2012年(464)
分类: Delphi
2012-08-15 17:32:53
In 2012, AGG1 and World of Asphalt will again be the place to network with
industry peers and examine the latest technologies and emerging trends. Some 93
percent of attendees at the last event said the shows were valuable to their businesses and 97
percent said they were satisfied or very satisfied with the shows.
NSSGA
Annual Convention will also be held at the Westin Charlotte hotel adjacent to
the Convention Center. This close proximity allows for all convention attendees
to easily attend AGG1 and the World of Asphalt. Internal combustion engines have
been around for some 150 years. They are undoubtedly one of the most significant
inventions in human history, but they are not without their problems. The
metal-on-metal movement means they need constant lubrication, they have lots of
moving parts, get very hot, are heavy, fuel is getting more scarce and more
expensive, and new laws to cut harmful exhaust emissions mean a lot of expensive
technology needs to be used to reduce pollutants.
“Heating with concrete,
cooling with clay” – the provocative title of the second discussion round with
German winners of the Holcim Awards again attracted more people than the lecture
theatre could accommodate at the Aedes Architekturforum in Berlin. Some 130
people including a group of guests from Holcim Southern Germany showed interest
in learning more about the “Smart Material House” in Hamburg and an educational
center for sustainability in Marrakesh, Morocco. But for all their drawbacks,
they are wildly successful. There are billions of engines in use around the
world today in cars, trains and ships, as well as in industrial applications and
off-road equipment like construction machines. Diesel engines remain the
overwhelmingly popular choice to power equipment in this industry.
Following
presentations by the design teams, architecture critic Andreas Ruby moderated a
podium discussion seeking answers to the question on how building materials can
be used to the best – taking geographic, climatic and above all sustainability
factors into consideration.
As Gwenne Henricks, president of Perkins explains
in this month's interview, that is because diesel engines have a lot going for
them. They are power-dense, meaning you get a lot of energy out of a small
package, the fuel is easily portable, and a reasonably manageable quantity will
keep an engine running for a long time.
Whereas architects Frank Barkow and
Regine Leibinger together with engineers Mike Schlaich and Matthias Schuler
designed a multistory “card house” for IBA Hamburg using precast concrete wall
elements and wooden floors, architects Anna Heringer and Salima Naji together
with materials specialists Martin Rauch and Elmar Nägele re-invent traditional
building techniques and show in their large-scale educational center the
potential offered by combining modern
technology with low-tech building material such as natural clay.