ITM Power has released an updated cost structure for hydrogen generated by its electrolyser products, one year on from its last update . Efficiency improvements, electrolyser cost reduction and more accurate vehicle refuelling data provided by Hyundai have all helped reduce the projected cost of hydrogen. This year’s cost structure is based upon a 1 MW, 446 kg/day, HGas system comprising sixteen individual HGas stacks and the accompanying balance of plant. For comparison, last year’s cost structure was based on a 100 kg/day HFuel system. ITM Power’s assumptions for the 2013 HGas system are as follows: Generation capacity: 446 kg/24 h Amortisation period: 10 years Electricity price: 3.5 p/kWh Water price: 0.13 p/litre System efficiency: 55 kWh/kg Annual service: 5% of sale price Utilisation factor: 70% With all that in mind, ITM Power projects a hydrogen cost of 4.19/kg within a 10 year capital amortisation period and 2.69/kg thereafter. These are 33% and 23% reductions on last year’s projections, respectively, and represent good progress in terms of efficiency and cost reduction. Importantly, the European cost targets for hydrogen generation (as published in ‘A portfolio of power-trains for Europe’ ) are
Text-130721.pdf Acombination of the Lagrangian mechanics of oscillator vibration, moleculardynamics decomposition of volume evolution, and Raman spectroscopy of phononrelaxation has enabled mapping of the V H (r) and the V L (r)potential paths for hydrogen-bond length symmetrization in ice undercompression. Results show that both oxygen atoms in the O:H-O bond shift initiallyoutwardly with respect to the coordination origin (H), which lengthens the O—Odistance from 0.2597to 0.2733 nm by 0.0136 nm. Both oxygen atoms then move forward inthe right along the O:H-O bond by different amounts upon being compressed, approachingidentical lengths of 0.112 nm . Evidencing the essentiality of theasymmetric short-range interactions (the minimal V L (r) for the O:H isat -0.25 eV, and the minimal V H (r) for the H-O is at -3.97 eV) andthe inter-electron-pair Coulomb repulsion in determining the O:H–O relaxationdynamics, findings may complement the “double well potential” mechanism for the“hydrogen proton frustration” in deepening the understanding of water and ice.
题目如何翻译请多指教。 这是发表在实验生物学上的一篇评论性文章，是对我们首次发表使用氢气盐水治疗疾病的，给我们的评价比较高，我们认为是比较客观。毕竟 真金不怕火炼。 HYDROGEN SALINE A REAL GAS 网上全文： First published online July 17, 2009 Journal of Experimental Biology 212, v-a (2009) Copyright 2009 The Company of Biologists Limited doi: 10.1242/jeb.021592 This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Google Scholar Articles by Milton, S. L. PubMed Articles by Milton, S. L. Social Bookmarking What's this? Outside JEB HYDROGEN SALINE A REAL GAS Sarah L. Milton Florida Atlantic University smilton@fau.edu
标签: hydrogen
