GlobalSpec has asked its users about the latest design trends and features related to Heat Exchangers. They have also shared their product applications and tips on how to buy and use these products.
See the entire survey


Q:
What new technologies are influencing heat exchanger design?
112 answers
Answers:

I have a good impression about Compabloc welded plate heat exchanger from Alfa Laval. The larger models are laser welded. This results in a unit with less stress, improves reliability, extends the working life...and is a shorter and more flexible delivery time !

~GlobalSpec Registered User
There was some innovative developments through the mid 00's but it appears there is little new technology in the last 5 years in heat exchanger design, and operation. Internal design innovations in shell and tube exchangers in the mid 00's increased efficiencies, but these innovations are only just making it into commercial operations in Australia, however there appears much greater uptake in the rest of the world. Plate heat exchangers do not appear to have had much development in the last 25 years.
~GlobalSpec Registered User

Mostly computational analysis-design. Makes possible more complex arrangements & optimizations that would not otherwise be possible or would be too cumbersome. New welding technologies have also been helpful.

~GlobalSpec Registered User

Overall Energy efficiency, Compactness, Convenience of maintenance, Light weight and life, usage of SS material as against MS etc. Lower operation cost with a challenge of lower capital cost as well.

~GlobalSpec Registered User
Anything that varies from the basic shell and tube, air cooled hx design. Helical baffles have been starting to make an impact on the industry. Plate and Frame exchangers, welded plate and frame.
~GlobalSpec Registered User

Corrosion / deposit is most important factor inside the HX.  Any technology which can avoid/minimise the tube/shell side corrosion with maximum heat transfer rate is most suitable.

~GlobalSpec Registered User

Spirals and other inserts, combined S&T and plate exchangers, special extended areas for air-cooled exchangers, plate exchanger suitability in high temp/pressure applications

~GlobalSpec Registered User

1. Composite tube sheet material for corrosion prevention. 2. Self fin design for tubes 3. Plate exchangers for more heat transfer per unit area

~GlobalSpec Registered User

Not new, but Geo-thermal has renewed interest. There is global interest in small/compact heat exchangers, especially of the microchannel types.

~GlobalSpec Registered User
Geo-thermal heating and Water to Air WSHP's are having a big influence in how heat exchangers are constructed and used in the HVAC industries
~GlobalSpec Registered User
Modulating gas controls that provide very low gas flow rates. The efficiency rises and condensate disposal becomes an issue.
~GlobalSpec Registered User
Automotive microchannel style transitioning to non-automotive applications where size, weight, and durability are paramount.
~GlobalSpec Registered User

Improve heat transfer rate by thick layer system and scrapped surface or direct contact with heat medium and food product.

~GlobalSpec Registered User
We are using ASME SECTION VIII DIV 1 & 2, API-660, & with the latest heat exchanger design software (PV-ELITE, CODECALC)
~GlobalSpec Registered User
1.application of renewable energy in power plants-utilization of biomass fuels in boilers 2.Food processing industries
~GlobalSpec Registered User

Noise reduction governed by authorities forcing us to change from air cooled electrical motors changed to water cooled.

~GlobalSpec Registered User
Laser guided welding for plate heat exchangers. New refrigerants that are more environmentally friendly.
~GlobalSpec Registered User
Welding tech, Extended Surfaces, New Tubular options, New corrugated patrons in Plate heat exchangers
~GlobalSpec Registered User

Plate design, thermal conductive materials, maintenance and serviceability, tubing design, flow design

~GlobalSpec Registered User
Can support CO2 refrigerant pressure Can tolerate sulphur acid from boiler exhaust condensation.
~GlobalSpec Registered User

The more efficiency, that means less dim and less weight, more knowledge of the product

~GlobalSpec Registered User
CAD, automated, dead volume free, sterile sample taking devices by www.bbi-biotech.com
~GlobalSpec Registered User
I used a step by step technology to a Thermal and Hydraulic design of Heat exchanger .
~GlobalSpec Registered User
The advancement in Electronic design and tolerances. The need for HYBRID designs
~GlobalSpec Registered User
Fan blade design as it relates to air flow through an air over oil heat exchanger.
~GlobalSpec Registered User
Research, autocard, best in class design, courses and conferences, books etc.
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Clad metals - special machining of adsorbing surface - welding technologies.

