珠江三角洲地区推广LNG汽车的可行性分析

介绍国内外特别是珠江三角洲（简称珠三角）地区燃气汽车的发展现状,从环境保护、经济性、气源保证等方面,对珠三角地区推广液化天然气（LNG）汽车的可行性进行了分析。     

广州市燃气汽车的发展方向

论述了广州市清洁燃料汽车的现状、国内外清洁燃料汽车的发展概况,通过比较压缩天然气汽车、液化天然气汽车、吸附式天然气汽车,指出广州市应选择液化天然气汽车作为清洁燃料汽车的发展方向,提出了推广应用液化天然气汽车的建议。     

LNG汽车应用可行性及技术路径研究

文章通过分析国内外液化天然气LNG(非管输)应用和LNG汽车发展经验,以上海"十二五"天然气大发展为契机,基于上海正在开展的建设LNG汽车示范加气站研究项目,探索LNG(非管输)供应模式,并重点就上海发展LNG汽车等新型用户端应用可行性进行剖析,提出上海LNG汽车应用技术路径.     

珠江三角洲地区推广液化天然气汽车的可行性

珠江三角洲地区具备发展液化天然气汽车的气源条件,在汽车上推广使用能够有效降低汽车尾气污染物排放量的清洁替代燃料,是改善城市大气环境质量的重要途径。从经济性、环保性、技术先进性以及现实条件等多方面看,珠江三角洲地区优先发展液化天然气汽车具有可行性,市场前景广阔。     

燃气作为汽车替代燃料的应用现状及存在的问题

随着我国汽车保有量的迅速增加和天然气在一次能源中重要性的提高,以燃气作为新型汽车替代燃料具有很好的可行性。这类汽车替代燃料主要包括压缩天然气(CNG)、液化石油气(LPG)、液化天然气(LNG)、合成甲醇、二甲醚(DME)以及天然气合成油(GTL)等。文章对它们的应用现状和存在的问题进行了分析和讨论。     

福建省天然气汽车加气技术路线的探讨

根据福建省的气源情况,结合国内天然气汽车加气技术路线的现状,对CNG汽车加气技术路线与LNG汽车加气技术路线在可靠性、经济性、能耗等方面进行比较,探讨福建省的天然气汽车加气技术路线,建议采用LNG汽车加气技术路线。     

LNG汽车加气站的消防设计方案

阐述LNG汽车加气站的一般规模及构成,分析LNG汽车加气站与LPG汽车加气站、LNG气化站在气源的特性、厂站的建设规模等方面的差异,根据相关现行的国内、外设计规范,探讨LNG汽车加气站消防设计方案。     

沪宁高速公路客运发展LNG汽车的可行性

对LNG与柴油在经济性、环保性、安全性和冷能利用方面进行比较,阐明LNG作为客运大巴汽车燃料的优势。对发展LNG汽车的政策、LNG汽车的制造技术、加气站的建站水平和网络化布点等方面进行分析,论证沪宁高速公路客运市场发展LNG汽车是可行的。     

A tank-to-wheel analysis tool for energy and emissions studies in road vehicles

Currently, oil based fuels are the primary energy source of road transport. The growing need for oil independence and CO(2) mitigation has lead to the increasing importance of alternative fuel usage. CO(2) is produced not only as the fuel is used in the vehicle (tank-to-wheel contribution), but also upstream, from the fuel extraction to the refueling station (well-to-tank contribution), and the life cycle of the fuel production (well-to-wheel contribution) must be considered in order to analyse the global impact of the fuel utilization. A road vehicle tank-to-wheel analysis tool that may be integrated with well-to-tank models was developed in the present study. The integration in a demonstration case study allowed to perform a life cycle assessment concerning the utilization of diesel and natural gas fuels in a specific network line of a bus transit company operating in the city of Porto, Portugal.     

天然气汽车的经济性分析

论述了国内外天然气汽车发展现状与趋势,通过研究国内各类天然气汽车的能耗指标、加气站运行参数、天然气与其他能源对比数据,指出天然气作为汽车替代燃料具有一定的经济优势和较大的环保效益,快速发展天然气汽车产业对改善城市大气环境具有重要意义。     

LNG瓶组气化站区域供气方案

从设计、运行方面分析了LNG瓶组气化站区域供气的可行性。LNG瓶组气化站适宜作为区域临时供气的过渡气源,在城市燃气管网的大力发展下,不宜大规模建设。     

城市应急备用气源的燃气互换性探讨

通过对不同情况下的液化石油气混空气、液化天然气、液化天然气混空气与忠县天然气混合后的混合气的华白数、燃烧势进行计算,分析其与城市主气源忠县天然气的燃气互换性．探讨了液化石油气混空气和LNG作为城市燃气应急备用气源的可行性。     

