Basic Study on Vessel to Make Ice Ball and Coolant for Keeping Freshness of Marine Products

2012 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Fuel Cell ◽  
The Other ◽  
Piping System ◽  
Rapid Freezing ◽  
Stream Of Consciousness ◽  
Basic Study ◽  
Cryogenic Fluids ◽  
Marine Products ◽  
Environmental Agreement ◽  
Device Technology

The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the water and liquid nitrogen.

Basic Study on Promotion of Evaporating Cryogenic Fluids by Direct Contacting Normal Temperature Fluids

2009 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hirofumi Iyama ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
The Other ◽  
Piping System ◽  
Rapid Freezing ◽  
Stream Of Consciousness ◽  
Basic Study ◽  
Cryogenic Fluids ◽  
Environmental Agreement ◽  
Device Technology

The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the water and liquid nitrogen.

Basic Study on Explosive Evaporation of Cryogenic Fluids by Contacting Normal Temperature Fluids in the Pressure Vessel

2011 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hirofumi Iyama ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Pressure Vessel ◽  
The Other ◽  
Piping System ◽  
Rapid Freezing ◽  
Stream Of Consciousness ◽  
Basic Study ◽  
Cryogenic Fluids ◽  
Explosive Evaporation ◽  
Environmental Agreement ◽  
Device Technology

The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the water and liquid nitrogen.

Basic Study on Pressure Vessel for Vaporization of Cryogenic Fluids by Direct Contacting Normal Temperature Fluids

2012 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Pressure Vessel ◽  
Liquid Fuel ◽  
Piping System ◽  
Stream Of Consciousness ◽  
Basic Study ◽  
Cryogenic Fluid ◽  
Cryogenic Fluids ◽  
Environmental Agreement ◽  
Effective Use ◽  
Device Technology

In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. We paid attention to the effective use of cold heat of the liquid fuel which is a cryogenic fluid. That method is to use a cold heat which an cryogenic fluid has, without a heat exchanger. The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the room temperature fluids and cryogenic fluids.

Evaporating Cryogenic Fluids by Direct Contacting Normal Temperature Fluids

2011 ◽  
Vol 673 ◽  
pp. 219-224
Author(s):  
Toshiaki Watanabe ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Liquid Fuel ◽  
Room Temperature ◽  
Piping System ◽  
Rapid Freezing ◽  
Stream Of Consciousness ◽  
Cryogenic Fluid ◽  
Cryogenic Fluids ◽  
Environmental Agreement ◽  
Effective Use ◽  
Device Technology

In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. We paid attention to the effective use of cold heat of the liquid fuel which is a cryogenic fluid. That method is to use a cold heat which an cryogenic fluid has, without a heat exchanger. The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the room temperature fluids and cryogenic fluids.

Basic Study on Pressure Vessel for Vaporization of Cryogenic Fluids by Direct Contacting Normal Temperature Fluids

2010 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hirofumi Iyama ◽  
Hironori Maehara ◽  
Shigeru Itoh
Keyword(s):  
Pressure Vessel ◽  
Liquid Fuel ◽  
Room Temperature ◽  
Piping System ◽  
Basic Study ◽  
Cryogenic Fluid ◽  
Cryogenic Fluids ◽  
Environmental Agreement ◽  
Effective Use ◽  
Device Technology

In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of conciousness for environmental agreement. On the other hand, as for fisheries as well, the use of a source of energy that environment load is small has been being a pressing need. We paid attention to the effective use of cold heat of the liquid fuel which is a cryogenic fluid. That method is to use a cold heat which an cryogenic fluid has, without a heat exchanger. The mixture of the extreme low temperature fluid and the normal temperature fluid becomes the cause which causes pressure vessel and piping system crush due to explosive boiling and rapid freezing. Therefore, we carried out the experiments related to promotion of evaporating cryogenic fluids, in the contact directly of the room temperature fluids and cryogenic fluids.

Flashing Phenomena of Liquid Nitrogen in a Pressure Vessel Under Rapid Depressurizations

2015 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hironori Maehara ◽  
Makoto Nakamura ◽  
Hiromitsu Ohta ◽  
Shigeru Itoh
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Liquid Nitrogen ◽  
Pressure Vessel ◽  
The Other ◽  
Stream Of Consciousness ◽  
Cryogenic Fluids ◽  
Environmental Agreement ◽  
Device Technology ◽  
Effect Of Surface

In recent years in Japan, the demand of cryogenic fluids like a LH2, LNG is increasing because of the advance of fuel cell device technology, hydrogen of engine, and stream of consciousness for environmental agreement. The purpose of this study is to clarify some fundamental features of the flashing of cryogenic fluids. Experiments on flashing of liquid nitrogen were conducted to clarify the effect of surface roughness of a vessel. Two types of pressure vessel were used. One is a vessel made of stainless steel, the other is a vessel made of glass. In the case of glass vessel, many types of boiling have been observed. The degree of superheat at the start of boiling was found to depend strongly on the rate of depressurization.

