POLYMERIC HEAT EXCHANGERS

The polymeric material used for the heat exchanger cartridge is suitable for a wide range of aggressive process streams. This advantage allows WINDSOR to utilize large surface areas even in extremely hostile environments. The direct benefit of the ability to use large surface areas is the reduction of both power consumption and capital cost. Additionally, the larger surface area and reduced pressure ratio make it possible to use a simple low-speed fan instead of a complex compressor, which further reduces the capital, operational, and maintenance costs


Advantages of Polymer Heat Exchanger

1. Large heat transfer surface areas can be used, which leads to the lowest possible energy consumption.
2. The system is particularly well suited for MVR (Mechanical Vapour Recompression), which is the most energy efficient system of evaporation.
3. Corrosion is completely avoided so it can be operated even at very low pH and at high chloride concentrations.
4. Scaling problems are considerably reduced because the polymeric surface is repellent to impurities and it is flexible. Hard scale will fall off as a result of the continuous movement of the element. Washing, whenever needed, is a simple operation.
5. Thanks to the low pressure drop needed, a simplified lower speed fan-type vapour compressor can be used.

Efficiency of 0.04mm thick polymer is equivalent to Efficiency of 1,2 mm thick Metal like stainless steel.

Section of heat transfer element

The Windsor system operates most efficiently in waste streams where the total dissolved solids (TDS) content is relatively low. The low design temperature differential means that the maximum boiling point elevation (BPE) of the concentrated liquid must also remain low. In most applications, the maximum practical TDS of the incoming stream is 5%. Figure 5 illustrates the amount of clean condensate removed from the waste effluent stream at various TDS.

WINDSOR's evaporation technique works in exactly the same way as conventional MVR evaporators, but with a lower temperature difference. The real ingenuity lies in materials of construction and system design resulting in the following advantages :

1. WINDSOR's system utilizes large heat surface areas and consumes far less energy per unit of distillate produced than typical conventional solutions.
2. Large heat transfer surface areas are inexpensive to build because the high-tech polymeric material costs only a fraction of metallic surfaces and the production of the heat transfer elements is highly efficient thanks to a new continuous
   production method developed by WINDSOR. This means lower component replacement costs
3. Large heat transfer surface area and low pressure operation enable the use of fan type compressors and correspondingly low energy consumption.
4. While in operation the MVR configuration requires no steam nor cooling water. Result: much lower power and operating costs than with conventional evaporators.
5. For start up purposes steam is needed, but if not available, also electrical preheating is possible.
6. Scaling and fouling on a flexible, easily maintainable plastic surfaces can be much lower than conventional rigid surfaces.
7. Due to non-metallic surfaces, WINDSOR's solution can even be used in heavily corrosive environments reducing the need for expensive, exotic metallic materials.
8. A low speed fan used in conjunction with plastic heat exchanger surface provide a system with extremely low noise pressure levels; typically less than <55dB (A) at 10 meters.
   

Industrial processes can now use direct Evaporation and Recycling of all their wastewater with the lowest Operational Costs. Industries now can bypass many steps which have previously been troublesome to operate and which have occupied huge land spaces.

With WINDSOR Evaporation Technology the whole treatment concept can become a single step operation.