Sustainable heat exchanger technology for medium/large Heat Pumps using natural refrigerants

In this presentation, we will describe how new heat exchanger developments make it possible to create efficient and sustainable fossil-free Heat Pump solutions using natural refrigerants. We will describe a few cases that have been long operating successfully.

Beschreibung

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Speaker

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Wann & Wo

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Di, 08.10.2024, 11:20 – 11:40

place

Halle 7A / 7A-638

Details

Format: Vortrag

Sprache: Englisch

Beschreibung

In this presentation, we will describe how new heat exchanger development makes it possible to create efficient and sustainable fossil-free Heat Pump solutions using natural refrigerants. We will describe a few cases that have been long operating successfully.
Heat exchangers are key components in Heat Pumps, largely determining their overall efficiency. Besides delivering maximum heat transfer, a heat exchanger in a Heat Pump fulfills various duties, the main ones are evaporation and condensing so operating with two phases but also sub-coolers, de-superheaters and oil coolers are important to achieve the best overall efficiency of the system. Large temperature differences and temperature lifts are challenges heat exchanger must deal with and in some applications they must also withstand dirty and corrosive media.
Thanks to their heat transfer efficiency, plate heat exchangers outperform many times the traditional shell-and-tube, offering a more compact solution. The trend has been to use them also in large industrial and commercial heat pumps operating with natural refrigerants such as R-717, hydrocarbons, and R-744.
This presentation talks about the latest development in plate heat exchanger technology used for a new generation of large Heat Pumps that offers reliable operation, high energy efficiency, short payback periods and do not have the drawback of using a refrigerant with a high global warming potential. It also describes the Alfa Laval program towards delivering sustainable heat exchangers from the angle of carbon footprint certification and showcasing some very interesting reference installations.

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