~GlobalSpec Registered User
New corrosion inhibitors for coating outside of radiators/ heat exchangers.
~GlobalSpec Registered User
Boiling liquids near critical parameters, two-phase thermosyphone systems.
~GlobalSpec Registered User

Plate Frame Heat Exchangers, Brazed Aluminium Heat Exchangers (plate fin),

~GlobalSpec Registered User
Heat transfer material, heat media state forms like gas, liquid and solid.
~GlobalSpec Registered User
Micro-machining, precision extrusions, radius or conical shaped material
~GlobalSpec Registered User

Counter flow inside the tube exchangers, high efficiency, new materials.

~GlobalSpec Registered User
My design would most influence heat exchanger design for air or water.
~GlobalSpec Registered User
Metallurgy for chemical and temperature resistance, and non-fouling.
~GlobalSpec Registered User
1) Composite materials 2) Liquid cooling systems for electronics
~GlobalSpec Registered User
Materials, plate frame design, multiple streams, low maintenance.
~GlobalSpec Registered User
Very thin surface exchange. Or very cheap wave exchanger energy.
~GlobalSpec Registered User
More efficient hydraulic circuit design reduces size of coolers.
~GlobalSpec Registered User
Footprint, larger pressure drop, better approach temperature.
~GlobalSpec Registered User
Materials using on board fresh water to cool refrigeration.
~GlobalSpec Registered User
"Green" manufacturing and operations, unique transfer media.
~GlobalSpec Registered User
Materials developing could improve performance and prices.
~GlobalSpec Registered User
Materials, flow design-computer modeling, build techniques.
~GlobalSpec Registered User
In HVAC applications the plate material is very important.
~GlobalSpec Registered User

Plate heat exchangers, new sealing techniques, new surfaces

~GlobalSpec Registered User
Plate type heat exchanger and other new logic controller.
~GlobalSpec Registered User
Variable speed smart pumps with variable liquid flows.
~GlobalSpec Registered User
I believe that joining technology is having an effect.
~GlobalSpec Registered User
Automatic welding and improved FEM and CFD calculations.
~GlobalSpec Registered User
Solar primary and secondary systems for green energy.
~GlobalSpec Registered User
Development of material for corrosive applications.
~GlobalSpec Registered User
All welded PHEs and corrugated tube heat exchangers.
~GlobalSpec Registered User
DX/water exchangers (vented welded plate frames)
~GlobalSpec Registered User

Renewable energy, bioenergy, Chillers and HVAC

~GlobalSpec Registered User
Tube vibration. Heat Transfer enhancements.
~GlobalSpec Registered User
The materials they used and the design flow.
~GlobalSpec Registered User
Plate type and high pressure heat exchangers.
~GlobalSpec Registered User
New welding technologies and nanotechnology
~GlobalSpec Registered User
Hydrogen fuel cell. Stirling engines.
~GlobalSpec Registered User
Stepping valves and electronic controls.
~GlobalSpec Registered User
Heat transfer efficiency improvements
~GlobalSpec Registered User
Free cooling through Plate and Frame Htx
~GlobalSpec Registered User
Nano-particles & surface treatments
~GlobalSpec Registered User

Plate heat exchangers technology

~GlobalSpec Registered User
Micro Channel and Nano Technology
~GlobalSpec Registered User
Energy recovery application area.
~GlobalSpec Registered User
Plate materials and gasket materials.
~GlobalSpec Registered User
High temperature plate exchangers
~GlobalSpec Registered User
Plastics, titanium and ceramics.
~GlobalSpec Registered User
Turbulators are looking popular.
~GlobalSpec Registered User
NozzlePro, CodeCalc, and NEiFusion
~GlobalSpec Registered User
Plate designs, micro channels
~GlobalSpec Registered User

