district heating & cooling services kongresas... · 2019. 1. 11. · may 2011 dh network...

DISTRICT HEATING & COOLING SERVICES

DH Network Simulations - Important tool in

operation and construction of DHC systems by Vesa-Pekka Vainikka

PÖYRY COMPANY PRESENTATION

Pöyry is a global consulting and engineering

company dedicated to balanced sustainability

and responsible business

7 000 experts in about 50 countries

Project experience in over 100 countries

15 000 projects annually

Net sales in 2010 EUR 682 million

Listed on the NASDAQ OMX Helsinki

WIDE RANGE OF DEEP EXPERTISE

URBAN & MOBILITY

Urban planning

Real estate development

Transport planning

Rail infrastructure

Road infrastructure

Construction

management

Building design

WATER & ENVIRONMENT

Water

Wastewater

Waste

Environment

INDUSTRY

Pulp and paper

Chemicals

Minerals processing

ENERGY

Hydropower

Thermal power inc DHC and EE

Bio-renewables

Oil and gas

Nuclear energy

Transmission and distribution

May 2011 DH NETWORK SIMULATIONS 4

DH NETWORK SIMULATIONS

Hydraulic analysis has an important role in

operation and construction of DH systems

Design of new pipelines in order to find appropriate

pipe diameters with minimum possible investment

cost

Design of connection of heat supply areas

Finding the "bottle necks" in networks i.e. pipes

with biggest pressure losses

Determination of heat transmission capacity of a

network when new temperature programmes for

DH systems are investigated

Operational planning (dispatching) of different

heat production units

Modeling failure and emergency situations of DH

systems

Analysis tool when a change from the constant flow

scheme to the variable scheme is considered

Design tool when new (variable speed) pumps at

production plants or at booster pump stations are

planned

Planning of operation of booster pump stations

Training of DH operators and designers


SIMULATION TOOLS USED BY PÖYRY FINLAND OY

Grades Heating by Process Vision Ltd

Market leading simulation tool in Nordic

countries for district heating network

design and simulation

Utilization of map templates

Dimension Tools

– Pipelines

– Pumps & valves

Production plant optimsation

Accurate consumer modeling

Versatile result monitoring and reporting


Mathematical method for modern DH

network simulation software

Steady state code

The mathematical method for solving

rather complicated looped flow and

pressure distribution problem is based on

the linear theory method with nodal

pressure values as unknown.

The concepts of the linear theory method

are closely related to widely used finite

element method (FEM).

The code applies sparse matrix

techniques to achieve the maximum

memory capacity and calculation efficiency

LINEAR THEORY METHOD


IT IS NOT ONLY THE SOFTWARE ! YOU NEED TO KNOW, HOW TO USE IT.

EVEN WITH STEADY STATE (NON-DYNAMIC) TOOL COMPLEX ANALYSIS CAN BE

PERFORMED BY APPLYINING PROPER KNOW-HOW AND EXPERIENCE, HOW TO DO IT.

Scope of Work

Case by Case Boundaries

Preparation of the Hydraulic Basic Model

Draft & Final Report

Simulation of various cases

Pro

ject kic

k-o

ff

Collection of Initial Data

QA Definition

Quality Assurance

Le

sso

ns le

arn

t

Final Analysis and Report

Pro

posal P

rocess or

Main

pro

ject pla

n

Modeling and Documentation Phase

E1

Clo

sin

g s

essio

n w

ith

clie

nt

Pre

limin

ary

analy

sis

m

eeting

CP 3

Definition Phase

G1

CP 0

Model Updating

Fin

al re

port

publis

hin

g

CP 4

Data

Convers

ion

C

P 1

Revie

w o

f th

e c

alib

ration

C

P 2

G0

Decis

ion o

f an a

ssig

nm

ent

Closing Cases

Network analysis service for the district heating network. The service can be part of a project or

an individual assignment.

Process Flow for Pöyry’s network analysis services

SELECTED REFERENCES FOR DHC NETWORK SIMULATIONS


LAHTI ENERGIA OY, FINLAND

2009 : Building of DH Network simulation

model, hydraulic analysis of Lahti DH

network (heat demand 500 MW)

DH network Analysis 2009-2010

– Building and calibrating of the hydraulic DH

network model with 11500 nodes and

11500 pipe branches

– Analysis of the influence of the extension

of the main CHP plant’s heat output to the

DH system;

– Survey of the requirements for DH network

replacements and new constructions;

– Analysis of the booster pump operations;

Modelling of the future network operations

– Emergency operational modes

– Centralising reserve and peak load

capacity


PORVOON ENERGIA OY, FINLAND

Design and procurement of a DH booster pump station 2011- ongoing

Feasibility study on the Solar District Heating 2010 (in co-operation with Pöyry, Hamburg)

