Experimental research on displacing coal bed methane with supercritical CO2

The high-gas and low-permeability are the common problems of China coal mine, which restrain the mining of coal-seam gas resources safely and efficiently. Hence, to solve the problem of low permeability of coal seam, an experimental system was set up and experimental research was conducted to investigate the effect of the displacement of methane by injecting supercritical CO₂ into coal samples. The experimental results indicated that, the extraction effect of supercritical CO₂ changes the coal’s porosity, and broadens the seepage channel for methane. Thus, the methane could be desorbed effectively from the coal matrix, and flow through more cracks at higher speed.     

城市供水管网脆弱性评价研究进展

脆弱性评价有助于甄别城市供水管网的薄弱环节,确定合理的风险削减措施,保证供水安全。阐述脆弱性的有关定义及其与风险的联系与区别,回顾城市供水管网脆弱性评价的发展历程,介绍几种脆弱性评价方法的基本原理、优缺点及适用范围,并按不同评价思路对国内外使用的主要脆弱性评价方法进行分类总结。研究发现,目前尚未形成统一的脆弱性概念及切实可行的评价方法,今后应不断完善和整合各类方法,以定量和通用为核心,使城市供水管网脆弱性评价方法更为实用、有效。     

电磁辐射防护服装研究进展探讨

为了防护人体免遭电磁辐射的危害,电磁辐射防护服装的应用及相关研究受到广泛关注。本文从电磁辐射防护的背景入手,阐述了电磁辐射防护服的防护原理研究进展,介绍了电磁辐射防护服装的应用以及屏蔽效能测试与评价的研究现状,并对电磁辐射防护服装今后研究提出了相应的建议与展望。     

矿用防爆柴油机标准分析与研究

无轨辅助运输技术是当今世界上最先进的煤矿辅助运输技术,矿用柴油发动机作为无轨辅助运输设备的主要心脏部件之一,其许多参数都和煤矿安全密切相关。本文阐述了矿用防爆柴油机要求和特点、采用的技术措施、标准现状,同时对目前矿用防爆柴油机的标准进行了结构分析,提出了防爆柴油机标准要增加的内容。     

用修正RRL法计算城区径流雨水流量

随着我国城市化的发展,城市水文问题日益突出。城市排水、防洪和水污染等问题的解决,都有赖于城市降雨径流理论的发展和计算模型的改进。介绍了日本土木研究所创立的修正RRL法,并对该模型提出了改进的建议。     

监督性监测的实施与保障分析

阐述了监督性监测的目的和作用及存在的主要问题,提出实施监督性监测工作必须具备实质要件和程序要件二大保障条件,对今后环保工作中如何发挥监督性监测的作用提出了建议。     

炭黑尾气用于精煤干燥新技术的探讨与应用

论述了炭黑尾气的组成、成分分析,国内外利用技术发展状况,利用技术工艺,以及根据工程实例,提出了炭黑尾气用于精煤干燥机燃烧炉燃料的利用新技术,给我国炭黑生产企业尾气利用提供了有益的借鉴,也丰富了我国炭黑尾气的利用技术范畴。     

On the operator action analysis to reduce operational risk in research reactors

Human errors during operation and the resulting increase in operational risk are major concerns for nuclear reactors, just as they are for all industries. Additionally, human reliability analysis together with probabilistic risk analysis is a key element in reducing operational risk. The purpose of this paper is to analyze human reliability using appropriate methods for the probabilistic representation and calculation of human error to be used alongside probabilistic risk analysis in order to reduce the operational risk of the reactor operation. We present a technique for human error rate prediction and standardized plant analysis risk. Human reliability methods have been utilized to quantify different categories of human errors, which have been applied extensively to nuclear power plants. The Tehran research reactor is selected here as a case study, and after consultation with reactor operators and engineers human errors have been identified and adequate performance shaping factors assigned in order to calculate accurate probabilities of human failure.     

A review of the past,present and future of the European loss prevention and safety promotion in the process industries

In 2013, the European Federation of Chemical Engineering (EFCE) celebrates its 60th anniversary. EFCE has continually promoted scientific collaboration and supported the work of engineers and scientists in thirty European countries. As for its mission statement, EFCE helps European Society to meet its needs through highlighting the role of Chemical Engineering in delivering sustainable processes and products. Within this organizational framework the Loss Prevention Symposium series, organized throughout Europe on behalf of the Loss Prevention Working Party of the EFCE, represents a fruitful tradition covering a time span of forty years. The tri-annual symposium gathers experts and scientists to seek technical improvements and scientific support for a growingly safer industry and quality of life. Following the loss prevention history in this paper, a time perspective on loss prevention and its future is presented.     

能源资源流动的研究视角、主要内容及其研究展望

通过对能源资源流动研究成果的梳理和总结,从各相关学科不同研究视角出发阐述了能源资源流动研究的内容、着重点及其特色,指出经济地理学、交通地理学、物流学、产业经济学和产业生态学是能源流研究最为密切的学科。从能源流动特征、流动机制、流动效应以及流动的优化调控等4 个方面阐述了能源流研究的主要内容,并籍此认为各学科对于能源流研究的开展丰富和发展了资源流动的研究内容和方法。在对能源流动形式研究的探讨中,指出能源流动形式研究与资源流动的纵横向解析模式具有一致性,其纵横向研究各自独立展开,形成了两种截然不同的研究风格,但目前的相关研究缺乏将纵横向分析有效衔接的联系机制。最后,根据能源资源流动研究现状提出今后该领域相关研究建议。