This project included:

• the investigation into the 'state of the art' of the construction of connections to pipelines in operation, and
• the production of a handbook for the planning and building of District Heating Networks.
• the drafting of recommendations on the design parameters for smooth pipe bends in district heating/cooling pipelines.

The project results are available in three reports which cover:

1. Guideline to planning and Building of District Heating Networks
   • Demand for Thermal Energy
   • Supplying Thermal Energy
   • Principles of Network Design and Cost Factors
   • Planning Heat Distribution Networks
   • Pipeline Laying Methods
   • Typical Sequence for Implementing Construction Work associated with a District Heating Project
2. Bend pipes
   • Laying of bend-pipes
   • Manufacture of bend-pipes
   • Application of bend-pipes for large dimensions
3. Execution of connections to pipelines in operation
   • Welding to water-filled pipes
   • Principles for making pipeline connections without interruption of service
   • Commercially available drilling-in machines
   • Evaluating drilling-in machines
   • Safety aspects
   • Cost comparison

Part 1: Guideline to planning and Building of District Heating Networks
[1-page, 12Kb]