Ans: For flow through non circular tubes, the Reynolds number, Nusselt number, as well as friction factor, are based on the hydraulic diameter, Dh.Circular Tube: Square Duct: Rectangular Duct:Channel:

Thermodynamics ForumJun 18, 2021What is work producing device and what is work consuming device according to thermodynamics?LikeReactions10 comments0Views

Thermodynamics ForumJul 20, 2022Thermal Efficiency of Rankine Cycle - GATE ME '98LikeReactions00 comments0Views

Thermodynamics ForumJul 01, 2022What is the difference between Nusselt number and Biot number?LikeReactions00 comments0Views

Thermodynamics ForumMay 05, 2022What is an exact differential and what is an inexact differential?LikeReactions00 comments0Views

Thermodynamics ForumJul 20, 2022Air-Fuel ratio in Gas Turbine - GATE ME '98LikeReactions00 comments0Views

justincorhadApr 05, 2022Does this water pumping device use the Rankine cycle?LikeReactions015 comments15Views

Thermodynamics ForumJul 14, 2022What are the limitations of the LMTD method?LikeReactions00 comments0Views

Thermodynamics ForumMay 05, 2022Why do the heat and work are path functions?LikeReactions00 comments0Views

Thermodynamics ForumJul 14, 2022What is the difference between LMTD and AMTD?LikeReactions00 comments0Views

Thermodynamics ForumJul 11, 2022What is Dittus-Boelter equation? What are the assumptions and limitations of the Dittus-Boelter equation?LikeReactions00 comments0Views

Thermodynamics ForumMay 31, 2022What is the criteria for lumped system analysis?LikeReactions00 comments0Views

Thermodynamics ForumJul 22, 2022Equation of streamline from velocity components - GATE ME '06LikeReactions00 comments0Views

Thermodynamics ForumMay 12, 2022How to calculate pump work in the Rankine cycle?LikeReactions00 comments0Views

Thermodynamics ForumDec 08, 2022What is the relation between average velocity and maximum velocity in fully developed laminar pipe flow? LikeReactions00 comments0Views