Pekka Ahtila: search on Z-Library

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1

Can bacterial biofiltration be replaced by autotrophic organisms in recirculating fresh water aquaculture?

Ojanen, Suvi, Tyystjärvi, Esa, Holmberg, Henrik, Kouhia, Mikko, Ahtila, Pekka

Journal:

Aquaculture International

Year:

2017

Language:

english

File:

PDF, 595 KB

english, 2017

2

Improving the power-to-heat ratio in CHP plants by means of a biofuel multistage drying system

Jukka-Pekka Spets, Pekka Ahtila

Journal:

Applied Thermal Engineering

Year:

2002

Language:

english

File:

PDF, 367 KB

english, 2002

3

Success factors of energy management in energy-intensive industries: Development priority of energy performance measurement

Leena Sivill, Jussi Manninen, Ilkka Hippinen, Pekka Ahtila

Journal:

International Journal of Energy Research

Year:

2012

Language:

english

File:

PDF, 435 KB

english, 2012

4

Microalgae-utilizing biorefinery concept for pulp and paper industry: Converting secondary streams into value-added products

Kouhia, Mikko, Holmberg, Henrik, Ahtila, Pekka

Journal:

Year:

2015

Language:

english

File:

PDF, 1.15 MB

english, 2015

5

Determination of the Real Loss of Power for a Condensing and a Backpressure Turbine by Means of Second Law Analysis

Holmberg, Henrik, Ruohonen, Pekka, Ahtila, Pekka

Journal:

Year:

2009

Language:

english

File:

PDF, 193 KB

english, 2009

6

Methods on Evaluating Process Intengration Efficiency

Mari Tuomaala, Markku Hurme, Ilkka Hippinen, Pekka Ahtila, Ilkka Turunen

Journal:

Chemie Ingenieur Technik

Year:

2001

Language:

english

File:

PDF, 61 KB

english, 2001

7

Optimisation model for integration of cooling and heating systems in large industrial plants

Jarmo Söderman, Pekka Ahtila

Journal:

Applied Thermal Engineering

Year:

2010

Language:

english

File:

PDF, 421 KB

english, 2010

8

Evaluation of energy efficiency in biofuel drying by means of energy and exergy analyses

Henrik Holmberg, Pekka Ahtila

Journal:

Applied Thermal Engineering

Year:

2005

Language:

english

File:

PDF, 348 KB

english, 2005

9

Analysis of a mechanical pulp and paper mill using advanced composite curves

Pekka Ruohonen, Pekka Ahtila

Journal:

Applied Thermal Engineering

Year:

2010

Language:

english

File:

PDF, 577 KB

english, 2010

10

Comparison of drying costs in biofuel drying between multi- stage and single-stage drying

Henrik Holmberg, Pekka Ahtila

Journal:

Biomass and Bioenergy

Year:

2004

Language:

english

File:

PDF, 336 KB

english, 2004

11

Qualitative analysis of a thermo mechanical pulp and paper mill using advanced composite curves

Pekka Ruohonen, Pekka Ahtila

Journal:

Year:

2011

Language:

english

File:

PDF, 890 KB

english, 2011

12

Variables affecting energy efficiency and CO2 emissions in the steel industry

Sari Siitonen, Mari Tuomaala, Pekka Ahtila

Journal:

Year:

2010

Language:

english

File:

PDF, 372 KB

english, 2010

13

The influence of operational flexibility on the exploitation of CO2 reduction potential in industrial energy production

Sari Siitonen, Pekka Ahtila

Journal:

Journal of Cleaner Production

Year:

2010

Language:

english

File:

PDF, 524 KB

english, 2010

14

Analysis of alternative secondary heat uses to improve energy efficiency—case: A Finnish mechanical pulp and paper mill

Pekka Ruohonen, Ilkka Hippinen, Mari Tuomaala, Pekka Ahtila

Journal:

Resources, Conservation and Recycling

Year:

2010

Language:

english

File:

PDF, 1.75 MB

english, 2010

15

Implications of process energy efficiency improvements for primary energy consumption and CO2 emissions at the national level

Sari Siitonen, Mari Tuomaala, Markku Suominen, Pekka Ahtila

Journal:

Year:

2010

Language:

english

File:

PDF, 347 KB

english, 2010

16

Energy efficiency improvement of dryer section heat recovery systems in paper machines – A case study

Leena Sivill, Pekka Ahtila

Journal:

Applied Thermal Engineering

Year:

2009

Language:

english

File:

PDF, 373 KB

english, 2009

17

Allocation of fuel costs and CO2-emissions to heat and power in an industrial CHP plant: Case integrated pulp and paper mill

Henrik Holmberg, Mari Tuomaala, Turo Haikonen, Pekka Ahtila

Journal:

Year:

2012

Language:

english

File:

PDF, 437 KB

english, 2012

18

Evaluating municipal energy efficiency in biorefinery integration

Haikonen, Turo, Tuomaala, Mari, Holmberg, Henrik, Ahtila, Pekka

Journal:

