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EP-4735806-A1 - HEATING SYSTEM FOR THE GENERATION OF DOMESTIC HOT WATER AND HEAT TRANSFER FLUID

EP4735806A1EP 4735806 A1EP4735806 A1EP 4735806A1EP-4735806-A1

Abstract

The invention relates to a heating system for the generation of domestic hot water and heat transfer fluid. According to the invention, the system includes a sonic generator set up to generate sonic waves, an electric power supply system serving to supply power to the sonic generator and to set it in motion, a unit for the transfer of the thermal energy generated by the sonic waves toward a fluid, in order to obtain the hot fluid, which includes at least one sonic resistor, an accumulator for the transfer and storage of thermal energy, one or more cylinders serving to regulate the pressure generated by the sonic generator in the system, a thermal energy transport network in fluid communication with the accumulator for the transfer and storage of thermal energy, serving to transport the fluid to one or more places, and monitoring and control equipment regulating the generation process depending on the requirements of transport to one or more places; thus, the system can be associated efficiently with other systems for the generation of thermal energy (solar system or heat pumps) and, where these investments do exist, they will allow interconnection with the sonic system and, thus, increase the end efficiency of the investment but also decrease the costs of conversion of the system for the generation of the heat transfer fluid.

Inventors

  • OPRITESCU, Constantin
  • GIURGESCU, Alin-Eugen

Assignees

  • Sonic Technology Srl

Dates

Publication Date
20260506
Application Date
20240726

Claims (7)

  1. 1. Heating system for the generation of a hot fluid, i.e. domestic hot water and/or heat transfer fluid, characterized by the fact that it is set up to generate thermal energy by using sonic waves; this system includes: - a sonic generator (A) set up to generate sonic waves, - an electric power supply system (B) which supplies power to the sonic generator (A) and sets it in motion, - a unit for the transfer of the thermal energy generated by the sonic waves, to a fluid, in order to obtain the hot fluid; this unit includes at least one sonic resistor (25); - an accumulator (27) for the transfer and storage of thermal energy; - one or more cylinders (21 , 22) that regulate the pressure generated by the sonic generator (A) in the system; - a heat transport network in fluid communication with the accumulator (27) for the transfer and storage of thermal energy, serving to transport the hot fluid to one or more places; and - monitoring and control equipment (C) regulating the generation process, depending on the requirements of transport to one or more places.
  2. 2. The heating system for the generation of a hot fluid according to claim 1 characterized by the fact that it also includes a stainless steel corrugated coil for domestic hot water (28) and an expansion vessel (34).
  3. 3. The heating system for the generation of a hot fluid according to claim 1 or 2 characterized by the fact that the first cylinder serving to regulate the pressure generated by the sonic generator (A) has a volume of at least 750 cc, and the second cylinder serving to regulate the pressure generated by the sonic generator (A) has a volume of at least 500 cc.
  4. 4. The heating system for the generation of a hot fluid according to any of the previous claims characterized by the fact that the sonic generator (A) includes a brushless electric motor of 2800 W, preferably which can be reduced to at least 1500 W (01 ), of 24V-48V tied via a reductor or elastic coupling (02)(03) to a crank gear (07)(08)(09) at the end of which there is a piston (11) set up to slide inside a cylinder (12) to generate sonic waves.
  5. 5. The heating system for the generation of a hot fluid according to claim 4 characterized by the fact that the piston (11) diameter is at least 10 mm and the piston (11) stroke length inside the cylinder (12) is at least 5 mm.
  6. 6. The heating system for the generation of a hot fluid according to any of the previous claims characterized by the fact that, inside the accumulator (27), there are the sonic resistor (25) and a stainless steel corrugated coil for domestic hot water (28).
  7. 7. The heating system for the generation of a hot fluid according to any of the claims from 1 to 5 characterized by the fact that the heat transfer unit is a stratification plant where the resistor (25) is inside a stainless steel cylinder filled with oil (29), and where the stainless steel cylinder filled with oil is inside the accumulator (27), together with a stainless steel corrugated coil for domestic hot water (28).