Micro generation, Gas usage

~GlobalSpec Registered User
Plate and Shell Technologies
~GlobalSpec Registered User
Computational fluid dynamics
~GlobalSpec Registered User
Demand for more efficiency
~GlobalSpec Registered User
Plate-type heat exchangers
~GlobalSpec Registered User
Renewable energies (solar)
~GlobalSpec Registered User
Utrasonic tube inspection
~GlobalSpec Registered User
Compabloc heat exchangers
~GlobalSpec Registered User
Solar panels for home use
~GlobalSpec Registered User
Enhancing heat transfer.
~GlobalSpec Registered User
HVAC waste heat recovery
~GlobalSpec Registered User
Plate and shell design
~GlobalSpec Registered User
Smooth fin technology
~GlobalSpec Registered User
Heat & mass exchanger
~GlobalSpec Registered User
Plate heat exchangers
~GlobalSpec Registered User
Plate heat exchangers
~GlobalSpec Registered User
Dimensions and yield
~GlobalSpec Registered User
Compact Technologies
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Food safety; fouling
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Aluminum treatment
~GlobalSpec Registered User
Cheaper production
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Material selection
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Adsorption systems
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Shell - Tube Type
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Aluminum brazing
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Welded, and size
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Use of polymers

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Nanotechnologies
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Waterjet cutting
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Distric cooling
~GlobalSpec Registered User
New softwares
~GlobalSpec Registered User

Fueling factor

~GlobalSpec Registered User
Brazed plate
~GlobalSpec Registered User
NEMA , ASME
~GlobalSpec Registered User
Plate type
~GlobalSpec Registered User

Brazing

~GlobalSpec Registered User
Halogens
~GlobalSpec Registered User
Solar
~GlobalSpec Registered User
Solar
~GlobalSpec Registered User

Top
Q:
From your perspective, which companies are creating the most innovative heat exchangers?
94 answers
Answers:

Catalytic Products International has one of the most innovative designs on the market with the Floating Tube Heat Exchanger. On one end, the tubes are welded to a tube sheet. On the other end, they pass through the tube sheet and are allowed to expand and contract according to the temperatures each individual tube encounters. This eliminates the issues typically caused by expansion joint technology, such as bent or dropped tubes, failed tube sheets, or ruptured expansion joints. A pressurized air seal prevents any cross-contamination between the shell-side air flow and the outflow side tube sheet.

~GlobalSpec Registered User

From a design standpoint, Fluor has always been on the forefront of new and innovative heat exchangers as the industry demands exchangers to handle more aggressive and severe process services ranging from high pressure, temperature, highly corrosive, large duties and new technologies. The power industry that has started to see more business in the renewables and green energies has demanded a unique set of exchangers that must be designed for the specific processes.

From a manufacture standpoint, Alfa Laval has a different array of innovative heat exchangers when it comes down to non-conventional exchangers. Examples would be their steps in manufacturing larger welded plate exchangers, their Paqinox technology, spiral wound exchangers.

~GlobalSpec Registered User

JORD-Australia : Air Cooled Heat Exchangers Borsig- Germany : High pressure & WHR Exchangers OLMI ; High pressure Heat Exchangers KOCH : Double pipe and special twisted tube Heat exchangers HUDSON : Air Cooled Heat Exchangers. GEA : Air Cooled Heat Exchangers and a host of Finned Tube and other Exchangers. HAMMON : Air Cooled Heat Exchangers. Alfa Laval : Plate Heat Exchangers. Air Liquide : Cryogenic Heat exchangers. Balche-Durr : {ower plant Hea5 Exchangers. SPX : Vacuum Condensers Bronswerk : Special type of Heat Exchangers. Lummus : Heat Exchangers & Air Coolers, Breech Lock Heat Exchangers. Ecodyne : AIr Cooled Heat exchangers Evaporators.

