Modernisation and
Upgrading of the Heating System
Jindrichuv Hradec
PROJECT TEAM & PARTNERS
- Teplospol
- PHARE, the State Environmental Fund.
- Czech Energy Agency.
- SEVEn.
- The Energy Efficiency Center.
- K-projekt Dačice.
- Envi, s.r.o. Třeboň
BUDGET
CZK 137.6 million.
DESCRIPTION OF THE PROJECT
The project involves an upgrade of the municipal district heating
system which improved the quality of the heat delivery to both
residential and service customers and also involved a construction
of an "aquapark" featuring a solar system installed for
swimming pools' water heating
In April 2004 refurbishment of the district heating system in Jindřichův Hradec was launched. Among other things, it entails conversion from heavy fuel oil combustion to natural gas and biomass.
A specific part of the
project, funded partly from the city budget and the Phare funds,
involved an installation of solar panels on the roof of the newly
constructed city's aquapark (with both open-air and in-door
swimming pools).
The project entails modernisation of two Jindřichův
Hradec independent district heating systems serving a total of
15,000 inhabitants. Within the project, was possible to extend the
"U nádraží" district heating system in
particular. This system is based on a new warm-water source with an
installed capacity of 6 MW using biomass, and with an auxiliary
backup gas boiler plant for heat generation and supply for 924
flats and retail and service premises, which allow for connection
of other consumers in the future. The second long-distance heating
system is implemented on the "Vajgar a
Hvězdárna" housing estate. There, a gas hot-water
boiler plant with an installed output of 30 MW, operating in tandem
with a cogeneration unit with an installed output of 150 kW for
electricity and heat generation, will be mounted. Heat is supplied
to 3,703 flats, two primary schools, a nursery school, and retail
and service facilities. An Aquapark and a swimming pool recently
have been newly linked to the system, also using solar power to
warm up water. Additional consumers (approximately 200 new flats)
can be connected to the system in the future.
The solar panels are localted on the roof of the swimming pool and
consist of 96 flat Heliostar H300 N2L solar collectors. Each of
them has an abrosption area of 1,76 m2. The collectors are located
in eight rows and their total abrosption area covers 168,96 m2.
Their angel is 45° with south-western orientation which makes
ideal conditions for its all-year-round operation. The heat from
the collectors is delivered directly to the water in the swimming
pools through desk exchangers with no accumilation system.
Measuring and regulation is managed centrally with an real life PC
monitoring system.
PROJECT TARGETS
Emissions of basic
pollutants are to be reduced by approximately 86%, and CO2
emissions by 1.3%, while use of renewable energy sources will
increase, due to the project realisation.
The expected annual energy output of the solar system on the swimming pool complex is 98 362 kWh.
OTHER RELEVANT INFORMATION
Refurbishment of the heating system is being carried out on the basis of the Energy Plan drawn up by SEVEn at the request of the town. The plan analysed the present status of the town's fuel and energy supply, and submitted ideas for its possible future development. The main part of the document is a comprehensive design for reconstruction of the municipal heat supply from two isolated steam district heating systems, Vajgar and U Nádraží. It presumes ecological modernisation of heat management using biomass and natural gas, particularly in terms of reducing greenhouse gas emissions as the result of using renewable energy sources, also envisages conversion from a steam to a hot-water/warm-water system, and sets out the operational economics and the affordable heat price for the final consumer. The savings potential has been set at the level of 9,383 GJ in fuel, and the implementation will require capital costs totalling CZK 137.6 million.
CONCLUSIONS
Owing to this rehabilitation, which has obtained a positive evaluation for support from the Phare fund and the State Environmental Fund, emissions of basic pollutants are to be reduced by approximately 86%, and CO2 emissions by 1.3%, while use of renewable energy sources will increase.
CONTACT DETAILS
SEVEn, The Energy efficiency Centre
Zizkova 12, Ceske Budejovice 370 01 CZ
Tel: +420 386 350 443
seven@svn.cz,