Buena Práctica / Bonne Pratique /

Boa Prática

NOMBRE

NOM

NAME

Promote biomass actions in closed management processes on a local scale in the region of Berguedà (Catalonia)

Localización

Localisation

Localização

Berguedà, Barcelona

Tipología – Naturaleza

Typologie – Nature

Tipologia – Natureza

Periodo de aplicación

Période d’application

Período de aplicação

Winter 2016/2017 – Ongoing

Principales objetivos

Principaux objectifs

Período de aplicação

The project is pioneering in three essential axes:

– The global management of resources, controlling all the processes, from the planning of the works to the arrival of the wood at its destination.

– Optimization of resources obtained through classification

– Creation of a powerful local biomass consumption project that becomes a “third industry” closely linked to the forest management project.

It is important to demonstrate that collaboration between owners (public or private entities) can generate projects that encourage the evolution of the forest sector towards better situations.

Descripción detallada de la práctica o proyecto

Description détaillée de la pratique ou du projet

Descrição detalhada da prática ou projeto

Berguedà is one of the most forested regions in Catalonia, and energy from biomass is projected as one of the opportunities for this region in the future. On the one hand, by the economic benefits that can result from the use of this energy and, on the other hand, by the management of the forests that must accompany this development.

The project, a pioneer in Spain, provides energy to 32 municipal facilities through 13 biomass boilers (with a power of 4.3 MW and a consumption of 1,350 t/year of chips) in 6 municipalities, and to an industrial estate in Berga through two boilers of 2.3 MW each (3.750 t/year of total consumption of chips with only 1 boiler in operation), which heat a synthetic oil capable of reaching 300ºC to supply energy through two networks, one with a high temperature (thermal oil) and the other with hot water.

Thermal oil, hot water and steam will be the services that companies will enjoy integrated into the new network. This versatility is possible through the use of high temperature thermal oil and several heat exchangers that will serve each of the customers. Due to the use of this thermal oil, an important range of supply of temperatures to the industrial estate with exclusively forest biomass is opened, which confers an enormous singularity to this small industrial estate.

The chips used as biofuel in all the facilities come from a consortium formed by 7 municipalities of Berguedà (16,000 hectares of public forest), which in this way will increase the value of its forest resources and create local jobs. In addition, the consortium will directly manage the energy supply network to its customers. Thus, a local virtuous circle of resources and demand is closed; a true renewable energy mile project.

The wood is not auctioned to the highest bidder as is normally done, but is classified in the forest and the target industry of each lot of wood is decided before use to optimize the economic yield of forest resources. Harvesting operations are paid according to the type of wood in order to motivate productivity and ability to obtain value-added types of wood. For the use of biomass, in accordance with the cascade principle, only wood is used that cannot have any other commercial use.

The new activity generates 40 direct jobs; and the total budget, excluding construction costs, was 1,315,000€.

The Barcelona Provincial Council has made a contribution of 1.5 million euros to the project through a grant. The Government of Catalonia has collaborated in different work processes.

Agentes involucrados

Agents impliqués

Agentes envolvidos

Commonwealth of Berga Municipalities for biomass

Government of Catalonia

Evaluación de resultados

y lecciones aprendidas

Évaluation des résultats

et les leçons apprises

Avaliação de resultados

e lições aprendidas

Currently the work is continuous in the forest, whereas previously it was seasonal. A more professional system of work has been achieved in the forest, with better execution. Around 400 ha and 12,000 tons of wood per year are executed, and the quality and quantity of wood supplied to the industries has been improved.

It has been possible to establish an average of 40 jobs in rural areas with few possibilities of generating jobs in the primary sectors.

An innovative and replicable system has been achieved.

Facing a new system of work in the forest and the creation of a complete infrastructure of biomass consumption to produce a product with a dubious market, has generated great distrust for all sectors (including local). In addition, it has been generated by small local entities in a mountainous territory without many economic resources.

