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Henrik Kofoed Nielsen

Henrik Kofoed Nielsen

Professor

Professor, PhD

Department of Engineering Sciences >

 

+47 37 23 30 30

+47 918 73 543

Office:
H4027 ( Jon Lilletuns vei 9, Grimstad )
Office hours:
0800-1600

Education & training

Cand.agro. Royal Veterinary and Agricultural University (now University of Copenhagen), 1983. Thesis title: "The use of gas scrubbers for heat extraction from straw furnaces. Commission of the European Communities report EUR 9823 EN ";

Ph.D. Agricultural Engineering, Royal Veterinary and Agricultural University (now University of Copenhagen), 1986. Thesis title: "Straw furnace for flue gas scrubber". Institute of Agricultural Engineering, Royal Veterinary and Agricultural University, Report number 57. ISSN: 0106-8237;

Employment

  • Research assistant, Institute of Agricultural Engineering, Royal Veterinary and Agricultural University, Copenhagen, 1981-1983;
  • Development engineer, Faust A/S, Vesterfjordvej 2, Mou, DK-9280 Storvorde. (Faust is a manufacturer of furnaces for straw and wood chips), 1984;
  • Ph.D. student, Royal Veterinary and Agricultural University. Copenhagen 1984-1986;
  • Advisor, (machinery) Danish association of horticultural producers, Odense, 1986-1992
  • Associate Professor, Faculty of engineering and science, University of Agder, Grimstad, 1992-2013
  • Professor, Faculty of engineering and science, University of Agder, Grimstad, 2013-

Offices

  • Management committee Cost action: Network for forest by – products charcoal, resin, tar, Potash - EU-PoTaRCh
  • Council member: Norwegian Climate Foundation:  Norsk klimastiftelse - Norges grønne tankesmie
  • Head PhD Programme Committee Engineering, University of Agder

Courses 

  • 2016: Klimagassutslipp av byggematerialer, del 1 & 2, arr. Sintef Byggforsk,
  • 2012: BREEAM, LCC, EPD, FDV OG MILJØKOORDINATOR, arr. NAL.
  • 2009: Bygningsfysikk i praksis, arr. NAL.
  • 2007: Universitetspedagogikk, arr. Universitetet i Agder

PhD-projects previous and presently under supervision: 

Main supervisor: 

  • Biomass composition and syngas quality in a CHP approach. Successfully defended 24 June 2016
  • Design of biochar for selected smelting plant applications. Successfully defended 29 August 2019
  • Production and Application of Sustainable Metallurgical Biochar Pellets. Successfully defended 7 September 2020.
  • CLT and indoor environment: monitoring, analysis, and optimization of indoor air quality in Solid Timber environments.
  • A BIM and IoT integration in support of decision making for optimizing building performance and energy management.
  • Towards Highly Efficient Techniques for lndoor Air Pollutants Degradation.
  • Wood Surfaces and Their Influence on Indoor Air Quality and Health in Care Centres
  • Waste heat recovery on ships

Co-supervisor:

  • Process modelling for hydrothermal liquefaction of biomass
  • Synthetic Esters in Hydraulic Valves. Successfully defended 3 June 2020
  • Deep neural networks for energy efficiency in high tech warehouses
  • Development of Hybrid Energy Storage System with two different types of Batteries
  • Simulation and parameter optimization of fluidized-bed and biomass gasification (University of South-Eastern Norway). Successfully defended 27 April 2021.
  • Waste as feed to a biomass gasification reactor (University of South-Eastern Norway)

Short video on my research

Courses and teaching

BYG229 Applied Building Physics

ENE239 Bioenergy

ENE606 Biomass and bioenergy

Food Security and Sustainable Agriculture at 

ASEAN Master in Sustainability Management

 

Academic interests

Teaching:

  • Applied building physics
  • Heating systems and combustion
  • Bioenergy

R&D:

  • Building physics
  • Biomass and bioenergy
  • Energy crops
  • Combustion and gasification
  • Biooil and biochar
  • Thermoelectric generators

Projects

Knowledge for improving indoor air quality and health (K-HEALTHinAIR)  Parter, Horizon Europe 2022-2026

Optimized Production Process and Biocarbon Product for use as Silicon reduction material (OptBioCar) Partner, The Research Council of Norway 2021-2023

Selected publications

1.   Riva, Lorenzo; Surup, Gerrit Ralf; Buø, Therese Videm; Nielsen, Henrik Kofoed (2019). A study of densified biochar as carbon source in the silicon and ferrosilicon production. Energy. ISSN: 0360-5442. 181s 985 - 996. doi:10.1016/j.energy.2019.06.013.

