Transcript B9 Guidance Document

B26
The AsyMatrix Condenser
for Heat Pumps
Powerful, just smaller
B26 – AsyMatrix Condenser for Heat Pumps
Powerful, just smaller
The asymmetric B26 BPHE is a high performance
condenser with a capacity range of up to 40 kW.
The combination of high performance, low internal
volume and a smaller-than-expected footprint makes
this BPHE truly unique on the market.
The small size facilitates the design of compact systems
and the asymmetric channels allows the refrigerant
hold-up volume to be reduced with up to 50%,
compared to comparable products.
The B26 is the perfect choice for ground source and
reversible air to water heat pumps where efficiency,
compactness and sustainability is important.
B26 allows for smaller and lighter heat pump system in the
capacity range 5-40kW
R410A – Strong market trend with new compressors
R407C – Common today but not in new projects
525 – 530 mm
376 mm
<400 mm
Compressor
Symmetric Technology
B26
SWEP AsyMatrix – Optimized
Asymmetry
®
Improved heat transfer
– Increases system performance, higher COP
Reduced dimensions
– More compact system, smaller footprint
Lower pressure losses
– Less energy consumption, smaller pump size
Smaller hold-up volume
– Less refrigerant costs, lower CO2 footprint
B26 Features & Benefits
Smaller than expected
Optimized performance
AsyMatrix
Technology
• 150 mm shorter than comparable symmetric BPHE
• Up to 50% lower internal volume
• Permits a compact system design
• High efficiency in a wide capacity range (5-40kW)
• Low water pressure drop, < 10kPa
• Tested and verified for R410A & R407C
• Optimized asymmetric plate geometry
• High turbulence pattern, improved heat transfer and reduced
risk of fouling, scaling and freezing
Conventional
BPHE
AsyMatrix® BPHE
• Symmetric pattern - Generic
• Side 1 = Side 2
• Tailored pattern - Optimized
• Side 1 ≠ Side 2
Improved heat transfer – increasing system thermal performance
Lower pressure loss – reducing pump work
Improved mechanical strength – stronger units
Greatly reduced dimensions – allowing for smaller system solutions
Lower hold up volume – reducing refrigerant costs
Asymmetric – in every way
Gas cooling
area
Gas cooling area with low dP
to facilitate desuperheating of
hot gas
Asymmetric
condensing
area
Highly asymmetric area
optimized for efficient
condensing operation
Sub cooling area
Sub cooling area with increased
volume for better liquid holdup
Read more about the B26A on www.swep.net/b26
Learn more about SWEP’s AsyMatrix® technology on www.swep.net/asymatrix
Learn more about SWEP’s environmentally sustainable products and solutions on
www.swep.net/green
B26 Specifications
Capacity range
Target refrigerants
• 5-40kw
• R410A & R407C
Measurements
• 376 x 119 x (10+1.63)xNoP mm
Internal Volume
• Side 1: 0.044 dm3 Side 2: 0.066 dm3
Max flow H2O
Max NoP
Standard Connection size
Port holes diameter
Material
Design pressure (PED)
3rd party approvals
• 11.5 m3/h
• 160
• Solder ¼” – 1 1/8” Threaded: 1”
• F2&F4 Ø27mm, F1 Ø18 or Ø27mm, F3 Ø18mm
• 316 and 304
• Side 1: 47bar(g)@135°C – test pressure 72 bar.
• Side 2: 16bar(g)@90°C – test pressure 23 bar
• PED, UL
Subcooling, keep it low!
•
Subcooling is a very inefficient way of heat transfer
•
More or less the same heat transfer area is needed in a symmetric and asymmetric
BPHE to reach the high degree of subcooling.
•
Since the B26 is smaller – a larger relative part of the B26 is blocked by the liquid
refrigerant
Liquid reciever functions
•
Temporary storage containers for oil and refrigerant when neither are needed for system operation.
•
Receiver could be a separate component but could also be integrated into the filter-dryer.
•
Most (all) systems is fitted with a filter-dryer that removes moist and particles to avoid:
– Moist – creates sticky sludge with hydrophilic oils (R407C/R410A etc)
– Particles – May obstruct the expansion valve orifice
•
Combining the receiver and filter-dryer into 1 component saves assembly time.
•
It is not cost efficient to use a SWEP BPHE that is optimized for heat transfer as receiver.