pollution:The standard solutions* Keep the engine tuned * Keep tires inflated properly * Drive properly NOTE: Use ethanol based fuels does not appear in this list as the total accounting of eethanol s not well defined (field to fuel tank) and some evidence exists that ethanol fuels contribute organic to the car exhausts. Similarly the overall pollution footprint of hybrids and electric cars has not been established.
Air pollution is created by human activities such as burning fossil fuels, transportation emissions, industrial processes, agriculture practices, and waste disposal. These activities release pollutants into the atmosphere, leading to a degradation of air quality and negative impacts on human health and the environment.
The amount of pollution a tractor emits in a day can vary depending on factors such as the type of tractor, engine size, load, and usage. On average, a tractor can emit several kilograms of greenhouse gases, such as carbon dioxide and methane, in a day. However, newer models with better emission control systems can help reduce pollution levels.
Atmospheric engines, or 'Stirling' engines, can make use of waste or naturally occuring heat differences, to work.
is it possible to construt a heat engine that will not expel heat into the atmosphere
Diesel is a lower grade of fuel than say, 95 octane unleaded, hence it creates more pollution.
The engine in bigger cars are larger than of small cars as their engine is made up for heavy works.The cars engine powers denoted as CC (Cubic centimeters) as the power increases the engine uses more fuel, so it creates more pollution.
Diesel Engine. Due to high caloric value it gives more high milage but it creates pollutions due to incomplete burningg of some gases.
Can you? Yes, you can. Should you? No, you should not. It is first of all illegal and creates pollution. And your engine may not run as well without it as it did with it installed.
The engine itself creates Vacuum once it is running.
The engine compression creates enough heat for the fuel to combust.The engine compression creates enough heat for the fuel to combust.
Gasoline is burned by a car engine.
Generally about a square foot. This is to optimize the amount that can fit in it and put as many features as possible to improve it. The engine size does cause a bit of pollution though.
Pollution.
the forced out particles from the engine operation and are forced out into the atmosphere to the surface protection.