Capable of reliable operation in a wide range of process applications, including those in the polymer, plastic, and food and beverage industries, kenics heat exchangers require less. View notes kenics corporation outline from mktg 4853 at university of arkansas. This mixer is perfect for the instant dilution of juice concentrates, flavors or colorants in prepared foods. Its compact, inline design allows for easy installation inot exisiting pipelines. The hev provides pressure losses up to 75% lower than other conventional static mixers, and can handle any turbulent flowmixing process regardless of size or shape. Chemineer offers the kenics hev highefficiency static mixer. Mixing in the kenics static mixer is analyzed in this paper. The kenics hev static mixer provides installation flexibility that has not been available in the past.
New results for walltotube heat and mass transfer in a kenicstype static mixer allow a unification of extent data. On the performance of static mixers eindhoven university of. Flow ratios of 199 and 1090 are simulated at nine different injection locations, and two alternative geometries are considered in addition to the standard kenics mixer. Formation of co2 hydrate using a kenicstype static mixer was studied experimentally. The smooth element geometry results in efficient mixing of miscible fluids in laminar or turbulent flow and dispersion of immiscible fluids or. The elements use the energy from the process stream to provide blending, dispersion, and heat transfer with minimal pressure energy loss. Kenics corporation case study andrew smith marketing. Kenics static mixers are currently being used in numerous processing applications, in order to reduce overall costs and significantly improve efficiency, speed and control. Continuous process for production of hydrogenated nitrile.
Kenics static mixer, which are being utilized in various industrial operations. Cfd approach of growing cuparticles in a kenics static. Numerous independent studies have shown that kenics static mixers maximize mixing efficiency without the wasted energy and material blockage typically found in more restrictive motionless mixers. The patterns of hydrate formation were found to be dependent on the flow velocities of liquid co2 and water. Study of effects of design modification in static mixer. Often used mixing devices are dynamic mixers for agitated tanks and static mixers for pipeline mixing. The purpose of the mixer is to mix the 1% diluted sulfuric acid with thegeothermal brine in order to achieve the targeted brines ph level. Kenics kmx static mixer pumps seals valves process equipment. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. Investigation of turbulent flow field in a kenics static. The mixing of ideal viscoelastic boger fluids within a kenics km static mixer has been assessed by the. Measurements in the static mixer were carried out for three values of the reynolds number. While conventional mixers are generally confined to circular cross sections, the hev static mixer can easily be configured to square, rectangular, or 3 sided ducts. The mapping approach is applied to study the distributive mixing in the, widely industrially used, kenics static mixer.
Additional velocity reversal and flow division results from combining alternating right and lefthand elements, thus increasing mixing efficiency. The kmx utilizes crossstream mixing and flow splitting to achieve very rapid blending. Demonstratie van het stromingspatroon in een kenics statische menger, type wvm. Since 1965, in thousands of installations worldwide. Heat transfer exclusive edgesealed mixing elements give kenics static mixer heat transfer rates 3 to 10 times greater than open tubes. Hi,for a ph control application, we recieved a quotations for the 16 hastelloy c static mixer. Approximate 4 diameter x 42 long tube, rated 1485 psi at 300 degrees f. Kenics static mixer national oilwell varco nov pdf catalogs. Used chemineer kenics fixed element static mixer, model 4kms6, stainless steel. Kenics have been leader and pacemaker in inline mixing and heat transfer technology since 1965, providing efficient, reliable, uninterrupted performances and long service life patented designs and element geometries, aimed to maximize the conversion of the flow energy into efficient mixing, top quality materials of construction, easy maintenance and widespread customer. Inline mixer for water treatment static mixer kenics. Chemineer, dayton, ohio, recently announced the startup of its compass chemineer online mixer pricing and selection system online store offering kenics static mixers. The static mixers available on the market can be classified into groups as follows. For demanding mixing applications, such as those involving fluids with widely disparate viscosities or volume ratios, the common limiting factor in static mixer design is the allowable mixer len.
