Jussi Saari

Post-doctoral researcher

Energy

LUT School of Energy Systems

Lappeenranta

Jussi.Saari@lut.fi

+358 40 687 9483

Research areas

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

Computer Science (miscellaneous)

Control and Optimization

Biography

Current research is mainly focused on optimization and modelling of heat exchangers. A particular focus is condensing heat exchangers of steam power plants, but also difficult optimization problems of various other plants, cycles and components.
Other interest are power plant process modelling, biomass pyrolysis (torrefaction and hydrothermal carbonisation) and process integration.

Researcher information

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Publications and other content

Techno-economic assessment of hemicellulose extraction of softwood sawdust coupled with pelletising

2025

Publication type

A1 Journal article (refereed), original research

Author(s)

Melin Kristian, Sermyagina Ekaterina, Saari Jussi, Lahti Jussi, Vakkilainen Esa, Mänttäri Mika, Kallioinen-Mänttäri Mari

Energy transition

University Management

LUT School of Engineering Sciences

LUT School of Energy Systems

Economic optimization and global sensitivity analysis of power-to-heat systems in a small district heating network: a case study

2024

Publication type

A4 Conference proceedings

Author(s)

Inkeri Eero, Saari Jussi, Zaynetdinov Konstantin, Kozlova Mariia, Sikiö Päivi, Tynjälä Tero

Energy transition

Energy

LUT Business School

LUT School of Energy Systems

Economic optimization of a chevron-plate pentane evaporator for a modern high-temperature heat pump

2024

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Pitkäoja Antti, Uusitalo Antti, Lipiäinen Satu, Ritvanen Jouni

Energy transition

Energy Engineering and Power Technology

Statistics, Probability and Uncertainty

Renewable Energy, Sustainability and the Environment

Control and Optimization

LUT School of Energy Systems

Global sensitivity analysis of nuclear district heating reactor primary heat exchanger and pressure vessel optimization

2024

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Kozlova Mariia, Suikkanen Heikki, Sermyagina Ekaterina, Hyvärinen Juhani, Yeomans Julian Scott

Energy transition

Energy Engineering and Power Technology

Nuclear Energy and Engineering

Statistics, Probability and Uncertainty

Energy

Energy (miscellaneous)

Control and Optimization

LUT Business School

LUT School of Energy Systems

Hydrothermal carbonization of industrial kraft lignin: Assessment of operational parameters

2024

Publication type

A1 Journal article (refereed), original research

Author(s)

Salcedo-Puerto Orlando, Mendoza-Martinez Clara, Saari Jussi, Vakkilainen Esa

Other focus area

LUT School of Energy Systems

Fast oxidative pyrolysis of eucalyptus wood residues to replace fossil oil in pulp industry

2023

Publication type

A1 Journal article (refereed), original research

Author(s)

Mendoza-Martinez Clara, Sermyagina Ekaterina, Saari Jussi, Faria Ramos Vinicius, Vakkilainen Esa, Cardoso Marcelo, Alves Rocha Elém Patrícia

Energy transition

Energy Engineering and Power Technology

LUT School of Energy Systems

Novel BECCS implementation integrating chemical looping combustion with oxygen uncoupling and a kraft pulp mill cogeneration plant

2023

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Peltola Petteri, Kuparinen Katja, Kaikko Juha, Sermyagina Ekaterina, Vakkilainen Esa

Energy transition

Energy Engineering and Power Technology

Environmental Engineering

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Optimization of Natural Circulation District Heating Reactor Primary Heat Exchangers

2023

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Suikkanen Heikki, Mendoza-Martinez Clara, Hyvärinen Juhani

Energy transition

Energy Engineering and Power Technology

Nuclear Energy and Engineering

Energy

Engineering

LUT School of Energy Systems

Recovery boiler back-end heat recovery

2023

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Kaikko Juha, Sermyagina Ekaterina, Hamaguchi Marcelo, Cardoso Marcelo, Vakkilainen Esa, Haider Markus

Energy transition

Energy Engineering and Power Technology

LUT School of Energy Systems

Techno-economic analysis of hydrothermal carbonization of pulp mill biosludge

2023

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Martinez Mendoza Clara, Kuparinen Katja, Lipiäinen Satu, Hamaguchi Marcelo, Cardoso Marcelo, Vakkilainen Esa, Haider Markus