~GlobalSpec Registered User
Honeywell for the Aircraft Engines and Systems division. Coil Mac for their HVAC applications. Plate and frame manufacturers, especially ones that allow easier maintenance.
~GlobalSpec Registered User
Solar Storage Company. Not yet public. Hipex, Thomastown Victoria Australia. Formed tube in tube. Ceramic Fuel Cells Limited, Melbourne Australia. Details restricted by confidentiality agreement.
~GlobalSpec Registered User
1. MultiTherm LLC Malvern, PA 800-225-7440 2. Patterson Industries (Canada) Limited 3. Industrial Heat Transfer, Inc. View Website Coon Valley, WI 608-452-3103
~GlobalSpec Registered User
Tranter (Superchanger is a great unit with the Washboard design), Supermax Shell and Plate units are great when competing with Shell & Tube units
~GlobalSpec Registered User

Alfa Laval - great plate innovations: - a composite of fused graphite and fluoroplastic for plates -double-wall plate -semi-welded plate....

~GlobalSpec Registered User
1. M/s GIE, Bhopal, India 2. M/s Sumitomo, Japan 3. M/s Astra, Italy 4. M/s Oilteknic, Germany 5.M/s Radient Engineers, Pune, India
~GlobalSpec Registered User
EMMEGI heat exchangers are some the best performing air/oil units. They have the best hp removal for their size of any unit sold today.
~GlobalSpec Registered User

No perspective, aware of harmonics etc... I know Honeywell would love to know about my technology for they are doing something similar but are making it too complex.

~GlobalSpec Registered User
Harbin Air conditioning, China. International Coil Ltd, India. Thermofin, Germany. Vahterus, Finland. Super Radiator, USA.
~GlobalSpec Registered User

Alfa Laval, with the SSHE (Scraped Surface Heat Exchanger), and Vicarb with the "Platelec" (electrical plate heat exchanger)

~GlobalSpec Registered User

General Magnaplate's needs are fairly simple, but I think that some of the DIY heat exchangers are interesting.

~GlobalSpec Registered User
FIN TUBE HEAT EXCHANGER, TULSA TEXAS; BROWN FIN TUBE, DUDELANGE, LUXENBOURG; ME ENGINEERING LTD, ENGLAND.
~GlobalSpec Registered User
I mostly have only worked with Dimplex as the company tries to keep unity in the products we buy.
~GlobalSpec Registered User
Plate Fin bundled inside pressure vessels, good performance with adequate robustness.
~GlobalSpec Registered User
I personally prefer the BUDZAR brand. Always good upfront and after the sell support.
~GlobalSpec Registered User

No specific company.  It depends upon the application and specific requirement.

~GlobalSpec Registered User
HTRI ...... as example ............ but i see GLOBAL SPEC is a good example.
~GlobalSpec Registered User
Alfa Laval (have been working with them), SWEP, FUNKE, Tranter, APV, GEA.
~GlobalSpec Registered User
Kaori brand, high corrosion resistant brazed plate heat exchangers.
~GlobalSpec Registered User

We're using plate heat exchanger supplied by Alfa Laval...so far so good.

