Effect of fluctuation of surface sea water temperature and ambient pressure on evaporation rate of evaporator in barometric type OC-OTEC system

1995 ◽  
Vol 115 (6) ◽  
pp. 33-40
Author(s):  
Masatsugu Amano ◽  
Hiroyuki Takazawa ◽  
Tadayoshi Tanaka
Keyword(s):  
Water Temperature ◽  
Evaporation Rate ◽  
Sea Water ◽  
Ambient Pressure

scholarly journals Effect of sea water temperature on egg size of Japanese anchovy.

1987 ◽  
Vol 53 (12) ◽  
pp. 2169-2178 ◽  
Author(s):  
Chifumi Imai ◽  
Syoiti Tanaka
Keyword(s):  
Water Temperature ◽  
Egg Size ◽  
Sea Water ◽  
Japanese Anchovy

Elevated sea-water temperature and solar UV-B flux associated with two successive coral mass bleaching events in Tahiti

1995 ◽  
Vol 46 (8) ◽  
pp. 1153 ◽  
Author(s):  
JH Drollet ◽  
M Faucon ◽  
PMV Martin
Keyword(s):  
Water Temperature ◽  
Coral Bleaching ◽  
Sea Water ◽  
Bleaching Event ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Long Line ◽  
Solar Uv ◽  
Line Transects ◽  
A Minor

After a minor coral bleaching event in 1993, a more dramatic episode occurred in Tahiti from March to July 1994. Coral bleaching was recorded along four continuous 25-m-long line transects. Physico-chemical parameters of the sea water (temperature, salinity, dissolved oxygen and pH) were noted once a week, and solar UV-B flux was recorded daily before and during the bleaching episode. Results emphasized the importance of the taxonomic position of coral in susceptibility to bleaching. The evolution of bleaching through time was related to mean daily solar UV-B flux and sea-water temperature. Moreover, comparison of the 1993 and 1994 data suggested temperature and/or UV-B thresholds that may elicit minor or severe bleaching events.

The Orientation of Littorina Species to Polarized Light

1961 ◽  
Vol 38 (1) ◽  
pp. 189-202
Author(s):  
G. H. CHARLES
Keyword(s):  
Water Temperature ◽  
Sea Water ◽  
Polarized Light ◽  
Minimum Amount ◽  
Optimum Temperature ◽  
Inverted Position

1. Four British species of Littorina, viz. L. littoralis (L.), L. saxatilis (L.), L. littorea (L.) and L. neritoides (L.), responded when crawling on horizontal surfaces in air and in sea water to plane polarized light incident from above. Photonegative winkles crawled parallel to the plane of vibration (e vector) and photopositive molluscs at right angles to the plane of vibration. 2. The investigations with L. neritoides confirmed the observations of Fraenkel (1927) on the reversal of phototaxis from photonegative to photopositive when this winkle was crawling in the inverted position immersed in sea water. This change of response was considerably influenced by the sea-water temperature, the optimum temperature being within the range from 10° to 12° C. 3. Examination of the eye failed to reveal birefringent structures. It is suggested that the mechanism of analysing plane polarized light is a simple reflexion/refraction phenomena based on Fresnel's laws of refraction of polarized light, the minimum amount of light being refracted into the eye when the animal is crawling parallel to the plane of vibration.

Experimental Study on the Interaction of Molten Sn With Water

2018 ◽  
Author(s):  
Longkun He ◽  
Pengfei Liu ◽  
Xisi Zhang ◽  
Wenjun Hu ◽  
Bo Kuang ◽  
...  
Keyword(s):  
Water Temperature ◽  
High Speed ◽  
Nuclear Power ◽  
Power Plants ◽  
Dynamic Pressure ◽  
Ambient Pressure ◽  
Influence Factors ◽  
Video Camera ◽  
Metallic Oxide ◽  
Set Up

