Industrial heat pumps

Alfa Laval innovates compact plate heat exchanger technology for heat pump systems. These are installed to recover heat from industrial processes but also recover low-grade heat from data centers and natural heat sources like sea, river, sewage, or groundwater. We work closely with leading local installers and system builders from across the globe, supplying both standard and customized heat exchanger solutions. We focus largely, but not exclusively, on applications that employ natural refrigerants.

We have experience working with both electrically driven as well as thermally driven heat pumps type so do not hesitate to contact Alfa Laval for advice regarding appropriate heat exchanger selection

ATMO 2021 concept image
banner industrial heat pump 640
Copenhagan city image 640
Alfa Laval walks the talk - An ammonia heat pump absorbs the waste heat from the cooling system of the plate pressing operation in the Alfa Laval factory. Benefitting plate heat exchangers, it contains an ammonia charge of only 40 kg for a capacity of 827 kW with a COP of 7. >> Read more about the case.
A heat pump equipped with efficient Alfa Laval plate heat exchangers enables waste heat recovery from municipal wastewater and seawater, supplying a district heating network that serves 1100 homes in Nyhavn, Copenhagen with sustainable heat. The result is major energy savings and emissions reductions.

The keys to sustainable heating with electrically driven industrial heat pumps

  • Think through what temperature you really need the heat pump to deliver. A level above 100 C reaches normally only 50% of the efficiency of a heat pump delivering below 90 C.
  • Choosing a system with natural refrigerant such as ammonia, carbon dioxide, or hydrocarbons will assure the investment stays future proof. Ammonia normally allows for the highest energy efficiency.
  • Assure the system is optimized with modern technology including plate heat exchangers allowing for low refrigerant charge and a close efficient temperature approach which shortens the system’s payback time.
  • Choose a reliable supplier of plate heat exchangers. Alfa Laval latest developments are focusing further efficiency gains in heat pump applications.

ammonia-heat-pump -under-construction.jpg

Above is an ammonia heat pump under construction including semi-welded plate heat exchangers as flooded evaporator, desuperheater, condenser and sub cooler. 

Ready to learn more about how to become more sustainable using industrial heat pumps with efficient plate heat exchangers? It normally pays off boosting energy efficiency and saving you money. 

Contact us today


RefTight™ sealing system

High performance gasket sealing, for high-pressure duties. The RefTight™ sealing system in our semi-welded plate heat exchangers enables enhanced, long-term performance in heat pump applications with high pressures and temperatures. The weld is positioned outside the separate ring-gasket groove, which ensures reliable sealing, extends the lifetime of the gasket, and prolongs service intervals.

Integrated subcooling

Heat pumps with high-efficiency design can result in substantial economic savings. Integrating subcooling and de-superheating into the condenser of the plate heat exchanger makes it possible to improve energy efficiency without the need for extra pipework or additional components.





Advanced solutions for industrial heat pumps


Semi-welded plate heat exchangers

Our compact semi-welded plate heat exchangers enable greater efficiency and reliability in industrial heat pump applications. Alfa Laval semi-welded heat exchangers are especially the choice for ammonia heat pumps. These exchangers reduce the ammonia charge and risk of leakage with their proven RefTight™ sealing system. Available with corrosion-resistant material for sea/river water heat recovery.

Learn more

Alfa Laval brazed plate heat exchangers

Brazed plate heat exchangers

Our copper-brazed plate heat exchangers are compact, efficient, and the standard type of heat exchangers for evaporating, and condensing in commercial and residential heat pumps. They work with most types of environmentally friendly, low-GWP refrigerants, including important natural refrigerants, such as CO2 and hydrocarbons. Each unit is designed with a range of unique features that ensure superior thermal performance and reliability.

Learn more



Most plate heat exchangers used in commercial or small-capacity industrial heat pumps are brazed with copper. While suitable for many applications, copper reacts negatively with ammonia, an important natural refrigerant. Built with our unique fusion-bonding method, AlfaNova offers the market’s only 100% stainless steel plate heat exchanger. It is a compact, efficient solution for cooling very clean, sensitive, liquids, which takes advantage of ammonia’s low-GWP potential.

Learn more


Selected industrial heat pump cases


Broager Danmark

Alfa Laval semi-welded PHEs play as evaporators capturing 250 m deep groundwater at 9°C to deliver a district heating supply of hot water at 70°C heat. Capacity in this case is 18,000 MWh yearly with a COP of 4.0 since 2016


Viborg Danmark

In Bjerringbo, Alfa Laval semi-welded PHEs play as ammonia evaporators to recover excess heat to supply the district heating and cooling network. Capacity in this case is 13,500 MWh yearly with a COP of 4.6 since 2016.


Haderslev, Denmark

At Fuglsang Brewery malt house, Alfa Laval semi-welded PHEs in the condenser unit recover excess heat to deliver heating of hot side media from 45° to 70° C. Capacity in this case is 7.1 MW with a COP of 4.0.


Committed to industry collaboration



Eurammon is an association of companies, institutions and individuals who share a common goal: to encourage a sustainable approach to refrigeration and heat pump engineering. Since its inception in 1996, Eurammon has advocated the use of natural refrigerants. Alfa Laval is a founding member of the association.

Learn more



Alfa Laval is a member of The European Heat Pump Association (EHPA) which is the voice of the European heat pump sector in Brussels. The vision of EHPA is that in a fully decarbonized Europe, heat pump technologies are the number one heating and cooling solution. They are a central part of a renewable, sustainable and smart energy system

Learn more



IAR is an American technical member organization with industry representation from all facets of the natural refrigeration and heat pump community, including manufacturers, engineers, contractors, end-users, academics, scientists, trainers, and more. IIAR is a leading advocate for the safe, reliable and efficient use of ammonia and other natural refrigerants

Learn more







アルファ・ラバルは、長年にわたる熱交換の経験やノウハウをもとに、お客様の加熱・冷却に関する課題に対して役に立つ情報やツールを提供しています。 省エネ化の取り組みから自然冷媒の使用まで、難しい熱交換の質問にお答えします。さらに、用途に適した熱交換器の種類を簡単に検索できるツールも用意しています。

heating cooling-hub-vignette-2021



ALF0739 sustainable-cities hero 640x3.

Contact us

上記の情報は、 当社のプライバシーポリシーに従って保存および処理されます。