 2.     Surup Gerrit, Vehus Tore, Eidem Per-Anders, Trubetskaya Anna, Nielsen Henrik Kofoed: Characterization of renewable reductants and charcoal-based pellets for the use in ferroalloy industries, Energy 167 (2019) 337-345 http://dx.doi.org/https://doi.org/10.1016/j.energy.2018.10.193

3.      Surup Gerrit Ralf, Nielsen Henrik Kofoed, Heidelmann Markus, Trubetskaya Anna, Characterization and reactivity of charcoal from high temperature pyrolysis (800–1600 °C) (2019). Fuel 235: 1544 - 1554 doi: https://doi.org/10.1016/j.fuel.2018.08.092

4.      Bandara, Janitha; Nielsen, Henrik Kofoed; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten. Analysis and Effect of Simulation parameters of CPFD Simulation in Fluidized Beds (2018). Proceedings of The 59th Conference on Simulation and Modelling (SIMS 59) - Linköping Electronic Conference Proceedings (153): 334-341 http://dx.doi.org/10.3384/ecp18153334

5.      Wang Liang, Skjevrak Geir, Skreiberg Øyvind, Wu Hongwei, Nielsen Henrik Kofoed, Hustad Johan Einar, Investigation on Ash Slagging Characteristics during Combustion of Biomass Pellets and Effect of Additives (2018). Energy & Fuels 21: 4442-4452. ISSN 0887-0624. http://dx.doi.org/10.1021/acs.energyfuels.7b03173

6.      Liu Na, Nielsen Henrik Kofoed, Jørgensen Uffe, Lærke Poul Erik, Sampling procedure in a willow plantation for chemical elements important for biomass combustion quality (2015). Fuel. ISSN 0016-2361. 142 pp 283 - 288 http://dx.doi.org/10.1016/j.fuel.2014.11.020

7.      Nielsen Henrik Kofoed, Lærke Poul Erik, Liu Na, Jørgensen Uffe, Sampling procedure in a willow plantation for estimation of moisture content (2015). Biomass and Bioenergy. ISSN 0961-9534. 78 pp 62 - 70 http://dx.doi.org/10.1016/j.biombioe.2015.03.028

8.      Sarker Shiplu, Nielsen Henrik Kofoed, Preliminary fixed-bed downdraft gasification of birch woodchips (2015). International Journal of Environmental Science and Technology. ISSN 1735-1472. 12 (7), pp 2119 - 2126 http://dx.doi.org/10.1007/s13762-014-0618-8

9.      Sarker Shiplu, Nielsen Henrik Kofoed, Assessing the gasification potential of five woodchips species by employing a lab-scale fixed-bed downdraft reactor (2015). Energy Conversion and Management .ISSN 0196-8904. 103 pp 801 – 813 http://dx.doi.org/10.1016/j.enconman.2015.07.022

10.      Sarker Shiplu, Arauzo Jesus, Nielsen Henrik Kofoed, Semi-continuous feeding and gasification of alfalfa and wheat straw pellets in a lab-scale fluidized bed reactor (2015). Energy Conversion and Management. ISSN 0196-8904. 99 pp 50 - 61 http://dx.doi.org/10.1016/j.enconman.2015.04.015

11.  Sarker Shiplu, Bimbela Fernando, Sanchez Jose Luis, Nielsen Henrik Kofoed, Characterization and pilot scale fluidized bed gasification of herbaceous biomass: A case study on alfalfa pellets (2015). Energy Conversion and Management. ISSN 0196-8904. 91 pp 451 - 458 http://dx.doi.org/10.1016/j.enconman.2014.12.034

12.  Nielsen Henrik Kofoed Estimation of moisture content in poplar (2015). Aspects of Applied Biology. ISSN 0265-1491. 131 pp 211 – 216

13.  Nielsen Henrik Kofoed, Eco House Biestøa – indoor climate performance. I: Proceedings of the 7PHN Sustainable Cities and Buildings conference (2015). Danmarks Tekniske Universitet, DTU 2015 ISBN 978-87-7877-423-1

