Heat transfer in refrigerator condensers and evaporators d. It then flows down the inside walls of the tubes as a thin film. Process evaporator all industrial. In an evaporator handling an aqueous salt solution, the overall coefficient U .. of the Kestner long tube evaporator, introduced in , which is fitted with tubes. Parametric Design and Modeling of Semi Kestner Evaporator for a Sugar Mill. 1., a. 2., B.M. Dabade. 3. 1, 3(Department of Production .

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2x Antique Engineering Prints – The Kestner Climbing Film Evaporator | eBay

Further, since pipe 0 dischar es tangentially into A above the liquid leve a number of new results are accomplished. The elements A and Bare also connected lead from t ‘6 lower part of A into the bottom of B, and-the pipes e lead’ from theupr end: In Calandria, there are several connections for steam inlet, safety, condensate outlet, Water inlet, and non-condensable gases outlet.

Views Read Edit View history. The objects of my invention are to prevent or at least considerably reduce the amount of such scaling and also to enable those parts of the evaporator in which the scaling takes place to be from time to time cleaned without interfering toany material extent with the process of evaporation and concentration carried on.

Select evaportaor valid country. Email to friends Keestner on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab.

USIPL – Semi Kestner

The vapour produced then presses the liquid against the walls of the tubes and causes the ascending force of this liquid. Each of the secondary elements 13, further, so connected with the main element that the liquid to be concentrated will circulate through both and preferably. This evaporator is appropriate for high temperature application and materials with high viscosity that has a propensity to foul the transfer surfaces.

Evaporation is the removal of solvent as vapor from a. The effect of tube wetting rate on kestner performance at. The Artisan Rising Film Evaporator has similar basic fundamental as the general design of a long-tube vertical evaporator, but it is modified to allow for handling of more viscous and volatile material which the orthodox design may not be able to handle due to excessive fouling. This design has the advantage of maintaining the forced convection benefits of conventional clear juice heaters, while achieving it at the marginal cost of extra evaporator surface.


The evapprator vacu-. Take a look at our Returning an item help page for more details. Rising film evaporators can operate krstner and efficiently enough to avoid having to expose the product to high temperatures which may damage or undermine its quality. This page was last edited on 19 Aprilat The recovered end product should have an optimum solids. Competitive process designs like plate-type evaporators can handle liquids that are more viscous with higher fouling tendencies because the inner parts are more easily accessible kestned cleaning and maintenance.

Liquid evaporator all industrial manufacturers videos.

This design is created to re-concentrate a diluted solution to its desired concentration by evaporation while also allowing evaporated water to evaporayor simultaneously and be recovered for either recirculation or other purposes. Add to Watch list. However, the overall temperature difference has to be within the range of boiling points of the two components as it could affect the quality and the purity of the products.

Parametric design and modeling of semi kestner evaporator for. Add to basket. In terms of applications within these industries, rising tube evaporators are mainly used as reboilers for distillation columns, or as pre-concentrators or flash evaporators or pre-heaters designed to remove ksetner components prior to stripping.

Sign in for checkout Check out as guest. To all whom it may concern: For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees. Designed inhouse by sris worldrenowned experts, sri robert evaporator designs improve performance for sugar mills and refineries that are dependent on vapour bleeding for juice heating or pan stage boiling.

Keestner, as the vapour bubbles gradually fill the entire centre of the tube, the steam pressure reaches a peak value. The temperature difference for driving force is also defined heavily by the properties of steam and the boiling liquid. Various researchers define parametric modeling and design in their own way.

Patented July 26, Delivery times may vary, especially during peak periods.

This is the contact area of heat transfer which involves the outer surface area of the long vertical tubes that are parallel and in direct contact with the heating media housed within the shell of the evaporator. This is to produce steam and vapour within the tube bringing the liquid inside to a boil.


The performance of an evaporator station cannot be attributed solely to svaporator vessel design, but to the design of the station as a whole.

This connection prevents air accumulating in the top of the chamber of the ordinary pan while by reason of the narrow diameter of the secondary pan vapor velocities therein are too great to permit the steam chamber becoming air bound.

Hence, they are suitable to use as concentrators for juices, milk and other dairy products which are products that require delicate handling in the food industry.

To provide a properly reasoned op inion on the advisability of using clear juice heaters, it is. If for any reason you are not satisfied with your order we will gladly accept a return for refund or credit.


The umzimkulu uk and sezela sz kestner design data, together with the current operating data, are given in table 1. Estimated delivery dates – opens in a new window or tab include seller’s dispatch time, and will depend on postal service selected. We do not deal in facsimiles or reproductions of any kind. Please enter a number less than or equal to 1. This can be generalised to mean residence time of a product, which specifies the mean time of the product stays within the evaporator.

An evaporating apparatus, comprisin an evaporating pan adapted to contain and evaporate a body of liquid, means for withdrawing a portion of the liquid from said the same in an auxiliary pan in liquid an vapor communication with the main pan and returnin resultant vapors tangential y into said main pan, and a horizontal bafile plate within the vapor space of the main pan below which said liquid and vapor is discharged.

As more vapour is formed, the centre of the tube will have a higher velocity which forces the remaining liquid against the tube wall forming a thin film which moves upwards.

Feed is introduced at the top of the evaporator and is spread by wiper blades on to the vertical cylindrical surface inside the unit.