Heat-efficient solutions for swimming pools, spas & saunas, and greenhouses

The use of plate heat exchangers for heating pools, spas & saunas, and greenhouses has become common practice, mainly due to the thermodynamic advantages and low cost compared to shell-and-tube technology. A plate heat exchanger can utilize heat from various sources, including district heating, solar-heated water circuit, or geothermal groundwater. It can also use chilled water to remove heat when the application in question must be cooled.

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Choose the right partner

  • Alfa Laval offers compact solutions for reheating and maintaining the temperature of swimming pools of any dimension.
  • Recover heat from low-temperature, geothermal sources for your greenhouse and reduce the risk of fouling with Alfa Laval’s plate technology.
  • Alfa Laval’s AHRI-certified heat exchangers ensure that you recover the maximum amount of heat, increasing the sustainability of your facility.
  • The high flow rate through Alfa Laval’s plate heat exchangers enables self-cleaning, and therefore less maintenance.
  • Our service team has a high capacity and a global outreach to minimize downtime of your application.

Trends in the industry

Swimming pool facilities with spas and saunas are used for both fitness and recreation. In recent years there has been an influx in demand for these types of spaces with growing tourism and health consciousness. Greenhouse technology for food production has also become increasingly popular as climate change adversely affects crops. Both industries are looking to become more sustainable by making the most out of available heat, regardless of the source. Low-carbon heating and cooling is also a crucial priority as the global energy system moves away from fossil fuels as a source of energy. The challenge is making these changes happen, without compromising on performance.

By choosing Alfa Laval, you won’t have to compromise. Our heat exchangers allow a close temperature approach for maximum heat recovery while maintaining a steady temperature in your pool, spa, sauna, or greenhouse. As a company, we are dedicated to enabling the clean energy transition, reducing the carbon footprint of our value chain, and enabling your process to be as energy efficient as possible.

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Swimming pool

Pools require heating to the optimum set temperature, comfortable for recreation and fitness. The heat source has traditionally been a hot water boiler but can also be a solar-heated water-circuit, district heating or geothermal groundwater. A heat exchanger should separate the primary heating loop from the secondary, which will contain the pool water. This is both for safety and hygiene purposes. The heat exchanger should be placed before chlorination to reduce corrosion and equipment damage. Alfa Laval caters to pools of various sizes and heat demands with customizable gasketed plate heat exchangers.

In tropical climates, it may be necessary to cool the water temperature of a swimming pool. This can be achieved using chilled water as the other medium.

See how Alfa Laval technology is being used to maintain the temperature in the world’s highest pool.

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Spas & Saunas

Spas and saunas are popular recreational activities that require heating and maintenance of a comfortable set temperature. Regardless of the dimension of your facility, Alfa Laval’s heat exchangers can be tailored to suit your application. The heat source can be geothermal groundwater, or a solar-heated water circuit, among others. A heat exchanger that separates the primary and secondary loops will transfer the thermal energy to the spa/sauna water. The high flow rate of fluid through the heat exchanger enables self-cleaning, reducing the chance of fouling and sediment build-up, allowing your application to run for longer, with minimum downtime.

Find out how a spa in New Zeeland uses Alfa Laval heat exchangers to increase sustainability and maximize heat recovery.

Greenhouses

Whether growing vegetables or flowers, a greenhouse requires the right temperature and humidity for optimum yield. The energy source in the case of heating will often be geothermal groundwater. Heat is transferred from the energy source to the water that is circulated in mild steel piping installed along the soil bed using an Alfa Laval heat exchanger. Depending on the composition of the geothermal water, plate heat exchangers with Titanium plates could be required to minimize the risk of corrosion and reduce sediment build-up and fouling. Low-temperature heat is sufficient, which is efficiently recovered with a gasketed plate heat exchanger from Alfa Laval.

In some climates, the air in the greenhouse may need to be cooled. This is achieved using chilled water as the other medium.

