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Use of Natural Refrigerants in Supermarkets
Table of Contents
Preface
1 Summary and conclusions
1.1 Introduction
1.2 Objective
1.3 Results
1.4 Conclusion
1.5 Background
1.6 The system
2 Natural refrigerants in Fakta Beder
2.1 System principle
2.2 Propane system
2.3 CO2 system
2.4 Display cases and heat exchangers
2.5 Compressor dimensioning
2.5.1 Summary of information
2.6 Refrigerants
2.6.1 Propane and CO
2.6.2 Brine
3 Component dimensioning
3.1 Pressure Equipment Directive
3.2 Design of pressure system
3.2.1 Comments
3.3 Main component summary - propane
3.4 Use of propane system
3.4.1 Machine card
3.5 CO2 system
3.6 Brine system
3.7 Safety
3.7.1 Safety – engine room
3.7.2 Safety – operation
3.7.3 Safety – standstill (CO2)
3.7.4 Safety – service
3.8 Servicing the system
3.8.1 Propane
3.8.2 CO2
3.8.3 Propane system
3.8.4 CO2 system
3.9 Control
3.9.1 Propane compressors
3.9.2 Propane condenser
3.9.3 Propane expansion valves
3.9.4 Brine pumps
3.9.5 CO2 compressor
3.9.6 Cascade heat exchanger adjustment
3.9.7 KA value
3.10 Daily operation
3.11 Zone division and electrical installations
3.11.1 Zone 2
3.11.2 Electrical installations
3.11.3 Propane
3.11.4 Inherent safety
3.11.5 Electrical components in Fakta Beder
3.12 ATEX directive
3.12.1 ATEX and Fakta Beder
3.12.2 Comments
4 Energy
4.1 Reference outlets
4.1.1 Inaccuracy
4.1.2 Random testing
4.1.2.1 Breakdown by lighting
4.1.3 Outlets
4.1.4 Total energy consumption (reference outlets)
4.2 Energy meters at Fakta Beder
4.2.1 Power consumption (outlet)
4.2.2 Energy consumption (outlet)
4.2.3 Power consumption by refrigeration/freezing component
4.2.4 Power consumption (refrigeration/freezing system)
4.2.5 Comparison between measured consumption and consumption broken by key figures
4.3 Optimisation
4.4 Conclusion (energy)
5 Project finances
5.1 Statement of project finances
5.1.1 Total extra costs are mainly affected by the following three factors:
5.2 Conclusion (project finances)
6 Results
List of references
Appendix 1
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Appendix 7
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