大型高速低温风洞冷量回收的方法研究

赖欢 1; 2; 陈振华 2; 高荣 2; 陈万华 2; 刘秀芳 1; 侯予 1

doi:10.7652/xjtuxb201606021

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大型高速低温风洞冷量回收的方法研究

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- 大型高速低温风洞冷量回收的方法研究
- Cold Energy Recycle from Cryogenic Wind Tunnel Exhaust System
- 西安交通大学学报 2016年50卷第6期页码：136-142
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 中国空气动力研究与发展中心设备设计及测试技术研究所,四川,绵阳,621000
- 作者简介：
- 基金信息：
  
  : 2016-01-24。作者简介: 赖欢(1981—),男,硕士生;侯予(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51406160);中国博士后科学基金资助项目(2014M560773);中国科学院低温工程学重点实验室开放课题资助项目(CRYO201409);中央高校基本科研业务费资助项目(2012JDGZ03)
- DOI：10.7652/xjtuxb201606021
  中图分类号： TB69
- 网络首发：2016-06-10，
  
  纸质出版：2016
- 稿件说明：
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赖欢 1, 2, 陈振华 2, 等. 大型高速低温风洞冷量回收的方法研究[J]. 西安交通大学学报, 2016,50(6):136-142.

Cold Energy Recycle from Cryogenic Wind Tunnel Exhaust System[J]. 2016, 50(6): 136-142.
赖欢 1, 2, 陈振华 2, 等. 大型高速低温风洞冷量回收的方法研究[J]. 西安交通大学学报, 2016,50(6):136-142. DOI： 10.7652/xjtuxb201606021.

Cold Energy Recycle from Cryogenic Wind Tunnel Exhaust System[J]. 2016, 50(6): 136-142. DOI： 10.7652/xjtuxb201606021.

摘要

为提高低温风洞排气冷量的综合利用和节能减排

实现大型低温风洞科学建设

分析了目前大型低温设备冷量回收利用的现状和方法; 针对低温风洞高雷诺数试验运行中排气系统的工作流程和特点

对大型高速低温风洞排气冷量进行了初步计算

结合当前低温工质气化冷量回收技术方案的流程分析和国内外低温系统冷量回收利用的技术特点

对低温风洞液氮喷雾制冷后冷量回收与高效利用的方法和可行性进行了初步研究。综合考虑技术难度和投资经济性

提出了通过蓄冷设备、空分装置、固态氮制取进行冷量回收的3种主要技术途径。分析结果表明:采用蓄冷设备需要周边用冷设备支持

回收效率低; 利用空分装置无需额外投资

经济性较好; 固态氮制取回收效率高

硬件投资大

经济性较差。通过合理调整风洞试验流程

选取合适的技术方案

可以实现大型低温风洞的冷量回收。

Abstract

To promote the usage of potential cold energy from exhaust system of cryogenic wind tunnel

realize scientific construction and energy saving

the status and methods of cold energy recycle are discussed. The operating processes and features of exhaust system in high Reynolds number testing are introduced and the cold energy from cryogenic wind tunnel exhaust system is calculated preliminarily. Based on the process analysis of oversea cold energy recycle schemes from cryogenic fluids gasification and the technical features of domestic cold energy recycle schemes

the recovery and efficient utilization of cold energy from liquid nitrogen spray cooling in cryogenic wind tunnel are studied. Considering the technology feasibility and economical efficiency

three expected cryogenic energy recycle schemes are provided

including a storage of the exhaust energy for civil air-conditioning

re-liquefying the gaseous nitrogen through an air separation process and using solid nitrogen as the cooling source. The advantages and disadvantages of the above-mentioned three approaches are analyzed. The first scheme has a low recycling rate because of the necessary additional cold-consuming equipment; the second scheme has an acceptable recycling rate and a good economical efficiency without additional investment; the third scheme has a good recycling rate but the further higher investment. Thus an appropriate recycle scheme and a reasonable wind tunnel testing process are important for cryogenic wind tunnel exhaust energy recycling.

关键词

Keywords

references

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