ISE is pleased to announce the winners of the 2013 Outstanding Energy Paper Awards ($500 prize for each)
Ethanol or Bioelectricity? Life Cycle Assessment of Lignocellulosic Bioenergy Use in Light-Duty Vehicles
Jason Luk (Civil), a PhD candidate, with Prof. Heather MacLean and Brad Saville report a life-cycle analysis modelling well-to-pump, pump-to-wheel, and vehicle cycle stages for a range of vehicles including Hybrid Electric, Plug-in Hybrid, Battery Electric, and Conventional vehicles. The study finds that while both biofuel and bioelectricity have comparable impact on GHG emissions, regional characteristics may still create conditions under which either may be superior. [Environmental Science & Technology, http://dx.doi.org/10.1021/es4006459 ]
Algae biofilm growth and the potential to stimulate lipid accumulation through nutrient starvation
Peter J. Schnurr, (ChemE) and Profs. Grant Allen and George Espiehave developed an algae biofilm growth system allowing them to study the growth kinetics and neutral lipid productivities of specific algae. The study shows nutrient starvation is not an effective method of increasing lipid production in biofilms. The biofilm growth system does however demonstrate very favorable lipid productivities in comparison to conventional algae crops.
[Bioresource Technology http://dx.doi.org/10.1016/j.biortech.2013.03.036]
Polyfullerene Electrodes for High Power Supercapacitors
Tyler Schonn (Chemistry), and Prof. Dwight Seferos are looking at highly capacitive fullerene polymers to act as negative charge-accepting electrodes in a supercapacitor. Most SC are limited to positive charge-accepting materials that are only stable in neutral or positively charged states thus diminishing the operating potential, energy and power of the device. By enabling a negative charge-accepting material the study highlights the potential for supercapacitors to greatly increase their operating potential.
[Advanced Energy Materials http://dx.doi.org/10.1002/aenm.201301509]
Examining the LEED Rating System Using Inverse Optimization
Sarina Turner (MIE), and Prof. Timothy Chan have taken an inverse optimization approach to study the effects of weighted credits in version 3 of the LEED Rating System and their impact on criticisms in versions 1 and 2 that builders ‘point chased’ by incorporating the easiest and cheapest design elements to meet minimum thresholds. The study finds that builders have not placed equal value on all credits, particularly when factors such as cost, building type, size, and certification level play a role in how the credits are valued. [Journal of Solar Energy Engineering http://dx.doi.org/10.1115/1.4025221]