Download or read book Local Heat transfer Characteristics of a Row of Circular Air Jets Impinging on a Concave Semicylindrical Surface written by John N. B. Livingood and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was made of the local heat-transfer characteristics of air jets impinging on the concave side of a right circular semicylinder. A correlation was developed for expressing individual and combined effects of a number of dimensionless variables on the normalized Nusselt number distributions. Results of the present study are in good agreement with those of other investigators.

Download or read book NASA Technical Note written by and published by . This book was released on 1972 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Characteristics of a Row of Air Jets Impinging on the Inside of a Semi Circular Cylinder written by R. Ravuri and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results of average heat transfer coefficients for a row of air jets impinging on the inside of a semi-cylinder are presented. The variation of the average Nusselt Number with the wide range of Reynolds Numbers are found. Two semi-cylinder concave surfaces with different diameters, four different impinging jet configurations and variable impinging heights were investigated. The effect of introducing solid particles into the cooling air on the heat transfer performance was studied. (Author).

Download or read book NASA Technical Paper written by and published by . This book was released on 1984 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Characteristics of Air Jets from Straight Line Arrays of Circular Nozzles Impinging on Concave Semi cylindrical Surfaces written by Tamio Yamashita and published by . This book was released on 1968 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Characteristics of Air Jets from Straight Lines Arrays of Circular Nozzles Impinging in Concave Semi cylindrical Surfaces written by Tamio Yamashita and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Average Heat transfer Characteristics of a Row of Circular Air Jets Impinging on a Concave Surface written by John N. B. Livingood and published by . This book was released on 1972 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Local Heat Transfer Characteristics of Concave Cylindrical Surfaces Cooled by Impinging Slot Jets and Lines of Circular Jets with Spacing Ratios 1 25 to 6 67 written by C. W. Jenkins and published by . This book was released on 1969 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas Turbine Blade Cooling written by Chaitanya D Ghodke and published by SAE International. This book was released on 2018-12-10 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter the better. In gas turbines, the combustion temperature and the fuel efficiency are limited by the heat transfer properties of the turbine blades. However, in pushing the limits of hot gas temperatures while preventing the melting of blade components in high-pressure turbines, the use of effective cooling technologies is critical. Increasing the turbine inlet temperature also increases heat transferred to the turbine blade, and it is possible that the operating temperature could reach far above permissible metal temperature. In such cases, insufficient cooling of turbine blades results in excessive thermal stress on the blades causing premature blade failure. This may bring hazards to the engine's safe operation. Gas Turbine Blade Cooling, edited by Dr. Chaitanya D. Ghodke, offers 10 handpicked SAE International's technical papers, which identify key aspects of turbine blade cooling and help readers understand how this process can improve the performance of turbine hardware.

Download or read book Heat Transfer Characteristics of Single Lines of Circular Jets Impinging on Concave Cylindrical Surface written by Darryl E. Metzger and published by . This book was released on 1967 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review and Status of Heat transfer Technology for Internal Passages of Air cooled Turbine Blades written by Frederick C. Yeh and published by . This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impingement Jet Cooling in Gas Turbines written by R.S. Amano and published by WIT Press. This book was released on 2014-05-28 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the requirement for enhanced cooling technologies on modern gas turbine engines, advanced research and development has had to take place in field of thermal engineering. Among the gas turbine cooling technologies, impingement jet cooling is one of the most effective in terms of cooling effectiveness, manufacturability and cost. The chapters contained in this book describe research on state-of-the-art and advanced cooling technologies that have been developed, or that are being researched, with a variety of approaches from theoretical, experimental, and CFD studies. The authors of the chapters have been selected from some of the most active researchers and scientists on the subject. This is the first to book published on the topics of gas turbines and heat transfer to focus on impingement cooling alone.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Heat Transfer Characteristics Within an Array of Impinging Jets Effects of Crossflow Temperature Relative to Jet Temperature written by L. W. Florschuetz and published by . This book was released on 1985 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spanwise average heat fluxes, resolved in the streamwise direction to one stream-wise hole spacing were measured for two-dimensional arrays of circular air jets impinging on a heat transfer surface parallel to the jet orifice plate. The jet flow, after impingement, was constrained to exit in a single direction along the channel formed by the jet orifice plate and heat transfer surface. The crossflow originated from the jets following impingement and an initial crossflow was present that approached the array through an upstream extension of the channel. The regional average heat fluxes are considered as a function of parameters associated with corresponding individual spanwise rows within the array. A linear superposition model was employed to formulate appropriate governing parameters for the individual row domain. The effects of flow history upstream of an individual row domain are also considered. The results are formulated in terms of individual spanwise row parameters. A corresponding set of streamwise resolved heat transfer characteristics formulated in terms of flow and geometric parameters characterizing the overall arrays is described.

Download or read book Heat Transfer 1978 General papers written by and published by . This book was released on 1978 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Characteristics of Quasi cylindrical and Semi cylindrical Surfaces Exposed to Normally Impinging Air Jets written by Rafael Villalba and published by . This book was released on 1994 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer by a Multiple Array of Round Jets Impinging Perpendicular to a Concave Surface written by W. Tabakoff and published by . This book was released on 1971 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was undertaken to study jet impingement cooling of a semi-cylindrical concave surface in a semi-enclosed environment. The investigation showed that it was possible to obtain a correlating formula for the various parameters involved. The effect of jet 'spent air' on heat transfer was also observed. The results are compared with those of Kercher and Tabakoff who carried out a similar investigation using a flat plate. (Author).