Heat Exchangers

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Heat Exchangers


The term air-cooled heat exchanger is initially a confusing one. Aren’t we trying to heat the air? Yes, but to add heat to the air we must cool the internal medium, be it steam, hot water or oil, and this is how the term arises. Today to improve efficiency and minimise waste, there is a heavy focus on existing or potential heat generation or recovery process.

If this involves the requirement to heat air or a gas, and with no mixing of the hot and cold process streams, it is likely that a finned tube air-cooled heat exchanger is required. And here we are uniquely able to provide a solution to your requirements.
 

Heat exchanger types available

 
▪ Air Heaters
▪ Air Coolers
▪ Oil / Water Coolers
 
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History of heat exchangers in NZ


We began constructing carbon steel finned tube heat exchangers in the late 1980’s, for our high temperature kilns, as the timber drying market evolved, there was a shift to lower kiln air temperatures and carbon steels gave way to stainless steels. Since then we have developed considerable expertise and market penetration for finned tube heat exchangers, supplying coils not only for kilns, but for heat plant preheat, process heat recovery and the exacting requirements of the dairy industry.

We have built finned tube heat exchangers ranging from 100KW to over 25MW capacity using our own in-house designed software refined to allow the design of purpose built coils to suit a customer’s requirements, for high pressure hot water, high and low pressure steam and thermal oil, and a variety of air side gases. Designs take into account the specific requirements of the hot and cold process streams. Design also involves the careful selection of heater coil materials, relevant welding procedures, allowances for thermal expansion, provision of coil support, and testing and inspection requirements.

Design


We have developed and refined our own in-house software to allow the design of purpose built coils to suit a customer’s requirements, for high pressure hot water, high and low pressure steam and thermal oil, and a variety of air side gases. Designs take into account the specific requirements of the hot and cold process streams and also involves the careful selection of heater coil materials, relevant welding procedures, allowances for thermal expansion, provision of coil support, and testing and inspection requirements.

We can provide a detailed technical analysis of your process situation, and a payback rationale and include any special transportation and installation requirements and the necessary provisions for maintenance. Our designs are verified by a certified third party when required by code.


 
 
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Materials & Manufacture


All heat exchangers are manufactured from stainless or carbon steel base tube. We can provide advice as to the most suitable base tube and fin type for your application.

All heater coils are manufactured at our workshops to Australasian or ASME codes, and the requirements of the OSH Code of Practice. We supply full documentation with each coil, and weld maps if required, third party inspection (including full internal endoscopic inspection of welds) is provided where necessary.
Features
 
  • We can provide for the necessary piping, valve harnesses, trapping, and control requirements for the heater coils.
  • Design capability to meet specific and customised site requirements.  Often we can retro-fit a new and improved performance heat exchanger into existing locations, thus saving installation costs.
 
Benefits
 
  • Risk reduction as all Windsor heat exchangers are guaranteed for thermal performance, workmanship and materials
  • Proven designs and constantly innovations to meet evolving technology
  • Faster delivery to Australasian customers
  • Local support and service

Applications


▪ Milk powder spray dryers
▪ Timber drying kilns
▪ Exhausted waste heat recovery
▪ Pulp refinery exhaust heat recovery

 
 
 
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Windsor Industrial Products

Need some engineering advice?

Get in touch with windsor
About windsor group

Windsor provides total engineering solutions from concept through to after sales support. With 45 years industry experience, dealing with Windsor you’ll always get a solution oriented approach to handling your project that’s guaranteed to perform.

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Contact us
Wellington - Head Office:
+64 4 232 8080 windsor.sales@windsor.co.nz
 
Auckland - IPSCO Division:
+64 9 262 4474 ipsco.sales@windsor.co.nz
Christchurch - CFS Division:
+64 3 366 1411 sales@cfsfilter.co.nz
 
Windsor Engineering Australia:
+61 3 9541 8600 aust.sales@windsorgroup.com.au