Scraped-surface heat exchangers (SSHEs) are extensively used in a wide vari-ety of industrial settings where the continuous processing of uids and uid-like materials is involved. The steady non-isothermal ow of a Newtonian uid with temperature-dependent viscosity in a narrow-gap SSHE when a constant tem-
Sep 13, 2012 · Scraped surface exchangers can also be used to process foods sensitive to heat and/or to mechanical stress. Coefficients of heat transfer vary with speeds of rotation and with heated fluid characteristics, and are quite high, in the order of 900-4000 J m -2 s -1 °C -1. Figure 2. Different heat exchanger equipments in section view. How to select the best heat exchanger for food Jun 15, 2018 · It was replaced with a different type of heat exchanger, which uses seven 3-inch tubes resolved the pressure issues. In addition, the new unit has an oscillating cleaning system, which is gentler than a rotary scraped surface heat exchanger, further helping to maintain the quality of the sauce.
The technique is particularly attractive for heat sensitive liquids, e.g. food or pharmaceutical products, because of the low interface temperature between the liquid and heat transfer surface for a given overall temperature driving force. In the scraped surface heat exchanger, spring loaded rotating blades scrape the surface and effectively remove liquid from it. Alternatively, the blades move against the heat transfer surface Sauces - HRS Heat Exchangers:Heat Transfer Systems Rapid and effective heat exchange avoids undesirable flavours, such as a burned taste, which can be common with other types of heat exchanger. Heat exchangers used in the production of sauces must also work with high viscosity fluids and preserve any particles in the food without breaking them.
The Votator® II is the newest design of scraped surface heat exchangers. It is a combination of design features from the proven Votator family, Thermutator Heat Exchangers, and new innovations resulting in a rugged, economical, and hygienic heat exchanger that can be used for heating and cooling products of a wide range of viscosities, including extremely thick and sticky products that require the cam action of Scraped surface heat exchanger - Hercules Scraped Detailed description. l) The product enters and leaves the heat exchanger through specially profiled cylinder heads, which are designed for easy product flow and low stress; especially good for the safe processing of shear sensitive fluids. 2) Blades attached to the rotating shaft, create a gentle and high~ effective recirculation action as the
The APV VT+/HT+ Scraped Surface Heat Exchangers (SSHE) provide exceptional performance for heating or cooling of a wide range of medium viscosity products including soups, dips, sauces, creams, soft cheese, chocolate, fruit / vegetable purees, baby Viscosity of Food or Drink Should Determine Heat Exchanger Jan 21, 2020 · Scraped-surface heat exchangers generally come in two typesrotary and reciprocating. Care is required to balance the action of the heat exchanger in preventing fouling with gentle handling of the product so as not to alter quality parameters and viscosity (as was the case in the
This scrape heat exchanger is widely used in the production of aseptically packaged food and beverage:High viscosity products:tomato sauce, mayonnaise, banana puree, fruit concentrates and jams, ice cream and yogurt Large solid particle materials:
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