Description

HEATING SYSTEM FOR THE GENERATION OF DOMESTIC HOT WATER AND HEAT TRANSFER FLUID FIELD OF THE INVENTION This invention relates to a heating system for the generation of domestic hot water (DHW) and heat transfer fluid, by using a sonic thermal energy generation system. STATE OF THE ART Currently, several types of heating systems are used for the preparation of DHW and for the heating of residential or indoor spaces. These systems are included in 2 broad categories: A) Central heating system; B) Individual heating system. A) The central heating system The central heating system is the one most widely used in the urban areas of the world, and it has advantages in the form of small thermal energy generation costs, while also showing significant disadvantages, e.g. the large maintenance network and the considerable investments. The central heating system is divided in 2 broad categories from the environmental viewpoint of thermal energy generation: Geothermal heating (which is sustainable energy), strictly linked with the presence of geothermal springs in the area in question; (Gas- or coal-based) thermal power stations, which are considerably polluting and whose cost of thermal energy generation is highly sensitive to the energy market’s movement. B) Individual heating system This is the most widespread system in the rural areas, as well as in many residential areas around large conurbations. Its use has also increased in urban areas, where the central thermal grid is outdated and where the population has sought not to depend on the central heating system. Several types of heat transfer fluid generation systems are known with respect to the individual heating system: 1) Conventional wood-burning stoves, mainly used in rural areas where there is no gas supply network, and gas stoves where there is a gas supply network; 2) Individual heating systems using gas, electric power, wood, pellets, heat pumps. 1) CONVENTIONAL WOOD-BURNING SYSTEMS (STOVES, FIREPLACES) AND GAS STOVES The disadvantages of these heating systems, some of the first to be used, are: - Large wood storage space needed. The large volume of stored wood depends on the area and size of the house; - Such a system requires tedious maintenance, with regular cleaning and servicing of the chimney to prevent accidents caused by smoke released indoors, which can lead to the asphyxiation of those in the house; - Fire hazards resulting from inadequate or incorrect supervision of stoves; - Daily cleaning of cinders resulting from the burning of wood; - The need for more than one stove in the household, depending on the size of the living space; - Moreover, stoves do not deliver DHW. This would also include gas stoves, which have the same disadvantages as wood-burning stoves, except for the daily cleaning of cinders and the storage space requirement. 2) GAS, ELECTRIC POWER, WOOD, PELLET, HEAT PUMP HEATING SYSTEMS 2.1. The use of gas power plants is the most widespread around the world; they can supply both DHW and hot water for heating. In Europe, approximately 65 million gas power plants are being used. The advantages of a gas power plant include the small space needed and the fact that they can bring water to a high temperature within a relatively short time; on the other hand, this means high energy demand. The most efficient gas power plants are condensing power lants, with 90% efficiency. The disadvantages of a gas power plant include: - Availability of a gas supply network in close vicinity; - Installing the power plant in a well-ventilated space; - A hole needs to be drilled in a wall in order to allow pulling out the exhaust stack; - Installation requirements. The gas power plant needs to be installed and commissioned by certified companies; - Regular inspections of the gas system as well as of the thermal power plant; - The potential for gas leaks, which can lead either to explosions or to asphyxiation if not detected and contained in time; - The energy used to generate heat is a polluting energy and is one of the main factors driving global warming, along with gas and coal-fired vehicles and factories. Gas power plants are products requiring average to above-average investment, depending on the size of the system. 2.2. Electric power plants are a superior alternative to gas power plants. They are becoming more popular, especially in areas where there is no gas supply network. They can deliver both DHW and heat. The advantages of an electric power plant are: - It can be installed in any space, without the need for a well-ventilated room; - The energy used for the generation of heat is clean energy. The disadvantages of an electric power plant are: - The long time it takes to raise the temperature of water in the boiler, which is done with high power demand, depending on the resistor used. - Relatively low efficiency, in order to generate 1 kilowatt of calorific energy, 1 kilowatt of electricity is needed, which translates into an efficiency index o