A Thermal Stability and Heat Transfer Investigation of Five Hydrocarbon Fuels

2002 ◽  
Author(s):  
Benjamin Stiegemeier ◽  
Michael Meyer ◽  
Ray Taghavi
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Hydrocarbon Fuels

Onset of Natural Convection from a Suddenly Heated Horizontal Cylinder

1980 ◽  
Vol 102 (4) ◽  
pp. 636-639 ◽  
Author(s):  
J. R. Parsons ◽  
J. C. Mulligan
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Thermal Stability ◽  
Heat Capacity ◽  
Natural Convection ◽  
Stability Analysis ◽  
Horizontal Cylinder ◽  
Finite Cylinder ◽  
Global Motion ◽  
Experimental Apparatus

A study of the onset of transient natural convection from a suddenly heated, horizontal cylinder of finite diameter is presented. The termination of the initial conductive and “locally” conuectiue heat transfer regime which precedes the onset of global natural convection is treated as a thermal stability phenomenon. An analysis is presented wherein the effects of finite cylinder diameter, cylinder heat capacity, and cylinder thermal conductivity are included in calculations of the convective delay time. A simple experimental apparatus is described and data presented. The thermal stability analysis is confirmed experimentally and data is presented which indicates localized natural convection prior to global motion.

Preparation and Thermal Properties of High-Purified Molten Nitrate Salt Materials with Heat Transfer and Storage

2015 ◽  
Vol 34 (8) ◽  
Author(s):  
Hongtao Zhang ◽  
Youjing Zhao ◽  
Jingli Li ◽  
Lijie Shi ◽  
Min Wang
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Thermal Properties ◽  
Molten Salts ◽  
Operating Temperature ◽  
Nitrate Salt ◽  
Solar Salt ◽  
And Storage ◽  
Thermal Stability Of ◽  
Operating Temperature Range

AbstractThis paper focuses on thermal stability of molten salts, operating temperature range and latent heat of molten salts at a high temperature. In this experiment, multi-component molten salts (purified Solar Salt) composed of purified NaNO

THERMAL STABILITY OF HYDROCARBON FUELS

1961 ◽  
Author(s):  
G. D. KITTREDGE ◽  
W. L. STREETS ◽  
REX RATCHFORD
Keyword(s):  
Thermal Stability ◽  
Hydrocarbon Fuels ◽  
Thermal Stability Of

Effects of Buoyancy on Heat Transfer and Oxygen Consumption in Fuel-Thermal-Stability Studies

1994 ◽  
Author(s):  
Viswanath R. Katta ◽  
James W. Blust ◽  
Theodore F. Williams ◽  
Charles R. Martel
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Oxygen Consumption ◽  
Test Section ◽  
Reynolds Numbers ◽  
Momentum Equation ◽  
Flow Rates ◽  
Fuel Flow ◽  
Block Temperature ◽  
Bottom To Top

A unique methodology is used to investigate the effects of gravity on fuel flowing through the small-bore heated tubes that are often used in the study of fuel-thermal-stability characteristics. The copper block that houses the fuel tube (or test section) is located on a swivel, and experiments are conducted for different tube orientations namely; horizontal, vertical with flow from bottom to top and vice versa. Results obtained for different fuel-flow rates and block temperatures are discussed. An axisymmetric, time-dependent numerical model is used to simulate the flow patterns in the test section. This model solves momentum, energy, species and k-ε turbulence equations. The buoyancy term is included in the axial-momentum equation. Natural flow resulting from buoyancy was found to have a significant effect on heat transfer and oxygen consumption for fuel-flow rates up to 100 cc/min (Reynolds numbers up to 2300). Flow instabilities were observed when the fuel was flowing downward in a vertically mounted test section. The effect of block temperature and flow rate on these instabilities was also studied.

scholarly journals Evaluation of heat transfer and thermal stability of supercritical JP-7 fuel

1997 ◽  
Author(s):  
Diane Linne ◽  
Michael Meyer ◽  
Tim Edwards ◽  
David Eitman ◽  
Diane Linne ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Thermal Stability Of

The Optimization Ratio Study of Steady State Heat Transfer and Dynamic Heat Transfer in Hot-Humid and Cold-Humid Area

2014 ◽  
Vol 935 ◽  
pp. 52-56
Author(s):  
Shuang Liang ◽  
Wang Yan
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Thermal Inertia ◽  
Residential Building ◽  
Optimal Matching ◽  
Shape Coefficient ◽  
Inertia Index ◽  
Matching Relation

By means of the establishment of thermal stability evaluation model and simulating in Huafeng factory residential building ,the relationship between the D value and building thermal stability and the optimal distribution ratio are obtained.The results show that:at the shape coefficient≤0.40, the most optimal matching relation is :heat transfer coefficient is 1.0, thermal inertia index is 2.0;at the shape coefficient >0.40, the most optimal matching relation is :heat transfer coefficient is 0.8, thermal inertia index is 2.0.

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