Results 171 to 180 of about 14,418,879 (249)

Edge Weld Cooling Rates

Transactions of the Canadian Society for Mechanical Engineering, 1983
Numerical modelling techniques are used to investigate the effect of heat source shape on the cooling rate (at 700 C) of edge welds. Cooling rates are determined for point, line, planar and volume heat sources. These, in turn, are compared to experimental values and to cooling rates calculated by the traditional Adams[1] relationship where the heal ...
A.S. Oddy, M.J. Bibby
openaire   +1 more source

COOLING RATES OF FOODS

Journal of Milk and Food Technology, 1973
Rapid cooling is essential to prevent multiplication of microorganisms in potentially hazardous foods. This requirement is frequently not met with viscous foods in large containers. The time required to cool an 8-gal container of white sauce from 105 to 57 F was 25 hr.
R. W. Dickerson, R. B. Read
openaire   +1 more source

Cooling rates in splat cooling

Materials Science and Engineering, 1967
Abstract Calculations and experimental observations made on cooling rates during splat quenching are presented. Three possible types of cooling behavior are discussed: ideal cooling, intermediate cooling and Newtonian cooling. The effects of splatting-process variables on the cooling rates are described, the most important of these variables being ...
openaire   +1 more source

Cool! Rates of Heating and Cooling

Journal of Chemical Education, 2007
In this Activity, students measure and graph the rate of warming for a chilled thermometer bulb held in room temperature air, for a chilled bulb held between two fingers, and for a few milliliters of chilled water. Students are familiar with the everyday phenomena of warming, but measurement affords the unexpected result that the process is not linear.
openaire   +1 more source

Delayed liquid cooling strategy with phase change material to achieve high temperature uniformity of Li-ion battery under high-rate discharge

, 2020
This work aims at achieving high temperature uniformity of large battery modules during high C-rate discharge with a low flowrate fluid. A new scheme of delayed liquid cooling combing phase change material (PCM) and liquid cooling is proposed for a Li ...
Jiahao Cao, Ziye Ling, X. Fang, Zhengguo Zhang   +3 more
semanticscholar   +1 more source

Cryocrystallography: effect of cooling medium on sample cooling rate

Journal of Applied Crystallography, 1998
The rates of cooling of small samples with cold N2gas (100 K), liquid N2(77 K) and liquid propane (100 K) have been measured. The samples were one bare Cu-constantan thermocouple and one coated with a 0.25 mm layer of silicone rubber cement. Gas cooling yielded the lowest rate, liquid N2the highest.
Linda J. Walker, Phillip O. Moreno, Håkon Hope   +2 more
openaire   +1 more source

Rate of runaway evaporative cooling

Physical Review A, 2011
Evaporative cooling is a process that is essential in creating Bose-Einstein condensates in dilute atomic gasses. This process has often been simulated based on a model using a truncated Boltzmann distribution. This model assumes that the energy distribution up to the threshold energy can still be described by a Boltzmann distribution: it assumes ...
J. van de Groep, P. van der Straten, J. M. Vogels   +2 more
openaire   +1 more source

Cooling rates of seven hexahedrites

Geochimica et Cosmochimica Acta, 1978
Abstract Cooling rates for seven hexahedrites, (Uwet, Coahuila, Walker County, Lombard, Quillagua, Hex River Mountains and Tocopilla) have been determined using a ternary diffusion controlled phase growth analysis developed by the authors. The model is applied to the exsolution and growth of plate phosphides in the kamacite phase of hexahedrites ...
E. Randich, J.I. Goldstein
openaire   +1 more source

On crystal size and cooling rate

Journal of Microscopy, 1986
SUMMARYA theoretical model is proposed which is used to derive a quantitative relationship between the critical cooling rate and average crystal size at any location within a biological specimen of given shape subject to rapid freezing. The model is applicable to the slamming, plunging or spraying methods of cryofixation provided the ice crystal size ...
openaire   +2 more sources

Cooling rate affects rhesus monkey sperm survival

Journal of Medical Primatology, 2012
AbstractBackground  The rate at which lethal intracellular ice formation occurs during cryopreservation is highly dependent on several variables. The objective of this study was to determine the optimal rate at which rhesus sperm can be cooled.Methods  Experiments were performed using three rates of cooling.
Shiho, Sumigama, Stuart, Meyers
openaire   +2 more sources