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Energy and Environment

The awareness of being more and more responsible for handling energy has, rightly so, increased over the last few decades. Krülland takes this task onboard.
Krülland offers various possibilities of keeping the energy consumption to a minimum by implementing state of the art technology which is, for the good of environment and the  lower financial burden of the customer.
Energy consumption is maintained low, in the private as well as the public sector, by implementing intelligent concepts for the using of electric energy and heat energy
With pleasure Krülland, together with the customer, will design the most reasonable individual  concept. Here some examples:


Making use of the sun’s energy

  • Absorber: direct heating of the water in the pool
  • Collectors: indirect heating of the water via a heat exchanger.
  • Photovoltaics
  • Coverings: solar air chambers or solar rolling shutters.
    Implementation of coverings: In co-operation with the Fraunhöfer Institut Krülland it was relatively exactly proven that by using pool coverings substantial savings could be made during heating of the pool and when using coverings on enclosed pools additional savings by the dehumidification.
    As an example, a rolling shutter cover for a an existing pool in a hotel, can easily be retrofitted. The investment/financing will be covered by the energy cost savings. Because the heat loss of a pool is usuially via the surface water in a way, it should, fort he sake of energy and the environment, be a mandatory prerequisite that pools have coverings.

Making use of ambient heat or geothermics

  • Air heat pumps: heat energy from ambient air is transferred to the pol via a heat exchanger.
  • Water-water heat pump: heat is transferred to the pool water by pumping warm ground water through a heat exchanger.
  • Brine to water heat pumps: a salt water solution (brine) is is pump through looped pipes in the earth. The heated brine transfers the heat to the pool via a heat exchanger.
    Using Cogeneration
  • A cogerenation unit is highly suitable in combination with swimming pool. The cogereation unit produces versatile useable electricity and delivers as „waste“ heat for heating the pool.
    Making use of tempory downtime of the pool equipment
  • Including lowering of the pool water level of overflow pools in the private and the public sector.
    Making use of pool elements
  • Heavily insulated sandwich pool wall elements as seen with the model LEIKPOOL fro Krülland.
  • Insulating of pipes.

Nutzung von Luft- oder Erdwärme:

  • Luft-Wärmepumpen: Wärmeenergie der Umgebungsluft wird über einen Wärmetauscher auf das Beckenwasser übertragen.
  • Grundwasser-Wärmepumpen: Das wärmere Grundwasser wird hoch gepumpt und die Wärme über einen Wärmetauscher auf das Beckenwasser übertragen.
  • Sole-Wärmepumpen: Über Rohre/Schleifen wird eine Salz-Wasser-Lösung (Sole) durch das wärmere Erdreich gepumpt. Die erwärmte Flüssigkeit erwärmt über einen Wärmetauscher das Beckenwasser.

Nutzung der Kraft-Wärme-Kopplung:

  • Ein Blockheizkraftwerk (BHKW) eignet sich hervorragend in Kombination mit einem Schwimmbecken. Das BHKW erzeugt flexibel verwendbaren Strom und liefert als \"Abfall\" Wärme zur Beheizung des Pools.

Nutzung von temporären Stillstandzeiten der Pooltechnik:

  • inklusive Absenkung des Wasserspiegels bei Überlaufbecken im privaten und öffentlichen Sektor.

Nutzung von Pool-Elementen:

  • Stark isolierte Sandwich-Beckenwandelemente wie beim Modell LEIKUPOOL von Krülland.
  • Isolierung von Rohren