冷凝温度

In the steam-jet heat pump steam and water is the working substance, so condensing temperature is higher than the refrigerant normally using in heat pump. It is suitable for all kinds of species wood drying in different temperature, especially high temperature drying.

本文是将蒸汽喷射式热泵技术应用于木材干燥，可以降低木材干燥的能耗，提高干燥质量和经济效益：蒸汽喷射式热泵以水蒸汽为工质，因此冷凝温度可以较高，适用于各种木材在不同的温度下的干燥以及高温干燥。

In the Steam-jet heat pump steam and water is the working substance, so condensing temperature is higher than the refrigerant normally using in heat pump.

本文是将蒸汽喷射式热泵技术应用于木材干燥，可以降低木材干燥的能耗，提高干燥质量和经济效益；蒸汽喷射式热泵以水蒸汽为工质，因此冷凝温度可以较高，适用于各种木材在不同的温度下的干燥以及高温干燥。

Pyrology; Two-stage condensing heat pump hot water system; Condensing temperature; Compressor power; Compressor discharge temperature; COP

热工学；两级冷凝热泵热水系统；冷凝温度；压缩机功率；压缩机排气温度；能效比

The atomizing set takes advantage of the condensing water and external water, and atomizes them and sprays them to the surface of the condenser and refrigerator to degrade the condensing temperature and pressure, The system changes the single wind-cooling into mixed-cooling and tremendiously degrades the condensing temperature and pressure, decreases the high and low differential pressure of compressor, degrades frequent startup and operation is difficult.

空调雾化器该雾化节能装置是利用冷凝水或经过水处理后的外接水将其雾化，并将水雾喷洒到空调器或冷库冷凝器表面，使空调器或冷库单一的风冷变成风冷和雾化水冷却的混合式冷却，从而大大降低冷凝器的冷凝温度和冷凝压力，减少压缩机的高低压差，降低了压缩机由于高温保护造成跳机频繁或启动困难的现象，不仅增加了压缩机使用寿命，而且对空调器有显著的节能效果——制冷量增加，输入功率减少。

A exergy analysis of an ammonia vapour compression refrigeration cycle in a cold store was presented under a constant state temperature,the physical properties of ammonia was simulated using linear method of fitting both under constant and change condensing temperature. Exergy destruction of the various components of the refrigeration system,exergetic efficiency and coefficient of the system were analysed and calculated. The results indicated that the exergy destruction in the evaporator is highest,followed by the compressor and condenser.

通过对一定环境温度条件下的高温冷库中的氨蒸汽压缩系统进行分析，利用线性拟合的方法对氨的物性进行模拟，并对定冷凝温度和变冷凝温度时，制冷系统的各部件的炯损失和系统的效率进行计算分析，得出在冷库氨蒸汽压缩系统中的蒸发器中的损失最大，压缩机和冷凝器次之的结果。

Accordingly, the improvement of those apparatus and the application of the techniques such as low temperature pit entry fermentation, fixed-temperature distillation, maintenance of adequate condensation temperature, and periodic washing of distillator and condenser etc. could effectively prevent lead content above standards.

改进蒸馏器、冷凝器、导管和贮酒容器等生产设备，采取低温入池发酵、定温蒸馏、保持适宜冷凝温度，定期刷洗蒸馏器、冷却器等方法可有效预防铅含量超标。

The results showed that condensation temperature and condensation pressure increased with increasing inlet air wet-bulb temperature.

对影响板式蒸发式冷凝器热工性能的主要因素——空气的湿球温度、冷凝温度、相对湿度做了实验研究。

Compressor power consumption was greatly affected by inlet air relative humidity and wet-bulb temperature.

结果显示：冷凝温度和冷凝压力均随着入口空气湿球温度的升高而升高；入口空气相对湿度对压缩机功耗的影响与湿球温度对压缩机功耗的影响均比较大；对基于同一压缩系统的实验比较表明，在冷凝温度为38℃时，板式蒸发式冷凝器的热流密度比管式蒸发式冷凝器平均大30.5%；且在相同的冷凝温度下，入口空气湿球温度越低，板式蒸发式冷凝器的热流密度比管式蒸发式冷凝器大得越多。

states the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. analyses the effects of variable condenser water flow on cop of centrifugal chillers. indicates that although the negative effect is not negligible, it is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要：论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

States the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. Analyses the effects of variable condenser water flow on COP of centrifugal chillers. Indicates that although the negative effect is not negligibleit is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要 论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。