14.  Kristiansen Nils Randulf, Snyder G. J., Nielsen Henrik Kofoed, Rosendahl Lasse, Waste Heat Recovery from a Marine Waste Incinerator Using a Thermoelectric Generator (2012). Journal of Electronic Materials . ISSN 0361-5235. 41 (6), s 1024 - 1029 http://dx.doi.org/10.1007/s11664-012-2009-6

15. Horn Svein Jarle, Estevez Maria Magdalena, Nielsen Henrik Kofoed, Linjordet Roar, Eijsink Vincent, Biogas production and saccharification of Salix pretreated at different steam explosion conditions (2011). Bioresource Technology . ISSN 0960-8524. 102 (17), s 7932 - 7936

Scientific publications

  • Opalic, Sven Myrdahl; Palumbo, Fabrizio; Goodwin, Morten; Lei, Jiao; Nielsen, Henrik Kofoed; Kolhe, Mohan Lal (2023). COST-WINNERS: COST reduction WIth Neural NEtworks-based augmented Random Search for simultaneous thermal and electrical energy storage control. Journal of Energy Storage. ISSN: 2352-152X. 72 (B). doi:10.1016/j.est.2023.108202.
  • Hosamo, Haidar; Nielsen, Henrik Kofoed; Kraniotis, Dimitrios; Svennevig, Paul Ragnar; Svidt, Kjeld (2023). Improving building occupant comfort through a digital twin approach: A Bayesian network model and predictive maintenance method. Energy and Buildings. ISSN: 0378-7788. 288doi:10.1016/j.enbuild.2023.112992.
  • Jaiswal, Rajan; Agu, Cornelius Emeka; Nielsen, Henrik Kofoed; Eikeland, Marianne Sørflaten; Moldestad, Britt Margrethe Emilie; Thapa, Rajan Kumar (2023). Investigation of Bubble Properties in a Bubbling Fluidized-Bed Gasification Reactor Using a Computational Particle Fluid Dynamic Model. Industrial & Engineering Chemistry Research. ISSN: 0888-5885. 62 (21). s 8500 - 8514. doi:10.1021/acs.iecr.3c00626.
  • Hosamo, Haidar; Svennevig, Paul Ragnar; Svidt, Kjeld; Han, Daguang; Nielsen, Henrik Kofoed (2022). A Digital Twin predictive maintenance framework of air handling units based on automatic fault detection and diagnostics. Energy and Buildings. ISSN: 0378-7788. 261doi:10.1016/j.enbuild.2022.111988.
  • Hosamo, Haidar; Imran, Aksa; Cardenas, Juan Diego; Svennevig, Paul Ragnar; svidt, kjeld; Nielsen, Henrik Kofoed (2022). A Review of the Digital Twin Technology in the AEC-FM Industry. Advances in Civil Engineering. ISSN: 1687-8086. 2022doi:10.1155/2022/2185170.
  • Hosamo, Haidar; Nielsen, Henrik Kofoed; Alnmr, Ammar; Svennevig, Paul Ragnar; Svidt, Kjeld (2022). A review of the Digital Twin technology for fault detection in buildings. Frontiers in Built Environment. ISSN: 2297-3362. 8doi:10.3389/fbuil.2022.1013196.
  • Opalic, Sven Myrdahl; Goodwin, Morten; Lei, Jiao; Nielsen, Henrik Kofoed; Kolhe, Mohan Lal (2022). Augmented Random Search with Artificial Neural Networks for energy cost optimization with battery control. Journal of Cleaner Production. ISSN: 0959-6526. 380 (2). doi:10.1016/j.jclepro.2022.134676.
  • Nielsen, Henrik Kofoed; Vehus, Tore; Rudra, Souman; Kristiansen, Nils Randulf (2022). Chapter 9 - Biomass production, storage, and pretreatment for the production of solid biofuels. Biofuels and Biorefining Volume 1: Current Technologies for Biomass Conversion. ISBN: 9780128241165. Elsevier. s 339 - 380.
  • Hosamo, Haidar; Nielsen, Henrik Kofoed; Kraniotis, Dimitrios; Svennevig, Paul Ragnar; Svidt, Kjeld (2022). Digital Twin framework for automated fault source detection and prediction for comfort performance evaluation of existing non-residential Norwegian buildings. Energy and Buildings. ISSN: 0378-7788. 281doi:10.1016/j.enbuild.2022.112732.
