Car air conditioning is one of the most inefficient methods of achieving thermal comfort in buildings, with 77% to 92% of the energy used to power the system wasted. clearly this needs to be mitigated in order for society at large to allow it. the cost would be immense considering that there are 150 million cars on the road with acs in 2018 alone!
first, let's understand what happens when you turn on your car ac. a heat exchanger compresses liquid freon gas (a hydrofluorocarbon) and pumps it through a centerline pipe molded into an evaporator coil; until it vaporizes between an inner tube and outer tube. to make sure air is cooled fully, convective plates
how does the ac in a car work?
air conditioning is best defined as the removal of undesired heat from an enclosed space. this is achieved through five basic principles of refrigeration, mechanical ventilation, water vapor control, air movement and coolant circulation.
it starts with hot gas moving into a compressor that works like a vacuum pump. this compresses it to about one-third of its original volume. the compressed high-pressure gas enters two intercoolers which lower the temperature of this gas by removing water vapor (or ice) before entering the next set of cylinders which propel this pressurized fluid via rotating drive shafts or pulleys equipped with fan blades designed to create low pressure areas on either side; on exiting at their highest point these modern appliances will be cooled by
does car ac take air from outside?
yes.
this question highlights an important aspect that consumers often ignore when deciding whether or not to replace their car's interior air filter. poor cabin air quality is the number one cause of irritation to drivers and passengers, so it's essential to maintain a healthy riding experience in your vehicle year-round. professionals recommend checking your cabin filters in order to detect how dirty they are by looking for these six signs: unbearably strong new car smell; pollen in the vents; mildew in the vents; dust noticeably accumulating on the outside of vents/outside surface of windows or dashboards; noticeable scratches on dashboards or center consoles due to accumulation dirt/dirt bike greasy film on seats from heavy users spilt food droplets
does car ac use fuel?
yes, but it’s a small amount.
car air conditioners use approximately 1/3 gallon of fuel to run for 12 hours or 5 gallons of fuel to run for one day. the ac will also use around 3-5 gallons of fuel when the vehicle reaches highway speeds and engages its fan at full power to suck in cold air.
how does an air conditioner work simple explanation?
the principle of an air conditioner is actually very simple. it makes it feel cooler outside by using the principle of “heat transfer” where hot air always wants to rise upwards.
an air conditioner extracts energy from the confined space to cool it down, and raises water vapor density so that there are more water molecules in the warm exhaust gases which helps further cool them down for us to breath. you can think about how much water is contained in humid weather as opposed to dry desert winds. humid environments have higher humidity levels than dry ones, which means they're capable of extracting more heat because there's a higher level of opportunity to exchange it with latent heat, or cooled-down gas vapors that just happened to be floating
