Kuna ma kuidagi ei jöua oma hiljutise Ameerika-reisu kajastamiseni, rääkimata Prantsusmaa-mälestustest (sest pikk ja suur töö teatavasti tahab ka tugevat pealehakkamist, mida mul just praegu ei ole), siis täiendan ja parandan olemasolevat.
Köigepealt: sain vastukaja eestlaselt Dubaist.
Tema lisainfo sobiks kyll hästi eemise post-scriptumi taha, aga kuna ajaline vahe on selle kirjutamisest tänasega suur, alustan tema tähelepanekuga hoopis uut mötteköiku - uutest asjadest ja uutest syndmustest:
"Muideks, see metroo saab järgmisel aastal valmis ja ta laheb ikka maa alla ka. See tunnel pidi juba valmis olema. Sealt Rock Cafest edasi on Jebel Ali Free Zone ja sinna tehakse uus lennujaam. Nii et hakkab käima ühest lennujaamast teise. Ja Dubai torni ametlik nimi on jah Al Burg, aga rahvas nimetab veel Burg Dubai./---/"
Uus lennujaam! Vau...praegunegi on ju suur ja kaunis:
Dubai Rahvusvaheline Lennujaam (pilt internetist)
Teine uudis on Lufthansa kliendilehelt "exclusive", mis tuli postkasti eile. Selle artiklis Green Wonders räägitakse, et maailma tipparhitektidel on plaanis mitu eco-skyscrapers'it e. öko-pilvelöhkujat, kuid kysimus on selles, kas neid projekte ka reaalselt tellitakse?
Araabia naftasheigid pole seni möelnud homsele päevale, ehkki mitmed taastuvenergia kasutusega tehnilised lahendused pilvelöhkujate tarvis olid aastaid täiesti olemas ja möned hoonedki mujal maailmas valmis. Väliselt uhkete ja erikujuliste projektide pakkujad, kes ilmselt röhuvad sheikide uhkust köditavale hoone pompöössele väljanägemisele, piiravad rahamehi igast kyljest.
Kuid yhel päeval juhtus ime.
"Don't you have anything that is based on an interesting idea for a change?" Abdel Hadi Sadiq Pasha griped one day in a meeting.
("Kas teil pole vahelduseks midagi pöhimötteliselt uut/huvitat välja pakkuda?" kysis uusi projekte käsitleval koosolekul Abdel Hadi Sadiq Pasha).
Juhuslikult kuulis seda kysimust saksa arhitekt Eckhard Gerber. Tema byroo oli juba projekteerinud King Fahad'i nimelise Raamatukogu ja ka teaduskeskuse Riyadhis.
Gerber on uhke oma öko-pilvelöhkuja projekti yle.
See on ehitis, millel väljastpoolt vörkudest tulev energiatarbimine yldse puudub, köik vajaoleva toodab ehitis ise tuulest, päikesest ja veest. 322 meetrini ulatuv ja 68 korrust omav hoone on projekteeritud ka uusimatest materjalidest, milledest näiteks vaakum-klaas tuleb turule alles sellel aastal. Silindri kuju annab päiksele köige vähem kuumutamisvöimalust niigi. Maja on nagu termospudel, mis suvel hoiab jahedust ja talvel sooja.
Interneti andmetel tuleb Burj-al-Taqa (ka taqwa - tölkes energia-torn) ehitamisele Dubais. Torni idee on vöetud iidse pärsia (Iraan) aladelt. Rikkad pärsia kaupmehed lasid endale ehitada tuule-torne: badghirs (barjeer's pärsia k.), mis on sisuliselt looduslikud konditsioneerid.
Lisan tehnikahuvilistele Gerber'i pilvelöhkuja tehnilise tööpöhimötte, kust on näha, kuidas ta kasutas ära tuuletorni pöhimötet ja kombineeris seda muude kaasaegsete tehnoloogiatega:
Gerbers's design is designed to function in a similar way: The negative pressure created by winds breaking along the tower will suck the spent air from the rooms out of the building via air slits in the façade. The plan is for fresh air to be pumped into the interior of the building by means of a duct system at the same time.
Seawater will be used to pre-cool the air. Three large cooling units in the giant building's cellar will eventually lower the temperature to a comfortable 18 degrees Celsius (64.4 degrees Fahrenheit). Transparent ducts will channel the fresh air into spacious atriums and from there into the corridors and offices. The building's designers want to use high-quality steel ropes to suspend hanging gardens inside the air ducts, transforming a feature which is often regarded as an architectural blemish and hidden behind sheet metal in other buildings.
At the same time, the underground cooling center also cools the water in the pipelines running through the underside of each floor's ceiling. The system of tubes is designed to be a modern air-conditioning system which cools gently without unpleasant air currents.
However the most impressive feature of the building is that the operators of the tower will not need to use any electricity from outside sources. A 60-meter (197-feet) turbine on the tower roof and two photovoltaic facilities with a total area of 15,000 square meters (161,459 square feet) will produce sufficient electricity to meet the building's needs. Additional energy is provided by an island of solar panels with an area of 17,000 square meters (182,986 square feet), which drifts in the sea within viewing distance of the tower.The excess electricity will be used to obtain hydrogen from sea water by means of electrolysis. The hydrogen is then stored in special tanks. At night, the energy facility uses fuel cells to generate electricity, keeping the tower working through the hours of darkness. In the daytime, on the other hand, highly reflective mirrors on the roof direct the sunlight onto a cone of light that goes through the center of the building and provides its various floors with plenty of natural light.
Seawater will be used to pre-cool the air. Three large cooling units in the giant building's cellar will eventually lower the temperature to a comfortable 18 degrees Celsius (64.4 degrees Fahrenheit). Transparent ducts will channel the fresh air into spacious atriums and from there into the corridors and offices. The building's designers want to use high-quality steel ropes to suspend hanging gardens inside the air ducts, transforming a feature which is often regarded as an architectural blemish and hidden behind sheet metal in other buildings.
At the same time, the underground cooling center also cools the water in the pipelines running through the underside of each floor's ceiling. The system of tubes is designed to be a modern air-conditioning system which cools gently without unpleasant air currents.
However the most impressive feature of the building is that the operators of the tower will not need to use any electricity from outside sources. A 60-meter (197-feet) turbine on the tower roof and two photovoltaic facilities with a total area of 15,000 square meters (161,459 square feet) will produce sufficient electricity to meet the building's needs. Additional energy is provided by an island of solar panels with an area of 17,000 square meters (182,986 square feet), which drifts in the sea within viewing distance of the tower.The excess electricity will be used to obtain hydrogen from sea water by means of electrolysis. The hydrogen is then stored in special tanks. At night, the energy facility uses fuel cells to generate electricity, keeping the tower working through the hours of darkness. In the daytime, on the other hand, highly reflective mirrors on the roof direct the sunlight onto a cone of light that goes through the center of the building and provides its various floors with plenty of natural light.
