{"id":20537,"date":"2024-09-26T10:25:28","date_gmt":"2024-09-26T08:25:28","guid":{"rendered":"https:\/\/mag.ebmpapst.com\/en\/?p=20537"},"modified":"2024-10-24T09:37:43","modified_gmt":"2024-10-24T07:37:43","slug":"efficient-innovation-the-eureka-air-heat-pump-lambda","status":"publish","type":"post","link":"https:\/\/mag.ebmpapst.com\/en\/industries\/heating\/efficient-innovation-the-eureka-air-heat-pump-lambda_20537\/","title":{"rendered":"Effi\u00adcient inno\u00adva\u00adtion \u2013 the Eureka air heat pump"},"content":{"rendered":"\n

Florian Entleitner and Florian Fuchs, the founders of Austrian start-up Lambda, had a ques\u00adtion: How can heat pumps be made more effi\u00adcient? Entleitner had the basic idea as part of his master\u2019s thesis, which concerned the evap\u00ado\u00adra\u00adtion processes in tubular heat exchangers. This idea trig\u00adgered the two men\u2019s inven\u00adtive\u00adness and in 2019 they used an inge\u00adnious method to acquire an old heat pump. \u201cBeing country boys, we used a cattle truck to collect the enor\u00admous piece of equip\u00adment from the Steier\u00admark region,\u201d explains Fuchs. \u201cWe cut it open and modi\u00adfied it in line with our ideas.\u201d<\/p>\n\n\n\n

This proto\u00adtype earned them the neces\u00adsary start-up funding from Austria Wirtschaftsser\u00advice and the Forschungs\u00adf\u00f6rderungs\u00adge\u00adsellschaft for deep-tech star\u00adtups. Today, five years and one Euro\u00adpean \u00adpatent later, Lambda\u2019s heat pumps are among the leaders in terms of effi\u00adciency and noise level\u200a\u2013\u200aand Lambda is now a medium-sized enter\u00adprise.<\/p>\n\n\n

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Inno\u00adva\u00adtion at Lambda W\u00e4rmepumpen is based on contin\u00aduous further devel\u00adop\u00adment. (Photo | Math\u00e4us Gartner)<\/p><\/div>\n

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Venti\u00adlation in heat pumps is crucial because it supports effi\u00adcient heat exchange by ensuring suffi\u00adcient air circu\u00adla\u00adtion. (Photo | Math\u00e4us Gartner)<\/p><\/div>\n

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With AxiBlade fans, Lambda heat pumps can be precisely controlled via ModBus. This makes them partic\u00adu\u00adlarly effi\u00adcient. (Photo | Math\u00e4us Gartner)<\/p><\/div>\n<\/div>\n\n\n

The Lambda system<\/h2>\n\n\n\n

Circu\u00adla\u00adtion takes place in the air heat exchanger or evap\u00ado\u00adrator. Compared with a conven\u00adtional heat pump, this increases the transfer of heat from the air to the cooling circuit by a factor of four to six. According to Fuchs, the biggest success was the design of the cooling circuit controller. As the design of their heat pump, the Eureka, is more complex, absolute preci\u00adsion is essen\u00adtial. This is achieved by the heat pump via a special controller for the expan\u00adsion valve, which ensures that the flow of the propane refrig\u00aderant is managed as precisely as possible. Fuchs does not want to disclose much more: \u201cWe have the patent on our special expan\u00adsion valve controller.\u201d And that\u2019s not the last of the inno\u00adva\u00adtions. The controller works with the support of a virtual twin. It defines the math\u00ade\u00admat\u00adi\u00adcally ideal vari\u00adables for the fan, compressor and valves, thus compen\u00adsating the start phases and fluc\u00adtu\u00ada\u00adtions in the Eureka.  <\/p>\n\n\n\n

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