Tubular Heat Exchangers | Shell and Tube Heat Exchangers
Engineering, Design and Manufacturing of Shell and Tube Heat Exchangers
The decision to purchase a heat exchanger is usually very complex. SACOME engineers are ready to analyze the most unusual requirements, by using the latest design software tools and more than 6.000 references all over the world, that being made into our Know-How.
Since 1998 we are official member of HTRI (Heat Transfer Research, Inc.) which gives us direct access to the latest software trends in the field of heat treatment. This fact allows us to have a wide capacity of technical answer in the calculation and design of our tubular heat exchangers & shell and tube heat exchangers.
Throughout our Organization, we offer a special dedication to each of the projects and carefully study the designs of our tubular heat exchangers and shell & tube heat exchangers, in order to offer all our clients fully design solutions totally adapted to the project and customized manufacturing. We guarantee the quality of our heat exchangers and their reliability in the application processes.
Our modern software allows us to have a wide answering capability in a very short time. SACOME studies carefully every application to manufacture our heat exchangers according to a perfect engineering and design in order to offer the most suitable heat exchangers for our customer’s projects.
Advantages of Tubular Heat Exchangers
Within the different geometries of heat exchangers present in the market as plate and gaskets, welded plates, spiral or scraped surface heat exchangers, among others, the tubular geometry is one of the most traditionally used.
The main advantages of tubular heat exchangers are as follow:
- Low maintenance cost
- High working pressure
- High working temperature
- Processing of particulate or fibre products
- Easy inspection and disassembly
- High security in aseptic processes
- Easy to enlarge
For more information, please read our technical article Advantages of tubular heat exchangers.
Corrugated Tube Heat Exchangers
SACOME has its own corrugation technology for the manufacturing of corrugated tube. A corrugated tube is a pipe with a helical groove obtained from a plain tube by cold forming. The number of starts of the helix can be changed as well as the angle to optimize the heat transfer and performance.
Furthermore, the mechanical properties of the original plain tube are not reduced, being this recognized by TÜV. (Independent German certification company worldwide recognized).
For more information, please read our technical article Advantages of corrugated tube heat exchangers.
Tubular Heat Exchangers Calculation
A heat exchanger is an energy exchange system (in the form of heat) between a hot and a cold fluid. The critical issue when designing the heat exchanger is the determining of the thermal exchange coefficients reliably and accurately.
The knowledge of the thermal properties (both for the product and the service side) is a requisite for the calcultation of the heat exchanger: density, specific heat, conductivity and viscosity. It is generally interesting for the designer to know the variation of these properties at different temperatures within the working range.
However, in the Food Industry, this information takes a special relevance: the viscosity of the food fluids can abruptly change with the temperature (even more for low temperatures), being common that the product has a non-Newtonian behaviour, in which the viscosity depends also on the process velocity through the tubular heat exchanger. Therefore, a suitable modelling of the thermal properties is the basis for an optimal heat exchanger calculation.
For more information, please read our technical article How to calculate a heat exchanger.
Tubular Heat Exchangers Design
To design a heat exchanger, it is necessary to have certain data, such as the process flow rate, the temperature and the physical properties of products.
Therefore, the main process data to design a shell and tube heat exchanger are the flows, both product flow and service flow, as well as the inlet temperature and outlet temperature. These parameters should verify the principle of conservation of energy.
Other process data that may be important depending on the application are the inlet pressure, the maximum admissible pressure drop or flow rate.
For more information, please read our technical article How to design a heat exchanger.
Shell and Tube Heat Exchangers
Sanitary Heat Exchangers
Heat exchanger with optimized designs to favor a good CIP (Clean In Place) cleaning of the product channel, guaranteeing the best finishes and the drainability of the equipment.
Pharma Heat Exchangers
Heat exchangers designed in accordance with the recommendations set by the FDA. The finished meet the highest standards, with certified roughness if required. The design ensures drainability and product recovery.
Industrial Heat Exchangers
Heat exchangers designed both thermally and mechanically to ensure long life and high reliability.
Heat Exchangers Technical Documentation
The importance of rheology in the design of any processing plant is crucial since the sizing of many of the elements composing it is very dependent on this “resistance”, also taking special relevance with food products: heat exchangers, pipes, valves, pumps, mixers, etc.
To design a heat exchanger it is necessary to have certain data, such as the process flow rate, the temperature and the physical properties of products.
Hairpin heat exchangers have a more efficient and economical design compared to a multiple pass heat exchanger when the process requires a temperature crossing between the cold and hot fluid.