Brazed plate heat exchangers are the ideal solution for these plants thanks to their compactness, high thermal efficiency, and total maintenance-free operation. Compared to traditional shell-and-tube heat exchangers, they offer a series of concrete advantages that make them particularly suitable for modular, high-power density installations in small spaces.

The choice of Tempco
In Tempco hydraulic power plants, brazed plate heat exchangers are custom-sized based on the customer’s operating conditions:

• flow rates
• viscosity
• operating temperature
• heat dissipation duty

The use of copper or nickel-brazed stainless steel heat exchangers ensures high corrosion resistance and long operating life, with consistent thermal performance over time. Their compactness and reliability make them the perfect choice for high-performance systems, where every detail counts to ensure operational continuity and energy savings.

In short, brazed plate heat exchangers maximize thermal transfer efficiency and reduce overall dimensions, simplifying maintenance and improving the reliability of hydraulic power plants.

L'articolo Brazed plate heat exchangers in hydraulic power plants proviene da Tempco Blog.

This specific application for the medical sector requires a precise and controlled cooling of the air temperature within the medical tubing thermoforming line. Rapid and stable cooling allows indeed the final geometry of the tube to be set immediately after forming, ensuring repeatability and consistent quality.

The solution used is an air/water exchanger made of UNI6082 aluminum with a special ElectroFin treatment. It is ideal for medical environments thanks to the corrosion resistance and sanitization of the surfaces guaranteed by the special treatment. This involves a series of steps that include testing and inspection of incoming parts, cleaning and degreasing of production residues, and e-coating in a cathodic epoxy bath. All with complete process traceability.

Integrated into the machine, the heat exchanger works with precisely regulated chilled water, maintaining the air temperature within the range required by the process. Thanks to the precise control of the air temperature in the thermoforming line, the result offered by the solution therefore involves greater stability, reduced waste and repeatable quality of the medical product.

L'articolo Air/water heat exchanger for thermoforming in the medical sector proviene da Tempco Blog.

The choice to use stainless steel for the frame of our T REG HC E temperature control units is strategic, as it specifically meets the most stringent hygiene and durability requirements. This material guarantees excellent corrosion resistance, which is essential in environments requiring frequent cleaning and the use of sanitizing agents. Its smooth, non-porous surface prevents the accumulation of contaminants, making cleaning easier and ensuring superior sanitization, in full compliance with the stringent regulations to which the Pharma and Food sectors are subject.

T REG HC E control units are designed to deliver high-level performance, putting technology at the service of quality. They guarantee operating temperature precision of ±0.5°C thanks to advanced PID electronic control, essential for the stability and repeatability of production processes. Operating within a temperature range of +30° C to +300° C and managing fluids such as pressurized water (130°C) or diathermic oil (180°C or +300°C), they are suitable for a wide range of applications, from reactor heating to thermal control in pasteurization processes. Each component, from high-flow centrifugal pumps to high-efficiency plate heat exchangers, is selected to ensure reliability and consistent performance.

The applications of T REG HC E thermoregulation units are diverse, in addition to the customization options Tempco offers. Whether maintaining precise temperatures in mixing tanks or producing hot water for specific needs, the T REG HC E is the ideal solution. Tempco also offer a wide range of options upon request, allowing each unit to be customized with special pumps, increased cooling capacity, or communication interfaces for seamless integration into the user’s automation systems.

The Tempco T REG HC E stainless steel thermoregulation units are the perfect embodiment of Tempco’s commitment to offering cutting-edge temperature control solutions, combining precision with hygiene and reliability. Contact us to find out how our thermoregulation units can elevate the standards of your production processes in the pharmaceutical and food industries.

L'articolo Precision and hygiene in stainless steel for pharma and food thermoregulation proviene da Tempco Blog.

The photos taken before the replacement intervention show very clearly the state of serious corrosion of the radiator thermal transfer pack fins.

We therefore proceeded to replace and revamp the system, installing thermal exchange batteries with a special ELECTROFIN treatment. The ElectroFin treatment is a special anti-corrosion protective coating that is applied by electrodeposition, which ensures the correct protection of the fin pack from the aggressive agents to which the systems and equipment are exposed in a saline/marine environment.