  • Hosamo, Haidar; Hosamo, Mohsen; Nielsen, Henrik Kofoed; Svennevig, Paul Ragnar; svidt, kjeld (2022). Digital Twin of HVAC system (HVACDT) for multiobjective optimization of energy consumption and thermal comfort based on BIM framework with ANN-MOGA. Advances in Building Energy Research. ISSN: 1751-2549. doi:10.1080/17512549.2022.2136240.
  • Jaiswal, Rajan; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten; Nielsen, Henrik Kofoed; Thapa, Rajan Kumar (2022). Image Processing and Measurement of the Bubble Properties in a Bubbling Fluidized Bed Reactor. Energies. ISSN: 1996-1073. 15 (21). doi:10.3390/en15217828.
  • Hosamo, Haidar; Tingstveit, Merethe Solvang; Nielsen, Henrik Kofoed; Svennevig, Paul Ragnar; svidt, kjeld (2022). Multiobjective optimization of building energy consumption and thermal comfort based on integrated BIM framework with machine learning-NSGA II. Energy and Buildings. ISSN: 0378-7788. 277doi:10.1016/j.enbuild.2022.112479.
  • Bandara, Janitha; Jaiswal, Rajan; Nielsen, Henrik K.; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (2021). Air gasification of wood chips, wood pellets and grass pellets in a bubbling fluidized bed reactor. Energy. ISSN: 0360-5442. 233doi:10.1016/j.energy.2021.121149.
  • Riva, Lorenzo; Wang, Liang; Ravenni, Giulia; Bartocci, Pietro; Videm Buø, Therese; Skreiberg, Øyvind; Fantozzi, Francesco; Nielsen, Henrik Kofoed (2021). Considerations on factors affecting biocarbon densification behavior based on a multiparameter model. Energy. ISSN: 0360-5442. 221doi:10.1016/j.energy.2021.119893.
  • Gul, Eid; Riva, Lorenzo; Nielsen, Henrik Kofoed; Yang, Haiping; Zhou, Hewen; Yang, Qing; Skreiberg, Øyvind; Wang, Liang; Barbanera, Marco; Zampilli, Mauro; Bartocci, Pietro; Fantozzi, Francesco (2021). Substitution of coke with pelletized biocarbon in the European and Chinese steel industries: An LCA analysis. Applied Energy. ISSN: 0306-2619. 304s 1 - 12. doi:10.1016/j.apenergy.2021.117644.
  • Opalic, Sven Myrdahl; Goodwin, Morten; Lei, Jiao; Nielsen, Henrik Kofoed; Kolhe, Mohan Lal (2020). A Deep Reinforcement Learning scheme for Battery Energy Management. 2020 5th International Conference on Smart and Sustainable Technologies (SpliTech). ISBN: 978-953290105-4. IEEE Press. 9243797. s 1 - 6.
  • Opalic, Sven Myrdahl; Goodwin, Morten; Lei, Jiao; Nielsen, Henrik Kofoed; Pardiñas, Ángel Á.; Hafner, Armin; Kolhe, Mohan Lal (2020). ANN modelling of CO2 refrigerant cooling system COP in a smart warehouse. Journal of Cleaner Production. ISSN: 0959-6526. 260s 1 - 10. doi:10.1016/j.jclepro.2020.120887.
  • Surup, Gerrit Ralf; Nielsen, Henrik Kofoed; Großarth, Marius; Deike, Rüdiger; Van den Bulcke, Jan; Kibleur, Pierre; Müller, Michael; Ziegner, Mirko; Yazhenskikh, Elena; Beloshapkin, Sergey; Leahy, James J.; Trubetskaya, Anna (2019). Effect of operating conditions and feedstock composition on the properties of manganese oxide or quartz charcoal pellets for the use in ferroalloy industries. Energy. ISSN: 0360-5442. 193s 1 - 13. doi:10.1016/j.energy.2019.116736.
  • Wang, Liang; Riva, Lorenzo; Skreiberg, Øyvind; Khalil, Roger Antoine; Bartocci, Pietro; Yang, Qing; Yang, Haiping; Wang, Xuebin; Chen, Dengyu; Rudolfsson, Magnus; Nielsen, Henrik Kofoed (2020). Effect of torrefaction on properties of pellets produced from woody biomass. Energy & Fuels. ISSN: 0887-0624. 34 (12). s 15343 - 15354. doi:10.1021/acs.energyfuels.0c02671.
