| Abstract | 第4页 |
| 摘要 | 第5-9页 |
| Chapter 1 Introduction | 第9-15页 |
| 1.1 The source of topic | 第9页 |
| 1.2 Review of district heat?ng in Ukra?ne | 第9-11页 |
| 1.2.1 Estimate of the district heating sector of Ukraine | 第9-10页 |
| 1.2.2 Development of Ukrainian district heating reforms and projects | 第10-11页 |
| 1.3 Research background and significance | 第11-13页 |
| 1.3.1 Benefits of DH system and its problems | 第11-12页 |
| 1.3.2 Introduction of DVSP DH | 第12-13页 |
| 1.4 Foreign and Domestic researches and analysis | 第13-14页 |
| 1.5 The main study work in the master’s thesis | 第14-15页 |
| Chapter 2 Theoretical analysis of d?strict heat?ng w?th d?stributed var?able speed рump system | 第15-37页 |
| 2.1 Hydraulic calculation of heating network | 第15-20页 |
| 2.1.1 Heating network hydraulic calculation. Basic equations | 第15-17页 |
| 2.1.2 Heating system calculation | 第17-18页 |
| 2.1.3 Introduction of subject of study | 第18-20页 |
| 2.2 Definition of DH with DVSP system | 第20-24页 |
| 2.2.1 General information about DVSP system | 第20-22页 |
| 2.2.2 Definition of zero pressure difference point in DVSP system | 第22-24页 |
| 2.3 Power consumption analysis | 第24-27页 |
| 2.3.1 Analysis of power consumption of traditional district heating system | 第24-26页 |
| 2.3.2 Analysis of power consumption of DH with DVSP system | 第26-27页 |
| 2.3.3 Comparative analysis of power consumption | 第27页 |
| 2.4 Theoretical analysis of factors affecting on power consumption of district heatingpumping system | 第27-36页 |
| 2.4.1 Effect of value of heat source internal pressure loss on power consumption | 第27-29页 |
| 2.4.2 Influence of value of available pressure head of heat consumers on powerconsumption | 第29-30页 |
| 2.4.3 Influence of value of relative linear pressure drop on power consumption | 第30-31页 |
| 2.4.4 Influence of value of water flow rate in the heating system on power consumption | 第31-33页 |
| 2.4.5 Influence of location of zero pressure difference point on power consumption | 第33-36页 |
| 2.4.5.1 Mathematical formulation of zero pressure difference point’s location | 第33-34页 |
| 2.4.5.2 Comparative analysis of power consumption | 第34-36页 |
| 2.5 Chapter’s summary | 第36-37页 |
| Chapter 3 Variable flow control in the DH with DVSP system | 第37-48页 |
| 3.1 DH system part-load requirements | 第37-40页 |
| 3.1.1 DH system part-heat-load calculation | 第37-38页 |
| 3.1.2 Duration of DH system operation at part-load | 第38-40页 |
| 3.2 Variable flow adjustment | 第40-43页 |
| 3.3 Power consumption and economics in DH system with variable flow control | 第43-47页 |
| 3.3.1 Algorithm for calculation of pumping system power consumption at variableflow control | 第43-44页 |
| 3.3.2 Power consumption of pumping system in DH at variable flow control | 第44-47页 |
| 3.3.2.1 Power consumption in DH at variable flow control in stage | 第44-45页 |
| 3.3.2.2 Power consumption in DH at variable flow control according to outdoortemperature | 第45-47页 |
| 3.3.3 Comparative analysis of power consumption | 第47页 |
| 3.4 Chapter’s summary | 第47-48页 |
| Chapter 4 Est?mation of efficiency of DVSP system in DH | 第48-76页 |
| 4.1 Significance of estimation of the efficiency of DH with DVSP system | 第48-50页 |
| 4.1.1 Definition of the operating range of pump rotation speed | 第48-50页 |
| 4.1.2 Definition of preferred operation region for VSPs | 第50页 |
| 4.2 Theoretical analysis of DVSP system efficiency | 第50-59页 |
| 4.2.1 Estimation of single-pump station operation by Curve-based method | 第50-52页 |
| 4.2.2 Estimation of in-parallel pumps operation | 第52-56页 |
| 4.2.3 Analysis of energy saving effect | 第56-59页 |
| 4.2.3.1 Power consumption calculation | 第56-57页 |
| 4.2.3.2 Specific energy use calculation | 第57-59页 |
| 4.3 Analysis of operation of pump station of Consumer | 第59-65页 |
| 4.3.1 General information about object of analysis | 第59-60页 |
| 4.3.2 Overview of actual operation of pump station of Consumer | 第60-62页 |
| 4.3.3 Efficiency estimation for pump station of Consumer | 第62-65页 |
| 4.4 Analysis of pump station of Heat source | 第65-70页 |
| 4.4.1 General information about object of analysis | 第65-67页 |
| 4.4.2 Overview of actual operation conditions of heat source pumps group | 第67-68页 |
| 4.4.3 Group efficiency estimation for pump station of Heat source | 第68-70页 |
| 4.5 Comparative analysis of operation of several pump stations | 第70-74页 |
| 4.6 Comparative analysis of pumping system power consumption at differentadjustment methods | 第74-75页 |
| 4.7 Chapter's summary | 第75-76页 |
| Conclusion | 第76-77页 |
| References | 第77-82页 |
| Appendix | 第82-100页 |
| Acknowledgements | 第100-101页 |
| Resume | 第101页 |
