GROUPING OF VARIOUS ALTERNATIVE ENERGY SOURCES

Obiettivo

Modification of existing installations, including sanitary hot water supply, ice-cold water supply, heating, ventilation and air-conditioning systems of a fire-station building.
The proposed modifications are intended to make better use of available energy sources. This includes restoration of the solar energy collector, installation of heat recovery systems and other measures to minimize energy losses and wastage, and hence achieve significant savings in fuel and elelectricity.
Anticipated fuel consumption savings from the boiler are 702,133 kWh (60,372 Tep)/year; Electricity savings should be in the order of 134,590 kWh/year.
At the current price of fuel and electricity, payback on investment would be 1.302 years.

1.SANITARY HOT WATER INSTALLATIONS.
Sanitary hot water supply will be provided by a system consisting of 50 m2 of flat plate solar energy collectors, a water/water buffer, heat exchanger,
a 3,000 litre heat-exchange accumulator (I) for the storage of solar-preheated sanitary water and two 3,000 litre accumulators (II & III) for post-heated sanitary water.
In winter, accumulator II will be used for heating the water from energies recovered from the ice-cold water network, (see below) and accumulator III to further raise and adjust the water temperature to usage requirements, should the heat recovered from the ice-cold water system prove to be inadequate.
In summer, accumulators II and III are connected in series for boosting the water temperature at times of insufficient solar heat.
In the case of excess solar energy, accumulator I will be used for the hose-drying air.
2. COMPUTER CENTRE "900".
The centre consists of three rooms airconditioned from installations based on hot and ice-cold water networks and 100% air recycling.
These installations will remain unmodified but the heat energy extracted from the ice-cold water production system will be recovered.
3. AUDITORIUM
The auditorium's air conditioning is provided by an installation using hot water, ice-cold water and air exhaust system with a 10% supply of fresh air.
Circulated airflow : 4,99 m3/h ; Exhaust airflow : 4,400 m3/h. This installation will be modified in such a way that heating will be provided by energy extracted from the ice-cold water circuit. Furthermore, heat from the exhaust air will be used to preheat the new air.
4. HOSE DRYING TOWER
Fire hoses are dried by a 5,000 m3/h flow of warm air. The air is heated by a network of hot water pipes. The heat required for the piped hot water will be provided by the heat energy supplied by the solar collectors. Heat from the air exhaust will be used to preheat the new air.
The main sources of energy for the existing installations are provided by :
a) The Heating Plant's main 1.6 MW boiler and smaller 0.3 MW boiler for the summer period
b) The Cold Water Plant which includes one 200 MW and one 35 kW cooling units. The project intends to demonstrate that the energy sources described in the above paragraphs 1 to 4 will be sufficient to meet requirements during the summer months, to a point that it will be possible to shut down the boiler plant completely for that period, thereby eliminating the need for the summer boiler. The heat reclaim and re-use systems will also significantly reduce the amounts of energy needed from the main boiler throughout the year.
5. THE SOLAR COLLECTOR
When put back into use, is expected to deliver annually some 13,200 kWh
(1,135 TOE) of heat energy.

Programma(i)

ENG-ENALT 2C - Programme (EEC) of demonstration projects relating to the exploitation of alternative energy sources and to energy saving and the substitution of hydrocarbons, 1983-1985

Argomento(i)

6.2 - THERMAL

Invito a presentare proposte

Data not available

Meccanismo di finanziamento

DEM - Demonstration contracts

Coordinatore

AGGLOMERATION DE BRUXELLES

Contributo UE

Nessun dato

Indirizzo

SERVICE INCENDIE AVENUE DE L'HELIPORT 11
1210 Bruxelles
Belgio

Costo totale