نتایج جستجو برای: triple evaporator

تعداد نتایج: 49700  

Journal: :SHINKU 1969

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Journal: :Chemical engineering 1971

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Journal: :Desalination 1970

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2014
R. Q. Zhu X. Q. Zheng Y. Z. Wu Rui Qi Zhu Xiao Qing Zheng Ye Zheng Wu

A new method is proposed to control the evaporator's superheat with an electronic-expansion-valve (EEV). The conventional PID control with invariable parameters can not receive sound performance because of the variation of evaporators' characteristic parameter under disturbances. To solve this problem, fuzzy algorithm is utilized to adjust parameters ofPID control on line, two practical methods...

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Journal: :Journal of Power and Energy Engineering 2013

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Journal: :Chemical & Engineering News Archive 2002

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Journal: :The chemical machinerey 1951

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2014
I. W. Eames

Due to the undesirable environmental consequences ofR12, there is a great challenge to find a suitable substitute for Rl2. A new refrigerant blend Rl34a!R218/R600a (88'Yoi9'Yol 3%) called JSCEON 49 has been developed as a long term, zero ozone depletion-potential replacement for Rl2. A computer program was written to calculate the cycle characteristics, such as cooling capacity, coefficient of ...

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Journal: :Chemical engineering 1956

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Journal: Journal of Algorithms and Computation 2013
Amir Mohammadpour Hossein Shokouhmand Masoud Jamali Ashtiani Mohammad Ali Akhavan Behabadi

The pressure drop of refrigerant R-134a flow boiling inside a horizontal tube has been investigated experimentally. The test set-up which was used in this investigation is a well instrumented vapor compression refrigeration system. These instruments are thermocouples, flow meter, pressure gauges and the pressure drop measuring apparatus. This system consisted of three electrically heated evapor...

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