Find out how greenhouses in the Netherlands are using geothermal ground-water for sustainable food production.

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Уплътнени пластинчати топлообменници в рамка

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  • Гъвкави решения, които могат да се адаптират към работния режим, като гарантират най-висока топлинна ефективност
  • Компактните конструкции спестяват място и са лесни за обслужване и поддръжка
  • Решения за намаляване на замърсяването, напреженията и корозията за максимален период на безотказна работа


Научете повече

Полузаварени пластинчати топлообменници

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  • Високоефективна, надеждна технология за приложения, които могат да причинят умора от натиск или топлинна умора
  • Гарантиран дълъг живот на уплътнението благодарение на уникалната уплътнителна система Alfa Laval RefTight™
  • Надеждно решение за предотвратяване на кръстосано замърсяване между средите


Научете повече

Запоени пластинчати топлообменници

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  • Олекотена конструкция с медно запояване с компактни габарити
  • По-голяма топлинна ефективност от сравнимите тръбни многопластови топлообменници
  • Гъвкави опции, подходящи за редица приложения с най-различни видове среди/флуиди
  • Идеални за естествени хладилни агенти и такива с нисък потенциал за глобалното затопляне



Научете повече

Дифузионно споени топлообменници AlfaNova

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  • Конструкция от истинска 100% неръждаема стомана
  • Силна устойчивост на корозия в агресивна среда
  • Не позволява замърсяване с метали в питейна вода и други хигиенни приложения
  • Висока топлинна ефективност и компактни габарити



Научете повече

Консултант? Системен интегратор?

Вие консултант ли сте? Вижте тук! С експертния си опит, придобит в резултат от десетилетия работа в областта на топлообмена, Alfa Laval предлага квалифицираните си ресурси за днешните предизвикателства в областта на отоплението и охлаждането. Открийте отговорите на сложните въпроси за всичко, което ви интересува – от енергийната ефективност до естествените хладилни агенти, заедно с полезните инструменти, които ви улесняват да намерите подходящата технология за вашето приложение.

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Сертифицирани от AHRI топлообменници за надеждна топлинна ефективност

Сертифицирането от Института за климатизация, отопление и охлаждане (AHRI) е единствената глобална независима проверка на топлинната ефективност, която дава гаранция от независима страна за това, че пластинчатият топлообменник ще работи съгласно публикуваните номинални данни от производителя. Alfa Laval предлага сертифицирани от AHRI пластинчати топлообменници с уплътнения, споени пластинчати топлообменници и дифузно-споени пластинчати топлообменници.

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Making efficiency last for decades

A poorly functioning heat exchanger may affect safety, product quality and energy costs. Failure may lead to costly downtime and major losses in production. By regular and proactive maintenance of your gasketed plate heat exchanger performance is preserved and operations kept trouble-free and predictable.

We have the expertise to help you whether you experience a problem today, wish to prevent future issues or want to solve the problem yourself with our online troubleshooter.

See our total service solutions

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Digitalization for energy efficiency

Smart cities and digital intelligence could help cities to make progress toward meeting 70 percent of their Sustainable Development Goals. Digital services can already have a significant impact on heating and cooling systems in cities, making them more sustainable.

Enabling remote monitoring and performing dedicated analytics allow more precise and efficient operation, more informed decision-making, and targeted interventions. The development of more sophisticated and efficient heating and cooling systems is only possible through this digital transformation, which can provide reliable and affordable heating and cooling services to urban areas while reducing greenhouse gas emissions.

The Smart Heat Exchanger

HVAC and the Sustainable cities

Consuming more than two-thirds of the world’s energy, our cities play a crucial role in tackling the climate crisis. A considerable part of cities’ energy consumption is for heating and cooling, which means improving energy efficiency is paramount. Alfa Laval has almost a century of experience in heat transfer and recovery and aims to become carbon neutral by 2030. Let us be your partner in the transformation to a sustainable tomorrow.

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