~GlobalSpec Registered User
From my perspective most are offering pretty standard equipment.
~GlobalSpec Registered User
I'm seeing plate and frames from Sondex that are very efficient.
~GlobalSpec Registered User
In my field: APV, Alfa laval, ITT, Danfoss, Schmidt.
~GlobalSpec Registered User
Heat Exchanger Design, Inc. API Heat Transfer Inc.
~GlobalSpec Registered User
ITT Standard, don't know brands of others I've seen.
~GlobalSpec Registered User
Tranter, with their welded Supermax shell & plate.
~GlobalSpec Registered User
GEI Hamon American coil company GEA Ecoflex
~GlobalSpec Registered User
My one, A.G.C. Application of Gas Combustion
~GlobalSpec Registered User
Tranter, the plate and shell heat exchangers
~GlobalSpec Registered User
Mezzo Technologies Triumph Thermal Systems
~GlobalSpec Registered User
Alcoil's MicroCondenser product line.
~GlobalSpec Registered User
Water coolers for electrical motors.
~GlobalSpec Registered User
API Heat Transfer Inc. Alfa-Laval
~GlobalSpec Registered User
Alfa-laval thermowave thermoflex
~GlobalSpec Registered User
Alfa Laval, Tranter, GEA SONDEX
~GlobalSpec Registered User
Sterling Cycle Heat Exchangers
~GlobalSpec Registered User
Alfa Laval (plate exchangers)
~GlobalSpec Registered User
Mag Tech Tundra air heaters
~GlobalSpec Registered User
Koch ... their twisted tube
~GlobalSpec Registered User
Linde AG Linde Engineering
~GlobalSpec Registered User
Panasonic, Denso, Heatex
~GlobalSpec Registered User
Shell & Plate Exchangers
~GlobalSpec Registered User
API Basco, Norden, Alfa laval
~GlobalSpec Registered User
Lytron, SPP and Parker
~GlobalSpec Registered User
Ohmstead / Steel tech
~GlobalSpec Registered User
Makatek, solel (uvac)
~GlobalSpec Registered User
Tetra-Pak; GEA; Stork
~GlobalSpec Registered User
GEA, FOLWSERVE,..etc
~GlobalSpec Registered User
Sharp, Sanyo, LG, GE
~GlobalSpec Registered User
GEA and Alpha Laval
~GlobalSpec Registered User
Heatco, Beckett Gas
~GlobalSpec Registered User
Steam Plant Systems
~GlobalSpec Registered User
GEA and Alfa Laval
~GlobalSpec Registered User

Standard & flat plate

~GlobalSpec Registered User
Alfa Laval and APV
~GlobalSpec Registered User
LUWA JAPAN.CO.LTD
~GlobalSpec Registered User
SWEPT, ALFA LAVAL
~GlobalSpec Registered User
Chromalox, Grieve
~GlobalSpec Registered User
Step and danfoss
~GlobalSpec Registered User
Tranter, Polaris
~GlobalSpec Registered User
Tranter and ITT
~GlobalSpec Registered User
Sondex, Heatrix
~GlobalSpec Registered User
SWEP,ALFA LAVAL
~GlobalSpec Registered User
ASA HYDRAULICS
~GlobalSpec Registered User
Triangle Tube
~GlobalSpec Registered User
Lovejoy, Inc.
~GlobalSpec Registered User
Cherry Burrel
~GlobalSpec Registered User
Doyle & Roth
~GlobalSpec Registered User
Hisaka Works
~GlobalSpec Registered User
Isothermics
~GlobalSpec Registered User
Innergytech
~GlobalSpec Registered User
Denso, Behr
~GlobalSpec Registered User
Alfa Laval
~GlobalSpec Registered User
Alfa Laval
~GlobalSpec Registered User
Alfa-Laval
~GlobalSpec Registered User
Alfa laval
~GlobalSpec Registered User
Alfa Laval
~GlobalSpec Registered User
Alfa laval
~GlobalSpec Registered User
Alfa Laval
~GlobalSpec Registered User
TEMA INDIA
~GlobalSpec Registered User
Alfa Laval
~GlobalSpec Registered User
Alfa Laval
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Alfa laval
~GlobalSpec Registered User
Lovejoy
~GlobalSpec Registered User
TRANTER
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Hitachi
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Funke,
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Swep
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ITT
~GlobalSpec Registered User
GEA
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TLV
~GlobalSpec Registered User

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