مرور Volume 26, Issue 3 بر اساس تاریخ انتشار

در حال نمایش موارد 1 - 13 از 13

  • Studies on Soot Formation and Combustion in Turbulent Spray Flames: Modeling and Experimental Measurement 

    Bashirnezhad, Kazem؛ Moghiman, Mohammad؛ Zahmatkesh, Iman (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    The present study is concerned with measuring and simulating soot formation and combustion in turbulent liquid fuel spray flames. Soot concentrations inside the combustor are measured by filter paper technique. The ...

  • An Investigation of Z-in Distortion in Mononuclear Cu(II) Complex with Terpyridine Ligands, [Cu(terpy)2](PF6)2 

    Saravani, Hamideh؛ Rezvani, Ali Reza؛ Hadadzadeh, Hassan؛ Safari, Nasser (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    The first crystal structure of  [Cu(terpy)2](PF6 )2 , where terpy=2,2':6',2"-terpyridine is reported. Green crystals of  [Cu(terpy)2](PF6 ...

  • Ion Exchange Column Performance Model for Separation of Zr(IV) and Hf(IV) in Elution Process 

    Fatemi, Shohreh؛ Feizy Zarnagh, Hamid؛ Kalantari, Masoud؛ Salehi, Zeynab (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    A mathematical model of sorption of Zirconium and Hafnium cations mixture and elution of these ions from a cation exchange resin bed is developed. Sulfuric acid is selected as the eluent for selective separation of Zr ...

  • New Sol-Gel Solution with 45 Days Stability for Preparation Silica Thin Films 

    Adelkhani, Hadi؛ Mellatnavaz, Bahram؛ Roohi, Hossein؛ Noorbakhsh, Mansoor (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    As we know sol-gel is one of the most important techniques for thin film preparation. In this paper, high transmission silica thin films have been prepared by dip-coating process from a new silicon-alkoxide solution. ...

  • The Hydration Products of a Refractory Calcium Aluminate Cement at Intermediate Temperatures 

    Nilforoushan, Mohammad Reza؛ Talebian, Nasrien (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    The major hydraulic phase in all the calcium aluminate cements including ciment fondue is CA (CaAl2O4). Once hydrated, it starts to form the hexagonal crystals of CAH10 and C2

  • VLE Predictions of Strongly Non-Ideal Binary Mixtures by Modifying Van Der Waals and Orbey-Sandler Mixing Rules 

    Lotfollahi, Mohammad Nader؛ Modarress, Hamid؛ Khodakarami, Behzad (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    By proposing a predictive method with no adjustable parameter and by using infinite dilution activity coefficients of components in binary mixtures obtained from UNIFAC model, the binary interaction parameters ...

  • Removal of PAHs from n-Paraffin by Modified Clinoptilolite 

    Faghihian, Hossein؛ Mousazadeh, Mohammad Hossein (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    The ability of natural clinoptilolite and its modified forms were studied for removal of PAHs from n-paraffin. Surfactant modified zeolite (SMZ) was obtained by modifying clinoptilolite with hexadec ...

  • Solubility Prediction of High Molecular Weight n-Paraffins in Supercritical Carbon Dioxide 

    Moradi Tehrani, Navid؛ Modarress, Hamid؛ Mohsen Nia, Mohsen (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    Solubility of high molecular weight n-paraffins in supercritical carbon dioxide has been a matter of interest to many researchers. However, not sufficient solubility experimental data are available although the methods ...

  • Applying the PR-EOS to Predict the Onset of Asphaltene Precipitation from n-Alkane Diluted Bitumens 

    Soroush, Samaneh؛ Vafaie Sefti, Mohsen؛ Masoudi, Rahim (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    Asphaltenes are the n-pentane or n-heptane insoluble fractions of crude oil that remain in solution under reservoir temperature and pressure conditions. They are destabilized and start to precipitate when the pressure, ...

  • Ohmic Contact of Cu/Mo and Cu/Ti Thin Layers on Multi-Crystalline Silicon Substrates 

    Dehghan Nayeri, Fatemeh؛ Esfandiyarpour, Behzad؛ Behnam, Ashkan؛ Asl Soleimani, Ebrahim؛ Mohajerzadeh, Shamsodin؛ Maleki, Mohammad Hadi (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    Cu-Mo and Cu-Ti contact structures were fabricated on multi-crystalline silicon substrates to provide a low resistance ohmic contact. Deposition steps are done in an excellent vacuum chamber by means of electron beam ...

  • Determination of Minimum Miscibility Pressure by Analytical Method 

    Motaleby Nedjad, Ali Reza؛ Vafaie Sefti, Mohsen؛ Naderi, Hassan (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    The analytical theory of one dimensional, dispersion free miscible displacement of oil by injection gas with nc component has shown that: the MMP is the lowest pressure at which any one of the initial oil, ...

  • Application of the Genetic Algorithm to Calculate the Interaction Parameters for Multiphase and Multicomponent Systems 

    Rashtchian, Davood؛ Ovaysi, Saeed؛ Taghikhani, Vahid؛ Ghotbi, Cirous (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    A method based on the Genetic Algorithm (GA) was developed to study the phase behavior of multicomponent and multiphase systems. Upon application of the GA to the thermodynamic models which are commonly used to study ...

  • Experimental Study of Coating in a Bottom Sprayed Fluidized Bed 

    Alavi, Sayed Mahdi؛ Mirmomen, Leila (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2007-09-01)
    Several investigations have been devoted towards understanding the coating process in fluidized beds. Most of these studies focused on spraying liquid droplets over the bed. However, due to the complexity of these ...