In this paper, capture efficiency of range hoods is measured for boiling water and non-boiling salad oil at 100℃ . The influence difference in thermal updraft over a pot with without the same temperature on discussed. Analytical conditions CFD using RANS to consider effect are studied.

I N T R O D U C T I O N Mechanical and metallurgical requirements impose limits on the rates at which aluminum alloys can be quenched by water sprays. The upper limit is set by the occurrence of plastic deformation which causes warping of the product and the lower limit is set by an inability to develop the required metallurgical properties in subsequent heat treatment operations. In addition, ...

Background The volatility of a compound is its ability to change into a vapor, or to evaporate at a particular temperature and pressure. The normal boiling point of a liquid usually allows comparison of its volatility to other materials, with lower boiling points indicating greater volatility, but this may be affected somewhat by the presence of other materials. Comparison of the concentration ...

The boiling points, rates of change of boiling point with pressure, and densities of methyl acetate, ethyl acetate, n-propyl acetate, and n-butyl acetate were measured by precise comparative methods using water as the reference standard . As in previous work on the normal saturated hydrocarbons and normal aliphatic alcohols, it was found that the introduction of each CH2 group into the chain of...

Heat transfer coefficient in nucleate pool boiling near critical heat flux at least one orderhigher than the convectional heat transfer modes. In this paper, an experimental setup isdesigned and fabricated to investigate the mechanism of heat transfer from boiling surface tobulk liquid near critical heat flux. The images of pool boiling near the high heat flux regionreveals that the individual ...

BACKGROUND GCSB-5, an herbal drug composition with an anti-inflammatory effect, is prepared by boiling, which is the most common herbal extraction method in traditional Korean medicine. Several parameters are involved in the process, i.e., extractant type, herb-to-extractant ratio, extraction temperature and pressure, and total boiling time. OBJECTIVES The aim of this study was to examine the...

In this study, we analysed the thermal performance, thermal stability and optimum design analyses of a longitudinal, rectangular fin with temperature-dependent, thermal properties and internal heat generation under multi-boiling heat transfer using Haar wavelet collocation method. The effects of the key and controlling parameters on the thermal performance of the fin are investigated. The therm...