In nuclear power plants, fuel-coolant interaction (FCI) often accompanied with core melt accidents, which may escalate to steam explosion destroying the integrity of structural components and even the containment under certain conditions. In the present study, a new facility for intermediate-scaled experiments named ‘Test for Interaction of MELt with Coolant’ (TIMELCO) has been set up to study FCI phenomena and thermal-hydraulic influence factors in metal or metallic oxide/water mixtures with melt at maximum 2750°C. The first series of tests was performed using 3kg of Sn which was heated to 800°Cand jetted into a column of 1m water depth (300mm in diameter) under 0.1MPa ambient pressure. The main changing parameter was water temperature, at 60 °C and 72 °C respectively. From the high-speed video camera, violent explosion phenomenon occurred at water temperature of 60°C, while no evident explosion observed at 72°C. The size of melt debris at 60°C is smaller than this at 72°C.On the contrary, the dynamic pressure at 60°C is larger. The results indicate that water temperature has an important effect on FCI and decreasing the temperature of the coolant is advantageous to the explosion.

scholarly journals Effect of air parameters, water temperature, and number of pool occupants on moisture gains

2018 ◽  
Vol 70 ◽  
pp. 02006
Author(s):  
Agnieszka Garnysz-Rachtan ◽  
Zbigniew Zapałowicz
Keyword(s):  
Water Temperature ◽  
Water Surface ◽  
Evaporation Rate ◽  
Water Evaporation ◽  
Physical Parameters ◽  
Air Humidity ◽  
Air Velocity ◽  
Relative Air Humidity ◽  
Thermal Calculations ◽  
The Right

Thermal calculations for indoor swimming pools require that amount of water evaporated from the pool's water surface, as well as water evaporated from the floor surrounding the pool and from the bodies of the occupants are to be determined. It means in practice that amount of vapor transferred to the air in the pool hall depends most of all on physical parameters of water and air. One of more important factors that affect water evaporation is also the way the pool is operated. The present article shows only chosen relations applied to determine the values of evaporation rate from occupied pool. The relations also account for the mode of pool's operation. The aim of the paper is to analyse the effect of changes of temperature and of relative air humidity in the hall, of water temperature and of air velocity above the water surface, as well as of the number of occupants on moisture gains in the hall. The above data let choose the right relation to be applied in calculations for the water evaporation rate.

scholarly journals The Melting of Free-Drifting Icebergs

1980 ◽  
Vol 1 ◽  
pp. 119-122 ◽  
Author(s):  
D. S. Russell-Head
Keyword(s):  
Low Temperature ◽  
Water Temperature ◽  
Population Studies ◽  
Sea Water ◽  
Surface Shape ◽  
Different Temperatures

Blocks of ice with the proportions of tabular icebergs have been observed melting in water of different temperatures and salinities. The sub-surface shape adopted by the blocks melting in water of the same salinity as sea-water was typically a ‘bath-tub’ one. The basal and mean-side melt rates were of a similar value. The melt rates obtained in the laboratory for icebergs in water of a low temperature match those inferred from population studies of Antarctic icebergs. The melt rate is proportional to the water temperature above the onset of freezing raised to the power 1.5 and melt rates at 18°C are likely to be greater than one metre per day.

Relationship between Sea Temperature Change and Tropical Cyclones Based on Argo

2011 ◽  
Vol 250-253 ◽  
pp. 2782-2786
Author(s):  
Jiong Zhu ◽  
Jian Cheng Kang
Keyword(s):  
Water Temperature ◽  
Sea Water ◽  
Interpolation Method ◽  
Observation Data ◽  
Continuous Change ◽  
Weighted Interpolation ◽  
Sea Temperature ◽  
Actual Observation ◽  
Distance Weighted ◽  
Inverse Distance Weighted Interpolation

The relationship between sea water temperature with depth and the maximum cyclone wind speed was analyzed, the temperature was acquired before 24h of the cyclones occurred by using of data of Argo floats and cyclones in 2005, and taking advantage of inverse distance weighted interpolation method. The results showed that: (1) the Tropical Cyclone’s intensity had a strong correlation with the sea water temperature in the depth of about 42m or so. (2) Under the conditions of similar latitude, according to the energy conservation law, the maximum intensity of cyclones wind was a linear function of sea water temperature, depth, and continuous change in the overall rate, which was verified through the actual observation data.

Sign in / Sign up

Export Citation Format

Share Document