LNG用作汽车燃料的优点

天然气作为车用燃料,与汽油、柴油相比,具有环保性、经济性、安全性等优点,是较佳的汽车代用燃料。     

Natural gas and CO2 price variation: impact on the relative cost-efficiency of LNG and pipelines

This article develops a formal model for comparing the cost structure of the two main transport options for natural gas: liquefied natural gas (LNG) and pipelines. In particular, it evaluates how variations in the prices of natural gas and greenhouse gas emissions affect the relative cost-efficiency of these two options. Natural gas is often promoted as the most environmentally friendly of all fossil fuels, and LNG as a modern and efficient way of transporting it. Some research has been carried out into the local environmental impact of LNG facilities, but almost none into aspects related to climate change. This paper concludes that at current price levels for natural gas and CO₂ emissions the distance from field to consumer and the volume of natural gas transported are the main determinants of transport costs. The pricing of natural gas and greenhouse emissions influence the relative cost-efficiency of LNG and pipeline transport, but only to a limited degree at current price levels. Because more energy is required for the LNG process (especially for fuelling the liquefaction process) than for pipelines at distances below 9100 km, LNG is more exposed to variability in the price of natural gas and greenhouse gas emissions up to this distance. If the prices of natural gas and/or greenhouse gas emission rise dramatically in the future, this will affect the choice between pipelines and LNG. Such a price increase will be favourable for pipelines relative to LNG.     

Economic analysis and energy valorisation of by-products of the wine supply chain: the case of the ‘Mamertino wine PDO’

The paper reports the analysis of biomass derived from maintenance of a vineyard, to assess its potential as an alternative energy source, instead of the usual disposal of the wine supply chain’s residuals. The site studied is within the province of Messina, Sicily, in the area of Mamertino wine PDO, a wine of superior quality. The analysis suggests that use of this kind of biomass may allow a fossil fuel such as liquefied petroleum gas (LPG) to be replaced by a wine wood chip biomass boiler, thus meeting economic and environmental criteria by reason of recycling for sustainability.     

多功能LNG站的技术研究

集调峰、事故应急、汽车加气及储运贸易于一体的大型多功能LNG站,将调峰与事故应急气源站、LNG加气站、L-CNG加气站、仓储贸易等融为一体,具有功能齐全、设备共享率高、造价省、占地少、运行费用低、经济效益好的优点,是一种很有前景的集成度高、性价比好的LNG气化站模式.能较好地解决单一事故应急站设备闲置率过高、经济负担重的矛盾,在构筑安全可靠的天然气供应保障体系的同时,带动LNG产业链中的天然气储运业、现货贸易、天然气汽车产业、LNG卫星站等共同发展.     

Experimental investigation on a CI engine fuelled with bio gas and rice straw additives

Biogas is a new source of fuel for mechanisation of agriculture and village industries. It can be used for running diesel and petrol engines. The objective of the present work is to run a CI engine through biogas and biogas with rice straw as an additive and to analyse its performance through a load test. The experiments in the study consist of three phases. Diesel, diesel and biogas (DF) and with adding an additive (rice straw) to the biogas. The rice straw was dried and pulverised into fine pieces of maximum 1 inch in size and mixed with diesel and biogas with a weight ratio of 20–40% for the experimental purpose. The results show good performance characteristics of biogas in the tested CI engine.     

舟山市建设LNG汽车加气站的经济研究

分析了舟山市汽车加气站售气价格的可承受范围,估算了LNG汽车加气站的售气价格。舟山市建设LNG汽车加气站具有良好的经济效益。     

车船用LNG业务的发展现状与问题

本文介绍了车船用LNG业务的发展现状和布局、制约因素、以及发展中的问题.目前,发展中存在问题包括气源价格问题、气源供应保障、气源运输、市场开发的对策、改装车辆市场的挖掘、LNG加气站的运营服务和投资收益等问题,阐述了LNG加气市场发展的重要时期.     

Experimental investigation of compression ignition engine fuelled by a catalytic fuel reformer

Waste engine oil (WEO) as an alternative fuel for compression ignition (CI) engine is investigated in this study. WEO was thermally cracked with alumina catalyst in the catalytic fuel reformer (CFR). The gas obtained from the CFR was condensed using a water-cooled condenser for analytical purposes. The output of the condenser was named as WEOA (reformulated WEO with alumina catalyst). The different chemical properties of WEOA were analysed. The compositional analysis for diesel and WEOA was made using Fourier transform infra-red (FT-IR) and gas chromatography–mass spectrometer (GC–MS). The experimental investigation was conducted in a single-cylinder diesel engine and the performance and emissions were compared with those of diesel fuel. Experimental results concluded that the performance and emission level are better than those of diesel fuel. This study concludes that environmentally hazardous waste material such as WEO is recycled and converted into a useful resource and serves as an alternative source of fuel for CI engine.