["총 열량을 구하세요"

2019-09-28View Original

Thread Content

["4킬로그램 증기 18℃에서 5℃까지 �.Euler의 증발열 143℃ 증발열 温度降到53℃까지 냉.총 열량 공식을 구합니다."

Reply #22019-09-28

"(18-143)*cp"

Reply #32019-09-28

"그리고 이 값을 질량 흐름에 곱하면 원하는 Q가 되겠죠"

Reply #42019-09-29

"이런 계산은 교과서 문제를 계산할 때는 괜찮겠지만, 실용적인 계산에서는 큰 오차가 있을 수 있습니다…关键点在于饱和蒸汽的焓值上在实际工程中很难达到饱和蒸汽要么是过过热要么是有一定的湿度… 由于饱和状态基本不可能在真空下都很难达到如果是蒸汽加热后温度降到53度那这个湿度就很大了这样计算出来的误差可能在5~1之间"

Reply #52019-09-29

"안녕하세요,如果进行工程计算的话怎样计算误差会小一些呢"

Reply #62019-09-29

"11分别计算143度和55度的焓值"

Reply #72019-09-29

"즉,直接查表找出对应焓值然后加起来是这个意思吗"

Reply #82019-09-29

"대응하는焓值查出来之后再乘以一个干度系数这个干度系数就需要经验总结了司可能是9%，也可能是%%，也可能更低…之所以说是总结的经验系数是是因为这个还取决于实际工况条件"

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.

["총 열량을 구하세요"

Thread Content

Submit a Project

Disclaimer

Quick Links