Collector with plastic cover

30.06.2016
Lennart Jacobsson, CEO of Ephex explains the new solar heating system at the Intersolar. (Photo: Jens-Peter Meyer)
Lennart Jacobsson, CEO of Ephex explains the new solar heating system at the Intersolar. (Photo: Jens-Peter Meyer)

The Swedish company Ephex is developing a new solar heating system for single-family homes. The heart of the system is a new flat-plate collector.

It includes a full surface flow-through aluminium absorber. The frame is also made of aluminium. In contrast to other collector concepts, the collecting channel is an integral part of the frame. According to CEO Lennart Jacobsson, the welded joint between the collecting channel and the aluminium profile is where the special expertise comes into play when manufacturing this collector. The front and rear sides are sealed with polycarbonate plates. The rear insulation consists of a 4-mm Thermoreflect plate. Using this structure, Ephex achieves a collector height of just 50 mm and a weight of 32 kg. The gross surface area is 2.03 m2.

Another new feature is the salt-based latent storage system. Together with a heat pump and conventional water heater, it rounds off the complete system. By using a latent-heat storage system, the volume of the water tank can be significantly reduced. Ephex is currently using three layers with different melting temperatures. According to Jacobsson, the system configuration is still being optimised.

Jens-Peter Meyer

Similar Entries

Global Energy Storage Systems Market is set to grow from its current market value of more than $340 billion to over $500 billion by 2025; according to a new research report by Global Market Insights, Inc.

In the first half of 2019, solar, wind and other renewable sources accounted for 44 percent of the electricity consumed in Germany, marking a record high. Preliminary calculations by the Centre for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW) and the German Federal Association of Energy and Water Management (BDEW) yielded this figure. Renewables had accounted for 39 percent of electricity consumption in the first half of 2018.

As the pilot phase shows, the patented innovation developed by plusAmpere has enormous potential: The use of the innovative reflector and calculation system improves the worldwide yields of photovoltaic facilities (PV facilities), making them more profitable and cost-efficient (pict. plusAmpere)

The company plusAmpere introduces an innovative “reflector and calculation system” offering an efficient and inexpensive way of increasing the overall yield of existing and newly planned photovoltaic and solar thermal facilities.

(pict. SH Group A/S)

New easy-to-maneuver transportation solution enables safe, easy and secure transportation of large wind blades on rough and uneven surfaces.