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Design of DISTRICT HEATING / DISTRICT COOLING pipelines - bonded system according to EN 13941

This online course is meant for engineers, designers and utility owners who are dealing with pre-insulated district heating and district cooling networks. After passing the course participants will get all needed basic knowledge regarding pipeline design and engineering.

The course consists of 4 blocks - it is possible to pass all blocks or some specific blocks.

The course will be held online in English.
Participants who will successfully pass the course (or blocks of the course) will receive an Enerhack certificate.
Participants from Estonia will receive training points (TP) from Estonian Association of Thermal Engineers

Aleksandr Ledvanov

HeatConsult, Technical director

Aleksandr has more than 15-years experience in district heating design engineering. Under his leadership there were designed more than 500 km of pipelines at different part of the world - Scandinavia, Baltics, Germany and Latin America.

He is leading the one of the adaptations of the standard EN 13941 “District heating pipes”

COURSE SCHEDULE

BLOCK 1

Monday, January 16

Tuesday,
January 17
9:00 - 15:00 (CET), both days

  • Basics of district heating design
  • Standard EN 13491 overview
  • Changes in direction
  • Branches in district heating systems
  • Reduction of diameter in district heating systems
  • Twin pipe systems and differences in design comparing with single pipe systems
  • Pipelines for higher temperature than 140°C (max temperature according to EN 13941)
  • District heating expansion pads
  • District heating leakage system
  • Specifics of district cooling engineering and difference with district heating
  • DH simple pipe sizing (Logstor calculator, hand calculations)
BLOCK 2

The date will be selected after the group is set
9:00 - 15:00 (CET)

  • Hydraulics in district heating networks
BLOCK 3

The date will be selected after the group is set
9:00 - 15:00 (CET)

  • Stress calculations in district heating networks
BLOCK 4

The date will be selected after the group is set
9:00 - 15:00 (CET)

  • Practical examples of district heating and cooling design and engineering

DESCRIPTION OF THE COURSE

General presentation:
Pipe systems, materials, media Pipe
Temperature / Different pipe's catalogues / Valid areas / EN – codes
Definition of pipe systems:
Temperature / pressure – lifetime
Project classes: A-B and C, safety
Number of full load cycles
Fundamentals of bonded pipe systems in soil:
Friction, expansion, natural fixpoint
Straight pipe sections:
Allowable axial stress level, 150 / 170 / 190 MPa or higher
Limit stability
Use of different calculators, hand calculations on practical examples
Trench
Trench backfill material – compaction, what to inspect on site
Pipes in protection pipe
Lifting several pipes
Max trench length exposed with heat on
Shallow installation
Max. soil cover
Bends
Calculation of expansion zone
80° to 90°, other angles 10° to 80°
Calculators and hand calculations for L / Z and U bends
Casing Joint

Material properties
Shrink joints
Welded joints
Monitoring systems:
Detect principles (resistance / impulse)
Wiring
Commissioning
Branches:
45° branch – max distance to next expansion
90° branch - movement
Max length of branch
Examples
Reductions:
Reductions in media pipe
TwinPipe design:
Design (what is different to single pipe)
Merging from single to TwinPipe
Handling of Twinpipe
Flexible pipes:
Different types
Cu / Steel / PEX / AluPex – design rules
PRICE OF THE COURSE
REGISTER TO THE COURSE