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Content archived on 2024-05-14

RATIONAL SUPPLY OF POWER, HEAT AND COOLING IN BUILDINGS DEMONSTRATED BY A HOSPITAL IN DRESDEN

Objective

The overall objective of this project is to demonstrate the optimized combination of innovative technologies and equipment such as fuel cell operating on natural gas, adsorption refrigeration machine, new type of solar collectors, PV-System and highly efficient air conditioning technology at the hospital of the "Malteser Betriebsträgergesellschaft Sachsen GmbH" in Kamenz (DE). The primary aim is to apply renewable energy sources and rational use of energy in order to reduce the annual fossil fuel and electricity consumption by an estimated total of 2.0x10exp6 KWH/Y.
The estimated payback period is 9.3 years based on a total investment of 3016477 ECU of which the Commission may provide support up to 783000 ECU. The project is estimated to take 3.1 years in total to complete all phases, and additional benefits will include an estimated reduction per annum of CO2 440 ton (demonstration object in Kamenz), and a decline in noise and dust pollution.

A demonstration plant will be installed in Germany (Hospital of the "Malteser Betriebsträgergesellschaft Sachsen GmbH' in Kamenz). The hospital will be located nearly the town Kamenz (Eastern Saxon region). The location is a part of the place Kamenz (land register sections 153g,h,i,j,k,l,m and 153-16). The total area is 30520 m², the effective area is 20200m². The hospital will have a capacity of 210 sickbeds and a day-hospital (psychiatry) for 20 patients.
In addition to air-conditioning and refrigeration requirements, the heat demand for room and water heating shall be met. in the demonstration plant, a fuel cell for combined heat and power generation and an adsorption plant are used. The fuel cell will provide not only the base load for the adsorption machine and heating but also a part of the power supply to the building. The peak-load of the adsorption machine will be covered by solar collectors.
In the project planning phase, computer simulations using simulation software TRNSYS are carried out, by means of which the demand for the different forms of energy will be optimised for the demonstration plant. Installation and implementation of the plant are followed by the measurement phase (about 2 years), the result of which will be optimization of the individual systems and the whole system.
Highly efficient air-conditioning technology will operate in the building using a minimum of primary energy as a result of cooling ceilings combined with DEC1 equipment in the ventilation plant. An adaptive, self learning control system will be integrated into the plant. On the basis of the detailed weather forecast, this system determines the respectives actual energy demand for air-conditioning and heating in a sliding and predictive way, and accordingly adapts the mode of plant operation. Considerable energy savings are expected, in particular, as a result of the predictive operation of heating and air-conditioning.

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Topic(s)

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DEM - Demonstration contracts

Coordinator

DBI GAS UND UMWELTTECHNIK GMBH
EU contribution
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Address
TORGAUER STRAßE 114
04347 LEIPZIG
Germany

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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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