Fotografías

Photos

Fotos

Solución a los retos territoriales

Solution aux défis territoriaux

Solução para os desafios territoriais

Solución a un mayor nº de retos territoriales (a completar más adelante)

Solution à un plus grand nombre de défis territoriaux (à compléter plus tard)

Solução para um maior número de desafios territoriais (a ser completado depois)

Información de contacto

Information de contact

Informação de contato

Miguel Ángel Sobrino

http://www.mmbbiomassa.cat/Inici.aspx

mancomunitatbiomassa@mmbbiomassa.cat

Buena Práctica / Bonne Pratique /

Boa Prática

NOMBRE

NOM

NAME

District heating of the Municipality of Cuéllar

Localización

Localisation

Localização

Cuellar (Segovia, Castilla y León)

Tipología – Naturaleza

Typologie – Nature

Tipologia – Natureza

Use, transformation and demand

• Users avoid handling and storing fuels.
• The supervision of boilers and the need for periodic recharges are avoided.
• Overall, the efficiency of the system is greater.
• Problems associated with lack of performance in old boilers or the need to control the quality and quantity of supplies are avoided.
• The proposed method of operation will not affect the current facilities of the users, who remain in the current situation, being able to use them at any time.

Periodo de aplicación

Période d’application

Período de aplicação

1998 – Present

Principales objetivos

Principaux objectifs

Período de aplicação

Reduction of energy costs

Use of local biomass

Generation of local employment

Descripción detallada de la práctica o proyecto

Description détaillée de la pratique ou du projet

Descrição detalhada da prática ou projeto

Technically, the centralized system implemented in the town of Cuéllar consists of three main elements: the thermal power plant, the distribution network and the interconnection systems of the heating network with the user’s consumption elements. The system is completed with the necessary control elements to ensure supply conditions, emission levels and the measurement of user consumption.

The Thermal Power Plant is provided with two boilers, one of 5.2 MW and a second auxiliary boiler of 0.7 MW, in which the fuel is burned in the form of chips of 3 or 4 cm in length. By means of a group of pumps, the hot water coming from the boiler is introduced into a network of pipes three kilometers long where the water that has been heated in the boilers flows. Water is sent to homes, thanks to pumps, at 90 ° C and returns to the plant at 70 ° C. This distribution network consists of a double pipe heating system, one way that transports the hot water to the users and another one that returns the water already cooled to the plant after use. It is precisely the interconnection of the network with the user elements the last element of the system. Users connect to the network in parallel, all having the same supply conditions. The interconnection of the equipment is carried out by means of plate exchangers: on the one hand there is the primary circuit through which the water from the plant passes, and on the other hand the secondary circuit that brings the heating water to the radiators. These two circuits are connected currently in the plate exchangers for greater energy efficiency. For the Hot Sanitary Water is a similar operation by means of inter-accumulators in which the HSW that reaches the users is stored. There is no mixture of fluids at any time. It is important to highlight that the water of the plant is a closed circuit, it does not reach the faucets and radiators of each house, they are two independent circuits that do not mix, only exchange heat energy.

The system works completely automatically, it is the users’ consumption that controls the start-up of the different elements of the thermal power plant, so when a user makes a consumption it is automatically reflected in the return water temperature of the network, the plant is in continuous operation to provide the fluid with the necessary energy and that the flow temperature remains constant. All this in order to achieve comfort conditions with a continuous supply 24 hours a day at a temperature of 90 ° C. Supply of thermal energy to:

• Municipal facilities: Sports hall (Capacity 1,500 people) Cultural center (12 rooms) Public School (600 students)
• 5 Collective housing blocks (225 properties)
• 14 single-family homes of high standing
• Technical characteristics:
• Boiler of 4,500,000 Kcal. (Winter) Boiler of 600,000 Kcal. (Summer)
• 100 m3 storage silo
• Supply system
• Lifting belt
• Electric pumps
• Multicyclone, smoke scrubber
• Distribution network
• Auxiliary control equipment
• 3Km network. long with pre-insulated carbon steel pipe. (Imported from Nordic countries)
• Heat loss: 1º to -5º outside temperature

Agentes involucrados

Agents impliqués

Agentes envolvidos

Ayuntamiento de Cuéllar

IDAE

EREN

Universidad de Valladolid

Evaluación de resultados

y lecciones aprendidas

Évaluation des résultats

et les leçons apprises

Avaliação de resultados

e lições aprendidas

Fotografías

Photos

Fotos

Solución a los retos territoriales

Solution aux défis territoriaux

Solução para os desafios territoriais

Solución a un mayor nº de retos territoriales (a completar más adelante)

Solution à un plus grand nombre de défis territoriaux (à compléter plus tard)

Solução para um maior número de desafios territoriais (a ser completado depois)

Información de contacto

Information de contact

Informação de contato

Ayuntamiento de Cuéllar

Plaza Mayor, 1, 40200 Cuéllar, Segovia

921 14 00 14

aytocuellar@aytocuellar.es

http://www.aytocuellar.es/