Applications

SWEP’s E-type BPHEs have been optimized for high-efficiency water-to-water heat transfer in systems with low pressures and moderate temperatures. Offering the best heat transfer and compactness for both condensing and non-condensing boilers, they are designed to meet customers’ specific requirements for the large-scale production of gas boilers.

E-type is one of the most efficient BPHE on the market today, with almost all the material contributing to heat transfer. The unit can be equipped with connections for various pipe fittings, or stud bolts for mounting on a hydraulic block.

SWEP heat exchangers work efficiently with the components of a heat pump system to use renewable energy absorbed from the ground or ambient air to produce hot water for heating and domestic hot water. The flexibility of SWEP’s heat exchangers allows their use in reversible systems where they can also be used as cooling systems. They manage very close temperature ranges to reduce the energy required for the compressor’s operation in order to increase the solution’s coefficient of performance.

SWEP’s high-efficiency BPHE condensers can be equipped with a distribution system to improve performance and reduce the risk of freezing when they are operating as evaporators.

To increase efficiency in AtW heat pumps, some compressors are equipped with an economizer port. The economizer function cools the compressor and increases the sub-cooling of the liquid refrigerant. SWEP has a standard economizer selection for Emerson Copeland EVI compressors.

Thanks to the small CO2 footprint, SWEP models are ideal for intelligent solar heating systems.

Solar heating has obvious economic and ecological advantages, as the energy provided is free and renewable. Carefully designed, SWEP heat exchangers offer reliability, efficiency and minimal operating costs.

The high thermal efficiency of SWEP BPHEs maximizes the yield of solar energy while providing a safety barrier.

The high efficiency and fast response time of our BPHEs give instantaneous access to hot water. The hot water is not stored in a tank but produced only when needed, so there is no risk of Legionella bacterial growth.

SWEP high-molybdenum BPHEs are resistant to the potentially corrosive pool water and separate it from vulnerable system components.

The purpose of a chiller is to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle. The evaporator and the condenser are essential parts in a vapor-compression cycle. SWEP offers highly efficient evaporators and condensers with dedicated ranges for R410A, R134a, and R407C. These ranges have been thoroughly tested and verified in SWEP’s in-house laboratory.

SWEP AsyMatrix plate pattern concept enables an asymmetric channel configuration. AsyMatrix for evaporators and condensers results in high thermal performance, lower pressure drop on the water side and a reduced refrigerant charge. All contributing to more environmentally friendly air conditioning solutions.

In addition to evaporators and condensers, SWEP offers a wide range of other heat exchanger solutions for vapor-compression chillers:

• Economizers
• Heat recovery (de-superheaters)
• Oil coolers
• Sub-coolers

SWEP brazed plate heat exchangers (BPHEs) offer a wide range of capacities for district heating systems, along with many advantages over the shell & tube and gasket plate heat exchangers that have been used in the past:

• Compact – Easy to fit into smaller, poorly accessible places, which offers big savings in installation time and costs.
• Reliable – SWEP BPHEs are sturdy and reliable, being hermetic, compact, and helium-tested at the factory.
• Minimal maintenance – SWEP BPHEs have no gaskets that need replacing, and are normally self-cleaning, thanks to highly turbulent flows. In applications with a high risk of fouling or scaling, cleaning in place is easy without disassembly. This saves labor costs and production downtime, and hence gives a lower life-cycle cost.
• Smaller carbon footprint – SWEP’s BPHEs are simply the most energy-efficient way to transfer heat from one medium to another. Almost 100% of their BPHEs’ material is used to transfer heat, making them cost-effective and more environmentally sustainable.

In supermarkets, cooling is required for refrigerated display cases and freezers. SWEP brazed plate heat exchangers successfully perform several functions in supermarket refrigeration systems, such as: evaporators, condensers, economizers and subcoolers.

During the last decade we have seen, in parallel with traditional DX systems, the constant expansion of new technologies with CO₂ as the refrigerant and as the secondary coolant media. Supermarket systems are divided into two temperature levels – MT și LT:

• MT: display cabinets and cold rooms at +6 to 0 °C
• LT: display cabinets and cold rooms at -18 to -24 °C

SWEP Brazed plate heat exchangers are used in container cooling systems in which frozen or chilled products are transported. Their heat exchangers are normally used as economizers to improve the system’s efficiency.

Two kinds of transport are involved:

• Marine containers
• Trucks and trailers

In these refrigerated systems, the main challenge is the units’ large operational envelope. The required temperature is normally between +7 and -24 °C.

The reason for installing these BPHEs is related to the increased system efficiency that can be achieved with these additional features – an increase that justifies the increased circuit complexity. The refrigerants involved are R134a and R404A. Interesting case studies and prototypes are currently ongoing using CO₂ to substitute synthetic refrigerants. In these cases, a transcritical cycle is considered.

Condensation is a common problem in compressed air systems. It can cause corrosion and considerable damage to the equipment that uses the air. Compressed air must always be dried if it is to be used in any kind of machinery. SWEP can provide the solution, with refrigeration air dryers that prevent the condensation of water in pneumatic systems.
The air dryer deals with the moisture in the saturated air at the outlet pressure and temperature. Some of the original moisture has already condensed during compression, and separated in the compressor.

SWEP’s unique brazed plate heat exchanger (BPHE) solutions include their ADWIS units and dual-over-two-pass (D2P) configurations. End-user applications include water-to-water cooling, compressor cooling, heat recovery and condensers.

Brazed plate heat exchangers (BPHEs) are used for applications such as water-to-water heating and cooling, compressor cooling, heat recovery, and condensers.

End-user applications include industries that use pneumatics or vacuum technologies. Vacuum pumps are used in many industrial and scientific processes, including composite plastic molding processes.

In the process industry, SWEP brazed plate heat exchangers are used for heating, cooling, and various steam applications. Their solutions include the high-capacity B649 and B633 units and their 100% stainless steel models.

SWEP BPHEs operate in plant equipment and dedicated auxiliary systems in process industries such as pharmaceutics, food & beverage, chemical, petrochemical, polymer and pulp & paper.