System Pressure

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H. Kirnak - One of the best experts on this subject based on the ideXlab platform.

  • Water temperature and System Pressure effect on drip lateral properties
    Irrigation Science, 2010
    Co-Authors: E. Dogan, H. Kirnak
    Abstract:

    A study was conducted at the department of Agricultural Structure and Irrigation, Harran University, Sanliurfa, Turkey, to determine the effect of increased irrigation water temperature at various irrigation System Pressures on emitter flow rate, lateral elongation, and Standard Flow Rate Index for six different brands of drip laterals. Test materials consisted of seven Pressure and seven non-Pressure compensating irrigation laterals from different manufacturers. Tests results showed that (a) tensile resistance stress tests indicated that 25% elongation levels were reached at about 40 kg of load. On average, Pressure compensating laterals reached 25% elongation at 38 kg, while non-Pressure compensating laterals reached 25% elongation at 32-kg load. There was no clear indication of the tested brands’ lateral wall thickness on the measurement, (b) Pressure-regulated drip emitters had no or limited flow rate change due to increased irrigation water temperature, whereas non-Pressure compensating emitters had significantly ( P  

  • Water temperature and System Pressure effect on drip lateral properties
    Irrigation Science, 2009
    Co-Authors: E. Dogan, H. Kirnak
    Abstract:

    A study was conducted at the department of Agricultural Structure and Irrigation, Harran University, Sanliurfa, Turkey, to determine the effect of increased irrigation water temperature at various irrigation System Pressures on emitter flow rate, lateral elongation, and Standard Flow Rate Index for six different brands of drip laterals. Test materials consisted of seven Pressure and seven non-Pressure compensating irrigation laterals from different manufacturers. Tests results showed that (a) tensile resistance stress tests indicated that 25% elongation levels were reached at about 40 kg of load. On average, Pressure compensating laterals reached 25% elongation at 38 kg, while non-Pressure compensating laterals reached 25% elongation at 32-kg load. There was no clear indication of the tested brands’ lateral wall thickness on the measurement, (b) Pressure-regulated drip emitters had no or limited flow rate change due to increased irrigation water temperature, whereas non-Pressure compensating emitters had significantly (P < 0.05) increased flow rates, and (c) finally, increased irrigation water temperature resulted in decreased flow rate variations that had a positive effect on standard deviation. Standard uniformity values improved with decreased flow rate variations in drip emitter flow rates.

E. Dogan - One of the best experts on this subject based on the ideXlab platform.

  • Water temperature and System Pressure effect on drip lateral properties
    Irrigation Science, 2010
    Co-Authors: E. Dogan, H. Kirnak
    Abstract:

    A study was conducted at the department of Agricultural Structure and Irrigation, Harran University, Sanliurfa, Turkey, to determine the effect of increased irrigation water temperature at various irrigation System Pressures on emitter flow rate, lateral elongation, and Standard Flow Rate Index for six different brands of drip laterals. Test materials consisted of seven Pressure and seven non-Pressure compensating irrigation laterals from different manufacturers. Tests results showed that (a) tensile resistance stress tests indicated that 25% elongation levels were reached at about 40 kg of load. On average, Pressure compensating laterals reached 25% elongation at 38 kg, while non-Pressure compensating laterals reached 25% elongation at 32-kg load. There was no clear indication of the tested brands’ lateral wall thickness on the measurement, (b) Pressure-regulated drip emitters had no or limited flow rate change due to increased irrigation water temperature, whereas non-Pressure compensating emitters had significantly ( P  

  • Water temperature and System Pressure effect on drip lateral properties
    Irrigation Science, 2009
    Co-Authors: E. Dogan, H. Kirnak
    Abstract:

    A study was conducted at the department of Agricultural Structure and Irrigation, Harran University, Sanliurfa, Turkey, to determine the effect of increased irrigation water temperature at various irrigation System Pressures on emitter flow rate, lateral elongation, and Standard Flow Rate Index for six different brands of drip laterals. Test materials consisted of seven Pressure and seven non-Pressure compensating irrigation laterals from different manufacturers. Tests results showed that (a) tensile resistance stress tests indicated that 25% elongation levels were reached at about 40 kg of load. On average, Pressure compensating laterals reached 25% elongation at 38 kg, while non-Pressure compensating laterals reached 25% elongation at 32-kg load. There was no clear indication of the tested brands’ lateral wall thickness on the measurement, (b) Pressure-regulated drip emitters had no or limited flow rate change due to increased irrigation water temperature, whereas non-Pressure compensating emitters had significantly (P < 0.05) increased flow rates, and (c) finally, increased irrigation water temperature resulted in decreased flow rate variations that had a positive effect on standard deviation. Standard uniformity values improved with decreased flow rate variations in drip emitter flow rates.

Norihiro Inagaki - One of the best experts on this subject based on the ideXlab platform.

Zhang Guoru - One of the best experts on this subject based on the ideXlab platform.

  • Notice of Retraction Design of System Pressure valve of 8-speed automatic transmission
    2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010
    Co-Authors: Tang Peng-xiang, Wang Shuhan, Xu Xiangyang, Li Wenyong, Zhang Guoru
    Abstract:

    System Pressure valve is very important for the performance of 8-speed automatic transmission (8AT). The new System Pressure valve of 8AT in front-wheel drive (FWD) is designed and simulated by ITI-SimulationX, its performance such as Pressure and flow of System Pressure valve were analyzed and optimized in a whole power train System including hydraulic System, mechanical System and control System. Because the model includes the interaction of all components from the different physical domains in whole power transmission System, this is very helpful for the performance optimization of System Pressure valve in real application of 8-speed automatic transmission.

  • Notice of Retraction: Design of System Pressure valve of 8-speed automatic transmission
    2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010
    Co-Authors: Tang Pengxiang, Wang Shuhan, Xu Xiangyang, Li Wenyong, Zhang Guoru
    Abstract:

    This article has been retracted by the publisher.

Liu Mou-sheng - One of the best experts on this subject based on the ideXlab platform.