Geothermal Heat Pump Systems

Contents
Geoespatial Distribution of the Efficiency and Sustainability of Different Energy Sources for Geothermal Heat Pumps in Europe
1 Introduction
2 Heat Pumps Technology
3 Analysis Description
3.1 Heat Pump Selection
3.2 Input Energies
4 Costs and Emissions Comparative
5 Sensitivity Analysis
5.1 Sensitivity Related to COP Improvement in EHPs
5.2 Sensitivity Related to COP Improvement in GEHPs
5.3 Sensitivity Related to Emissions in Electricity Production
6 Conclusions
References
Low-Enthalpy Geothermal Applications
1 Introduction
2 Geothermal Olympic-Size Outdoor Swimming Pools
2.1 Introduction
2.2 The Beatty Park Leisure Centre Outdoor Swimming Pools
2.3 Energy Balance
2.4 Model Data
2.5 Model Analysis
3 Conclusions
4 Viability of Ground Source Heat Pumps (GSHP) Against Air Source Heat Pumps (ASHP) for Domestic Applications
5 Introduction
6 Experimental Systems
6.1 Common Construction Details of the Houses
6.2 GSHP System Description
6.3 ASHP System Description
7 Instrumentation
7.1 Sensor Calibration
7.2 Data Collection and Processing
8 Analysis
8.1 Comparison of Operating Conditions
8.2 Heating and Cooling Capacities and COP
9 Results and Discussion
9.1 Basic Data
9.2 Air Entering the FCU
9.3 Groundwater Temperature
9.4 COPs of GSHP and ASHP Systems
10 Conclusions
11 Appendix B
References
Energy Geostructures
1 Introduction
2 Energy Pile Fundamentals
2.1 Ground Source Heat Pump Systems (GSHPs)
2.2 Types of Ground Heat Exchangers (GHEs)
2.3 Heat Exchange Operation
2.4 Energy Pile Materials and Configurations
2.5 Benefits and Limitations
2.6 Applications and Developments
3 Thermal Behavior of Energy Piles
3.1 General Principles
3.2 Heat Transfer Within Energy Piles
3.3 Thermal Analysis of Energy Piles
4 Mechanical Behavior of Energy Piles
5 Design of Energy Piles
5.1 General Considerations
5.2 Current Standards
5.3 Thermal Design
5.4 Mechanical Performed-Based Design
6 Site Investigation for Energy Pile Design
6.1 Design Stages
6.2 Design Parameters
6.3 Determination of Design Parameters
7 Construction Recommendations for Energy Piles
7.1 Materials
7.2 Pipes Features and Bending
7.3 Pipes Fixing
7.4 Installation
7.5 Quality Control
References
Multiparametric Evaluation of Electrical, Biogas and Natural Gas Geothermal Source Heat Pumps
1 Introduction
2 Research Scope
3 Practical Procedure
3.1 Economic Evaluation
3.2 Environmental Footprint
4 Discussion
4.1 Overall Process Economy
4.2 Initial Investment
4.3 Environmental Impact
4.4 System Availability
4.5 Global Discussion
5 Conclusions
References
Transient Thermal-Resistance-Capacitance Model for U-Tube Ground Heat Exchanger
1 Introduction
1.1 Thermal Resistance Network Within a Borehole
1.2 How to Determine the Specific Thermal Resistances
1.3 How to Establish the Transient Thermal-Resistance-Capacitance Model
References
Technical Optimization of the Energy Supply in Geothermal Heat Pumps
1 Introduction
2 Methodology
2.1 Suggested System Description
2.2 Workflow
3 Technical Calculation
3.1 Thermal Module
3.2 Power Module
3.3 System Energy Contribution
4 Economic and Environmental Analysis
4.1 Economic Analysis
4.2 Environmental Evaluation
5 Discussion
5.1 Sensitivity Analysis
6 Conclusions
Appendix A
References
The Role of Geothermal Heat Pump Systems in the Water–Energy Nexus
1 Introduction and Background
1.1 Challenges in Urban Energy and Water Infrastructures
1.2 The Water–Energy Nexus: An Opportunity for Resilience
2 Surface Geothermal Energy Systems
2.1 Types and Functions
2.2 Variables Affecting Design and Construction
3 Sustainable Drainage Systems (SuDS)
3.1 Types and Functions
3.2 Variables Affecting SuDS Design and Construction
4 The Combination of Surface Geothermal Energy and SuDS
4.1 Description of the System
4.2 Main Experiences
4.3 Gaps Identified
5 Future Prospects
References
Performance Prediction of Hybrid GSHP System Considering Ground Thermal Balance
1 Introduction
2 Operation Analysis And Performance Prediction for a GSHP System Compounded With Domestic Hot Water (DHW) System
2.1 Description of the GSHP System
2.2 Operating Characteristic of the GSHP System
2.3 Performance Prediction of the GSHP System
2.4 Summary
3 Schemes to Alleviate the Underground Heat Accumulation of the Ground Source Heat Pump
3.1 Design and Operation Parameter Optimization Analysis of GSHP System Assisted with Cooling Tower
3.2 Ground Temperature Active Restoration Scheme
3.3 HGSHP System Assisted with Chiller
3.4 Summary
References
5th Generation District Heating and Cooling Networks as a Heat Source for Geothermal Heat Pumps
1 5th Generation District Heating and Cooling Networks as a Heat Source for Geothermal Heat Pumps
1.1 Classification of District Heating and Cooling Networks
1.2 Comparison of Different Terms and Definitions of 5GDHC
1.3 5GDHC Network Types (active, passive, hybrid)
2 Energy Sources to Supply a Geothermal Heat Pump via 5GDHC
2.1 Very Shallow Geothermal Potential
2.2 Large-Scale Geothermal Collector System
2.3 Frozen Soil Storage
2.4 5GDHC as an Energy Source Itself
2.5 External Dry Cooler
2.6 Examples of 5GDHC with different Heat Sources in Germany
References
Techno-Economic Assessment of Shallow Geothermal Heat Pump System with Energy Piles
1 Introduction
2 Numerical Models
2.1 Single BHE Model
2.2 Multiple EPs Model
2.3 Boundary and Initial Conditions
3 Economic Model
4 Results and Discussion
4.1 Energy Performance
4.2 Effects of Fluid Flow Rate
4.3 Economic Analysis
5 Conclusions
References