Business and society

Energy transition

Energy Engineering and Power Technology

LUT School of Energy Systems

Improving Kraft Pulp Mill Energy Efficiency through Low-Temperature Hydrothermal Carbonization of Biological Sludge

2022

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Sermyagina Ekaterina, Kuparinen Katja, Lipiäinen Satu, Kaikko Juha, Hamaguchi Marcelo, Mendoza-Martinez Clara

Energy transition

Energy Engineering and Power Technology

Process Chemistry and Technology

Waste Management and Disposal

Engineering (miscellaneous)

LUT School of Energy Systems

Evaluation of the Energy Efficiency Improvement Potential through Back-End Heat Recovery in the Kraft Recovery Boiler

2021

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Sermyagina Ekaterina, Kaikko Juha, Haider Markus, Hamaguchi Marcelo, Vakkilainen Esa

Forestry

Energy Engineering and Power Technology

Control and Optimization

LUT School of Energy Systems

Evaluation of thermochemical routes for the valorization of solid coffee residues to produce biofuels: A Brazilian case

2021

Publication type

A1 Journal article (refereed), original research

Author(s)

Mendoza Martinez Clara Lisseth, Saari Jussi, Melo Yara, Cardoso Marcelo, de Almeida Gustavo Matheus, Vakkilainen Esa

Agronomy and Crop Science

LUT School of Energy Systems

Hydrothermal carbonization of lignocellulosic agro-forest based biomass residues

2021

Publication type

A1 Journal article (refereed), original research

Author(s)

Mendoza Martinez Clara, Sermyagina Ekaterina, Saari Jussi, Silva de Jesus Marcia, Cardoso Marcelo, Matheus de Almeida Gustavo, Vakkilainen Esa

Forestry

Fuel Technology

Renewable Energy, Sustainability and the Environment

Energy

Waste Management and Disposal

LUT School of Energy Systems

Techno-economic optimization of a district heat condenser in a small cogeneration plant with a novel greedy cuckoo search

2021

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Mendoza Martinez Clara, Kaikko Juha, Sermyagina Ekaterina, Mankonen Aleksi, Vakkilainen Esa

Energy transition

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

Control and Optimization

LUT School of Energy Systems

A Superstructure-based Methodology for Simultaneously Sizing and Arranging Additional Evaporator Bodies in Multiple-eﬀect Evaporator Plants

2020

Publication type

A1 Journal article (refereed), original research

Author(s)

Neto Márcio R. Vianna, Saari, Jussi, Vakkilainen, Esa K., Cardoso Marcelo, Oliveira Éder D.

High-Efficiency Bioenergy Carbon Capture Integrating Chemical Looping Combustion with Oxygen Uncoupling and a Large Cogeneration Plant

2020

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Peltola Petteri, Tynjälä Tero, Hyppänen Timo, Kaikko Juha, Vakkilainen Esa

Energy Engineering and Power Technology

Energy

LUT School of Energy Systems

Micro humid air turbine cycle – energy and exergy analyses and optimization

2020

Publication type

A4 Conference proceedings

Author(s)

Mankonen Aleksi, Kaikko Juha, Saari Jussi, Vakkilainen Esa, Sergeev Vitaliy

Negative Carbon Dioxide Emissions from Eucalyptus Pulp Mill Including Biosludge HTC Treatment

2020

Publication type

B3 Unrefereed conference proceedings

Author(s)

Mendoza Clara, Kuparinen Katja, Martins Mateus, Cardoso Marcelo, Vakkilainen Esa, Saari Jussi

Chemical Engineering

LUT School of Energy Systems

Process integration of chemical looping combustion with oxygen uncoupling in a biomass-fired combined heat and power plant

2020

Publication type

A1 Journal article (refereed), original research

Author(s)

Peltola Petteri, Saari Jussi, Tynjälä Tero, Hyppänen Timo

Energy Engineering and Power Technology

Environmental Engineering

Engineering

LUT School of Energy Systems

Techno-economic optimization of a back pressure condenser in a small cogeneration plant with a novel greedy cuckoo search algorithm

2020

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Neto Márcio, Cardoso Marcelo, Mankonen Aleksi, Kaikko Juha, Vakkilainen Esa

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

Computer Science

Control and Optimization

LUT School of Energy Systems

Shell-and-tube heat exchanger optimization - considering problem formulation and tuning for different types of methods

2019

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Garcia Perez Manuel, Vianna Neto Marcio, Cardoso Marcelo, Vakkilainen Esa, Kaikko Juha

