Presentation3

"We can't solve problems by using the same kind of thinking we used when

we created them."Albert Einstein (1879 – 1955)

A skilled sailor would have a better output than an unskilled sailor, or fixed sail.

A skilled sailor would have a better output than an unskilled sailor, or fixed sail.

Logic: If energy is neither created nor destroyed, then all energy that we use remains in the area of use until it transfers elsewhere. Most energy that we use transfers to the atmosphere, and that energy that is used in the urban area is transferred into the urban heat island. If we are able to harvest the energy that is stored in the urban heat island, we are therefore able to harvest our expended energy. This would be a re-use of energy, and therefore and energy loop is possible via heat island harvest.

It is my opinion that the most effective way to harvest the urban heat island is through the harvest of the related convection currents, or urban generated wind.

Additionally, human activities produce waste heat, which adds to ambient energy levels.

Vegetation absorbs energy in photosynthesis, reducing ambient energy levels.

The specific magnitude and intensity of the convection current depends on the arrangement of the surface variations and the ambient energy over time.

The sails would constrict airflow, focusing heat. They would be useful during times of macro-scale weather as well, allowing for the harvest of macro winds in the urban environment, as well as preventing too much heat island loss from this powerful wind, making heat island energy still available during high winds.

Actually, when the hot air rises, it might rise all at once, with a powerful convective force. (tornados over trailer parks)

Some benefits of this ventilation effect might include: improved structural integrity of buidings and roads due to shorter drying times, improved sanitation and therefore reduced likelihood of disease, improved growing conditions, less standing water, less bugs/pests, less risk from waste disposal (feces, rotten food, animal waste)

At some times the pyramid may be cooler than the surround areas. (if it were white, or metal tipped and during the morning) The air would flow down the structure to replace heating urban air. By “puncturing” the airs viscosity barrier the higher elevation allows for an exchange that would not occur in a flat area.

Really, convection isn’t so simple. Heat doesn’t really “rise” according to the laws of thermodynamics. The process of convection can be better understood as gravity acting on the heavier, cool air, which can displace the warm air due to the fluid properties of air.

The urban surface heats constantly, however. Also, as the air rises it steadily cools. Interestingly, the air is polluted, making it heavier than other air, which may be why our heat islands are warming other continents. This also might contribute to the “urban dome” phenomenon, where air only rises a ways, and doesn’t reach the top of the atmosphere. The warm air will only rise until it is “neutrally buoyant”.

The air moves up, and the cool air is warmed as it occupies the ground level. This makes the warm air mass larger, and convection more difficult, but as the air rises, air that is higher in the atmosphere can act on the warm air, meaning that much of the air-flow will not occur at the ground level, which is likely a large factor in why we have difficulty harvesting urban winds at present. It might take specific engineering to keep the heat at ground level longer than normal.

Some off topic thoughts.

green rooftops might have to be placed accurately to maximize power production, as well as solar panels, reflective surfaces, building heights, trees, etc.

Some buildings are having various cool rooftops installed. There are reflectiveand green roofs, as well as solar panels. Vegetation absorbs energy viaphotosynthesis. Reflective rooftops direct energy back out into space, making itunavailable on the earths surface.

The other two rooftops produce electricity or fuel sources. We could also reflect the light to a specific location, like the urban center. Even if it didn’t have a specific target, it would raise the ambient temperature, assisting convection speeds.

An overhead view of the temperature difference of a hot center and cool suburbs

Interesting thought. If the amount of energy determines the temperature, perhaps harvesting energy might cool the air. So wind turbines in the urban area might cool urban air.

Eventually, the wind caused by the moving vehicle settles anyway, and the energy converts to heat. (energy is neither created nor destroyed)

We do a lot of other things to mitigate our heat island that would also be reducing our ability to harvest urban heat.

Some cities on earth will be more prepared for urban heat island harvest. This might prove to be a clear advantage with energy efficiency.

*Or wind on cities might have been cause for the discovery of sails. In order to keep atmospheres pleasant, sails in cities may have preceded sails for transportation.

*

Troy Schmidt for president.

Troy Schmidt for president.

How will we sail all those sails on such short notice? Why does the military get out of everything? They could sail, and they would have something to do domestically, allowing for the upkeep of our military during maritime operations. It might make our military larger than ever before, and more integral. (they would certainly want some of that energy.)

http://www.ipetitions.com/petition/landsailinghighway/