Rational supply of power, heat and cooling in buildings

3,37

MB

demonstrated by a hospital in Dresden.

74

stron

2985

ID

DBI Gas- und Umwelttechnik GmbH

2001

rok

Table of contents

1 Project Details . 1

2 Aim and general description 7

2.1 Aim of the project 7

2.2 Description of the Site 7

2.3 Description of the Installation 9

2.3.1 Summary overall system 9

2.3.2 Fuel Cell. 11

2.3.3 Adsorption Chiller. 14

2.3.4 Solar Collectors 15

2.3.5 Heat and Ice Storage 17

2.3.6 Cooling ceilings. 19

2.4 Description of the Performance Monitoring System. 20

2.4.1 Data set 20

2.4.2 Data processing 20

3 Construction, installation and commissioning 22

3.1 Suppliers of Equipment and Services. 22

3.2 Project Management 23

3.3 Problems, Solutions, Successes 24

3.4 Modifications and Over-runs 27

3.5 Time schedule 28

3.6 Costs . 29

4 Operation and Results 30

4.1 Operating History. 30

4.2 Performance. 33

4.2.1 Fuel Cell. 33

4.2.1.1 Efficiencies . 33

4.2.1.2 Stack performance . 37

4.2.1.3 Start up and responding time. 39

4.2.1.4 Life / endurance and degradation of the fuel cell. 41

4.2.1.5 Composition of the process gases . 42

4.2.2 Adsorption Chiller. 43

4.2.3 Solar energy plant . 46

4.2.4 Storage. 49

4.2.5 System interaction. 53

4.3 Success of the Project 55

4.4 Operating Costs . 55

4.5 Future of the installation 55

4.6 Economic viability. 56

4.7 Environmental impact 58

5 Publicity, commercialisation and other developments. 62

5.1 Publicity and other Publications. 62

5.2 Patent activity. 64

5.3 Outlook . 64

5.4 Commercialisation 65

6 Lessons learned / Conclusions 68

7 References. 69

8 Photographs. 70