  • Bartocci, Pietro; Yang, Haiping; Gul, Eid; Riva, Lorenzo; Skreiberg, Øyvind; Barbanera, Marco; Nielsen, Henrik Kofoed; Wang, Liang; Fantozzi, Francesco; Yang, Qing; Sorbini, Giulio (2020). How to Produce Green Coke?. Proceedings of Applied Energy Symposium: MIT A+B, United States, 2020. ISBN: 978-91-985634-7-4. Energy Proceedings. paper.
  • Tingstveit, Merethe Solvang; Nielsen, Henrik Kofoed; Risholt, Birgit Dagrun (2020). Hygrothermal conditions in Cross Laminated Timber (CLT) dwellings. E3S Web of Conferences. ISSN: 2267-1242. 172doi:10.1051/e3sconf/202017210009.
  • Bandara, Janitha; Jayarathna, Chameera; Thapa, Rajan Kumar; Nielsen, Henrik Kofoed; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (2020). Loop seals in circulating fluidized beds – Review and parametric studies using CPFD simulation. Chemical Engineering Science (CES). ISSN: 0009-2509. 227doi:10.1016/j.ces.2020.115917.
  • Riva, Lorenzo; Cardarelli, Alessandro; Andersen, Geir Johan; Buø, Therese Videm; Barbanera, Marco; Bartocci, Pietro; Fantozzi, Francesco; Nielsen, Henrik Kofoed (2020). On the self-heating behavior of upgraded biochar pellets blended with pyrolysis oil: Effects of process parameters. Fuel. ISSN: 0016-2361. 278doi:10.1016/j.fuel.2020.118395.
  • Riva, Lorenzo; Surup, Gerrit Ralf; Buø, Therese Videm; Nielsen, Henrik Kofoed (2019). A study of densified biochar as carbon source in the silicon and ferrosilicon production. Energy. ISSN: 0360-5442. 181s 985 - 996. doi:10.1016/j.energy.2019.06.013.
  • Riva, Lorenzo; Nielsen, Henrik Kofoed; Skreiberg, Øyvind; Wang, Liang; Bartocci, Pietro; Barbanera, Marco; Bidini, Gianni; Fantozzi, Francesco (2019). Analysis of optimal temperature, pressure and binder quantity for the production of biocarbon pellet to be used as a substitute for coke. Applied Energy. ISSN: 0306-2619. 256s 1 - 16. doi:10.1016/j.apenergy.2019.113933.
  • Surup, Gerrit Ralf; Nielsen, Henrik Kofoed; Heidelmann, Markus; Trubetskaya, Anna (2018). Characterization and reactivity of charcoal from high temperature pyrolysis (800–1600 °C). Fuel. ISSN: 0016-2361. 235s 1544 - 1554. doi:10.1016/j.fuel.2018.08.092.
  • Surup, Gerrit Ralf; Vehus, Tore; Eidem, Per Anders; Trubetskaya, Anna; Nielsen, Henrik Kofoed (2019). Characterization of renewable reductants and charcoal-based pellets for the use in ferroalloy industries. Energy. ISSN: 0360-5442. 167s 337 - 345. doi:10.1016/j.energy.2018.10.193.
  • Bandara, Janitha; Thapa, Rajan Kumar; Nielsen, Henrik Kofoed; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (2019). Circulating fluidized bed reactors – part 01: analyzing the effect of particle modelling parameters in computational particle fluid dynamic (CPFD) simulation with experimental validation. Particulate Science and Technology. ISSN: 0272-6351. doi:10.1080/02726351.2019.1697773.
  • Riva, Lorenzo; Nielsen, Henrik Kofoed; Buø, Therese Videm; Zhuo, Hewen; Yang, Qing; Yang, Haiping; Skreiberg, Øyvind; Wang, Liang; Bartocci, Pietro; Barbanera, Marco; Fantozzi, Francesco (2019). LCA Analysis of Biocarbon Pellet Production to Substitute Coke. DEStech Transactions on Environment, Energy and Earth Sciences. ISSN: 2475-8833. doi:10.12783/dteees/iceee2019/31754.
  • Opalic, Sven Myrdahl; Goodwin, Morten; Lei, Jiao; Nielsen, Henrik Kofoed; Kolhe, Mohan Lal (2019). Modelling of Compressors in an Industrial CO 2-Based Operational Cooling System Using ANN for Energy Management Purposes. Engineering Applications of Neural Networks. EANN 2019.. ISBN: 978-3-030-20256-9. Springer. chapter.
