Search | Engineering

资源类型

期刊论文 2

年份

2010 2

关键词

检索范围：

排序：展示方式：

An indirect evaporative chiller

Xiaoyun XIE, Yi JIANG,

《能源前沿（英文）》 2010年第4卷第1期页码 66-76 doi: 10.1007/s11708-010-0021-1

摘要： A novel indirect evaporative chiller driven by outdoor dry air to produce cold water as the cooling source for air conditioning systems is introduced, and the principle and the structure of the chiller is presented. The cold water can be produced almost reversibly under ideal working conditions, with its temperature infinitely close to the dew point temperature of the inlet air. The key components of the chiller are an air cooler and a padding tower. To improve the heat transfer performance inside the chiller, a quasi-countercurrent air cooler was designed; a subsection linear method was used for the mathematical model of the padding tower. The first indirect evaporative chiller, designed and developed in 2005, has been in use in Kairui Building, a big hotel in Shihezi, Xinjiang Autonomous Region. The tested temperature of the water produced is below the wet bulb temperature of outdoor air and reached the average value of the dew point temperature and the wet bulb temperature of outdoor air. As the running components are only pumps and fans, the COP (cooling energy for room divided by power cost) of this chiller is high, and the drier the outdoor air, the higher COP the chiller obtained. Since no CFCs are used in this chiller, it would not cause any pollution to the aerosphere. Finally, the application prospect of the indirect evaporative chiller in the world is presented.

关键词： indirect evaporative chiller dry air dew point temperature

HTML PDF 收藏

LC-ELSD analysis for simultaneous determination of five components in the Xue-Fu-Zhu-Yu capsules

Ying GAO, Wenyuan GAO, Xuan DONG, Fengge LI, Xinying YANG,

《化学科学与工程前沿（英文）》 2010年第4卷第1期页码 96-101 doi: 10.1007/s11705-009-0309-z

摘要： A reliable and accurate liquid chromatography with evaporative light scattering detection (LC-ELSD) method was developed for simultaneous determination of five constituents in Xue-Fu-Zhu-Yu capsule, a widely used prescription of traditional Chinese medicine (TCM). The chromatographic separation was performed on a Symmetry C column (150mm×4.6mm, 5.0μm) using gradient elution of acetonitrile and water (containing 1.0% acetic acid). The flow rate was 0.6mL/min and the temperature of column was 30°C. A good linearity correlation was obtained over the investigated concentration ranges. Recoveries of the five components varied from 97.31% to 99.84% (RSD<4.0%). The validated method was successfully applied to the quality assessment of Xue-Fu-Zhu-Yu capsule.

关键词： chromatographic separation prescription Symmetry chromatography evaporative