How Long to Read Radiative Cooling Strategies by Bio-Inspired Nanowire Trees

How Long Does it Take to Read Radiative Cooling Strategies by Bio-Inspired Nanowire Trees?

It takes the average reader 1 hour and 2 minutes to read Radiative Cooling Strategies by Bio-Inspired Nanowire Trees by Anirudh Krishna

Assuming a reading speed of 250 words per minute. Learn more

Description

Spectral thermal radiation properties play a vital role in governing heating and cooling phenomena on surfaces, especially those exposed to the sun in the ambient environment. The wavelength of incident solar radiation responsible for surface heating typically ranges from 200 nm to 2500 nm. Radiative cooling, by means of utilizing the coldness of outer space (~2.7 K), presents a possible solution of avoiding undesirable heat generation. The atmospheric transmission window, which enables radiative cooling in the ambient environment, ranges from 8 mum to 14 mum to reemit incident radiation to outer space. Effective utilization of radiative cooling involves controlling the surface emissivity spectrum, thereby governing the thermal energy exchange. Here, we propose a novel emissivity control technique based on nanowire tree structures that are inspired by the unique colorization of Morpho butterflies. The proposal offers the design of the nanowire tree aided by computational methods which show that the nanowire tree keeps the emissivity below 0.1 in the spectral range between 1 mum and 6 mum, which minimizes solar heating, while keeping the emissivity above 0.8 in the range beyond 8 mum, which maximizes the cooling opportunity in the ambient environment. This enables a near 6°C temperature reduction with respect to the ambient, which is substantially lower than bare surfaces of common engineering materials (e.g. 90% lower than Al2O3). The nanowire trees offer multi-dimensional geometric variations for enhanced tunability of emissivity, providing a significant breakthrough in thermal management methods.

How long is Radiative Cooling Strategies by Bio-Inspired Nanowire Trees?

Radiative Cooling Strategies by Bio-Inspired Nanowire Trees by Anirudh Krishna is 62 pages long, and a total of 15,624 words.

This makes it 21% the length of the average book. It also has 19% more words than the average book.

How Long Does it Take to Read Radiative Cooling Strategies by Bio-Inspired Nanowire Trees Aloud?

The average oral reading speed is 183 words per minute. This means it takes 1 hour and 25 minutes to read Radiative Cooling Strategies by Bio-Inspired Nanowire Trees aloud.

What Reading Level is Radiative Cooling Strategies by Bio-Inspired Nanowire Trees?

Radiative Cooling Strategies by Bio-Inspired Nanowire Trees is suitable for students ages 8 and up.

Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.

When deciding what to show young students always use your best judgement and consult a professional.

Where Can I Buy Radiative Cooling Strategies by Bio-Inspired Nanowire Trees?

Radiative Cooling Strategies by Bio-Inspired Nanowire Trees by Anirudh Krishna is sold by several retailers and bookshops. However, Read Time works with Amazon to provide an easier way to purchase books.

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