Energy conservation and emissions reduction strategies in foundry industry

Current energy conservation and emissions reduction strategies in iron and steel industry were reviewed. Since foundry industry is one of the major source of energy consumption and pollution emission (especially CO 2 ), issues concerning energy-saving and emission-reduction have been raised by governments and the industry. Specialists from around the world carried out multidimensional analyses and evaluation on the potentials in energy conservation and emissions reduction in iron and steel industry, and proposed various kinds of analyzing models. The primary measures mainly focus on the targeted policies formulation and also on clean and highefficient technologies development. The differences and similarities in energy conservation and emission reduction in foundry industry between China and other countries were discussed, while, the future development trend was also pointed out.

Life Cycle Assessment-based method of Excessive Commodity Packaging on Energy Conservation and Emissions Reduction

Based on a Life Cycle Assessment model, the effect of the whole life cycle of excessive commodity packaging on the environment was analyzed by eBalance Evaluation LCA software from production through circulation. The cost evaluation system and environment impact model of its three main processes, that is, material production, product machining and waste manufacturing, were established to identify the main environmental impact corresponding indicators and the influence on energy conservation and emissions reduction of excessive packaging life cycle. And packaging of moon-cakes was taken as an example to analyze the difference between the ordinary packaging and excessive packaging of moon-cakes in terms of life cycle assessment and costs analysis. Meanwhile some measures are put forward to conserve energy and reduce emissions.

Green ICT Impact on Energy Conservation and Emission Reduction

The direct and indirect effect of ICT on energy conservation and emission reduction is described. The energy consumption per unit GDP in the ICT industry is lower than that in other industries. The application of ICT in such fi elds as industrial design, manufacturing, management, logistics, sales and service can be helpful for energy conservation and emission reduction in the industrial and transportations industry; however, the issue of energy waste and environmental pollution caused by voluminous deployment of ICT products should never be overlooked. This paper presents the lat- est development of communications products in energy conservation and exemplifi es the roles of ICT in energy conservation and consumption reduction. The issue of electromagnetic radiation of ICT products and the recycling and reuse of e-wastes are explored.

Are energy conservation and emission reduction policy measures effective for industrial structure restructuring and upgrading?

The use of energy conservation emission reduction policies to promote industrial restructuring and upgrading and thus facilitate energy conservation and emission reduction is one of the 10 important strategies of environmental management in China. The use of energy conservation emission reduction policies to promote industrial restructuring and upgrading and thus facilitate energy conservation and emission reduction is one of the important strategies of environmental management in China. Based on the systematic collection of 1,195 energy conservation emission reduction policies, we discuss the influence of individual measure and measure synergy of energy conservation and emission reduction policies respectively. The results show that the energy conservation and emission reduction policies have a significant effect on the overall promotion of industrial upgrading. The financial measures and guidance measures have a positive impact;the financial measures and guidance measures have significantly positive effect; however, the administrative measures, fiscal tax measures, and other economic measures do the opposite; the positive effect of the synergy of guidance measures and financial measures is greater than the negative effect of considering only the synergy of fiscal tax measures and other economic measures, and significantly greater than the negative effect of the synergy of administrative measures, fiscal tax measures, and other economic measures. We should strengthen and emphasize the use of the measure that has positive effect on industrial structure restructuring and upgrading individually and synergistically.

Time Intervals of the Energy Emission in Quantum Systems Obtained from the Conservation Rule of the Electron Momentum

The paper presents a non-probabilistic approach to the time interval associated with the energy emission produced by the electron transition in a quantum system. The calculations were performed for the hydrogen atom and the electron particle in a one-dimensional potential box. In both cases, the rule of conservation of the electron momentum has been applied. The results, limited to the time intervals of transitions between two neighbouring quantum energy levels, occur to be much similar to those obtained earlier with the aid of the Joule-Lenz energy emission theory.

2024年美国绿色化学挑战奖项目创新研究进展

对美国环保署(EPA)公布的2024年度美国绿色化学挑战奖(GCCA)获奖成果的创新与价值进行了分析与阐述。Merck&Co.Inc.公司被授予绿色合成路线奖(Greener Synthetic Pathways Award),其创新价值在于发明了一种新的“连续工艺”生产其PD-1疗法KEYTRUDA■(pembrolizumab)用药物。Pro-Farm Group被授予安全与可降解化学品设计奖,开发了一种具有天然杀虫作用的微生物农药RinoTec^(TM)。Viridis化学公司被授予小企业奖,开发了一种利用可再生原料催化合成乙酸乙酯的工艺流程。特拉华大学Dionisios G.Vlachos教授被授予学术奖(Academic Award),开发了利用可再生原料生产润滑油主要化学成分的新合成方法。PhoSul■研究团队被授予环境特别奖,开发了PhoSul®增强型磷矿肥料。

