Micro Plate Heat Exchangers

  • Your Advantages

    Brazed Heat Exchangers with Micro Plate™ Technology

    The same model of heat exchanger has been in use for over 40 years, without any significant developments. But now, owing to Danfoss’ latest invention, the Micro Plate™ Heat Exchanger (MPHE), all that is about to change.

    Thanks to a unique plate pattern design, our new MPHEs give you an excellent route to better performance and lower environmental impact. By improving the flow of fluid across the plate and utilization of the surface area, MPHEs enable much better heat transfer.

    The micro plate pattern also allows for greater flexibility in application design. Simply by varying the number, size and placement of dimples on the plate, MPHEs can be adapted to give the optimal heat transfer and minimal pressure drop in a variety of different applications – from district heating to solar heating solutions.

    Combining resource and energy efficiency, MPHEs from Danfoss meet the needs of today’s heating industry like no other heat exchangers can. Take advantage of this exciting innovation and enjoy a whole series of benefits:

     

    • Energy and cost savings
    • Better heat transfer
    • Lower pressure loss
    • More flexible design
    • Longer life time 

     

    Lower CO2 footprint
    MPHEs require fewer plates and therefore less raw material to produce. Low pressure loss reduces the needed pump power.

    Enhanced heat transfer leads to more efficient operation, and a longer life-span reduces waste. All these factors add up to a significantly lower overall CO2 footprint than you get with traditional heat exchanger models.

    Award-winning technology
    In the 2010 AHR Expo Innovation Awards Competition, MPHEs were recognized for their contribution to increased energy efficiency and improved environmental performance. AHR is one of North America‘s most prestigious competitions for airconditioning, heating and refrigeration technologies.

    Gasketed Heat Exchangers with Micro Plate™ Technology

    The Right Choice for Your Business

    The small but perfectly formed XGM 032 and XGM 050 gasketed heat exchanger from Danfoss are the ideal solution to keep your business profitable with superior performance and lower costs, compared to competitors’ models.


    Special features:

    • Enhanced heat transfer performance
    • Compact size (only index 70-75% compared with next best alternatives)
    • 1 frame = 3 plate corrugations = 3 times the performance
    • H, L & M plates are available
    • Thread connection (G1A), with 72 mm porthole distance 
    • Flow rates: Up to 20 m³/h
    • NTU value: 0.5 - 4.0 

    XGM 032 product presentation
    MPHEs Outperform the Competition

    When compared with traditional brazed plate heat exchangers, MPHEs deliver an impressive range of advantages. Depending on the application and the capacities it requires, the new generation of heat exchangers can either significantly enhance heat transfer rate or reduce pressure loss. You choose which makes most sense in your application, One universal benefit is that MPHEs have a longer life time than other heat exchangers.

     

    The pictures below illustrate how:

    Micro Plate Heat Exchangers have a broad, flat brazing surface which adds stability to the construction - on the first image.

    Brazed plate heat exchangers only have a narrow brazing surface where the two ‘peaks’ of the plates touch - on the second image. 

      

    Micro Plate Dimple Pattern

      

    Traditional Fishbone Pattern

     

    The Benefits and Advantages:

    1. Up to 10% enhanced heat transfer
    An ingenious redesign of the plate pattern in MPHEs significantly enhances their performance. The fluid moves across the plate with a relatively uniform velocity. Between the fastest and slowest flowing areas, the difference is only x 3, as opposed to x 10 in older heat exchanger models. This will distribute and mix fluid better and enhance the heat transfer by up to 10%.

    2. Up to 35% lower pressure loss
    Thanks again to the unique plate design, the way that water is distributed inside the MPHE also reduces pressure loss. This means less energy is needed to drive the water round the system and consequently also lowers running costs.

    3. Longer life time
    MPHEs enjoy a longer lifespan than other kinds of heat exchangers. There are several reasons for this. In an MPHE, there are more and bigger brazing points. They are flat and precisely aligned one above the other – all of which means that stress is more evenly distributed across the material and the construction is more robust. With MPHEs, there is also more freedom to position brazing points so they can be further strengthened at critical points. In addition to this, the improved plate design results in an improved flow within the heat exchanger which in turn leads to less fouling and scaling.

      

    Improved flow characteristics
    In an MPHE, the flow around the brazing points is more uniform than in a BPHE, with a ratio between maximum and minimum velocities only one third of that in a BPHE. Furthermore, the flow is optimized for high turbulence and low frictional losses.

      

    Uniform velocity – enhanced heat transfer
    An MPHE allows a more uniform velocity around the brazing points on both sides of the channel plate. The equal distance enable enhanced heat transfer along with a lower pressure drop.

      

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