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
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.
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.
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.
効率化への転換
アルファ・ラバルのプレート式熱交換器は、蒸発器と同じ小さなLMTD(対数平均温度差)で運転することができます。この効率が液柱や不正確な圧力損失によって失われないようにするために、弊社はUターンセパレータを開発しました。このモジュールは、他のどのソリューションよりも垂直方向の上昇が少なく、寸法も小さいため、効果的でコンパクトな設置プロセスが可能です。さらに、すべてのアンモニア接続が同じ側にまとめられているため、モジュールを壁の近くやメインスキッドの外周に設置することができます。
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.
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.
AlfaNova
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.
Selected industrial heat pump cases
Odense, Denmark
The heat pumps at Ejby Mølle can supply a total of 20 MW of heat and also lead to a reduction of CO2 and other greenhouse gases of 128,000 tonnes of CO2 equivalents over 20 years. >> Read more about the installation of heat pumps at wastewater treatment plants.
Fenland, UK
The heat pump installation consists of four ammonia* heat pumps installed in parallel, totally delivering the 33 MW of thermal heating. Alfa Laval supplied 14 semi-welded plate heat exchangers of T20BW-type as condensers and evaporators. >> read more about the sustainable greenhouse complex powered through a combination of industrial heat pumps and CHP.
Odense, Danmark
Alfa Laval is supplying the evaporators, condensers, subcoolers and oil coolers to the heat pumps. The impact of the facility’s heat recovery infrastructure will help recover 100,000 MWh of energy per year – enough to warm some 7,000 homes. >>read more about waste heat from the leading social media giant's data centre.
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
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.
EHPA
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
IIAR
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
数十年にわたる効率性の維持
機能不全の熱交換器は、安全性、製品品質、およびエネルギーコストに影響を与える可能性があります。故障は、コストのかかるダウンタイムや生産の大幅な損失につながる可能性があります。ガスケット式プレート熱交換器を定期的かつ積極的にメンテナンスすることで、性能が維持され、運用はトラブルフリーで予測可能に保たれます。
現在問題を経験している場合でも、将来の問題を予防したい場合でも、またはオンライントラブルシューターを使用して自分で問題を解決したい場合でも、私たちはお手伝いできる専門知識を持っています。
加熱・冷却技術のお役立ち情報サイト
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。