Fluid Flow and Transfer Processes

Energy (miscellaneous)

Control and Optimization

LUT School of Energy Systems

Shell-and-tube heat exchanger optimization - impact of problem formulation and cost function

2019

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Garcia Perez Manuel, Vianna Neto Marcio, Cardoso Marcelo, Vakkilainen Esa, Kaikko Juha

Energy (miscellaneous)

Control and Optimization

LUT School of Energy Systems

Thermo-ecological cost analysis of cogeneration and polygeneration energy systems - case study for thermal conversion of biomass

2019

Publication type

A1 Journal article (refereed), original research

Author(s)

Gładysz Paweł, Saari Jussi, Czarnowska Lucyna

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Cuckoo search for wind farm optimization with auxiliary infrastructure

2018

Publication type

A1 Journal article (refereed), original research

Author(s)

Afanasyeva Svetlana, Saari Jussi, Pyrhönen Olli, Partanen Jarmo

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Effect of integration method and carbonization temperature on the performance of an integrated hydrothermal carbonization and CHP plant

2018

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Kuparinen Katja, Sermyagina Ekaterina, Vakkilainen Esa, Kaikko Juha, Sergeev Vitaly

Process integration of chemical looping combustion with oxygen uncoupling in a biomass-fired combined heat and power plant

2018

Publication type

D3 Professional conference proceedings

Author(s)

Peltola Petteri, Saari Jussi, Tynjälä Tero, Hyppänen Timo

Thermo-ecological cost analysis of cogeneration and trigeneration energy systems – case study for thermal conversion of biomass

2018

Publication type

A4 Conference proceedings

Author(s)

Gładysz Paweł, Saari Jussi, Czarnowska Lucyna

Energy Engineering and Power Technology

Environmental Engineering

Renewable Energy, Sustainability and the Environment

Environmental Science (miscellaneous)

Energy (miscellaneous)

LUT School of Energy Systems

Integrated Approach to the Design of Wind Farm Infrastructure

2016

Publication type

A4 Conference proceedings

Author(s)

Afanasyeva Svetlana, Karppanen Janne, Saari Jussi, Partanen Jarmo, Pyrhönen Olli

Energy

LUT School of Energy Systems

Integration of hydrothermal carbonization and a CHP plant: Part 2 –operational and economic analysis

2016

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Sermyagina Ekaterina, Kaikko Juha, Vakkilainen Esa, Sergeev Vitaly

Energy Engineering and Power Technology

Fuel Technology

Chemical Engineering (miscellaneous)

Energy (miscellaneous)

LUT School of Energy Systems

Integration of torrefaction and CHP plant: Operational and economic analysis

2016

Publication type

A1 Journal article (refereed), original research

Author(s)

Sermyagina Ekaterina, Saari Jussi, Kaikko Juha, Vakkilainen Esa

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

Economics and Econometrics

LUT School of Energy Systems

Optimization of a Shell-And-Tube District Heat Condenser for a Small Back Pressure CHP Plant

2016

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Carvalho Mariana, Sermyagina Ekaterina, Vakkilainen Esa, Kaikko Juha

Technical, economic and uncertainty modelling of a wind farm project

2016

Publication type

A1 Journal article (refereed), original research

Author(s)

Afanasyeva Svetlana, Saari Jussi, Kalkofen Martin, Partanen Jarmo, Pyrhönen Olli

Economics, Econometrics and Finance

Energy

Engineering

Mathematics

LUT School of Energy Systems

Design of multifunctional bench-scale device for thermochemical processes

2015

Publication type

A4 Conference proceedings

Author(s)

Sermyagina Ekaterina, Nikku Markku, Saari Jussi, Kaikko Juha, Vakkilainen Esa

Fuel Technology

Process Chemistry and Technology

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Effect of heat integration method and torrefaction temperature on the performance of an integrated CHP-torrefaction plant

2015

Publication type

A1 Journal article (refereed), original research

Author(s)

Sermyagina Ekaterina, Saari Jussi, Zakeri Behnam, Kaikko Juha, Vakkilainen Esa

Energy

Engineering

LUT School of Energy Systems

Hydrothermal carbonization of coniferous biomass: Effect of process parameters on mass and energy yields

2015

Publication type

A1 Journal article (refereed), original research

Author(s)

