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Acumuladores de calor de estado sólido con capacidad de hasta 200 MW y agua como agente térmico que aprovecha la tarifa nocturna de electricidad para suministro municipal de calefacción

Resumen

Tipo:
Oferta Tecnológica
Referencia:
12 RU 86FG 3QC5
Publicado:
23/06/2015
Caducidad:
30/12/2015
Resumen:
Una empresa rusa está diseñando un acumulador de calor de estado sólido con agua como agente térmico y con una capacidad de hasta 200 MW que aprovecha la tarifa nocturna de electricidad para reducir el coste de calefacción en la ciudad hasta 1,5 - 2 veces. El acumulador mejora la seguridad y rendimiento de todo el sistema energético y de las centrales eléctricas y consiste en un medio hecho de esteatita, mineral natural ecológico con elevada capacidad térmica, resistencia al calor y propiedades de transmisión de calor que soporta cambios de temperatura de -50C a +1000C. Se buscan socios para continuar con el desarrollo.

Details

Tittle:
Solid-phase heat accumulators of up to 200 MW capacity, with water as heating agent, using night electric energy for municipal heat supply
Summary:
A small enterprise from Karelia, Russia, is designing a solid-phase heat accumulator with water heating agent and up to 200 kW capacity that uses night electric energy to reduce cities' heating cost by 1,5-2 times, to improve safety and performance of the entire energy system and individual power stations. The company seeks partners for joint further development.
Description:
One of the ways for optimization of energy consumption and reducing the buildings' heating costs is utilization of night energy.
The Russian company with a great experience in development and manufacture of original solid-state heat accumulators with various heating agents, jointly with a Russian R&D partner, made calculations that prove the possibility of creating heating systems with huge heat capacity based on solid-phase (solid-state) heat accumulators with water heating agent. At the moment, there are no analogues of such heating systems.
The designed heat accumulator consists of a heat accumulating working medium made of solid material - soapstone (environmentally friendly natural mineral having high heat capacity, heat resistance, heat transmission properties). Soapstone can withstand multiple temperature drops from -50C to +1000C. A tube heat exchanger for water heating and electric heating elements are installed into a solid heat accumulating working medium. The heat accumulator is covered with heat insulation, which ensures heat storage for at least 16 hours.
Surplus (night) electric energy of the whole power grid and/or individual power station can be accumulated directly in a heat accumulator of 100-200 MW capacity mounted at the power station, and/or in a heat accumulator of 10-200 MW capacity at points located in 50-100 km from the power station. Heat accumulators of 0.1-10 MW can be used for heating separate blocks of flats, high-rise buildings or a group of small buildings, jointly with existing electric boilers.
During the cold season, water for municipal heat supply system is heated directly in a water circuit of the heat accumulator of 10-200 MW, installed in a place suitable for creation of optimal regime for heating and for grid pumps operation. In summertime, when heat supply water is not produced, night (surplus) electric energy can be used for hot water supply; it can also be used for heating of feed water and steam.
Use of these heat accumulators will allow reducing the cost of cities' heating in 1,5-2 times, due to low cost of night electric energy.


Current and Potential Domain of Application: Heating of small towns and cities' districts, manufacturing units and other large facilities due to use of night electric energy or energy from separate NPPs. Regulation of the round-day load of energy system or NPPs. Use, particularly during the summer, to heat feed water or (and) for production of overheated steam at NPPs, as well for emergency power discharge in case of electric load cut-off.
Current and Potential Domain of Application
Heating of small towns and cities' districts, manufacturing units and other large facilities due to use of night electric energy or energy from separate NPPs. Regulation of the round-day load of energy system or NPPs. Use, particularly during the summer, to heat feed water or (and) for production of overheated steam at NPPs, as well for emergency power discharge in case of electric load cut-off.
Advantages and Innovations:

There are no analogues in the world to the heating systems based on this heat accumulator in terms of technical parameters.
The proposed heat accumulators have significant advantages in comparison with existing technologies used to equalize the round-day energy load:
- low cost of the heat accumulator per 1 kW, as compared to cost of gas-turbine power plant (GTPP) and hydro accumulating power station (HAPS),
- small size: high working temperature (+600C) of heat accumulating working medium allows to make these accumulators much more compact than GTPP and several times smaller than HAPS,
- high reliability, since the soapstone's service time is over 50 years. The proposed designs of heat accumulators allow easy replacement of electric heating elements and water heat exchanger (with overheating control system). All analogues have much more complicated procedure,
- there are no inflammable or explosive elements in the heat accumulator's design,
- the heat accumulator is ecologically safe.
Use of these heat accumulators will allow to:
- reduce loss in power grids and improve the power quality,
- ensure safety in case of consumers emergency cutoff , due to easy accumulation of surplus energy,
- release significant electric power in daytime,
- increase the efficiency of power generating devices including nuclear power plants (NPP).
Stage of Development:
Under development/lab tested
IPs:
Granted patent or patent application essential
CommeR Statunts Regarding IPR Status:
RF Patents 2004, 2008, 2012

Partner sought

Type and Role of Partner Sought:
- Type of partner sought: R&D organization, government agency, large enterprise.

- Specific area of activity of the partner: research and control of reliability and efficiency of NPPs and energy systems, production of equipment for NPP.

- Task to be performed by the partner sought: joint fundraising for creation, testing and certification of models, prototypes of heat accumulators with liquid heat agent with the capacity up to 200 MW.
Type of Partnership Considered:
Joint further development

Client

Type and Size of Client:
Industry SME 11-49
Already Engaged in Trans-National Cooperation:
No

Keywords

Technology Keywords:
04001001 Almacenamiento de calor
04001002 Suministro y transporte de calor, calefacción central
04001004 Transmisión de electricidad