4 research outputs found

    Experimental investigations of one and two-phase pressure drop during flow in minichannels

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    W pracy przedstawiono wyniki bada艅 eksperymentalnych opor贸w przep艂ywu mieszaniny woda-powietrze w poziomych kwadratowych minikana艂ach o 艣rednicy hydraulicznej od 2 do 6 mm. Wyniki bada艅 por贸wnano z metod膮 Lockharta-Martinelliego i Chisholma, uzyskuj膮c rozrzut punkt贸w na poziomie 40%, kt贸ry jest zbli偶ony do warto艣ci otrzymanych dla kana艂贸w konwencjonalnych.Results of experimental investigations of two-phase air - water mixture flow in horizontal quadratic minichannels with the hydraulic diameter from 2 to 6 mm are presented in the paper. The measured values were compared with calculated ones using the Lockhart-Martineiii and Chisholm methods. Accuracy of calculations with the standard deviation about 40% is close that obtained in conventional channels
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