“双碳”目标下绿色财政政策的碳生产率效应研究

在“双碳”目标下,提高城市碳生产率是政府制定绿色财政政策推动城市低碳发展的重要考量。以两部委开展的节能减排财政政策试点为准实验,使用多期双重差分(DID)模型和塔皮奥(Tapio)脱钩指数模型,考察绿色财政政策对城市低碳发展的影响。研究显示,绿色财政政策的实施有效提升了城市碳生产率,并推动了城市低碳发展。具体而言,实施该绿色财政政策能够通过优化城市产业结构和生产要素配置、改善城市创新环境、提高城市科技创新能力等提升城市碳生产率。同时,在非资源型、非工业型、环境信息公开和地方政府环保意识强的城市中,政策效应更显著。拓展研究发现,除铁岭市和铜川市外,其他试点城市在政策实施期间经济增长速率均高于碳排放增长速率,表现出明显的碳生产率提升趋势。绿色财政政策在推动城市减碳、促增长、提升碳生产率方面发挥着重要作用,城市低碳发展应以绿色财政为抓手制定因应之策,以实现经济发展和减污降碳双重目标。

上海市某商业广场项目高效制冷系统改造工程实践

以上海市某商业广场项目高效制冷系统改造工程为例,介绍了该工程概况及高效制冷系统改造工程的全过程服务,从空调制冷系统现场勘测及检测评估、集成磁悬浮副冷站高效机房设计、主冷站高效制冷系统设计、高效制冷系统实施重难点解决方案、高效制冷系统的改造实效5个方面进行了详细说明。提出了既有大型商业高效制冷系统运行痛点和解决措施,系统性地归纳、总结了适用于改造工程的高效制冷系统的技术路径与实施建议。

基于CRITIC-云模型的石化行业节能减排技术评价

为了解决石化行业节能减排技术评估体系构建尚不完善的问题,聚焦石化行业节能减排技术,从技术性能、经济效益和环境保护3方面构建评价指标体系,通过CRITIC(criteria importance though intercrieria correlation)-云模型进行评价。结果表明:石化行业75%的节能减排技术综合评分在0.6以上,其中变频器调速节能技术、蒸汽系统运行优化与节能技术、大型高参数板壳式换热技术是标杆技术;石化行业节能减排技术在成熟度、适用性、减排成本以及减排潜力上的表现存在显著差异,其中多能互补型直流微电网及抽油机节能群控系统技术与多孔表面高通量管高效换热技术在经济效益和环境效益方面亟待改进;云模型评价显示,石化行业节能减排技术整体处于“可接受级”水平,并逐步向“可宣称级”水平迈进。研究结果从技术评价视角为石化行业锚定发展节能减排技术提供了评价依据,有助于助推“双碳”目标的达成。

夏热冬暖地区高铁站房运营碳排放敏感性分析

该文依据我国公共建筑碳排放量研究现状,以夏热冬暖地区高铁站站房为研究对象,利用建筑碳排放计算软件对夏热冬暖地区高铁站站房进行运营期碳排放计量与分析,通过敏感性分析法分析夏热冬暖地区高铁站站房运营碳排放的主要影响因素,研究分析夏热冬暖地区高铁站站房建筑可实施的节能减碳措施。本文在分析节能减碳措施时重点把握夏热冬暖地区高铁站站房碳排放主要影响因素,为夏热冬暖地区高铁站站房节能减碳提供依据。

反射性隔热膜在PVC地板上的应用开发

主要阐述了采用在PVC地板板材表面贴合一层隔热层的实验思路,实现降低板材整体在高强度光照下整体温度的效果,以解决PVC地板无法在高强度光照环境下长时间使用的问题。相关实验已经证明,PVC地板拥有抗菌防霉,耐磨耐压,无甲醛环保等优势,以及安装便捷,使用年限长,脚感舒适,皮肤亲和性好等人为体感上的优势。但因其无法耐受长时间高强度光照,有较大的使用局限性,本次实验目的为延长地板在长时间日照条件下的老化时间和使用年限,并从降低光的漫反射以及减少光污染层面达到节能减排的功效,制备出环境友好,使用局限性小的新型PVC地板。

预制装配式建筑在节能减排中的应用及效益分析

在全球对节能减排的呼声不断高涨的背景下,装配式建筑作为一种新型的绿色建造方式,在建筑业得到了越来越广泛地关注。采用工厂化生产、现场快速拼装的装配式建筑,既可大幅提升施工效率和品质,又可有效降低工地能源消耗与废弃物排放。文章对装配式建筑在节能减排中的作用和所产生的效益进行了分析。本文首先对装配式建筑的基本概念、技术特征进行了综述;其次是研究装配式建筑在节能、减排和减少建筑废弃物等领域的具体应用。文章同时对装配式建筑的整体效益作了全面的评估。

煤矿智能化管理助力电力工业节能减排

通过分析煤矿智能化管理的优势及其在电力工业中的应用现状,论证了智能化管理在促进电力工业节能减排中发挥的作用。以青云煤矿为例,详细分析了其智能化管理措施及成效。研究表明,青云煤矿通过实施智能化管理,提高了煤炭开采和利用效率,降低了煤炭消耗和污染物排放,提高了电力生产效率和可靠性。