  • Wang, Liang; Skjevrak, Geir; Skreiberg, Øyvind; Wu, Hongwei; Nielsen, Henrik Kofoed; Hustad, Johan Einar (2017). Investigation on Ash Slagging Characteristics during Combustion of Biomass Pellets and Effect of Additives. Energy & Fuels. ISSN: 0887-0624. 32 (4). s 4442 - 4452. doi:10.1021/acs.energyfuels.7b03173.
  • Sarker, Shiplu; Nielsen, Henrik Kofoed (2015). Assessing the gasification potential of five woodchips species by employing a lab-scale fixed-bed downdraft reactor. Energy Conversion and Management. ISSN: 0196-8904. 103s 801 - 813. doi:10.1016/j.enconman.2015.07.022.
  • Sarker, Shiplu; Bimbela, Fernando; Sanchez, Jose Luis; Nielsen, Henrik Kofoed (2014). Characterization and pilot scale fluidized bed gasification of herbaceous biomass: A case study on alfalfa pellets. Energy Conversion and Management. ISSN: 0196-8904. 91s 451 - 458. doi:10.1016/j.enconman.2014.12.034.
  • Nielsen, Henrik Kofoed (2015). Eco House Biestøa – indoor climate performance. Proceedings of the 7PHN Sustainable Cities and Buildings conference held in Copenhagen 20-21 August 2015. ISBN: 978-87-7877-423-1. Danmarks Tekniske Universitet, DTU. 031.
  • Nielsen, Henrik Kofoed (2015). Estimation of moisture content in poplar. Aspects of Applied Biology. ISSN: 0265-1491. 131s 211 - 216.
  • Sarker, Shiplu; Nielsen, Henrik Kofoed (2014). Preliminary fixed-bed downdraft gasification of birch woodchips. International Journal of Environmental Science and Technology. ISSN: 1735-1472. 12 (7). s 2119 - 2126. doi:10.1007/s13762-014-0618-8.
  • Liu, Na; Nielsen, Henrik Kofoed; Jørgensen, Uffe; Lærke, Poul Erik (2015). Sampling procedure in a willow plantation for chemical elements important for biomass combustion quality. Fuel. ISSN: 0016-2361. 142s 283 - 288. doi:10.1016/j.fuel.2014.11.020.
  • Nielsen, Henrik Kofoed; Lærke, Poul Erik; Liu, Na; Jørgensen, Uffe (2015). Sampling procedure in a willow plantation for estimation of moisture content. Biomass & Bioenergy. ISSN: 0961-9534. 78s 62 - 70. doi:10.1016/j.biombioe.2015.03.028.
  • Sarker, Shiplu; Arauzo, Jesus; Nielsen, Henrik Kofoed (2015). Semi-continuous feeding and gasification of alfalfa and wheat straw pellets in a lab-scale fluidized bed reactor. Energy Conversion and Management. ISSN: 0196-8904. 99s 50 - 61. doi:10.1016/j.enconman.2015.04.015.
  • Yordanov, Georgi Hristov; Midtgård, Ole-Morten; Sætre, Tor Oskar; Nielsen, Henrik Kofoed; Norum, Lars Einar (2013). Overirradiance (Cloud Enhancement) Events at High Latitudes. IEEE Journal of Photovoltaics. ISSN: 2156-3381. 3 (1). s 271 - 277. doi:10.1109/JPHOTOV.2012.2213581.
  • Yordanov, Georgi Hristov; Midtgård, Ole-Morten; Sætre, Tor Oskar; Nielsen, Henrik Kofoed; Norum, Lars Einar (2012). Over-Irradiance (Cloud Enhancement) Events at High Latitudes. 27th European Photovoltaic Solar Energy Conference (EU PVSEC), Frankfurt, Germany, September, 2012. ISBN: 3-936338-28-0. WIP - Renewable Energies. Academic Article. s 3709 - 3713.
  • Yordanov, Georgi Hristov; Midtgård, Ole-Morten; Sætre, Tor Oskar; Nielsen, Henrik Kofoed; Norum, Lars (2012). Overirradiance (Cloud Enhancement) Events at High Latitudes. 38th IEEE Photovoltaic Specialists Conference (PVSC), 2012, proceedings. ISBN: 978-1-4673-0064-3. IEEE conference proceedings. Volume 2.
