The company bears advanced production equipment , strong technical force and the complete examination method , the produced metal surface heat insulation sandwich compound machine and the supplementary equipment have complete function and the outstanding performance , which has reached the international advanced level 公司生产设备先进、技术力量雄厚、检测手段齐全,所生产的金属面隔热夹芯板复合机及配套设备功能齐全、性能优异,已达国际先进水平。
The polystyrene froth board other name forth board , the eps board are by includes the volatile liquid foaming agent to be possible the sending polystyrene , after heats up sends the white which heats up in the mold takes shape enable it in advance to have the tiny structure especially , mainly to use in to construct the wall , the house surface heat preservation , the compound board heat preservation , the cold storage , air conditioning , the vehicles , the ships heat preservation heat insulation , the floor heats , use and so on decoration carving is extremely widespread 聚苯乙烯泡沫版? ?又名泡沫版、 eps板是由含有挥发性液体发泡剂的可发性聚苯乙烯珠粒,经加热预发后在模具中加热成型的白色物体,其有微细闭孔的结构特点,主要用于建筑墙体,屋面保湿,复合板保温,冷库、空调、车辆、船舶的保温隔热,地板采暖,装潢雕刻等用途非常广泛。
The thermal storage and heat transfer of pcm wallboards were studied , the ‘ decrement factor ’ and ‘ time lag , which are used to evaluate the material with constant thermo physical properties , can ’ t be used to evaluate the pcm wallboards , because the melting or freezing of pcm can charge or discharge high latent heat during a narrow temperature range , which causes different temperature distribution in the walls and different surface heat flow into the indoor environment 探讨了墙体相变建筑构件的蓄热、传热特性。与常物性建筑构件对室外温度波动衰减(用衰减系数表示)和延迟(用延迟时间表示)的特性不同,相变建筑构件在较窄的范围内有大量潜热的吸收或释放,从而显著的影响其温度分布和表面向室内的传热速率。
Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field . a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle . aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing 该方法利用表面热辐射方向性和显热通量都是源于土壤和植被温度的贡献这一共同点,发现在一定倾斜角度的观测下,视场中植被与土壤的比例可以较好地反映植被和土壤与大气进行湍流热交换的贡献率,所以称该方法为最佳组分面积比法,用最佳组分面积比可以将任意角度下观测到的辐射温度订正为空气动力学温度,经过地面和遥感数据验证表明,用该方法计算的通量精度高于普通的单层模型。
A new method is developed to predict the temperature distribution of cooling - plate with non - uniform heat load on the surfaces , meanwhile , two types of cooling - plate used in the environment control system of airplane are studied experimentally under conditions of different reynolds number of air and surface heat loads 摘要提出了一种新的冷板简化数学模型,把翅片折合成导热系数?各向异性的等效厚度层实芯板,将冷板与空气的对流换热作?等效层的稳态导热问题,计算了表面热源非均匀条件下冷板的温度分布。