pressure cooling

The experimental device on the performance of vortex tube is designed, and its cooling performance affected by inlet pressure p0 and cooling air ratio μ is investigated.

针对进气压力p0、冷气流率μ对其冷却性能的影响进行了试验研究。

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The experiments proved that external cooling effect is better than internal cooling, when cooling gas pressure is less than 1 MPa.

实验表明，在冷气压力不大于1MPa实验条件下，外冷却的效果优于内冷却。

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A group of experiments show that the increasing of hot end length will increase cooling down time, cold tip temperature and hot end temperature evidently, but pressure ratio will decreases.

通过一组实验研究了脉冲管热端长度对性能的影响，包括脉冲管热端温度、冷端温度、降温时间、压比。

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It has the functions of the alarm based on low liquor pressure of brake system, the high temperature alarm based on cooling liquid of cooling system, the alarm based on low oil pressure of lubrication system.

其具有制动系统低液压报警、冷却系统冷却液高温报警、润滑系统低油压报警功能。

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Results show that the injection from the converging slot holes has effect only on the pressure coefficient distribution near the film cooling holes.

计算结果表明：冷气喷射仅对孔附近区域的压力系数产生影响；

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When cooling gas pressure exceeds 1 MPa, internal cooling effect is a little bit better than external cooling.

当冷气压力达到1MPa时，内冷却效果略优于外冷却。

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Study on pressure pre-cooling and cold chain technique of lettuce

结球生菜差压预冷及冷链技术的研究

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Experimental studies of differential pressure cooling with different outside holes

外部遮挡不同开孔方式差压预冷实验研究

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High pressure gas refrigerants in the condenser cooling medium heat to be setting for liquid, through the throttle device reduced pressure cooling into the evaporator;

高压气态制冷剂在冷凝器中向冷却介质放热被凝结为液态后，经节流装置减压降温进入蒸发器；

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Installation and Air Pressure Test of Direct Air-cooling System in Yungang Power Plant

云冈热电直接空冷系统安装与风压试验

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Experimental study on Pressure Pre-cooling and Cold Storing of Green Asparagus

绿芦笋压差预冷和冷藏试验研究

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