Canadian Journal of Chemical Engineering
Công bố khoa học tiêu biểu
* Dữ liệu chỉ mang tính chất tham khảo
Sắp xếp:
Liquid phase residence time distribution for two phase flow in coiled tubesAbstract The residence time distribution (RTD) of the liquid phase in air‐water flow through helical coils has been studied. Upward and downward cocurrent flows have been investigated in three coils with curvature ratios ranging from 11 to 60.7. The ranges of the Reynolds numbers for the gas and the liquid varied from 1500 to 3000 and 620 to 3200, respectively. A mo... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 74 Số 6 - Trang 861-866 - 1996
Gas—Liquid Flow Through Helical Coils in Horizontal OrientationAbstract Experimental investigations have been carried out to evaluate the two‐phase pressure drop and the holdup for gas‐Newtonian liquid flow through helical coils. 24 helical coils and three different liquids were used for the experiments. Empirical correlations have been developed to predict the two‐phase friction factor and the liquid holdup as functions of var... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 80 Số 5 - Trang 979-983 - 2002
Flow regimes, hold–up and pressure drop for two phase flowin helical coilsAbstract Experimental results on flow pattern, hold–up and pressure drop are presented for cocurrent upward and downward air water flow in helical coils. A tube of 0.01 m internal diameter was used and the ratio of coil to tube diameter was varied from 11 to 156.5. Water flow rate was varied from 4.9 × 10‐6 m3 /s to 92 × 10‐<... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 68 Số 4 - Trang 553-559 - 1990
The thermal and transport characteristics of nanofluids in a novel three‐dimensional deviceThe augmentation in heat transfer can be achieved by improving either transport phenomena with geometry perturbation or thermal conductivity of the fluid itself. In the present study, the simultaneous effects of both the geometry and improved thermal conductivity have been tried on heat transfer enhancement by using two different nanofluids (Al2 ...
Canadian Journal of Chemical Engineering - Tập 92 Số 12 - Trang 2185-2201 - 2014
Laminar dispersion in helically coiled tubes of square cross‐sectionAbstract In coiled tubes of non‐circular cross‐section the orientation of the cross‐sectional plane with respect to the direction of the centrifugal force has a significant effect on residence time distribution (RTD) which has been recognized for the first time. This aspect has been experimentally investigated in helically coiled tubes of square cross‐section, under... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 61 Số 1 - Trang 53-57 - 1983
Minimisation of axial dispersion by use of secondary flow in helical tubesAbstract It has been known for some time that many continuous chemical reactors give the greatest conversion when axial dispersion is minimized, i.e., when plug flow occurs. This paper considers the problem of attaining plug flow in continuous flow systems. The geometrical configuration of a tube wound into a helix is suggested us a convenient and efficient means of... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 42 Số 6 - Trang 239-246 - 1964
Influence of particle size distribution on the performance of fluidized bed reactorsAbstract This paper reviews recent results obtained in our laboratory and elsewhere which show the importance of particle size distribution (PSD) in fluidized beds. Fines content in itself, often used as a descriptor, is not a sufficient parameter to characterize the PSD effect. Broadening the PSD affects gas flow through the dense phase, produces smaller bubbles, l... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 69 Số 5 - Trang 1126-1134 - 1991
Assessment of control loop performanceAbstract For processes described by linear transfer functions with additive disturbances, the best possible control in the mean square sense is realized when a minimum variance controller is implemented. It is shown that an estimate of the best possible control can be obtained by fitting a univariate time series to process data collected under routine control. No ‘i... ... hiện toàn bộ
Canadian Journal of Chemical Engineering - Tập 67 Số 5 - Trang 856-861 - 1989
The engine reformer: Syngas production in an engine for compact gas‐to‐liquids synthesisMethane (CH4 ) reforming was carried out in an internal combustion engine (an “engine reformer”). We successfully produced syngas from the partial oxidation of natural gas in the cylinder of a diesel engine that was reconfigured to perform spark ignition. Performing the reaction in an engine cylinder allows some of the exothermicity to be captured...
Canadian Journal of Chemical Engineering - Tập 94 Số 4 - Trang 623-635 - 2016
Production of microparticles of PHBV polymer impregnated with progesterone by supercritical fluid technologyAbstract This work reports the synthesis of particles based on poly(3‐hydroxybutirate‐co‐3‐hydroxyvalerate) (PHBV) polymer that were impregnated with progesterone. The PHBV particles were obtained by supercritical CO2 (scCO2 ) anti‐solvent expansion (SAS). scCO2 was also used at a ...
Canadian Journal of Chemical Engineering - Tập 94 Số 7 - Trang 1336-1341 - 2016
Tổng số: 104
- 1
- 2
- 3
- 4
- 5
- 6
- 10