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. 2 Experimental Heat balance of a 50 t aluminum holding furnace operating on reference operation condition (ROC) was investigated experimentally. Here, a brief introduction of the experimental study was given. The furnace body was treated as the objective during heat balance test. Throughout the whole operation period, i.e., from aluminum feeding to product pouring, parameters including temperature......
宝钢高炉热风炉平衡计算与分析关志刚1,金永龙1,李军2(1.辽宁省鞍山市辽宁科技大学材料科学与工程学院2.宝山钢铁股份有限公司 宝钢分公司,上海 200941)摘 要:在热平衡计算的基础上,对宝钢一,四高炉热风炉进行了平衡分析.结果表明,宝钢一,四高炉热风炉效率远低于热效率,且一高炉热风炉全系统效率比四高炉热风炉低6.54%.两座高炉热风炉损失主要为燃烧过程不可逆损失,烟气带出的物理损失,热交换不可逆损失和化学不完全燃烧损失.宝钢热风炉节能的主要途径是:采用合理的空气过剩系数或富氧燃烧,降低烟气温度,提高冷风入......
J. Cent. South Univ. (2012) 19: 1610-1614 DOI: 10.1007/s11771-012-1183-2 Heat transfer analysis and experimental verification of cast heat exchanger YU Jie(俞洁), DONG Lei(董蕾), ZHANG Huan(张欢), YOU Shi... the viewpoints of environmental conservation and energy efficiency, seawater-source heat pump system (SWHP) to provide district cooling and heating is applied in coastal areas. Based on the system, a heat......
was calculated by means of heat balance method, Beck’s non-linear estimation method and optimization-based finite element simulation. The results show an average error of 3.7% for Beck’s non-linear estimation method, 7.5% for heat balance method, and 10.3% for finite element simulation. The positive effect of martensitic transformation on interfacial heat transfer coefficient is obtained......
Modeling approaches to pressure balance dynamic system in shield tunnelingLI Shou-ju(李守巨)1, YU Shen(于申)1, QU Fu-zheng(屈福政)2(1. State Key Laboratory of Structural Analysis for Industrial Equipment... of a pressure balance system with time-delay, nonlinear, time-varying and uncertain characteristics, an intelligent modeling procedure is proposed, which is based on artificial neural network (ANN) and input......
and lhp represents the length of heat pipe. CHI [12] proposed the pressure balance equation in the heat pipe: Δpcap≥?pv+?pl±?pg ...J. Cent. South Univ. Technol. (2011) 18: 580-586 DOI: 10.1007/s11771-011-0734-2 Effects of bending on heat transfer performance of axial micro-grooved heat pipe JIANG Le-lun(蒋乐伦), TANG Yong(汤勇......
Determination method of load balance ranges for train operation safety under strong windTIAN Hong-qi(田红旗) (Key Laboratory of Traffic Safety on Track of Ministry of Education(School of Traffic... to the principle of static moment balance of vehicles, the overturning coefficients of trains with different wind speeds and wall heights were obtained. Based on the influence of wind speed and wall......
at the condensation end is 38.6 °C. When the input heat power rises to 5 W, the temperature rising speed is increased, and the time to reach the balance is about 48 min. The highest temperature... sink is tested under the input power of 3 W and 5 W respectively. Under the input power of 3 W, the balance temperature of the metal solid heat sink is up to 68.2 °C, as shown in Figure 12(a). When......
; heat balance 1 Introduction The use of lightweight materials is effective in conserving energy and reducing emission. Aluminium alloy is an ideal material for automobile lightweight components due... of the extrudate along the extrusion direction obtained by adopting isothermal extrusion is about 6.9 °C. Furthermore, the heat generated by plastic deformation and friction during extrusion......
shows that the coefficient of performance of the system reaches 3.63 in summer and 3.49 in winter, respectively. The heat balance in underground rock mass is acquired basically throughout the year... and extract the heat from the source in winter for supply heat for end user. If the heat balance of discharging and extracting could not be achieved throughout the year, the temperature of ground......
