Abstract: An installation device having power-engineering or building-services-engineering modules, and a method therefor, includes at least two side walls and a removable front cover, which enclose stackable modules. The side walls have a frame, two longitudinal rails arranged therein, and a transverse rail. The longitudinal rails are arranged along the corners of the modules remaining in the device for servicing of a module, in order to secure the one or more modules arranged above the module to be serviced. The two frames are arranged along two longitudinal rails on the front side and can be connected, via pulleys attached to the upper frame segment, to the transverse rails, on which the module to be serviced rests, so that the module is removable from the installation device once the one or more modules arranged above the module to be serviced are secured to the longitudinal rails.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir has a water heat exchanger arranged on a bottom and has an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir that is surrounded by an inner shell which delimits the device with respect to an outer shell covering the inner shell from the bottom, wherein the outer shell is at least partially inserted into an earth layer, and the device is closed upwardly by a lid in such a way as to make it possible to generate a flow of air from an air inlet to an air outlet of the air heat exchanger.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir includes a water heat exchanger and an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir, and wherein the device includes an outdoor air inlet from which an outdoor air flow can be induced to an air outlet through the air heat exchanger, includes a heat exchanger which is designed to direct exhaust air flowing in from an exhaust air inlet for energy transfer via the liquid reservoir (FR) into a peripheral area of the heat exchanger, from which the exhaust air can be supplied as an extract air flow to the air heat exchanger, in which the outdoor air flow and the extract air flow mix.

Abstract: In a system for air-conditioning interior spaces of a building which are connected via at least one exhaust air duct, one or more interior spaces are provided with an air-conditioning unit which has a inlet line of outdoor air, which supplies inlet air or circulating air to the interior space or spaces, and which is connected to a fluid circuit of a heat pump. The exhaust air duct and a further fluid circuit of the heat pump are connected to an energy store installed outside the building, wherein the energy store is connected to a heat exchanger in a liquid reservoir for energy transfer and for energy storage, which is connected via the heat exchanger to another fluid circuit of the heat pump, the exhaust air being directed into the liquid reservoir via a heat exchanger.

Abstract: A heat exchanger arrangement includes a housing in which an air inlet opening is arranged on the circumference, a cover that covers the housing on an upper side and in which an air outlet opening is arranged, a reverse-operated radial fan being arranged inside the housing in such a way that it can generate an air flow between the air inlet opening and the air outlet opening, which air flow is directed radially inward with respect to the axis of rotation of the radial fan and which flows through at least one air heat exchanger arranged in the housing.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir has a water heat exchanger arranged on a bottom and has an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir that is surrounded by an inner shell which delimits the device with respect to an outer shell covering the inner shell from the bottom, wherein the outer shell is at least partially inserted into an earth layer, and the device is closed upwardly by a lid in such a way as to make it possible to generate a flow of air from an air inlet to an air outlet of the air heat exchanger.

Abstract: A system for shoring a trench, which is dug for receiving a pipeline and includes spaced apart sidewalls, includes at least two supporting units that are spaced apart from one another in the longitudinal direction of the trench and configured for absorbing transverse forces from the sidewalls. Disposed between the two supporting units is a plurality of shoring units, each configured for supporting the sidewalls of the trench. Together with the supporting units, the shoring units are configured to form a barrier-free lowering space within which the pipe can be lowered into the trench from outside the trench to the floor of the trench. A method for laying a pipe using the shoring system is also disclosed.

Abstract: A system for shoring a trench, which is dug for receiving a pipeline and includes spaced apart sidewalls, includes at least two supporting units that are spaced apart from one another in the longitudinal direction of the trench and configured for absorbing transverse forces from the sidewalls. Disposed between the two supporting units is a plurality of shoring units, each configured for supporting the sidewalls of the trench. Together with the supporting units, the shoring units are configured to form a barrier-free lowering space within which the pipe can be lowered into the trench from outside the trench to the floor of the trench. A method for laying a pipe using the shoring system is also disclosed.

Abstract: A device for transferring heat between a body of water and the surrounding atmosphere includes a water heat exchanger disposed to lie beneath an air heat exchanger. A fan moves ambient air into and through the air heat exchanger, which includes pipes for circulating water from the body of water through the air heat exchanger. The air heat exchanger includes a partition that separates the water flowing through the air heat exchanger from the ambient air flowing through the air heat exchanger. The partition mediates the transfer of heat energy between the ambient air flowing through the air heat exchanger and the water flowing through the air heat exchanger.

Abstract: An energy storage device for a power plant includes a heat exchanger arranged in a floating manner in a lower basin that is fillable with water via a first supply line. A second supply line supplies water from the lower basin. A third supply line is in fluid communication with the heat exchanger. A heat pump provides coolant to the heat exchanger via the third supply line such that energy is extracted via the heat exchanger while freezing of the water in the lower basin or in the form of sensible heat from the water in the lower basin, wherein the energy is passed on to a consumer for heat dissipation or for cold dissipation.