Essays about: "nusselt"

Showing result 1 - 5 of 10 essays containing the word nusselt.

1. 1. Experimental Investigation of High Prandtl Number Flow in Additive Manufactured Channels

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : LINDA YANG; [2023]
   Keywords : Additive manufacturing; Heat transfer; Darcy friction factor; Nusselt number; Minichannel.; Friformsframställning; Värmeöverföring; Darcy friction factor; Nusselt number; Minikanal.;

   Abstract : Additive manufacturing (AM) rapidly evolves and expands into new industries dueto its great design freedom and time savings. Injection molding is an excellentindustry where AM can help reduce cooling time by printing complex coolingchannels for more effective and uniform cooling. READ MORE

3. 2. Experimental Investigation of the Thermal Performance and Pressure Loss in Additively Manufactured mini-channels

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Anna Nyhlen; [2021]
   Keywords : ;

   Abstract : Industrial gas turbines reach temperatures of 1500-2000K at high rotational velocities which means that much effort is spent on the design of an efficient cooling system. With the recent advances of the additive manufacturing (AM) industry, new design opportunities have open up for many industries and applications, including the design of cooling systems. READ MORE

4. 3. Construction of a Heat Transfer Rig based on Energy Balance for Rapid Production of Correlations for Additively Manufactured Geometries

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Joaquin Quesada Zeljkovic; [2019]
   Keywords : ;

   Abstract : This thesis has set the first milestones towards building a Nusselt number correlation that adapts to the current state of art designing and manufacturing processes at Siemens Industrial Turbomachinery AB, focusing on cooling mini-channels produced with Additive Manufacturing.  Additive manufacturing (AM), also known as 3D printing, is a gamechanger technology that has revolutionised manufacture and design know-how, bringing down production cost, time and waste. READ MORE

5. 4. Investigation of the heat transfer of enhanced additively manufactured minichannel heat exchangers

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Hamidreza Rastan; [2019]
   Keywords : Minichannel; Microchannel; Heat exchanger; Additive manufacturing; 3D printing; Numerical simulation; CFD; Comsol;

   Abstract : Mini-/microchannel components have received attention over the past few decades owing to their compactness and superior thermal performance. Microchannel heat sinks are typically manufactured through traditional manufacturing practices (milling and sawing, electrodischarge machining, and water jet cutting) by changing their components to work in microscale environments or microfabrication techniques (etching and lost wax molding), which have emerged from the semiconductor industry. READ MORE

6. 5. Numerical Model of MeltingProblems

   University essay from KTH/Mekanik

   Author : Arturo Arosemena; [2018]
   Keywords : Phase change materials; fluid dynamics; heat transfer; natural convection; melting; enthalpy-porosity technique.;

   Abstract : In the present study, a finite volume method is employed to modelthe advection-diffusion phenomenon during a pure substance meltingprocess. The exercise is limited to a benchmark problem consisting ofthe 2D melting from a vertical wall of a PCM driven by natural convectionin the melt. READ MORE