DH network analysis with hydraulic simulation 2010

Skaftkärr zone, options for energy production in energy efficient residential area, feasibility of district heating (in association with City of Porvoo and Sitra 2009)


FORTUM HEAT AND POWER, ESPOO,

FINLAND

2005: Simulations of the Espoo DH

network (heat demand 750 MW):

– to analyse the influence of the

extension of the CHP plant’s heat

output and a new 12 km

transmission DH line on the entire

DH system; review of optimal

locations and main parameters of

new booster pump stations to be

built on the transmission line;

verification of the diameters for the

transmission line and mapping of the

needs to strengthen the DH network.

2010: Feasibility study of 60 MWc DC

system, simulations of the DC network


Confidential, CANADA

Preparation of technical concept of DH

network hydraulic analysis, and CAPEX

& OPEX estimates for two DH schemes

2010-2011 in Canada

Joint projects with Pöyry Vancouver Inc.

QIQ

Limits of Pre-fabricated Substation

Expansion

Temperature ControllersTC1 TC2KIS

Pump ControlsEIA EIA

Heating

M

PIA+- PS

M

Primary

Return

PITI PI

City Water

TE

F

TE

DHW

Recirc.

Primary

Supply

PITI

M M

PITI

TI

TE TE

TE

TE T out

PI

TI

TI

F

F


Confidential, FRANCE

DH network analysis (2011)

Joint project with Pöyry SAS (France)


BEIJING DISTRICT HEATING GROUP, CHINA

Design services for DH accumulator project

2007-2008

– Operational modes and influence of the

accumulator to the entire DH system

Hydraulic simulation and analysis on Beijing

DH-network, 2004

– Interconnection of Gaojing CHP plant

(heat output 750 MW) to the main DH

network

Feasibility study of Olympic park DH and

DC Scheme, 2002

– Basic design of DH network,

dimensioning and routing

– Heat output 1200 MW, cooling load

350 MW

Diagnosis and retrofitting solutions of Beijing

DH network, 2001-2002


KOREA DISTRICT HEATING CORPORATION, KOREA

Koyang/Paju DH network zone in Seoul 2005,

Heat load 1900 MW

– Basic design and technical specification of the

CHP plant

– Process design of main DH equipment at Paju

350 MWe / 300 MWth

– Hydraulic DH network analysis

– Focused on to review of parallel operation of

two large size CHP plant with peak boilers

– Connection of 2 x 28 000 m³ heat accumulators


Consultancy Services for LTGHN scheme

Technical services on the development of DH/CHP schemes including:

Review and establishment heat loads

Design of DH network - > CAPEX, operational modes

– Design of new pipelines in order to find appropriate pipe diameters

with minimum possible investment cost

– Design of connection of heat supply areas

– Operational planning (dispatching) of different heat production units

LONDON DEVELOPMENT AGENCY, UK


IRIDE (former A.E.M) Torino S.p.A, ITALY

A.E.M Torino S.p.A, Italy

Since 1994 Pöyry has done consultancy for AEM

– Stress monitoring and analysis

– Dynamic analysis

– Accumulator feasibility study and design

– Review of security of heat supply

– Review of pumping and pressurizing

– Etc.

Hydraulic analysis 2006

– On the connection of the new Torino Nord DH CHP plant (400 MWe / 600 MWth) to Torino Nord DH network

– On the interconnection of Torino Sud DH and Nord DH networks

Technical District Heating Consultancy inc. DH network analysis for Turin and Metropolitan District Heating System focusing on connection of new CHP plant and heating zones.


OAO FORTUM, RUSSIA

The integrated DH network would be favourable for optimal and

extended operation of CHP and most economical HOB plants.

Based on the analysis OAO Fortum initiated measures towards

the integrated DH network in Chelyabinsk.

Hydraulic analysis of the Chelyabinsk (Russia)


Hydraulic analysis of the Tyumen (Russia)


Hydraulic analysis of the Surgut (Russia)


– Hydraulic simulation model creation & calibration and

hydraulic analysis of the DH networks

– Analysis on options to apply an integrated

DH network

– Preparation of preliminary ideas for reconstruction

investment


Contact:

Vesa-Pekka Vainikka

Senior Vice President, District Heating and Cooling

Pöyry Finland Oy, Energy

Tekniikantie 4 A, P.O.Box 93, FIN - 02150 Espoo, Finland

tel. +358 10332 4426, GSM +358 40 580 8556, fax. +358 10332 4981

[email protected]

http://www.poyry.com

THANK YOU!

district heating & cooling services kongresas... · 2019. 1. 11. · may 2011 dh network...

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