Cover
Acciona’s solar “field” in Alvardo, Spain utilizes a parabolic trough type concentrated solar power system (CSP). Multiple rows of parabolic mirrors supported by a framework fabricated from aluminum extrusions focus the sun’s energy onto absorber tubes. The resulting hot oil from the absorber tubes is piped to the central power block where heat exchangers transfer the energy to water, with the resulting steam powering turbines to produce electricity. (Photo: Hydro Aluminum.)
Articles
World Secondary Aluminum Industry Annual Review
By Rudolf P. Pawlek
Page 6
International Temper Designation Systems for Wrought Aluminum Alloys: Part II – Thermally Treated (T Temper) Aluminum Alloys
By Joseph C. Benedyk
Page 16
Aluminum Extrusions in Solar Power Applications
By Craig Werner
Page 24
Fundamentals of Grain Refining Aluminum Alloys
By J.D. Schloz
Page 30
Hydro’s New Generation Cell Technology: Ready for Action
By Kurt Omholt Austreid
Page 38
Aluminum Can Life Cycle Analysis Helps Quantify the Package’s Sustainability Value: New Study Reveals Dramatic Reductions in Al Can’s Environmental
By Marshall Jinlong Wang
Page 42
Extruders Feeling Pinch of Tightening Billet Supply
By Anna Henry
Page 50
Secondary Smelting Yields Greater Demand for Scrap: Separation Technologies Help Sort it Out
By Michael B. Jenny
Page 54
Logan Aluminum Completes Recycling Center: Features First of its Kind Furnace in North America
Page 56