Outlet end connection types and sizes can be easily. The helical mixer splits the flow and turns both halves through 90o. The kenics helical mixing element is mainly used for inline blending of liquids under laminar flow conditions. Additional velocity reversal and flow division results from combining alternating right and left. Find, read and cite all the research you need on researchgate. A kenics static mixer features a series of helical mixing elements within a long cylindrical tube. Shell and tube exchangers utilized kenics elements to boost heat transfer rates for. Km mixers can be found in a wide range of markets including chemical, refining, oil and gas, polymer, food, pulp and paper, and water and wastewater treatment. Kenics corporation outline zach gleeson jon m shapiro.
Static mixers,devices with stationary solid mixing elements mounted inserted along the axis of pipe, are often used for a variety of reasons. The flexibility of the mapping method makes it possible to study and compare thousands of different mixer layouts and perform optimization with respect to macroscopic homogenization efficiency and interface generation. Andrew smith marketing management professor shapiro kenics corporation case study section 1. Kenics static mixers are being widely used in the food and chemical industries for a variety of mixing applications such as singlephase homogenization, liquidliquid dispersion, or gasliquid dispersion, etc. The km static mixer produces rapid mixing by inducing circular patterns that reverse direction at each element intersection. Thus, for 266 p joshi et al the chemical engineering joumal 59 1995 265 271 eq. Static mixers consist of metallic inserts that fit into a pipeline and redirect flow in order to improve. Mixing performance of viscoelastic fluids in a kenics km inline static. Improved thermal uniformity optimizes process performance. The lda setup was a onechannel backscatter system with argonion laser. The results of the kenics static mixer obtained from the.
Kenics km kenics static mixers by national oilwell varco. A kenics static mixer is used to optimize the flow inside the reactor. Solutions and designs are offered to accurately determine the water content in crude oil and hydrocarbon streams. Chemineer incorporates advanced technology into every kenics mixer to give you reliable, uninterrupted performance that you can depend on for the long term.
The performance of the kenics static mixer for mixing small streams of passive tracer into the bulk flow is investigated as a function of injection location and flow ratio. Kenics static mixers have set the standard for inline mixing and heat transfer performance. Introduction mixing is an operation commonly encountered in the chemical process industries. Now, we seek the dimensionless numbers describing the pressure drop in a kenics static mixer. Numerical simulation of granular mixing in static mixers with different. The growth of the copper particles is investigated by monte carlo simulations inside the static mixer. Effects of injection location, flow ratio and geometry on.
Kenics static mixers and heat exchangers utilize process specific elements in a housing for continuous flow applications. The main purpose of the present paper was to apply the laser doppler anemometry lda technique to measure turbulent liquid flow in a kenics static mixer. Numerical research of pressure drop in kenics static mixer. The kenics mixer consists of a number of left and righthand helical elements. In all kenics km series static mixers, a patented helical mixing element directs the flow of material radially toward the pipe walls and back to the center. The kenics km series static mixers feature a patented helical mixing element which produces complete radial mixing and flow division for any combination of. The velocity field is calculated using helical coordinates. A general correlation for pressure drop in a kenics static. The flow in the kenics static mixer is investigated in detail both numerically and experimentally in the range of re 100. Kenics kenics kmxv static mixers by national oilwell. Two numerical methods, the lattice boltzmann lb method and fluent, were compared and used to simulate the flow. Problem statement poor leadership o leaders did not consider enough factors in the big picture. Reactor engineering by interrupting the parabolic velocity profile. Continuous formation of co2 hydrate via a kenicstype.
Internal mixing components are removable, allowing easy maintenance and cleaning. Additional velocity reversal and flow division results from combining alternating right and. Pdf analysis and optimization of kenics static mixers. The store helps processors quickly and easily select and purchase the proper static mixer for their specific application. Manual, introduction to the particle tracing module, p. Pdf flow and mixing with kenics static mixers researchgate. The quotations have been recieved from sulzer and chemineer kenics. This image shows the concentration distribution on the surface of a kenics static mixer. Kenics kmxv static mixers by national oilwell varco. The flows of liquid co2 and water were mixed in the static mixer, and co2 hydrate was formed continuously from the twophase flow. Their result showed that the kenics static mixer with a simple geometry gives a high performance.
664 1536 1069 388 210 1023 908 508 960 1105 964 436 533 1334 862 572 1126 1541 1206 798 1383 1045 12 119 83 179 581 816 1365 796 951 533 1585 869 474 896 1147 591 132 1276 54 38 926 349 743 1448