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节能降耗环境下增加了电网企业的的购电成本,使其经营风险增大。文章将研究节能降耗环境下电网企业经营风险。通过数学建模的方式,分析影响电网企业购电成本增大的因素,还通过算例分析的方式分析了不同因素对电网企业的影响程度。为了电网企业能够控制其经营风险,提出了两种方法,分别为优化电网企业购电类型分配机制和建立发售电价格联动机制。 相似文献
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笔者从多地用电企业处了解到,尽管大用户直购电的构想十分完美,但实际中许多试点被地方政府当做了地方扶持企业的一种手段,批给了当地重点扶持的企业,其中不乏高耗能高污染的行业。 相似文献
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谷电价格低于峰电价格,通过加强生产调度,多用谷电,可降低生产用电成本,为确保谷电期用电的安全性与可行性,本文提出了工业设计中的注意事项;本文还简述了使用谷电的重要性和社会效益。 相似文献
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介绍了直纺生产电气设备抗晃电的几种方法,指出DC-BANK不间断电源系统是解决电动机不间断供电的一种新的解决方案。分析了DC-BANK系统的技术条件及在直纺生产的实际使用情况。 相似文献
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原油电脱盐在炼油企业中占据着较为重要的地位,为满足深度脱盐的要求,本文针对本装置的实际问题阐述了操作优化问题,并提出了具体的设备改造建议。 相似文献
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简述了以热功电联产汽轮机驱动造气风机取代电动机拖动风机的技改方案;论述了背压式汽轮机的工作原理、蒸汽工艺流程、入炉蒸汽控制要求、汽轮机的联锁监控及运行维护;分析了机组运行状况及经济效益.结果表明,热功电联产汽轮机混拖造气风机投入运行后,机组运行稳定,节电效果明显,可节省电费约4万元/月.技改投资31万元,投资回收期7.... 相似文献
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炼化企业供应链协同优化对实现智能炼厂至关重要,计划优化系统是供应链协同优化实现的核心系统。本文详细介绍了规划总院自主研发的新一代计划优化软件整体框架及主要功能,在该平台基础上结合炼化一体化企业流程数据、原油数据库及产品销售等边界条件进行了炼化一体化模型设计及建设,用于开展各类优化分析,并基于线性规划原理,通过边际效益分析及多方案对比分析,结合原油保本价法、缩减成本法及等量替代法等不同的原油选购方法,开展了原油选购测算及应用分析,并对炼化一体化企业加工原油提出了相关建议,指导企业原油选购。 相似文献
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轮胎企业的用电消耗按费用计算大约占了60%以上的成本比重,解决或降低电力消耗中的线路损耗、变压器损耗、无功损耗、电源品质损耗、电机低效损耗、照明低效损耗,合理利用太阳能等,可以为企业带来可观的节电、减人、提质效益。 相似文献
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Luwen Yu Stephen Westland Zhenhong Li Qianqian Pan Meong Jin Shin Seahwa Won 《Color research and application》2018,43(2):258-267
The purpose of this study is to test whether consumers' personal colour preferences (in an abstract sense rather than for a particular product) affect their intended product purchase decisions if they are given various colour choices. This work employs two experiments with visual components to investigate which colour a participant would choose if asked to select a product to purchase when there is a range of colours available. Two experiments were also designed to elicit a response about which colour each participant prefers (in an abstract sense). The study finds that personal colour preferences affect intended product‐colour purchase decisions but that the extent of this varies from one product category to the next. Further analysis reveals that personal colour preferences are secondary to factors such as colour functionality and colour performance. This work presents new experimental data about the role of colour in product and product packaging on intended consumer purchase decisions. A conceptual framework, supported by the experimental findings, are understanding the relationship between individual colour preferences and product‐choice colours, and more functional aspects of colour itself (such as the effect of colour on product's performance or functionality). 相似文献
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Energy-intensive industries can take advantage of process flexibility to reduce operating costs by optimal scheduling of production tasks. In this study, we develop an MILP formulation to extend a continuous-time model with energy-awareness to optimize the daily production schedules and the electricity purchase including the load commitment problem. The sources of electricity that are considered are purchase on volatile markets, time-of-use and base load contracts, as well as onsite generation. The possibility to sell electricity back to the grid is also included. The model is applied to the melt shop section of a stainless steel plant. Due to the large-scale nature of the combinatorial problem, we propose a bi-level heuristic algorithm to tackle instances of industrial size. Case studies show that the potential impact of high prices in the day-ahead markets of electricity can be mitigated by jointly optimizing the production schedule and the associated net electricity consumption cost. 相似文献
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郭天罡 《煤炭加工与综合利用》2006,(4):10-11
西山煤电集团前山矿区为了提高下组高硫贫瘦煤开采比例,在各矿建设不同洗选工艺的选煤厂生产电精煤,这样可以调整产品结构、减少无效运输、保护环境、实现矿井可持续发展,同时提高供需双方的经济效益;某电厂的生产实践表明,燃烧电精煤发电,可少用煤、多发电,并可节约用电,节约助燃油,减少设备磨损,减轻环境污染。 相似文献