My name is Brian C. I came from Taiwan, and , I am currently majored in chemical engineering. I am extremely interested in renewable energy which is the reason I am on this program.
Our abroad group airline reservation to Stockholm was canceled 10 hours before departure; the abroad group was broken into 5 groups, the majority of the abroad group us split into 2 groups arriving separately on 11th. Dr. Hodge’s group who arrived on early (May 11th) went to the museum Vasa and scout out Gamla Stan the location that we will be visiting tomorrow, after the rest of the group member have arrived, the entire abroad group was exhausted after arriving at the hostel.
The group has a breakfast in the hostel cafeteria, the food provided was different from most US hostels, our breakfast mostly consist of a sandwich components, ham, cheese, bread, tomato etc. The most interesting thing in the cafeteria was the fresh orange juice squeezing machine, it was delicious.
After breakfast, the entire group went to Gamla Stan, The town was set up during the 1300 century. There are about 3000 people living in the old city today. Most buildings are from the 1700 and 1800 century. (2010) afterwards for a quick tour, until noon, Gamla Stan is the old town of Stockholm consists of multiple monuments and museum, souvenir shops. It was a great tour however we had to meet up with Bjorn Cederquist the designer of GlashusEtt at noon.
We arrived at Hammarby Sjostad GlashusEtt, an eco friendly building, The building is build out of glass windows, present a clean and futuristic look. Multiple special designs are also implemented into the building, solar panel generator, Hydrogen fuel cell, automatic blinder, vacuum sewage system, rain water collector.
Bjorn Cederquist, the city planner of the neighborhood, gave us a presentation focusing on the Hammarby neighborhood, mainly talking about how the planning requires multiple authorities from the government, designer, investor and the people in hammarby. The strict government policy and active design planning re
sults in an extremely well organized city with modern eco-friendly design, where people in the city can enjoy a suburban life style.
After the presentation the group rushes back to the hostel, collect our luggage and start our overnight journey on a train to Lulea.
We attend the biomass gasification of methanol production lecture by Thomas Ekbom, lecture was pretty interesting, Thomas provide us with a prize for answering some questions in the lecture. The lecture talks about the advantage of methanol and slowly work its way into the production method of methanol, then into the challenges that the methanol face as a fuel in both marketing perspective and production difficulties. Thomas ends the lecture with another challenge, this time Thomas have us split into 2 groups, the questions were consist of off topic material, it was a lot of fun.
After the lecture, our group had lunch at a Swedish buffet right beside a beautiful lake. Dr. Hodge showed us around the Liquid hot water pretreatment lab, liquid hot water pretreatment of wood chip to extract hemi-cellulose, which is a polymer similar to cellulose, however the polymer include xylan, glucuronoxylan, arabinoxylan, glucomannan, and xyloglucan sticking out of cellulose chain (2014), which makes it much easier for the enzyme to digest to produce glucose. The wood chips are fitted into a pressure cooking cylinder, and then it was heated up to 170 deg C in the autoclave for 2 hours and 30 minutes. Processes with pictures are shown down below.
During the 2 and a half hour wait, we went to a conference room to work on our blog update, while Dr. Hodge give us a brief lecture on the liquid hot water pretreatment along with the gasification and the final biofuel synthesis process.
After the long day of lectures and tour, we went back to the cabin and cook our selves some delicious Swedish meatball pasta, layback and play card games until sunsets.
1. Svenska, S. p. (2006). The Old Town is Stockholm’s original area. Lulea, Sweden: R.E.G. Retrieved May 14, 2014, from http://www.old-town-stockholm.com
2.Tengbom. (2002). Glass House One/GlashusEtt. Hammarby Sjöstad, Stockholm, Sweden: Author. Retrieved May 15, 2014, from http://www.tengbom.se/en-US/projects/48/glass-house-one/glashusett.
3. Properties of Saturated Steam – SI Units. (n.d.). In http://www.engineeringtoolbox.com/saturated-steam-properties-d_101.html. Retrieved May 15, 2014, from http://www.engineeringtoolbox.com/saturated-steam-properties-d_101.html
4.Structural comparison to cellulose (2014, February 9). In Hemicellulose. Retrieved May 14, 2014, from http://en.wikipedia.org/wiki/Hemicellulose.