DRYING PROMOTION OF AGRICULTURAL PRODUCTS USING CORONA DISCHARGE
利用电晕放电促进农产品干燥
基本信息
- 批准号:05660290
- 负责人:
- 金额:$ 1.28万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1993
- 资助国家:日本
- 起止时间:1993 至 1994
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Drying of agricultural products is promoted by ion wind from corona discharge. They say the forced convection caused by ion wind results this promotion, however, this is not explained perfectly. In order to explain this mechanism, the forced convection with air ion and that without air ion were used for water evaporation test and radish drying test. The former convection was called "with-air-ion" and the latter "non-air-ion". Both were made from ion wind. In addition drying of shiitake mushroom using corona discharge was evaluated.The evaporation rate using non-air-ion increased linearly with voltage, and that using with-air-ion increased in step. From -4 kV to -10 kV the evaporation rate using with-air-ion was higher than non-air-ion, and was equal to or lower than non-air-ion from -10kV to -14 kV.There were little difference between drying rate of radish using with-air-ion and non-air-ion at 9.8kV.It was appeared that the effect of air ion on radish drying was little, however, considering water evaporation test, drying test at another voltage should be performed.After corona discharge the evaporation rate of water was sometimes retarded in comparison with natural evaporation. The evaporation was enhanced under the corona discharge so that water temperature decreased owing to latent heat loss. It seems that the change of heat balance on account of water temperature drop caused the evaporation retardation.The drying promotion of shiitake mushroom using corona discharge was recognized under various experimental conditions The ratio of drying rate of corona discharge method to conventional method was 1.6 max. As a result of measurements of shirinkage, color and water absorption of dried shiitake mushroom, shrinkage decreased and color was little more yellow and absorption didn't change on account of using corona discharge.
利用电晕放电产生的离子风促进农产品干燥。他们认为离子风引起的强迫对流是这种促进的原因,然而,这并没有得到完美的解释。为了解释这一机理,采用有空气离子和无空气离子的强制对流进行水分蒸发试验和萝卜干燥试验。前者称为“有空气离子”对流,后者称为“无空气离子”对流。两者都是由离子风制成的。采用电晕放电对香菇进行辅助干燥,无空气离子时蒸发速率随电压线性增加,有空气离子时蒸发速率随电压阶跃增加。在-4 ~-10 kV电压范围内,空气离子的蒸发速率高于无空气离子,在-10 ~-14 kV电压范围内,空气离子的蒸发速率等于或低于无空气离子。电晕放电后水分的蒸发速率有时比自然蒸发速率慢。电晕放电促进了蒸发,使蒸发潜热散失,使水温降低。在不同的实验条件下,电晕放电对香菇的干燥有促进作用,电晕放电干燥速率与常规干燥速率之比最大为1.6。通过对香菇干制品的收缩率、色泽和吸水率的测定,发现电晕放电使香菇干制品的收缩率降低,色泽变黄,吸水率没有变化。
项目成果
期刊论文数量(17)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
内野敏剛,村上 敏 他、: "イオン風によるダイコンの乾燥" 農業機械学会年次大会講演要旨. 54(掲載予定). (1995)
Toshitake Uchino、Satoshi Murakami 等人:“利用离子风干燥萝卜”日本农业机械学会年会摘要 54(待出版)。
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- 影响因子:0
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薛 國栄,内野敏剛 他、: "コロナ放電からのイオン風によるシイタケ乾燥促進" 農業機械学会年次大会講演要旨. 54(掲載予定). (1995)
Kuniei Seo、Toshitake Uchino 等人:“通过电晕放电的离子风促进香菇的干燥”日本农业机械学会年会摘要 54(待出版)。
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- 影响因子:0
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薛國栄・内野敏剛,他: "コロナ放電下の水の蒸発挙動について" 農機学会年次大会講演要旨. 53. 473-474 (1994)
K. Seol、Toshiyuki Uchino 等:“关于电晕放电下水的蒸发行为”日本农业机械工程师学会年会摘要 53. 473-474 (1994)。
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薛國栄・内野敏剛,他: "コロナ放電によるダイコンの乾燥促進に関する研究" 農機学会関東支部大会講演要旨. 29. 44-45 (1994)
Kuniei Seol、Toshiyuki Uchino 等:“通过电晕放电加速日本萝卜干燥的研究”日本农业机械工程师学会关东分会会议摘要 29. 44-45 (1994)。
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- 影响因子:0
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XUE G., T.UCHINO,et al.: "Drying Promotion of Radish under Corona discharge" Proceeding of annual meeting of JSAM Kanto Branch. 29. 44-45 (1994)
XUE G.,T.UCHINO,等:“电晕放电下萝卜的干燥促进”JSAM关东分会年会论文集。
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UCHINO Toshitaka其他文献
UCHINO Toshitaka的其他文献
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{{ truncateString('UCHINO Toshitaka', 18)}}的其他基金
Elusidation of microstructure of biofilm attached on the surface of agricultural produce
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- 批准号:
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Development of low temperature and high humid storagesystem for fresh produce by using nano-sized mist
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22380138 - 财政年份:2010
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Grant-in-Aid for Scientific Research (B)
Development of distribution system for managing safety and high quality of fresh fruit and vegetables
建立新鲜果蔬安全优质管理流通体系
- 批准号:
19380144 - 财政年份:2007
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Grant-in-Aid for Scientific Research (B)
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预测微生物生长、生存或死亡的专家系统,保障食品和农产品安全
- 批准号:
16380175 - 财政年份:2004
- 资助金额:
$ 1.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
SIMULATION FOR PROCESSING OF AGRICULTURAL PRODUCTS USING PHYSICAL CHEMISTRY
利用物理化学模拟农产品加工
- 批准号:
07456114 - 财政年份:1995
- 资助金额:
$ 1.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B)