共查询到19条相似文献,搜索用时 269 毫秒
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正一直以来都在久肆宣传"氢燃料"的优越性,虽然早在2005年,劳埃德就提出了不同看法,但是主流思想却依旧强势。而今又有一位学者——朱利安·考克斯指出,氢燃料电池汽车并没有那么环保。她认为:目前氢燃料电池汽车比电池电动车昂贵得多,并且在接下来的几十年内都会如此。虽然这种情况会使得氢燃料电池汽车在大众市场上短期内不具有竞争力,但是大量的政府资金,依旧不断地注入这些不具有竞争力的车辆及其配套基础设施的研究和开发中。而 相似文献
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青海省的牧区和农村普遍存在以牛粪作为燃料的现象.牛粪燃料虽然给人们的生活带来了方便,但是影响社会的可持续发展.因此,应该调整产业结构,发展"阳光能源"作为牛粪燃料的替代品.作为传统牛粪燃料替代品的"阳光能源"在青海省具有开发可能性.为了使燃料置换的可能性变为现实性,还需要构建一套包括政府宏观调控、产业结构调整、生态意识培养、社会保障在内的机制. 相似文献
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介绍日本本田汽车公司在氢燃料电池、加氢站方面的研究开发的一些新动态和进展,以及其新研制的FCX-V4氢燃料电池车。 相似文献
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该文介绍了美国公共汽车使用代燃料的进展情况,并对不同的代燃料,从环境保护效益、技术成熟程度和成本效益的可行性等方面进行分析。 相似文献
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介绍二甲醚的性质和提取、国内外二甲醚汽车的发展现状,详述上海新开发的二甲醚城市客车的设计原则、主要配置和燃料系统,及其在安全方面的特殊要求。 相似文献
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《资源与人居环境》2007,(3):23-24
过去,氢主要作为化工原料。从20世纪70年代初以来,研究将氢用于发电、各种机动车和飞行器的燃料、家用燃料等。在作为能源使用时,无污染物产生,燃烧产物只是水,生产氢的原料也是水。它的热值高,每克液氢可达120KJ,是汽油的28倍。一般说,氢是一种清洁的能源。今后技术、经济过关,使用氢能可以解决因化石燃料而引起的环境、生态等严重污染问题。由于氢能的储运性能好,使用也方便,可转化性优于其它各类能源,安全性也与汽油相当。太阳能、风能、地热、核能、电能等均可转化成氢加以储存、运输或直接应用,氢是一种理想的载能体。随着科技进步,氢能开发利用很有前途。 相似文献
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The concept of ‘fuel poverty’, the inability to afford adequate warmth at home has become a focus for social policies in recent years. Increasing numbers of households dependent on social security and the likelihood that fuel will become more expensive mean that the existing problem of fuel poverty may become even greater. The data on fuel expenditure and related variables from three national surveys are used to evaluate various policy options for relieving fuel poverty. Three policies for increasing incomes to pay for fuel costs are considered, increasing benefits, introducing a fuel allowance or extending the existing scheme of additional heating requirements. The policies for reducing fuel expenditure are also considered, restructuring tariffs, changing payment methods and conservation measures. The case is made for priority to be given to an advice and information campaign and a conservation programme aimed at poor households who are unable to respond to existing price signals and grants. 相似文献
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David L. Greene 《Economic inquiry》1991,29(1):101-114
Since 1974 the average fuel economy of new cars has doubled from fourteen to twenty-eight miles per gallon. Shifts in sales to more fuel efficient models within a product line accounted for little of the improvement. This paper explores the use of pricing strategies to shift sales to achieve a legislated fuel economy target. A multinomial logit model is used to compute surcharges and rebates that leave consumer satisfaction unchanged yet increase the sales-weighted average fuel economy. The results suggest pricing strategies are efficient for small improvements in fuel economy, but are expensive for large improvements. 相似文献
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Energy conservation in the residential sector depends, in large measure, upon the willingness of builders and homeowners to invest in the durable goods which result in an energy efficient house. Since these durable goods generally become attached permanently to the dwelling unit and since ownership of the unit is likely to change within the expected lifetime of the installed equipment, the incentive to invest in conservation measures depends upon the efficiency of the housing market in capitalizing the financial benefits of future fuel savings. This paper examines housing market efficiency in this regard by first estimating an hedonic price index with the annual fuel bill included as an explicit attribute of the structure. Then, from the estimated hedonic price of a one-dollar reduction in annual fuel costs and assumed fuel price escalation rates and remaining lifetimes of the equipment, implicit housing market discount rates are calculated. The relatively low estimated discount rates indicate that the housing market performs efficiently in capitalizing future fuel savings. 相似文献
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介绍了燃气报警器的工作原理及各种应用场合,探讨了燃气报警器的选择,指出除考虑灵敏度、稳定性、使用寿命、性价比等报警器本身性能以外,还应结合生产企业的资质、售后服务等多方面综合考虑,使用合适的燃气报警器。 相似文献
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在分析哈尔滨市燃气行业现状的基础上,提出对其实行市场化改革的设想——实行特许经营制度,通过对燃气企业实行股份制改造,提高运营管理效率,扩大投资渠道,从而达到经济效益与社会效益相统一的目的。 相似文献
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从上海市南地区民用燃气应用现状出发,分析目前发展中存在的问题,并以小型燃气空调、燃气壁挂炉、燃气干衣机等燃气新设备为例,探讨民用燃气市场的发展空间,指出应该积极推广新型民用燃气设备并在燃气设计中予以配套,以提高单户居民的用气量。 相似文献