L'articolo Revamping and corrosion protection of cooling radiators in marine installation proviene da Tempco Blog.

Also in 2023 we have installed a fair number of biogas plants, all equipped complete with chiller, heat exchanger and condensate separator.

All systems are always supplied in full configuration and are delivered ready for installation. Speaking about biogas, of particular interest are therefore the latest applications in the paper mill sector, with the aim of reducing polluting emissions. In fact, paper mills have a high potential for the production of biogas and biomethane, as the production cycle of a paper mill generates large amounts of waste water rich in biodegradable COD (chemical oxygen demand), which lends itself to being treated and valorised for the production of biogas.

L'articolo Chillers, exchangers and separators for biogas treatment proviene da Tempco Blog.

The temperature of the lubricating oil is a fundamental parameter to ensure the correct functioning of turbines in power generation. High temperatures can compromise the viscosity of the oil, reducing its lubrication capacity and increasing component wear. On the other hand, temperatures that are too low can cause condensation and thus accelerate corrosion. Precise temperature control is therefore essential to ensure the life and efficiency of the system.

Tempco offers a wide range of coolers and custom cooling skid systems designed to meet the specific needs of turbines in the power generation sector. The double standby heat exchangers represent an innovative solution in this area: these systems allow the continuous passage of oil through the master exchanger, with a second exchanger if necessary, ensuring constant cooling and avoiding interruptions in power supply .

Interconnect valves are a key element in these Tempco dual systems. These valves regulate the oil flow between the exchangers, ensuring that the passage through the second exchanger occurs when necessary, quickly and effectively.

Operational Benefits:

• Improved reliability: advanced temperature management ensures stable and reliable operation of the turbines.
• Customization: Tempco solutions are custom designed, adapting to the specific needs of the customer.
• Minimal interruption: dual standby exchangers ensure continuous cooling, minimizing the risk of interruptions in energy production.

Solutions with dual standby exchangers for oil cooling in turbines in power generation represent a further advanced solution that demonstrates Tempco’s commitment to innovation and optimization of energy efficiency. Investing in these technologies not only improves operational performances, but also contributes to environmental sustainability in the power generation landscape.

Stay tuned on the latest applications of thermal energy management by subscribing our monthly Tempco Newsletter – Solid Temperature.

L'articolo Double standby exchangers for efficient oil cooling in power generation proviene da Tempco Blog.

CO2 employed as a natural refrigerant gas (R-744) is an excellent alternative to traditional synthetic refrigerants (CFD and HCFC), offering a 0 value of Ozone depletion potential (ODP) and a GWP (Global warming potential) of about 1, far less than that of traditional refrigerants. CO2 has also a very high thermal transfer coeffient, much higher than synthetic refrigerants, is stable and non-toxic, but has to work at very high pressure levels, thus requiring higher standards for the design of refrigeration systems and components. Otherwise, its excellent flow performances allow to significantly reduce the size of compressors and refrigeration equipments, making the overall system more compact.

Furthermore, CO2 is a natural working medium of easy access in the environment, and is also a by-product of many industrial processes and factories, so that refrigeration using CO2 represents an excellent solution for the recovery and recycling of exhaust gas.

Another very important application for high temperature brazed plate exchangers involves fuel cells, using hydrogen which is a optimal candidate for energy of the future as alternative to fossil fuels. Fuel cells are zero emission power generation systems that employ an electrochemical process to obtain electricity and heat from the chemical reaction between hydrogen and oxygen, generating water as by-product. Therefore a totally green and clean power generation solution.

Nowadays there are several and different fuel cells technologies deployed, and brazed plate exchangers are employed in a series of tasks such as pre-heating of air and fuel, cooling of the cell and humidity and vapour management, through energy recovery of the generated heat. All of these applications have in common high temperatures requirements, as well as high corrosion resistance.
In the schemes below, there is a series of examples of brazed plate exchangers applications in different fuel cell related technologies, used in micro-grids, sustainable mobility and for hydrogen production.

