IJS KOLOKVIJ, Petek, 01. 06. 2018; ob 13. uri; prof. dr. Ivan I. Smalyukh

[Tanja Debevec]

Vabimo vas na 17. predavanje iz sklopa "Kolokviji na IJS" v letu 2017/18, ki bo v petek, 01. junija 2018, ob 13. uri v Veliki predavalnici Instituta »Jožef Stefan«  na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu http://www.ijs.si/ijsw/Koledar_prireditev, posnetke preteklih predavanj pa na http://videolectures.net/kolokviji_ijs. 

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prof. dr. Ivan I. Smalyukh

Univerza v Koloradu, Boulder, ZDA

Popotovanje z bakterijami: od odpadkov do nematskih koloidov in gelov do pametnih oken

Za ogrevanje, prezračevanje in klimatizacijo zgradb porabimo okoli 15% vse energije, toda okoli 20% te energije izgubimo zaradi neučinkovitih oken. Toplogredni izpusti, povezani s proizvodnjo in uporabo te energije, znatno prispevajo k podnebnim spremembam. Ali obstaja rešitev za ta problem? V predavanju bomo začeli s fizikalnimi načeli izgube toplote skozi okna, nato pa opisali naš razvoj materialov, ki so prozorni za vidno svetlobo, infrardečo svetlobo pa odbijajo in so obenem odlični toplotni izolatorji. S temi materiali bi lahko nadomestili ali opremili neučinkovita okenska stekla v stanovanjskih in poslovnih zgradbah. Z vrsto zgledov bomo pokazali, kako v proizvodnjo tovrstnih nenavadnih prozornih aerogelov iz odpadkov iz živilske industrije in pivske drozge vključimo bakterije, zaradi česar so taka pametna okna zelo poceni. 

Predavanje bo v angleščini.

Lepo vabljeni!

 

 

 




We invite you to the 17th Institute colloquium in the academic year 2017/18. The colloquium will be held on Friday June 01, 2018 at 1 PM in the main Institute lecture hall, Jamova 39, Ljubljana. To read the abstract click  http://www.ijs.si/ijsw/Koledar_prireditev. Past colloquia are posted on  http://videolectures.net/kolokviji_ijs.

 

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prof. dr. Ivan I. Smalyukh

University of Colorado, Boulder, USA

 

A journey with bacteria: From waste to nematic colloids and gels and to smart windows

 

Heating, ventilation, and air conditioning of buildings account for about 15% of the global energy consumption, but about 20% of this building-related energy is lost because of inefficient windows. Greenhouse emissions associated with producing and using this energy contribute substantially to climate change. Is there a solution to this challenging problem? Starting from the physical principles associated with energy loss through windows, we will describe our development of visibly transparent, infrared-reflecting, thermally super-insulating materials that may replace or retrofit the inefficient windowpanes of residential and commercial buildings. Using many demonstrations, we will discuss how production of such unusual transparent aerogels is aided by bacteria, with the source materials in the forms of waste of food industry and beer wort, to make such smart windows highly affordable.

 

Cordially invited!

 

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