Basic Study of Anode Off-Gas Recycling Solid Oxide Fuel Cell Module with Fuel Regenerator

2021 ◽  
Vol 103 (1) ◽  
pp. 31-39
Author(s):  
Kazuo Nakamura ◽  
Takahiro Ide ◽  
Yasuharu Kawabata ◽  
Tatsuya Nakajima ◽  
Tatsuki Dohkoh ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Basic Study ◽  
Cell Module ◽  
Gas Recycling

FREEZING DAMAGE TO BOVINE CREAM INDICATED BY RELEASE OF ENZYMES

1959 ◽  
Vol 37 (7) ◽  
pp. 821-827 ◽  
Author(s):  
L. J. N. Cole ◽  
D. Kluepfel ◽  
C. V. Lusena
Keyword(s):  
Alkaline Phosphatase ◽  
Enzyme Activity ◽  
Xanthine Oxidase ◽  
Aqueous Phase ◽  
The Other ◽  
Rapid Freezing ◽  
Freezing Damage ◽  
Membrane Material ◽  
Fat Globules ◽  
Main Effect

When washed cream was frozen slowly and thawed, some breaking of the emulsion occurred and on centrifugation a pellet, mostly membrane material, was obtained. Xanthine oxidase and alkaline phosphatase were present in this pellet, but little enzyme activity was found in the aqueous phase. The main effect of slow freezing was to force the fat globules together so that alteration and redistribution of the membranes could occur, and, on thawing, fat could coalesce. Rapid freezing on the other hand distributed fat globules more evenly so that less coalescence could occur on thawing.

scholarly journals Study of the Effect of Activated Carbon Cathode Configuration on the Performance of a Membrane-Less Microbial Fuel Cell

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 619
Author(s):  
M. L. Jiménez González ◽  
Carlos Hernández Benítez ◽  
Zabdiel Abisai Juarez ◽  
Evelyn Zamudio Pérez ◽  
Víctor Ángel Ramírez Coutiño ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Removal Efficiency ◽  
Internal Resistance ◽  
Cod Removal ◽  
The Other ◽  
Cod Removal Efficiency ◽  
Water Recirculation ◽  
Better Than

In this paper, the effect of cathode configuration on the performance of a membrane-less microbial fuel cell (MFC) was evaluated using three different arrangements: an activated carbon bed exposed to air (MFCE), a wetland immersed in an activated carbon bed (MFCW) and a cathode connected to an aeration tower featuring a water recirculation device (MFCT). To evaluate the MFC performance, the efficiency of the organic matter removal, the generated voltage, the power density and the internal resistance of the systems were properly assessed. The experimental results showed that while the COD removal efficiency was in all cases over 60% (after 40 days), the MFCT arrangement showed the best performance since the average removal value was 82%, compared to close to 70% for MFCE and MFCW. Statistical analysis of the COD removal efficiency confirmed that the performance of MCFT is substantially better than that of MFCE and MFCW. In regard to the other parameters surveyed, no significant influence of the different cathode arrangements explored could be found.

FREEZING DAMAGE TO BOVINE CREAM INDICATED BY RELEASE OF ENZYMES

1959 ◽  
Vol 37 (1) ◽  
pp. 821-827 ◽  
Author(s):  
L. J. N. Cole ◽  
D. Kluepfel ◽  
C. V. Lusena
Keyword(s):  
Alkaline Phosphatase ◽  
Enzyme Activity ◽  
Xanthine Oxidase ◽  
Aqueous Phase ◽  
The Other ◽  
Rapid Freezing ◽  
Freezing Damage ◽  
Membrane Material ◽  
Fat Globules ◽  
Main Effect

When washed cream was frozen slowly and thawed, some breaking of the emulsion occurred and on centrifugation a pellet, mostly membrane material, was obtained. Xanthine oxidase and alkaline phosphatase were present in this pellet, but little enzyme activity was found in the aqueous phase. The main effect of slow freezing was to force the fat globules together so that alteration and redistribution of the membranes could occur, and, on thawing, fat could coalesce. Rapid freezing on the other hand distributed fat globules more evenly so that less coalescence could occur on thawing.

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