The paper introduced testing principle of infrared image in course of metallurgy heat engineering testing , based on several applied examples , analyzed application properties and range of infrared image technique and thermal image analysis in heat engineering analysis 联合站油水系统运行过程中,普遍采用调节流量的变工况运行方式.本文从实际应用出发,简要阐述了离心泵变频调速节能的基本原理,给出了现场应用实例.结果表明,变频控制系统运行状况良好,节能效果明显
In the end , it analyzes the economy of the cooling system , pointing to variable operation conditions in which the ship runs , because the span of the shipping navigation area is great . this supplies the demonstration and convenience for engineer manager in the operation and management of cooling system 最后针对于船舶航行的航区跨度大等特点，对冷却系统变工况运行的经济性进行了研究，从而为轮机管理人员在冷却系统的运行管理过程中提供了一些依据和便利。
The characteristics of this new cycle at different working conditions were calculated and analyzed carefully based on mass , heat , and phase equilibrium . besides , the characteristics of a traditional single - effect absorption refrigeration cycle under the same condition are also calculated for comparison 在理论上，本文依据新循环内部的热平衡、质量平衡及相平衡，对循环进行了热力分析，研究了变工况下循环的各种性能的变化情况，并深入分析了变化原因，结果发现，冷凝蒸发器中两股流体的热容量是否匹配是决定cop值的关键因素。
To reach this target , the work should employ not only the information technique , but also the thermodynamics theory . same thing applies to condenser and evaporator which affect directly the behavior of the refrigerant system as the main heat exchange equipments in the refrigerant system 为了实现这一目标，需要利用现代仿真技术和系统热动力学，从系统的变工况性能出发，分析系统的过渡特性。对于汽车空调的主要换热设备：冷凝器和蒸发器，这一问题尤为紧迫和突出，因为他们的工作状态直接影响着整个制冷系统的各项性能。
The operational characteristics with the different operational parameters , with different terminal cooling load of air conditioning system , with different heat exchange characteristics between underground u - tube pipe loop and soil , etc . have been studied . the operational characteristics of gshps within starting period , normal period and the period of variable operation patterns under different seasonal conditions has also been studied 研究热泵机组运行参数变化、空调末端负荷变化和地下埋管换热器变化时土壤源热泵系统的运行特性;开展不同季节和不同工况土壤源热泵的启动、正常和变工况运行特性的研究。
Abstract : in order to protect environment , it is very important to explore anew refrigeration method . for its unique characteristic , thermoelectric refrigeration is applied in some conditions . numerical simulation has been developed for the air - cooled thermoelectric air - conditioner by experimental simulation on heat - insulating materials with different thickness , structure - shapes , work - conditions and air - flow capacities . the model and the method have been verified . the effects of the figure of merit of thermoelectric material and the heat transfer coefficient of cool / heat side on the performance of the air - conditioner are analyzed by the model 文摘:建立了风冷热电空调器数值模拟模型，对空调器进行了模拟计算.在对风冷热电空调器研制的基础上，进行了最佳隔热层厚度、不同结构形式、变工况、变风量和复现性实验，验证了仿真程序的可靠性，并应用模拟程序对热电材料的优值系数和空调器冷、热端的传热系数进行了分析
In order to obtain an optimal thermal process of a steam turbine and its thermal system , especially , to ensure the initial and boundary condition parameters to calculate thermal stress in the components or to assess the safety of the steam turbine , it is necessary to carry out a concise and reliable thermal calculation as a function of it position coordination 汽轮机及其热力系统在变工况条件下，通流部分各级的性能参数及汽轮机热力系统的各参数都要发生相应的变化，要确定变工况下汽轮机及其热力系统的各经济性参数及进行强度和安全性方面的分析，需对其进行详细地、客观地热力核算。
Deduces a mathematical model reflecting the relationship between the coefficient of performance ( cop ) of water - source heat pump units and the water temperatures on evaporator side and condenser side through analysing the influence of the water temperatures of the two sides on the cop under constant temperature difference and variant working conditions 摘要通过对水源热泵机组定温差、变工况运行时蒸发器侧和冷凝器侧水温对机组性能影响的分析，得到了机组性能随两侧水温变化的数学模型。
The dynamic mathematical model of the heat circuit has been developed by means of lumped - parameters according to the thermodynamics theory of the refrigeration system and translated into the cyber - simulation model with matlab , the simulation software . the simulative and experimental research has been carried out for the unsteady process during the start - up operation and the alterative work - status operation , which showed that the system performance were worse during the unsteady process , the outlet pressure of the heat - source exchanger was rather low during the beginning of the unsteady process , the heat circuit had a good flexibility to the working conditions 对热环系统开机动态和变工况动态过程进行了计算机动态仿真研究和动态实验研究，结果表明热环系统在开机和变工况的动态过程中，其运行性能都较低；在动态过程开始的一小段时间内，热环系统热源换热器出口压力骤降到较低值；工况的变化对热环系统的运行性能影响较小，说明热环系统对实际应用条件有较强的适应性。
The experimental data were compared with the simulation " s results . the comparative analysis indicates the satisfactory agreement between the results of the simulation and the experiment , which were about the transient and steady characters of the heat circuit system . it showed that the simulative model was able to reflect the dynamic characters of the heat circuit , which has set up a good foundation of the dynamic simulation , the optimization and control , the professor - system of heat circuit in the future 对仿真结果和实验结果进行了对比分析，结果表明不管是对系统的开机动态，还是对变工况动态的模拟仿真，仿真结果都与实验结果较为一致，说明本文建立的系统动态模型能够较好地描述系统的运行特性，可以用于对热环系统的动态运行特性进行初步的分析，同时为今后进一步的动态仿真研究、优化控制以及建立专家系统打下了良好的基础。