瓦斯气锅炉热效率提升技术研究

页岩炼油厂利用页岩油热解瓦斯气作锅炉燃料,但锅炉热效率低导致蒸汽量不足。为提升效率,文章提出了优化方案:首先,调整过量空气系数至1.11,降低排烟焓,提高热效率并带来经济效益;其次,针对烟气酸露点,优化锅炉结构,提高换热器耐蚀性,并对瓦斯气深度脱硫,以降低烟气温度,提升热效率并减轻腐蚀;再次,研究发现给水温度100℃时热效率最高;最后,提出在锅炉烟道增设冷凝装置回收潜热,但需注意酸腐蚀问题,需根据实际情况实施。这些措施综合应用,可有效提升页岩炼油厂燃气锅炉的热效率,满足供暖及其他蒸汽需求。

某油田降低外输含水海管流动性保障可行性研究

H平台外输P海管长25.88 km,输送A、B两个油田的产液,属于典型的油油、油水混输海管。投产初期,由于原油温度较低,且凝固点较高,需加注降凝剂进行纯油外输。后期,随着油田的不断开发,含水逐渐上升,需启用3台外输泵进行输送,且海管防腐剂及防垢剂注入量相应增加。通过对生产分离器工艺处理能力的核算,以苏霍夫公式为依据,对不同工况下海管的流动性保障进行理论分析,并通过实践论证,逐步将外输含水降低至5%左右。其不仅有效降低了平台能耗及下游设施生产系统负荷,而且降低了化学药剂注入,达到了节能减排、绿色低碳、降本增效的目的,有效保障了海管的安全运行,提升了海管完整性,同时也为低含水工况下外输海管流动性保障提供了理论及实践依据。

The Impact of Global Value Chain Embedment on Energy Conservation and Emissions Reduction:Theory and Empirical Evidence

An in-depth investigation into the effect of embedment in global value chain(GVC)on energy conservation and emissions reduction is of great significance for scientifically assessing the environmental impact of GVC participation,and promoting high-quality development in China.This paper incorporates GVC embedment,energy consumption and carbon emissions into the same analysis framework for the first time.Based on the WIOD database,this paper theoretically and empirically examines the impact and mechanism of global value chain embeddedness on carbon emission reduction from two dimensions:energy consumption intensity and energy consumption structure.The study found that GVC embedment significantly reduced the industry’s carbon emission intensity;developing economies’embedment in GVC helped reduce their carbon emission intensity,while the effect was not obvious in developed economies.GVC embedment had a significant inhibitory effect on the carbon emissions in both upstream and downstream industries,but not conducive to carbon reduction of lowtech manufacturing.The mechanism test shows that the GVC embedment not only exhibits the dual effects of energy conservation and emissions reduction,but also has a significant impact on carbon emissions by reducing the energy consumption intensity and improving the energy consumption structure.

“双碳”背景下园林景观设计的理念研究

随着全球气候变化的加剧和人们环境保护意识的提高,“双碳”目标成为当今社会的重要议题。园林景观设计作为城市绿化的重要组成部分,是实现碳达峰和碳中和的重要一步。本研究详细阐述了“双碳”背景下园林景观的设计理念,主要包括低碳设计理念、生态修复理念、可持续发展理念。分析发现,当前园林景观设计中违背“双碳”原则的典型误区主要包括过度绿化、大量应用非乡土植物、园林景观设计材料选择不合理、粗放式用水和可再生能源利用较少。研究提出的适度绿化、栽植乡土植物、合理选用景观材料、应用节水灌溉设备及加强水资源管理、应用可再生能源是解决典型误区的主要技术手段,可为新时代背景下的园林景观设计工作提供理论参考。

国产新型“大面积”氯碱电解槽的应用与实施效果分析

介绍了国产新型3.3m^(2)“大面积”电解槽在氯碱装置中的应用实例。与原电解槽相比,新电解槽的单元槽电压降低112mV,吨碱直流电耗下降78.07kW·h。改造后,氯碱产品综合能耗降低,为装置扩能改造提供了条件,推动了行业内国产核心设备的技术进步。

外墙节能技术在学校施工项目中的应用分析

研究以实训楼为背景,探讨了建筑外墙施工及外墙节能设计要点。在建筑物外墙施工中,为了保证建筑物坚固耐用,必须对材料的选用、施工工艺及质量进行严格控制。从外墙构造、外墙主断面传热修正系数、外墙平均热工作性等方面出发,对建筑外墙节能进行设计,以提高建筑外墙的隔热保温性能。

橡塑工业企业节能减排的现状与未来发展

橡塑工业作为现代制造业的重要组成部分,其生产过程中涉及大量的能源消耗和污染排放。随着环境保护意识的增强和全球气候变化的加剧,节能减排已经成为橡塑工业企业亟需解决的重要问题。本文将以企业节能减排为出发点,深入探讨橡塑工业在节能减排方面的现状、先进技术、管理经验、面临的挑战以及未来的发展趋势,为行业发展提供有力的参考和导向。