Among them there are Solid oxide fuel cells (SOFC) employing exchangers for air pre-heating and heat recovery of thermal energy generated by the oxidation process of hydrogen. In Proton-exchange membrane fuel cells (PEMFC), high temperature brazed plate exchangers are used for heat recovery aimed for water heating. Brazed plate exchangers provide hydrogen pret-heating and exhaust gas heat recovery in trucks using fuel cells, making heavy-transportation sustainable. Finally, brazed plate exchangers are used for ammonia pre-heating in NH3 cracker systems, employed for hydrogen production from NH3 molecules.

Stay updated on the latest applications by subscribing our monthly Tempco Newsletter – Solid Temperature.

L'articolo High temperature brazed plate exchangers in the hydrogen industry and CO2 refrigeration proviene da Tempco Blog.

• Anti-corrosion coating cycles (such as for C5 M environments)
• Stainless steel nameplates and data plates
• Line connections made in AISI 316
• Thermal security coefficients increased (suitable fouling factor rate)
• Earthing systems
• Declaration of conformity for ATEX area installation
• Certifications of materials

These features are referred to the construction and selection of constructive materials of the plate heat exchanger, but also to all the engineering evaluations and the technical documentation required to ensure the exchanger is suitable to cope with the challenging conditions of the harsh industrial environment.

Stay updated on the latest applications by subscribing our monthly Tempco Newsletter – Solid Temperature.

L'articolo Special plate heat exchangers for oil&gas applications proviene da Tempco Blog.

If the fluid employed within the exchanger presents no particular problems in getting in contact with carbon steel, the fluid entering the flange of the exchanger gets then in direct contact with the material. Thereafter, it enters the exchanger and here it gets in contact with the stainless steel of the plates. But very often, it is necessary to avoid the contact of the fluids with components and materials that are prone to oxidation and corrosion. In this case, it is mandatory to avoid any possible contact of the fluid with carbon steel

Plate heat exchangers can have two main connection options, with flanged or threaded connections. Flanged connections make the trick quite easy, in fact it’s sufficient to coat the body in the nozzles area using elastomers, such as nitrile, ethylene-propylene or viton, or using stainless steel AISI 304 or AISI 316. The inner part of the body in the nozzle area is protected as well by this lining. The gasket of the first plate gets then in contact with the circular ring of this lining, so that the fluid flowing through the body enters between the first two plates, never getting in contact with carbon steel. The final plate is a blind plate, so it never gets in contact with carbon steel either, remaining always in contact only with the plates in stainless steel.

Speaking of it, fluids never flow between the first plate and the body, they always enter directly between the first two plates.

On plate heat exchangers with threaded connections, the nozzles – made in stainless steel or using plastic materials in case of aggressive fluids such as sea water or acids – have a sort of counterpart which gets in contact with the gasket, and is held back by the body. So that here as well the fluid entering the exchanger gets only in contact with stainless steel and the materials of gaskets. Never getting in contact with carbon steel, paint or other materials that are prone to corrosion.

Finally, the problem doesn’t even exist in plate heat exchangers for food and beverage applications, where hygienic requirements force to employ full stainless steel executions.

Stay updated on the latest applications by subscribing our monthly Tempco Newsletter – Solid Temperature.

L'articolo Fluids and carbon steel in plate heat exchangers proviene da Tempco Blog.

In fact the order came from an important constructor of anodic oxidation plants which operates on the US market through a local facility. The customer is realizing a plant for a main aircrafts manufacturer. For the thermostatation of the treatment tanks and the galvanic baths, the constructor decided during the project of the plant to substitute classic coil exchangers with TCOIL plates.

The final user has indeed the need to treat big parts and components, so that it was necessary to have the whole input section of the tanks available to insert the pieces. The solution using TCOIL plates offers the advantage to have a smaller and thinner thermal exchange system compared to bulky tube/coil exchangers.

We’ve realized 20 TCOIL plates of different sizes, taking further advantage of the great flexibility typically offered by dimple jacket exchangers to adapt the thermostatation systems to existing and yet designed tanks. The plates are fed with over heated water for the heating step, while refrigerated water is employed for the cooling cycle.

Construction material is AISI 316L with augmented thickness, in order to ensure resistance to the harsh working environment in which the dimple jacket immersion exchangers are aimed to be used, in presence of sulphuric acid within the electro-galvanic baths.

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L'articolo TCOIL plate exchangers in galvanic baths proviene da Tempco Blog.