Alfa Laval hits out at duty “adjustments”

Alfa-Laval-PHESWEDEN: A leading manufacturer has hit out at what it says are common industry practices to “adjust” plate heat exchanger heat duties in order to win contracts.

In a hard-hitting statement, Alfa Laval says it is committed to raising awareness of the problem of manufacturers using large sizing tolerances when designing plate heat exchangers.

In what it sees as the biggest problem facing the plate heat exchanger industry, Alfa Laval says: “For many years it has been a common, albeit hidden, practice in the industry for suppliers of plate heat exchangers to “adjust” or tweak heat duty calculations when sizing the heat exchangers.

“This creates uncertainty about heat exchanger performance and leads to higher operating costs for the end customer,” the Swedish manufacturer claims.

These “adjusted” calculations have become a weapon of deception in the battle to win contracts, Alfa Laval maintains.

“Manufacturers manipulate calculations so that component costs can be minimised and a smaller plate heat exchanger can be offered at an attractive price. However, the result is that end customers get under-dimensioned heat exchangers, leading to higher system-wide energy use, higher operating costs and compromised environmental performance.

“The widespread practice of “recalculation” is a big problem for everyone in the industry. It makes it harder to choose a heat exchanger that will provide the required performance and increases the risk that it will underperform.

Alfa Laval claims the only way to create a level playing field is to adopt the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) certification programme “the only independent third -party organisation that certifies the performance of plate heat exchangers globally”.

“We are convinced that performance certification is an important step in creating a sound plate heat exchanger market and benefits the industry as a whole,” the company says.


Latest news from the world of air conditioning and refrigeration

UK News

1st December, 2016

steve-gowing-home

Stonegrove appoints Gowing

UK: Industrial refrigeration contractor Stonegrove Refrigeration has appointed Steve Gowing as design and project engineer.

1st December, 2016

javac-award-climate-center

Javac achieves Climate Center double

UK: Javac UK, the refrigerant recovery and vacuum pump supplier, has been named as Climate Centers’ Supplier of the Year for the second year running.

28th November, 2016

kevin-munson-home

Ruskin renamed Swegon Air Management

UK: Ruskin Air Management has been renamed Swegon Air Management following its acquisition by the Swedish manufacturer Swegon.

25th November, 2016

swep-tentlingen

SWEP to close Swiss plant

SWEDEN: Heat exchanger manufacturer SWEP is to close its manufacturing plant in Tentlingen, Switzerland, moving production to factories in Slovakia and Sweden.

World News

3rd December, 2016

daikin-czech-rep

Daikin Plzen plant is BES 6001 certified

BELGIUM: Daikin Europe’s factory in the Czech Republic has joined the group’s factory in Ostend by becoming certified to the BRE’s responsible sourcing standard.

3rd December, 2016

young-buskirk-chairmans-awards

AHRI rises to chairman’s challenge

USA: Parker Hannifin and Daikin were the big winners in a unique competition designed to raise the level of awareness of the HVACR industry both in school and government.

3rd December, 2016

aircon-teknik

Beijer Ref merges Danish businesses

DENMARK: Refrigeration wholesaler Beijer Ref has merged two of its Danish companies to form Aircon Teknik A/S.

2nd December, 2016

modine-coils

Luvata HTS merged into Modine coil division

USA: The Luvata Heat Transfer Solutions business is to be amalgamated with Modine Coils into a new Modine Commercial and Industrial Solutions division.

JOIN OUR NEWSLETTER
Leave A Comment