  • Kristiansen, Nils Randulf; Snyder, G. J.; Nielsen, Henrik Kofoed; Rosendahl, Lasse (2012). Waste Heat Recovery from a Marine Waste Incinerator Using a Thermoelectric Generator. Journal of Electronic Materials. ISSN: 0361-5235. 41 (6). s 1024 - 1029. doi:10.1007/s11664-012-2009-6.
  • Horn, Svein Jarle; Estevez, Maria Magdalena; Nielsen, Henrik Kofoed; Linjordet, Roar; Eijsink, Vincent (2011). Biogas production and saccharification of Salix pretreated at different steam explosion conditions. Bioresource Technology. ISSN: 0960-8524. 102 (17). s 7932 - 7936. doi:10.1016/j.biortech.2011.06.042.
  • Kristiansen, Nils R.; Nielsen, Henrik Kofoed (2010). Potential for Usage of Thermoelectric Generators on Ships. Journal of Electronic Materials. ISSN: 0361-5235. 39 (9). s 1746 - 1749. doi:10.1007/s11664-010-1189-1.
  • Våge, Magne; Nielsen, Henrik Kofoed; Michalsen, Bengt G. (2010). Rom- og tappevannsoppvarming for lavenergiboliger og passivhus, evaluering av løsninger. 3rd Nordic Passive House Conference 2010 ? Towards 2020 Sustainable Cities and Buildings. ISBN: 9788773079973. Aalborg university press. faglig_bok_forlag. s 13.
  • Nielsen, Henrik Kofoed (2008). Sorrel and reed canary grass in southern Norway. Biomass and energy crops III. Association of applied biologists. faglig_bok_institusjon. s 75 - 79.
  • Nielsen, Henrik Kofoed (2007). Bioenergiundervisning - praktiske øvelser. Lek og læring - artikler skrevet av deltakere på kurs i universitetspedagogikk. Universitet i Agder. faglig_bok_institusjon. s 119 - 127.
  • Nielsen, Henrik Kofoed; Ahlhaus, Matthias; Kunze, Martin (2005). Energiafgrøder - erfaringer fra energiparken i Grimstad Energy crops - experiences from National Centre for Renewable Energy in Grimstad, Norway. Bionergy 2005 - presentations. The Norwegian Bioenergy Association. faglig_bok_forlag. s 1.
  • Ahlhaus, Matthias; Nielsen, Henrik Kofoed (2005). Heating with Different Biofuels in Small Domestic Boilers and Possibilities of Combined Heat and Power Production. International symposium: research - education - technology. ISBN: 8388579169. Faculty of mechanical engineering, Gdansk university of technology. faglig_bok_forlag. s 25 - 30.
  • Nielsen, Henrik Kofoed (2004). Produktionsapparatet. Planteskolebogen - Fysiologi, formering og dyrkning. Biofolia. s 179 - 198.
  • Ahlhaus, Matthias; Nielsen, Henrik Kofoed (2005). Kombinierte Wärme- und Stromerzeugung mit Scheitholz und Pellets in einer häuslichen Kleinanlage. ISBN: 3980995313. Fachhochschule Stralsund, Fachbereich Elektrotechnik und Informatik. s 5.
  • Nielsen, Henrik Kofoed (2002). Vandingssystemer til containerpladser. ISBN: 8276345514. Cappelen Damm Høyskoleforlaget. s 127.
  • Nielsen, Henrik Kofoed (2024). Tre og inneklima: FoU på Universitetet i Agder.
  • Nielsen, Henrik Kofoed (2024). K-Health in Air and VOC.
  • Nielsen, Henrik Kofoed (2024). VOC prosjektet til UiA.
  • Nielsen, Henrik Kofoed (2024). Bioenergi: Hvad skal vi bruge biomassen til?.
  • Nielsen, Henrik Kofoed (2024). Biomass production, storage, and pretreatment for the production of solid biofuels.
  • Nielsen, Henrik Kofoed (2024). Bioeconomy.
  • Nielsen, Henrik Kofoed (2024). The many faces of Bioenergy and Bioeconomy.
  • Nielsen, Henrik Kofoed (2024). Indeklima og sundhed: K-Health in Air og målinger på Fagskolen i Agder.
  • Nielsen, Henrik Kofoed (2024). Bioenergi og bioøkonomi.
  • Chandra Pratama Putra, Jouvan; Vehus, Tore; Nielsen, Henrik Kofoed (2023). A Review on Electron-Hole Pairs Mechanism in Dark Photocatalysis.

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