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RISA Modern Review on Jet Impingement Heat Transfer Methods
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Jet impingement cooling is considered as one of the most effective heat transfer enhancement techniques. The primary mode of heat transfer enhancement is due to the flow stagnation. The effectiveness of jet impingement as ...
Heat Transfer Enhancement Through Array Jet Impingement on Strategically Placed High Porosity High Pore-Density Thin Copper Foams
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High porosity, high pore-density (pores per inch: PPI) metal foams are a popular choice in high heat flux cooling applications as they offer large heat transfer area over a given volume, however, accompanied by a concomitant ...
Detailed Heat Transfer Measurements of Jet Impingement on Dimpled Target Surface Under Rotation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study investigates the effects of Coriolis force and centrifugal buoyancy force on heat transfer due to jet impingement on dimpled target surface (DT). Detailed heat transfer measurements were carried out using ...
Multipass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: 45-deg Angled Rib Turbulated Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotation-induced Coriolis and centrifugal buoyancy forces result in significant modification of cooling characteristics of blade pressure and suction side internal walls. The nonuniformity in cooling, coupled with high-speed ...
Multi-Pass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: Smooth Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The combined action of Coriolis and centrifugal buoyancy forces results in nonuniform heat transfer coefficient on pressure and suction side internal walls, hence leading to nonuniform metal temperatures and increased ...
Rib Turbulator Heat Transfer Enhancements at Very High Reynolds Numbers
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: High-pressure stage gas turbine blades feature serpentine passages where rib turbulators are installed to enhance heat transfer between the relatively colder air bled off from the compressor and the hot internal walls. ...
Jet Impingement Heat Transfer Enhancement by Packing High-Porosity Thin Metal Foams Between Jet Exit Plane and Target Surface
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: High-porosity metal foams are known for providing high heat transfer rates, as they provide a significant increase in wetted surface area as well as highly tortuous flow paths resulting in enhanced mixing. Further, jet ...
Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Determination of Heat Transfer Coefficient
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurate quantification of local heat transfer coefficient (HTC) is imperative for design and development of heat exchangers for high heat flux dissipation applications. Liquid crystal and infrared thermography (IRT) are ...
Effect of Rotation on Heat Transfer in AR = 2:1 and AR = 4:1 Channels Connected by a Series of Crossover Jets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detailed heat transfer measurements using transient liquid crystal thermography were performed on a novel cooling design covering the mid-chord and trailing edge region of a typical gas turbine blade under stationary and ...
Effect of Pin Fins on Jet Impingement Heat Transfer Over a Rotating Disk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Many engineering applications consist of rotating components that experience high-heat load. Applications like the gas turbine engine consist of rotating disks and the study of heat transfer over such rotating surfaces is ...