• Title/Summary/Keyword: 경사진 육면체

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An Experimental Study on the Condensation Characteristics of Sea Water in the Tilted Box with Solar Radiation (태양열을 받는 경사진 육면체 내 해수의 응축특성에 관한 실험적 연구)

  • Kim, Beom-Han;Kim, Byung-Chul
    • Journal of the Korean Solar Energy Society
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    • v.31 no.4
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    • pp.27-33
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    • 2011
  • To find effective way of the production of distilled water for drought and flood with solar radiation, three boxes were made same base each 1000mm ${\times} $1000mm and tops are 45 degree. Individual boxes contained the sea water, rain water and surface water were placed at the same location and same time. Condensation of each box has been compared. On clear day production of distilled water in the box with sea water was 36% and 32% less than boxes with rain water and surface water. The maximum condensation reached when the temperature of the top and bottom parts are equal. As concentration of sea water increased production of distilled water was decreased. In the box with sea water, the surface temperature was lower than 3cm below the surface. Optimum collector area for producing distilled water 2000ml of these three boxes were $3.75m^2$

Quantitative Analysis of the Condensation Characteristics with Solar Radiations and Inner Temperature of the Tilted Box (일사량과 경사진 육면체 내부의 온도변화에 따른 응축특성에 관한 정량적 연구)

  • Lee, Cheun-Gi;Koh, Young-Ha;Kim, Byung-Chul
    • Journal of the Korean Solar Energy Society
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    • v.31 no.1
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    • pp.44-50
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    • 2011
  • The solar radiation, inner temperature of the tilted box and the amount of condensed water were measured to find the most effective purified water production system. The inner temperature of the tilted box was related with solar radiation that was affected by sunshine and cloud. With analyzing those relationships of the solar radiation, inner box temperature, the angle of tilted boxes and amounts of water condensation optimal collecting system area could be calculated.

A Study on the Solar Distillation in a Cube with Tilted Angles (경사진 육면체에서의 태양열에 의한 증발효과에 대한 연구)

  • Park, Yeong-Hoon;Kim, Byung-Chul
    • Journal of the Korean Solar Energy Society
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    • v.24 no.1
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    • pp.13-19
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    • 2004
  • Four solar stills that were fabricated each with cubes and glazing tilted angles of $15^{\circ},\;30^{\circ},\;45^{\circ},\;60^{\circ}$, were compared with the quantities of condensed water. The quantifies of condensed water were analysed with the weather conditions and temperatures for three months. On fine days, the quantify of average condensed water was more similar to those of $15^{\circ}$ and $30^{\circ}$ than to those of $45^{\circ}$ and $60^{\circ}$. The quantity of condensed water produced by those of $45^{\circ}$ and $60^{\circ}$ were very irregular compared to those of $15^{\circ}$ and $30^{\circ}$. On rainy days, the quantify of condensed water was the most in that of $30^{\circ}$ than those of the other angles and in cloudy, rainy and sunny conditions, the condensation quantify was the largest in that of $60^{\circ}$.

A Study on the Solar Distillation in a Cube with Tilted Angles (경사진 육면체에서의 태양열에 의한 증발 현상에 대한 연구)

  • Park, Yeong-Hoon;Kim, Byung-Chul
    • Proceedings of the KSME Conference
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    • 2004.04a
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    • pp.1424-1429
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    • 2004
  • Distillation is one of many processes that can be used for the purification of water. It requires an energy input such as heat and solar radiation is a possible source of energy. In this process, water is evaporated, thus separating water vapor from the solute. The vapor is then condensed to pure water. The temperature of the water, the cavity of the enclosure and the surface of the glass was measured everyday. Fifteen points were chosen for the temperature measure using a thermocouple. The inner wall and the bottom of each still was painted black for good absorption of heat. The enforced glass was used for the cover for the entering of solar energy. The size of all of the water baths was the same, but the glass of the rectangular form had a tilted angle. In the case of fine or general weather, the volume of condensed water produced by $45^{\circ}$ and $60^{\circ}$ is very irregular compared to that of $15^{\circ}$ and $30^{\circ}$, In case of a rainy day, the occurrence of the volume of condensed water was similar to that of $15^{\circ}$ and $30^{\circ}$, but the volume of condensed water produced by $30^{\circ}$ was the highest.

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