有什么研究车辆直接导致全球气温上升?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 09 - t18:08:44z //www.hoelymoley.com/feeds/question/22647 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/22647 10 有什么研究车辆直接导致全球气温上升? Aww_Geez //www.hoelymoley.com/users/20916 2021 - 08 - 02 - t20:16:29z 2021 - 08 - 03 - t22:20:31z < p >我试着寻找自己,但谷歌充斥着全球气温上升的温室气体排放的角度。< / p > < p >我感兴趣的是以下几点:< / p > < p >温室气体,在多大程度上汽车直接导致全球温度上升吗?有研究过吗?即使是一小部分吗?好像有数百英里的道路覆盖着200度的加热器。热量必须去某个地方!

I saw the term "Thermal Pollution" come up, and that sounds like it could be what I'm thinking of.

I often see folks hanging out in their vehicle idling with the AC Running, and think about how inefficient it is. Of course, A/C systems simply "move" the heat from inside the vehicle to outside of it- But an idling engine in the mix is just a huge waste.

enter image description here

//www.hoelymoley.com/questions/22647/-/22649 # 22649 21 LShaver回答的有什么研究车辆直接导致全球气温上升? LShaver //www.hoelymoley.com/users/7741 2021 - 08 - 03 - t00:14:46z 2021 - 08 - 03 - t12:59:15z < p >废热从车辆< >强相比,来自太阳的能量。< /强> < / p > < p > 2018年,< a href = " https://www.iea.org/data-and-statistics/data-browser?country=WORLD&fuel=Energy%20consumption&indicator=TFCShareBySector" rel="noreferrer">total global energy consumption for transport (including road, rail, air, and sea) was 2,890,900 ktoe (kilotonnes oil equivalent), or 330 ktoe per hour (dividing through by 8,760). This converts to 3,837,900,000,000 watts consumed on the earth's surface in an average hour.

The global surface area of Earth is 510,067,420 km2. Dividing through, this works out to 7,525 W per km2, or 0.0075 W/m2. This assumes that all energy used by vehicles ends up as heat, which is a rough assumption, as only 12 to 30% of the energy used by a car is converted to kinetic energy.

In contrast, the sun radiates an average of 340 W/m2 to the Earth's surface.

This is why, despite being only 20% efficient, solar PV could power the world if each country had 100 km2 array, or about 500,000 km2 globally. That's a lot, but still less than 1/10 of a percent of the earth's total surface area.

As comments have pointed out, directly comparing waste heat from vehicles to solar irradiance isn't valid, as these energy sources are coming from and going to different places. But understanding how much greater the sun's energy is (by a factor of nearly 50,000) helps explain why there's more concern about the heat-trapping CO2 from vehicle exhaust, then the heat they directly put into the atmosphere.

//www.hoelymoley.com/questions/22647/-/22650 # 22650 1 computercarguy回答的有什么研究车辆直接导致全球气温上升? computercarguy //www.hoelymoley.com/users/18672 2021 - 08 - 03 - t22:20:31z 2021 - 08 - 03 - t22:20:31z < p >去谈话在评论另一个答案,我将这些信息转化为一个答案。< / p > < p >从2017年在Nature.com上的一篇文章,热量被温室气体相比,人为废热只占大约1%的全球温度升高。< / p > < blockquote > < p >近70%的能源消费在城市占据仅占地球表面面积的2%,和未来的场景表明,全球一次能源消费将上升1.6倍(86.47亿亿kJ)从2010年到2040年(< a href = " http://www.worldenergyoutlook.org/ " rel = " nofollow noreferrer " > http://www.worldenergyoutlook.org/ < / >)。虽然人为热量仅占1%的温室气体强迫,它会导致大部分地区气候变暖,如城市热islands1, 2,城市边界的高度,和城市level2-5小时降水强度,尤其是在晚上。< / p > < /引用> < p > < a href = " https://www.nature.com/articles/sdata2017116 " rel = " nofollow noreferrer " > https://www.nature.com/articles/sdata2017116 < / > < / p > < p >这篇文章说,大多数由这个问题引起的问题是地方区域创建它。城市、工业等都是创建这个废热,但它消散的距离增加。这意味着它不是一个重要的全球问题,但这是一个需要解决的问题。我们需要意识到我们不能忽视99%的温室气体问题解决1%的问题。< / p > < p >自2006年以来,研究了其中的一些问题。根据2020年的文章(屏幕右边的一半),这被认为是足够重要的问题是看着大阪热岛对策技术联盟(硝酸钠)创建。江南登录网址app下载还有2013年和1993年的文章讨论这个问题,所以看着相当,但唯一我可以找到一个号码分配给的数量效应来自大自然的这篇文章我第一次引用。

Osaka Heat Island Countermeasure Technology Consortium (HITEC) was established in January 2006, for the purpose of the development and spread of heat island countermeasure technologies, implementation of measures and verification of their effects, and the collaboration between industry, academia, government, and the private sectors [15].

https://www.sciencedirect.com/topics/engineering/anthropogenic-heat

This next article doesn't say how much this effect causes heating compared to greenhouse gasses alone, but it confirms that it's a fairly local problem in section 2. It also says that to help reduce this effect, we need to reduce the creation of greenhouse gasses. From how I read it, this means that anthropogenic waste heat and greenhouse gasses aren't two different problems, but intertwined. Not to mention that most of this anthropogenic waste heat is created by industries and homes releasing greenhouse gasses to create the heat they use and release.

Cool roofs reduce building heat-gain, create saving air conditioning expenditures, enhance the life expectancy of both the roof membrane and the building’s cooling equipment, improve thermal efficiency of the roof insulation, reduce the demand for electric power, reduce resulting air pollution and greenhouse gas emissions, provide energy savings, and mitigate UHI effects.

https://www.hindawi.com/journals/usr/2011/497524/

Baidu
map