Energy conservation by thermal insulation and refurbishment of the heating system in housing estate 'Sudeckie' in Swiebodzice. Final monitoring report 1996 - 97 and 1997 - 98, Poland

摘要

The site for the project is located in South West Poland in the city of Swiebodzice, in a housing society called 'Sudeckie'. The society is served by its own district heating network supplied from a coal fired boiler plant. There are plans for a future conversion of the boiler plant to natural gas, but as yet there is no gas pipeline in the district to supply the plant. The monitoring programme is based on the readings from energy meters installed in all buildings, in the boiler house and from data obtained from a number of thermologgers placed in selected apartments. The manual readings are done by the local staff in the housing society and the boiler house. In the 800 flats housing estate the energy saving activities are already showing good results by a clear and detectable drop in the energy consumption. The total energy savings due to thermal insulation, thermostatic valves and balancing valves in 1996-97 are approximately 15% and in 1997-98 the savings have increased to 30%. The effect from the installed thermostatic valves is improved comfort through better control of indoor temperature, as well as energy savings by reducing the excess heat. The boiler house has been furnished with variable speed pumps and frequency converters and automatic weather compensating equipment. The boiler house has also been equipped with a pressure holding system and control valves for heat control. In the houses thermostatic valves have been mounted at the radiators, and air venting equipment has been installed at the top of the risers. (EG)