eXergiemaschine: Efficient heat pump solution
Efficient heat pump solution for single-family homes thanks to modern eXergiemaschine
- Two heat buffers 550 l each
- Solar station
- Fresh water heater
- eXm-compact 5 kW
- VarCon 380 system controller
- Special feature: A four-point mixer supports the efficient use of heat from both heat sources under different load conditions.
eXergiemaschine enables efficient heat pump solution for detached houses with conventional radiators
The Rothfelder family from Warmisried had the oil heating system in their home, built in 1993, replaced with a more climate-friendly solution. Now a heat pump and the solar system installed in 2005 provide heat and hot water - supported by a eXergiemaschine compact. The eXergiemaschine ensures sufficiently high temperatures for the hot water supply and the heating circuits, as the conventional radiators in the old building require a flow temperature of around 60 °C on cold winter days. At the same time, the eXergiemaschine cools the return flow to the heat source. As a result, both the heat pump and the solar thermal system work more effectively. The „exergy system“ also includes other varmeco components: a high and a low temperature storage tank, a new transfer station for the solar collectors, a fresh water heater and the internet-enabled VarCon 380 system controller. This means that the Rothfelder family, who want their house to be climate-neutral in the medium term, are well equipped for the future - and independent of fossil fuels.
Frequently asked, simply explained
From a physical point of view, energy is always conserved. However, it consists of usable parts, the exergy, and not directly usable parts, the so-called anergy.
Energy = exergy + anergy
In technical thermodynamics, exergy refers to the part of the energy that can perform work. In heating technology, exergy is the part that leads to heat flows due to the higher temperature level and thus makes space heating and domestic hot water heating possible in the first place.
Exergy, the proportion of energy that determines whether heat is usable, must be given greater focus. After all, exergy optimization is the key to system efficiency.
If the different temperature ranges of a well-stratified water storage tank are completely mixed, the water ends up with a uniform average temperature.
The energy content of the storage tank remains unchanged. During this process, the hot water transfers its heat to the colder water. This means that the exergy that existed at the higher temperature level compared to the average temperature and was required, for example, for
which would be necessary to heat drinking water, has disappeared, irretrievably, irreversibly. Exergy has become anergy. Anergy is energy that can no longer be used (without a new supply of energy). Only by using auxiliary means (e.g. electricity) can it be used again.
exergy arise.
In contrast to energy, exergy can therefore be reduced or even completely destroyed.
The varmeco fresh water technology uses instantaneous water heaters to heat domestic hot water only when required, eliminating the need to store it in a domestic hot water tank and inhibiting the growth of germs (e.g. legionella). The integrated VarCon211 controller only activates the charging pump when drinking water is required, which saves energy and ensures hygiene at the same time.
Thanks to the separation of heating and domestic hot water and adaptive control, the system adapts optimally to daily requirements. The circulation pump control keeps the domestic hot water at the right temperature and prevents the proliferation of legionella bacteria, ensuring a high level of hot water comfort and safety.
The eXergiemaschine recycles waste heat that escapes unused in many businesses and turns it into usable heat. It raises the temperature of the waste heat to a usable level and simultaneously cools the lower part of the heat storage tank, which improves the efficiency of the heat sources. This efficient use saves energy and is easy on both the wallet and the environment.
The eXergiemaschine is a special heat pump that enables high source temperatures and a wide temperature spread. This makes it an ideal partner for renewable energy systems, such as solar thermal and hybrid modules, which work more efficiently and supply more energy.
Questions? With pleasure!
Get in touch with us. Whether you are the owner of a
Heating system, commercial/industrial customer or local authority
Here you will find your contact to varmeco.
Would you like to become a specialist partner?
Take advantage of information benefits as a partner!
Don't have any login details yet?
Registration is quick and non-binding.