COMPARATIVE ANALYSIS OF HEAT-TRANSFER CAPABILITY OF EVAPORATION-CONDENSATION AND RECUPERATIVE TUBULAR HEAT EXCHANGERS

Author(s):  
A. Gershuni ◽  
A. P. Nishchik ◽  
Victor Razumovskiy
Entropy ◽  
2017 ◽  
Vol 19 (6) ◽  
pp. 256 ◽  
Author(s):  
Chao He ◽  
Youzhou Jiao ◽  
Chaochao Tian ◽  
Zhenfeng Wang ◽  
Zhiping Zhang

2018 ◽  
Vol 93 ◽  
pp. 944-949 ◽  
Author(s):  
Conger Wang ◽  
Wei Jiang ◽  
Wenqian Zuo ◽  
Guangting Han ◽  
Yuanming Zhang

This chapter is proposed to solve the insufficient MQL cooling and heat transfer capability based on the heat transfer enhancement theory of solid. Adding nanoparticles into the base fluid can significantly elevate heat conductivity coefficient of the base fluid and enhance convective heat transfer capability of the grinding area. Researchers have carried out numerous experimental studies on nanofluids with different concentrations. However, the scientific nature of MQL cooling has not been explained. Degradable, nontoxic, low-carbon, and environmentally friendly green grinding fluid, palm oil taken as the base fluid, grinding force, grinding temperature and proportionality coefficient of energy transferred to workpiece of nanofluids with different volume fractions, are investigated in this chapter. Based on the analysis of the influence of physical characteristics of nanofluids on experimental results, cooling and heat transfer mechanism of NMQL grinding is studied. The experimental study can provide a certain technical guidance for industrial machining.


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