Device for heating and cooling, respectively, more than one house, where at least two small houses (1) are connected to a common energy storage (2) in the ground and where a control device (3) is arranged to transport a heat carrier in a pipe work (4) connected to the energy storage (2). The small houses (1) are each arranged to have a separate respective heat pump device, and in each heat pump device is connected to the pipe work (4), so that, firstly, the heat carrier can flow through the heat pump device and, secondly, the small houses (1) are connected in parallel in relation to each other to the pipe work (4).

Device for heating and cooling, respectively, more than one house, where at least two small houses (1) are connected to a common energy storage (2) in the ground and where a control device (3) is arranged to transport a heat carrier in a pipe work (4) connected to the energy storage (2). The small houses (1) are each arranged to have a separate respective heat pump device, and in each heat pump device is connected to the pipe work (4), so that, firstly, the heat carrier can flow through the heat pump device and, secondly, the small houses (1) are connected in parallel in relation to each other to the pipe work (4).

A modular HVAC-SHW/DHW system that provides comfort conditioning, sanitary hot water, and ventilation in the buildings is disclosed. The system includes HVAC units, SHW/DHW units, and one or more air-to-water heat pump (AWHP) units fluidically connected to the HVAC units and the SHW/DHW units through at least one water-to-water heat pump (WWHPs). The AWHP units are configured to enable the exchange of heat between the environment and the WWHPs, and the WWHP is configured to enable the exchange of rejected heat between any of the AWHP units, the HVAC units, and the SHW/DHW units. The system is designed in a packaged form factor or modular design, where the components/units of the system are configured within a housing that is easily installable at the desired locations in the building.

Systems, methods and devices for utilizing an energy chassis device designed to sense, collect, store and distribute energy from where it is available using devices that harvest or convert energy to locations requiring energy such as but not limited to HVAC (heating, ventilation and cooling) systems. The systems, methods and devices can also be used with a next generation geothermal heat exchanger that achieves higher energy harvesting efficiency and provides greater functionality than current geothermal exchangers.

A heat pump has an evaporator for evaporating water as a working liquid so as to produce a working vapor, the evaporation taking place at an evaporation pressure of less than 20 hPa. The working vapor is compressed to a working pressure of at least 25 hPa by a dynamic-type compressor so as to then be liquefied within a liquefier by direct contact with liquefier water. The heat pump is preferably an open system, wherein water present in the environment in the form of ground water, sea water, river water, lake water or brine is evaporated, and wherein water which has been liquefied again is fed to the evaporator, to the soil or to a water treatment plant.

Thermal energy system, coupled to a building energy system, which selectively provides heating and/or cooling to a building. The thermal energy system includes a heat pump system, first and second geothermal systems, and first and second switch assemblies, and the first and second switch assemblies are selectively switchable to thermally interconnect the first and second geothermal systems to each other on a primary input side of the heat pump system or on a second output side of the heat pump system, and: a) the first and second switch assemblies are adapted to be switchable to provide a first operation mode which thermally connects the first geothermal system to the heating output and the second geothermal system to the cooling output, and the heat pump system being thermally unconnected to the first and second geothermal systems; or b) the first and second switch assemblies are adapted to be switchable to provide a first operation mode which thermally connects together the first and second geothermal systems via the heat pump system, and the heating output and cooling output being thermally unconnected to the first and second geothermal systems.

An installation including at least one source of geothermal energy for geothermal storage, at least one other energy source, and equipment for converting and distributing energy. The geothermal source includes probes installed in the medium that permit heat exchange between the geothermal medium and a heat-transport fluid passing through the probes. The method involves defining a forecast trajectory (TP) for the temperature of the geothermal medium over time, evaluating the temperature of the geothermal medium, making an adjustment to the thermal power exchanged between the geothermal medium and the heat-transport fluid which on leaving the probe has a temperature (TW), in the direction of making the temperature of the geothermal medium consistent with the forecast trajectory. The mean (TM) of the forecast trajectory (TP) is stable and preferably exhibits, with respect to the ground temperature (TN) a differential causing an annual thermal flux between the natural ground and the medium.

A storage water heater includes at least one heating device, at least one storage tank wherein water is stored and heated, at least one control and management unit capable of checking at least the heating device, at least one inlet duct through which water may be introduced into the tank, at least one outlet duct through which water may be sent/withdrawn from the tank, wherein there are at least two heating devices, of which at least one main heating device and at least one auxiliary heating device are provided, and wherein the water heater includes a circulator dedicated, via at least one hydraulic connection duct, to the recirculation of the storage water stored in the tank, the circulator being capable of recirculating the water of the storage between the lower part and the top part of the tank, by passing through the auxiliary heating device.

A storage water heater includes at least one heating device, at least one storage tank wherein water is stored and heated, at least one control and management unit capable of controlling the at least one heating device, at least one inlet duct through which water may be introduced into the tank, at least one outlet duct through which water may be sent/withdrawn from the tank, at least two heating devices, of which at least one main heating device and at least one second auxiliary heating device adapted to act as a pre-heater, wherein the water heater includes a by-pass duct capable of deviating, entirely or partially, the water flow entering the tank so as to guide and convey it in a zone of the tank placed at a height higher than the outlet section of the inlet duct.

Disclosed is a two-stage heating geothermal system using geothermal energy. The two-stage heating geothermal system includes a geothermal heat exchanger, a geothermal heat pump, a booster heat pump, a bypass line, and a bypass line opening and closing valve. The operating efficiency of the two-stage heating geothermal system using geothermal energy is significantly improved. Hot water supply, auxiliary heating, and the like are controlled to be completely independent of main heating.