Abstract
In order to develop a seawater desalination equipment utilizing solar heat, a performance test was performed on a three-stage solar heat vacuum distiller. The equipment can evaporate and condense water at low temperatures by reducing the pressure in a distilling section. Solar heat is collected by a heat collecting plate, by which water as the working fluid is evaporated and moved to a heat conducting section in an evaporation pipe in a state of steam. The steam is condensed in a low-temperature heat conducting pipe, the heat is released outside the heat conducting pipe, and seawater is evaporated under low pressure condition. The working fluid is circulated for repetitive use. Solar cells are used as a motive power source for a vacuum pump, hence the system is self-sustainable even if installed in a desert area and the like places. The construction is simple, highly durable, and easy in maintenance. The system has high water producing performance, uses no harmful substances whatsoever such as fluorocarbons, and is a friendly system to the global environment. Because of evaporation at low temperatures, heat loss to the surroundings and sensible heat due to temperature rise are small, and the system response is quick. The
More>>
Kawahara, T;
Toyoshima, Y;
[1]
Narasaki, Y;
Kamiya, I;
[2]
Sato, H
[3]
- Keio University, Tokyo (Japan)
- Ebara Corp., Tokyo (Japan)
- Keio University, Tokyo (Japan). Faculty of Science and Technology
Citation Formats
Kawahara, T, Toyoshima, Y, Narasaki, Y, Kamiya, I, and Sato, H.
Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken.
Japan: N. p.,
1997.
Web.
Kawahara, T, Toyoshima, Y, Narasaki, Y, Kamiya, I, & Sato, H.
Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken.
Japan.
Kawahara, T, Toyoshima, Y, Narasaki, Y, Kamiya, I, and Sato, H.
1997.
"Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken."
Japan.
@misc{etde_625364,
title = {Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken}
author = {Kawahara, T, Toyoshima, Y, Narasaki, Y, Kamiya, I, and Sato, H}
abstractNote = {In order to develop a seawater desalination equipment utilizing solar heat, a performance test was performed on a three-stage solar heat vacuum distiller. The equipment can evaporate and condense water at low temperatures by reducing the pressure in a distilling section. Solar heat is collected by a heat collecting plate, by which water as the working fluid is evaporated and moved to a heat conducting section in an evaporation pipe in a state of steam. The steam is condensed in a low-temperature heat conducting pipe, the heat is released outside the heat conducting pipe, and seawater is evaporated under low pressure condition. The working fluid is circulated for repetitive use. Solar cells are used as a motive power source for a vacuum pump, hence the system is self-sustainable even if installed in a desert area and the like places. The construction is simple, highly durable, and easy in maintenance. The system has high water producing performance, uses no harmful substances whatsoever such as fluorocarbons, and is a friendly system to the global environment. Because of evaporation at low temperatures, heat loss to the surroundings and sensible heat due to temperature rise are small, and the system response is quick. The solar heat can be utilized more effectively as multiple effects. When a heat collecting plate of 7.76 m {sup 2} was used, maximum yield of 105.45 kg/day was obtained. The system`s distillation efficiency is higher than other types of solar heat utilizing distillers. 7 refs., 5 figs.}
place = {Japan}
year = {1997}
month = {Nov}
}
title = {Performance test of solar energy distillation system; Taiyonetsu riyo kaisui tansuika system no zosui seino shiken}
author = {Kawahara, T, Toyoshima, Y, Narasaki, Y, Kamiya, I, and Sato, H}
abstractNote = {In order to develop a seawater desalination equipment utilizing solar heat, a performance test was performed on a three-stage solar heat vacuum distiller. The equipment can evaporate and condense water at low temperatures by reducing the pressure in a distilling section. Solar heat is collected by a heat collecting plate, by which water as the working fluid is evaporated and moved to a heat conducting section in an evaporation pipe in a state of steam. The steam is condensed in a low-temperature heat conducting pipe, the heat is released outside the heat conducting pipe, and seawater is evaporated under low pressure condition. The working fluid is circulated for repetitive use. Solar cells are used as a motive power source for a vacuum pump, hence the system is self-sustainable even if installed in a desert area and the like places. The construction is simple, highly durable, and easy in maintenance. The system has high water producing performance, uses no harmful substances whatsoever such as fluorocarbons, and is a friendly system to the global environment. Because of evaporation at low temperatures, heat loss to the surroundings and sensible heat due to temperature rise are small, and the system response is quick. The solar heat can be utilized more effectively as multiple effects. When a heat collecting plate of 7.76 m {sup 2} was used, maximum yield of 105.45 kg/day was obtained. The system`s distillation efficiency is higher than other types of solar heat utilizing distillers. 7 refs., 5 figs.}
place = {Japan}
year = {1997}
month = {Nov}
}