Alternative Energy

Can a Liquid Hydrogen Storage Tank BLEVE?

Oct 17, 2011

Subramanya Nayak

Abstract A BLEVE (boiling-liquid expanding-vapor explosion) occurs when a tank containing liquefied gas ruptures, resulting in the instantaneous release of the vapor, boiling liquid, missiles (tank fragments), and blast wave 1 . The most common type of the BLEVE is caused when the external wall of...

Liquid-Liquid Equilibrium Compositions for the Iodine-HI-Water System of the Sulfur-Iodine Cycle At Elevated Temperatures and Pressures

Oct 16, 2011

Adam S. Klett

Liquid-liquid equilibrium (LLE) phase behavior was investigated for the ternary system iodine-hydroiodic acid-water (I 2 -HI-H 2 O) at the elevated temperatures and pressures of interest for the reactive distillation column of the Sulfur-Iodine Cycle. A continuous-flow apparatus, with wetted parts...

Thermochemical Hydrogen Production by Alkali Metal Oxides

Oct 16, 2011

Hiroki Miyaoka

In this work, we have focused a thermo chemical hydrogen production from water by using alkali metal oxides. This system consists of three step reactions. First one is H 2 generation by the reaction of hydroxide and metal 2MOH+2M→2M 2 O+H 2 (endothermic). From the oxide as the product of first...

Electrostatic Stabilization of Silicon Nanocrystal Colloids for Solution-Processed Photovoltaics

Oct 16, 2011

Lance M. Wheeler

The tunable optoelectronic properties of semiconductor nanocrystals (NCs) have garnered significant attention for photovoltaic device integration. Additionally, solution processing of semiconductor nanocrystals (NCs) provides a low-cost, scalable technique for the fabrication of third-generation...

H2 Generation From Aqueous Methanol Electrolysis Using Hybrid Electrocatalysts Based Electrodes

Oct 16, 2011

Srihari K. Maganti

Methanol electrolysis offers an elegant path to generate pure H 2 at lower temperatures (5-120ºC), which subsequently can be used in a low power fuel cell. This process appears promising as it typically uses lower temperatures and voltages for H 2 generation as compared with the direct oxidization...

Atomic Layer Deposition of Nanoscale Materials for Energy Conversion

Oct 16, 2011

Marja N. Mullings

For a number of technologies, including microelectronics and energy conversion devices, feature sizes are becoming increasingly small, and the need for precise control over costly materials continues to grow. In addition to decreasing length scales, it is important that limited natural resources...

Investigations On Geothermal Heat Pump Systems Using Treated Waste Water As Energy Source

Oct 16, 2011

Huajun Yuan

Geothermal energy can be used for generating electricity and providing direct heat for applications such as space heating and cooling, water heating, aquaculture and industrial processes. Geothermal heat pump (GHP) is a central heating/cooling system that pumps heat to or from the ground to provide...

Development of a Scalable Bottom-up Nanomanufacturing Platform for Highly Efficient Photovoltaics

Oct 16, 2011

Peng Jiang

Solar energy is clean, abundant, and renewable, yet it is vastly under-utilized in the current world. Although crystalline silicon solar cells are the premier candidate for renewable and environmentally friendly solar energy conversion, high manufacturing cost has prevented such cells from...

HycycleS: Materials and Components for Hydrogen Production by Sulphur Based Thermochemical Cycles - Summary of Key Results From the European Collaborative Project

Oct 16, 2011

Rachael H. Elder

HycycleS is a European Framework 7 project focussing on the decomposition of sulphuric acid, a key step in the Hybrid Sulphur and Sulphur Iodine thermochemical cycles. The final aim is to bring thermochemical water splitting closer to realisation by improving the efficiency, stability,...

Nuclear Wind Hydrogen Systems for Variable Electricity and Hydrogen Production

Oct 16, 2011

Charles W. Forsberg

Nuclear Wind Hydrogen Systems For Variable Electricity and Hydrogen Production Charles Forsberg and Geoffrey Haratyk Massachusetts Institute of Technology In a low-carbon world, the primary energy sources will be nuclear and renewables. Both energy sources are capital intensive with low operating...

Mechanism of Li Adsorption On Carbon Nanotube-Fullerene Hybrid System: A First-Principles Study

Oct 16, 2011

Seung Soon Jang

The lithium (Li) adsorption mechanism on the metallic (5,5) single wall carbon nanotube (SWCNT)-fullerene (C 60 ) hybrid material system is investigated using first-principles method. It is found that the Li adsorption energy (-2.649 eV) on the CNT-C 60 hybrid system is lower than that on the...

Glid ARC Plasma Conversion of Pyrolysis Gas Into Syngas

Mar 14, 2011

Fela Odeyemi

Pyrolysis gas is a product of Biomass, Municipal Wastes or Coal gasification process that contains H2, CO as well as unreacted light hydrocarbons and heavy hydrocarbons such as tar. These undesired hydrocarbons diminish Pyrogas fuel value thereby making significant removal of the unwanted...

Power System Design for a Hybrid Fuel Cell Vehicle: A Globally Optimal Approach

Mar 13, 2011

Syed Kaschif Ahmed

The notion of a fuel cell powered vehicle has captured the imagination of many as a clean/efficient alternative to the internal combustion engine. However, the capital cost of a fuel cell power unit is significant, and threatens to be a show-stopping hurtle. As such, many have looked to hybridize...

Raman and XPS Investigation of Copper Promoted Transition Metal Doped Ferrites – High Temperature Water Gas Shift Activity

Nov 11, 2010

Krishna Reddy Gunugunuri

In our previous studies, we introduced a variety of metal ions (M = Cr, Mn, Co, Ni, Cu, Zn, and Ce) into iron oxide (spinel lattice) and screened for effectiveness for a high-temperature WGS reaction. The idea was to stimulate the ferrite formation via doping with certain foreign cations and to...

Placement of Catalyst in Electrospun Silica Nanofibers for the Alkaline Hydrolysis of Biomass

Nov 11, 2010

Nathaniel S. Hansen

The use of electrospinning to generate one dimensional materials has garnered significant interest lately due to its inexpensive nature and the diversity of materials fabricated. Recently one dimensional materials have also been investigated to support catalytic nanoparticles to prevent aggregation...

Nano Copper Oxide: From Flame Spray Pyrolysis to Photoelectrochemical Hydrogen Generation

Nov 11, 2010

Chia-Jung Cheng

A systematic experimental study of the synthesis of copper oxide nanoparticles and nanoporous films is presented. Powders were made by flame spray pyrolysis method with end applications in the photoeclectrochemical production of hydrogen. Inhibited particle growth was observed for prticles made...

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