HCBBS Forum (한국어)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

["回复已收到。第一个公式在发帖后秒懂,不过第二个公式仔细看过,Ps不能带MPa,要带Pa;这样公式才对,所以不需要×。"

2018-08-27View Original

Thread Content

"식Formula是对的,压力单位要用Pa nâ6"
Reply #22018-08-28
问题比较有深度,我看了下,这两个公式里面的单位是不一样的。 1.第一个公式里面,P的单位是Kg/cm^2, 1Kg/cm^2=9.8x10^4 N/m^2; Vt的单位是m^3/min, 1m^3/min=1/60m^3/s。再把所有计算得到w(或者是焦耳)除以1000换算成Kw.这就算出来了,9.8x10000/1000/60=1.6333. 1.第二个公式里面,P的单位是MPa, 1MPa=1000000Pa; Vt的单位是m^3/r (1转的工作容积),乘以电机每秒的转数即 n/60 ,得到m^3/s(每秒钟的容积),再把所有计算得到w(或者是焦耳)除以1000换算成Kw.这个公式算出来的结果,1000000×n/60/1000。这个公式应该还要乘1000才对,得到结果就是Kw.
Reply #32018-08-28
第二个公式有错误,少乘了1000
Reply #42018-08-30
首先,感谢你的回答。第一个公式在我发出这个帖子后秒懂,不过第二个公式我仔细看了下,Ps不能带MPa,要带Pa,这样这个公式才对,所以不需要×1000.
Reply #52018-08-30
公式是对的,压力单位要用Pa

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.