Sermyagina Ekaterina, Saari Jussi, Kaikko Juha, Vakkilainen Esa

Fuel Technology

Process Chemistry and Technology

Biomaterials

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Pre-treatment of Coniferous Biomass via Hydrothermal Carbonization and Torrefaction: Mass and Energy Yields

2015

Publication type

A4 Conference proceedings

Author(s)

Sermyagina Ekaterina, Saari Jussi, Vakkilainen Esa

Fuel Technology

Process Chemistry and Technology

Renewable Energy, Sustainability and the Environment

LUT School of Energy Systems

Comparison of power plant steam condenser heat transfer models for on-line condition monitoring

2014

Publication type

A1 Journal article (refereed), original research

Author(s)

Saari Jussi, Kaikko Juha, Vakkilainen Esa, Savolainen Samuli

Energy Engineering and Power Technology

Energy

Energy (miscellaneous)

LUT School of Energy Systems

Heat transfer model and optimization of a shell‐and‐tube district heat condenser

2014

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Afanasyeva Svetlana, Vakkilainen Esa, Kaikko Juha

Energy Engineering and Power Technology

Fluid Flow and Transfer Processes

Energy (miscellaneous)

Control and Optimization

LUT School of Energy Systems

Technical, economic and uncertainty modelling of the wind farm project

2014

Publication type

A4 Conference proceedings

Author(s)

Svetlana Afanasyeva, Jussi Saari, Martin Kalkofen, Jarmo Partanen, Olli Pyrhönen

Statistics, Probability and Uncertainty

Statistics and Probability

Renewable Energy, Sustainability and the Environment

Economics and Econometrics

LUT School of Energy Systems

Bio-oil and biochar as additional revenue streams in South American Kraft pulp mills

2013

Publication type

A1 Journal article (refereed), original research

Author(s)

Hamaguchi Marcelo, Saari Jussi, Vakkilainen Esa

Integration of Torrefaction Reactor with Steam Power Plant

2013

Publication type

B3 Unrefereed conference proceedings

Author(s)

Saari Jussi, Zakri Bahnam, Sermyagina Ekaterina, Vakkilainen Esa

Energy Engineering and Power Technology

Renewable Energy, Sustainability and the Environment

Energy

LUT School of Energy Systems

Integration of torrefaction with steam power plant

2013

Publication type

D4 Published development or research report or study

Author(s)

Zakri Bahnam, Saari Jussi, Sermyagina Ekaterina, Vakkilainen Esa

Optimization of wind farm design taking into account uncertainty in input parameters

2013

Publication type

A4 Conference proceedings

Author(s)

Afanasyeva Svetlana, Saari Jussi, Kukkonen Saku, Partanen Jarmo, Pyrhönen Olli

Statistics and Probability

Renewable Energy, Sustainability and the Environment

Mathematical Physics

Applied Mathematics

Numerical Analysis

Modelling and Simulation

Computer Science (miscellaneous)

Computational Mathematics

Control and Optimization

Engineering (miscellaneous)

LUT School of Energy Systems

Heat Exchanger Thermal Design Guide

2010

Publication type

D5 Textbook, professional manual or guide or a dictionary

Author(s)

Saari Jussi

Optimization of the Part-Load Control Strategy for a Two-Shaft Microturbine with Intercooling, Reheat and Recuperation

2009

Publication type

A4 Conference proceedings

Author(s)

Saari Jussi, Kaikko Juha, Backman Jari, Larjola Jaakko

Fluid Flow and Transfer Processes

Computer Science

Energy (miscellaneous)

LUT School of Energy Systems

Kaksiakselisen välijäähdytyksellä, välipoltolla ja rekuperaattorilla varustetun mikrokaasuturbiinin osakuormahyötysuhteen säilyvyyden optimointi

2008

Publication type

G2 Master’s thesis, polytechnic Master’s thesis

Rakenteelliset ratkaisut infrapunaherätteiden minimoimiseksi

2004

Publication type

D4 Published development or research report or study

Author(s)

Sarkomaa Pertti, Saari Jussi, Partamies Risto, Kuisma Petri, Ojala Mikko, Pajari Risto

Teknillinen termodynamiikka

2003

Publication type

Other

Author(s)

Sarkomaa Pertti, Saari Jussi, Kaikko Juha

Renewable Energy, Sustainability and the Environment

Energy

Engineering

LUT School of Energy Systems

Jussi Saari

Biography

Research interests

Teaching experience

Researcher information

Publications and other content

Publications links