Year:

2013

Language:

english

File:

PDF, 525 KB

english, 2013

19

Simulation Model for the Model-Based Control of a Biofuel Dryer at an Industrial Combined Heat and Power Plant

Holmberg, Henrik, Ahtila, Pekka

Journal:

Drying Technology

Year:

2006

Language:

english

File:

PDF, 1.73 MB

english, 2006

20

Porous membrane as a means of gas and nutrient exchange in a tubular photobioreactor

Ojanen, Suvi, Tyystjärvi, Esa, Holmberg, Henrik, Ahtila, Pekka

Journal:

Journal of Applied Phycology

Year:

2015

Language:

english

File:

PDF, 364 KB

english, 2015

21

The thermal analysis of a combined heat and power plant undergoing Clausius–Rankine cycle based on the theory of effective heat-absorbing and heat-emitting temperatures

Holmberg, Henrik, Ahtila, Pekka

Journal:

Applied Thermal Engineering

Year:

2014

Language:

english

File:

PDF, 1.69 MB

english, 2014

22

Wood Chip Drying in Fixed Beds: Drying Kinetics and Economics of Drying at a Municipal Combined Heat and Power Plant Site

Myllymaa, Tiina, Holmberg, Henrik, Hillamo, Harri, Laajalehto, Tatu, Ahtila, Pekka

Journal:

Drying Technology

Year:

2015

Language:

english

File:

PDF, 989 KB

english, 2015

23

Investment Evaluation of an Integrated Steel Mill using Multiple Criteria

Kekkonen, Marko, Tuomaala, Mari, Holappa, Lauri, Hurme, Markku, Ahtila, Pekka

Journal:

International Journal of Green Energy

Year:

2006

Language:

english

File:

PDF, 129 KB

english, 2006

24

Experimental Study on Drying of Bark in Fixed Beds

Holmberg, Henrik, Ahtila, Pekka, Ahtila, Olli

Journal:

Drying Technology

Year:

2011

Language:

english

File:

PDF, 1.09 MB

english, 2011

25

Reduction of Organic Emissions by Using a Multistage Drying System for Wood-Based Biomasses

Spets, Jukka-Pekka, Ahtila, Pekka

Journal:

Drying Technology

Year:

2004

Language:

english

File:

PDF, 207 KB

english, 2004

26

Drying of Activated Sludge Under Partial Vacuum Conditions—An Experimental Study

Hippinen, Ilkka, Ahtila, Pekka

Journal:

Drying Technology

Year:

2004

Language:

english

File:

PDF, 168 KB

english, 2004

27

Primary Exergy Efficiency- Effect of System Efficiency Environment to Benefits of Exergy Savings

Laukkanen, Timo P., Kohl, Thomas, Järvinen, Mika P., Ahtila, Pekka

Journal:

Energy and Buildings

Year:

2015

Language:

english

File:

PDF, 636 KB

english, 2015

28

Upgrading of soot sludge from waste to fuel by means of low temperature drying in fixed beds

Myllymaa, Tiina, Holmberg, Henrik, Arhippainen, Pentti, Ahtila, Pekka

Journal:

Fuel Processing Technology

Year:

2015

Language:

english

File:

PDF, 3.04 MB

english, 2015

29

Dynamic process simulation promotes energy efficient ship design

Lepistö, Vesa, Lappalainen, Jari, Sillanpää, Kari, Ahtila, Pekka

Journal:

Ocean Engineering

Year:

2016

Language:

english

File:

PDF, 2.12 MB

english, 2016

30

Techno-economic evaluation of biomass drying in moving beds: The effect of drying kinetics on drying costs

Myllymaa, Tiina, Holmberg, Henrik, Ahtila, Pekka

Journal:

Drying Technology

Year:

2018

Language:

english

File:

PDF, 1.92 MB

english, 2018

31

Energy analysis of algae-to-biofuel production chains integrated with a combined heat and power plant

Kouhia, Mikko, Holmberg, Henrik, Sonck, Matti, Ahtila, Pekka

Journal:

International Journal of Sustainable Engineering

Year:

2018

Language:

english

File:

PDF, 1.90 MB

english, 2018

32

Evaluation of design objectives in district heating system design

Kouhia, Mikko, Laukkanen, Timo, Holmberg, Henrik, Ahtila, Pekka

Journal:

Year:

2019

Language:

english

File:

PDF, 1.41 MB

english, 2019

33

District heat network as a short-term energy storage

Kouhia, Mikko, Laukkanen, Timo, Holmberg, Henrik, Ahtila, Pekka

Journal:

Year:

2019

Language:

english

File:

PDF, 1008 KB

english, 2019

34

Economic Evaluation of Drying of Soot Sludge and Sawdust Mixture at Low Temperatures Using the Characteristic Drying Curve Method

Myllymaa, Tiina, Holmberg, Henrik, Ahtila, Pekka

Journal:

ChemEngineering

Year:

2020

Language:

english

File:

PDF, 2.78 MB

english, 2020