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Keywords: engines
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2017, 139(9): 091801.
Paper No: HT-16-1382
Published Online: May 16, 2017
... for publication in the J OURNAL OF H EAT T RANSFER . Manuscript received June 14, 2016; final manuscript received April 20, 2017; published online May 16, 2017. Editor: Portonovo S. Ayyaswamy. 14 06 2016 20 04 2017 Energy systems Aerospace applications Engines Fluids Gas turbine...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031006.
Published Online: January 11, 2012
...Minking K. Chyu The performance goal of modern gas turbine engines, both land-base and air-breathing engines, can be achieved by increasing the turbine inlet temperature (TIT). The level of TIT in the near future can reach as high as 1700 °C for utility turbines and over 1900 °C for advanced...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2011, 133(11): 111901.
Published Online: September 16, 2011
...Nawaf Y. Alkhamis; Akhilesh P. Rallabandi; Je-Chin Han Heat transfer coefficients and friction factors are measured in a 45 deg V-shaped rib roughened square duct at high Reynolds numbers, pertaining to internal passages of land-based gas turbine engines. Reynolds numbers in this study range from...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 082502.
Published Online: May 4, 2011
...Parviz Merati; Charles Davis; K.-H. Chen; J. P. Johnson Particle image velocimetry and thermal measurements using thermocouples are used to measure the buoyant flow of a simplified full-scale model of an engine compartment. The engine block surface temperature and exhaust heaters are kept at about...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2011, 133(1): 011001.
Published Online: September 27, 2010
... to its currents.” In this paper, we show how the constructal law accounts for the main features of the design of the biosphere: global movement of mass as the action of constructal engines (geophysical, animal, and human made) that dissipate their power into brakes, animal locomotion, vision, cognition...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2010, 132(12): 122202.
Published Online: September 21, 2010
... and complexity of the flow features present in those systems still require experimental validation of real engine designs. Among the experimental techniques possible to be used, transient liquid crystal method offers good resolution as well as sufficient accuracy. Under this investigation, an impingement cooling...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2010, 132(3): 031901.
Published Online: December 30, 2009
... Ribs—Turbine Blade Cooling ,” ASME J. Heat Transfer 0022-1481 , 127 , pp. 425 – 433 . 10.1115/1.1865220 Jia , R. , Sunden , B. , and Faghri , M. , 2007 , “ A New Low Reynolds Stress Transport Model for Heat Transfer and Fluid in Engineering Applications ,” ASME J. Heat...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2007, 129(12): 1686–1696.
Published Online: April 16, 2007
... (°C) T aw adiabatic wall temperature (°C) x axial distance along serpentine passage (m) x + nondimensional axial distance along passage ( 2 x ∕ D Re Pr ) This work was funded in large part by GE Aircraft Engines through the University...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2007, 129(2): 188–199.
Published Online: May 2, 2006
... to be undertaken that match the actual engine conditions. Laboratory-scale heat transfer measurements along centerlines of two rib-roughened surfaces are performed with Reynolds number (Re), rotation number (Ro), and density ratio ( Δ ρ ∕ ρ ) in the ranges of 7500–15,000, 0–1.8, and 0.076–0.294. The experimental...
Journal Articles
Article Type: Technology Review
J. Heat Transfer. April 2005, 127(4): 441–453.
Published Online: March 30, 2005
...Ronald S. Bunker Film cooling represents one of the few game-changing technologies that has allowed the achievement of today’s high firing temperature, high-efficiency gas turbine engines. Over the last 30 years, only one major advancement has been realized in this technology, that being...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. October 2003, 125(5): 911–915.
Published Online: September 23, 2003
...P. C. T. de Boer, Mem. ASME, Graduate School Professor of Mechanical and Aerospace Engineering, The flow through the regenerator of a Stirling engine is driven by differences of pressure in the compression and expansion spaces. These differences lead to power dissipation in the regenerator. Using...
Journal Articles
Article Type: Technical Notes
J. Heat Transfer. June 2003, 125(3): 535–537.
Published Online: May 20, 2003
... on temperature profiles inside droplets, is compared with predictions of the parabolic temperature profile and isothermal models. The comparison shows the applicability of the parabolic approximation to modelling of the heating of fuel droplets in realistic diesel engines. The simplicity of the model makes...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. February 2002, 124(1): 184–194.
Published Online: May 20, 2001
...Chan-Woo Park; Massoud Kaviany An existing in-cylinder thermal regeneration concept for Diesel engines is examined for the roles of the porous insert motion and the fuel injection strategies on the fuel evaporation and combustion and on the engine efficiency. While the heated air emanating from...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. May 2000, 122(2): 224–232.
Published Online: December 2, 1999
... characteristics to be measured. The wind tunnel is open circuit, subsonic, and located in the Convective Heat Transfer Laboratory of the Department of Mechanical Engineering of the University of Utah. A centrifugal blower is located at the upstream end, followed by a diffuser, a header containing...
Topics: Film cooling