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Rúnar Unnþórsson - Professor

Rúnar Unnþórsson

–

School of Engineering and Natural Sciences

Rúnar Unnþórsson

Professor

Head of faculty

Phone
525 - 4954 897-6969
Email
runson [at] hi.is

Unit
Faculty of Industrial Engineering, Mechanical Engineering and Computer Science
Website
https://vhi.hi.is/is/starfsmenn/akademiskir/runar-unnthorsson

Consultation hours
By appointment - please send me an email.
ORCID site
https://orcid.org/0000-0002-1960-0263
Research portal – Rúnar Unnþórsson

Published works

2024

The Haptic Intensity Order Illusion Is Caused by Amplitude ChangesACM Transactions on Applied Perception
Cross-modal cues improve the detection of synchronized targets during human foraging.

2023

Revisiting the reaction scheme of slow pyrolysis of woody biomassEnergy
Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the ForearmApplied Sciences
Prediction of Head Related Transfer Functions Using Machine Learning ApproachesAcoustics
Seaweed Pellets as a Renewable Fuel FeedstockBiomass
Effects of Stimulus Frequency and Location on Vibrotactile Discrimination Performance Using Voice Coil Actuators on the ForearmActuators

2022

Dioxin Formation in Biomass Gasification: A ReviewEnergies
Implicit Equation for Photovoltaic Module Temperature and Efficiency via Heat Transfer Computational ModelThermo
Mathematical Modeling and Experiments on Pyrolysis of Walnut Shells Using a Fixed-Bed ReactorChemEngineering
Performance Investigation of Biomass Gasification for Syngas and Hydrogen Production Using Aspen PlusOpen Journal of Modelling and Simulation
The Latest Advances in Wireless Communication in Aviation, Wind Turbines and BridgesInventions
Evaluating the Optimum Distance between Voice Coil Actuators Using the Relative Point Localization Method on the ForearmActuators
Vibrotactile Threshold Measurements at the Wrist Using Parallel Vibration ActuatorsACM Transactions on Applied Perception

2021

Gasification of Woody Biomasses and Forestry Residues: Simulation, Performance Analysis, and Environmental ImpactFermentation
Bioethanol Production via Herbaceous and Agricultural Biomass Gasification Integrated with Syngas FermentationFermentation
Hydrogen production via biomass gasification: simulation and performance analysis under different gasifying agentsBiofuels
Artificial Neural Network Modeling of Bioethanol Production Via Syngas FermentationBiophysical Economics and Sustainability
A Practical Approach for Estimating the Optimum Tilt Angle of a Photovoltaic Panel for a Long Period—Experimental Recorded DataSolar
Modeling of Hydrogen Production by Applying Biomass Gasification: Artificial Neural Network Modeling ApproachFermentation
Evaluating team performance in a student led multidisciplinary project course with the painter methodInternational Journal of Engineering Education
Dioxin and Furan Emissions from GasificationGasification [Working Title]

2020

Dataset of biomass characteristics and net output power from downdraft biomass gasifier integrated power production unitData in Brief
Energy Harvesting Technologies for Structural Health Monitoring of Airplane Components—A ReviewSensors
Simulation and Performance Analysis of Integrated Gasification–Syngas Fermentation Plant for Lignocellulosic Ethanol ProductionFermentation
Simulation and Performance Analysis of Integrated Gasification-Syngas Fermentation Plant for Lignocellulosic Ethanol ProductionFermentation
The equivalence of stoichiometric and non-stoichiometric methods for modeling gasification and other reaction equilibriaRenewable and Sustainable Energy Reviews
3D ear shape as an estimator of hrtf notch frequencyProceedings of the Sound and Music Computing Conferences
Techno-Economic Analysis of Power Production by Using Waste Biomass GasificationJournal of Power and Energy Engineering
Effect of coronavirus disease 2019 on co2 emission in the worldAerosol and Air Quality Research
Effect of Coronavirus Disease 2019 on CO2 Emission in the WorldAerosol and Air Quality Research
Artificial neural network integrated with thermodynamic equilibrium modeling of downdraft biomass gasification-power production plantEnergy
Performance analysis and environmental assessment of small-scale waste biomass gasification integrated CHP in IcelandEnergy
Simulation of small-scale waste biomass gasification integrated CHP: A comparative performance analysis for timber and wood wasteInternational Journal of Applied Power Engineering (IJAPE)
Techno-Economic and Environmental Assessment of Power Supply Chain by Using Waste Biomass Gasification in IcelandBiophysical Economics and Sustainability

2019

Prioritization of Bioethanol Production Systems from Agricultural and Waste Agricultural Biomass Using Multi-criteria Decision MakingBioPhysical Economics and Resource Quality
Thermoelectric Generator Using Passive CoolingAdvanced Thermoelectric Materials for Energy Harvesting Applications
A detachable thermoelectric generator as a power source for a 3G camera network using a steam pipe as a heat sourceASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Development of a New Stoichiometric Equilibrium-Based Model for Wood Chips and Mixed Paper Wastes Gasification by ASPEN PlusVolume 6: Energy
A review of biomass gasification modellingRenewable and Sustainable Energy Reviews
Open Field Heating of Green Roofs and Small Arable Land Plots Using Waste Steam and Hot Water From Geothermal, Municipal and COGEN Sources to Enhance Plant GrowthVolume 6: Energy
A Detachable Thermoelectric Generator As a Power Source for a 3G Camera Network Using a Steam Pipe As a Heat SourceVolume 6: Energy
Thermoelectric Generator-Based System for Energizing Low-Power Communication and Geolocation ElectronicsVolume 6: Energy
The intensity order illusion: temporal order of different vibrotactile intensity causes systematic localization errorsJournal of Neurophysiology
Open Field Heated Agriculture for Enhanced Crop Production Using Waste Geothermal, Municipal, and Co-Gen Hot Water and Steam Condensate
Open field heating of green roofs and small arable land plots using waste steam and hot water from geothermal, municipal and cogen sources to enhance plant growthASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Development of a new stoichiometric equilibrium-based model for wood chips and mixed paper wastes gasification by Aspen plusASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Thermoelectric generator-based system for energizing low-power communication and geolocation electronicsASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
The viking HRTF datasetProceedings of the Sound and Music Computing Conferences
Open field heated agriculture for enhanced crop production using waste geothermal steam, condensate, and hot water to produce marketable crops in IcelandTransactions - Geothermal Resources Council
Waste Biomass Gasification Simulation Using Aspen Plus: Performance Evaluation of Wood Chips, Sawdust and Mixed Paper WastesJournal of Power and Energy Engineering

2018

Direct Use of Geothermal Resources for Circular Food Production
An Assessment of the Sustainability of Lignocellulosic Bioethanol Production from Wastes in IcelandEnergies
Thermoelectric Powered Security Systems in Iceland Using a Geothermal Steam Pipe as a Heat Source
Evaluation of an Audio-haptic Sensory Substitution Device for Enhancing Spatial Awareness for the Visually ImpairedOptometry and Vision Science
Current use and future perspectives of spatial audio technologies in electronic travel aidsWireless Communications and Mobile Computing
Blind wayfinding with physically-based liquid soundsInternational Journal of Human Computer Studies
On Authority in Academia2018 28th EAEEIE Annual Conference, EAEEIE 2018
Sound of vision 3D virtual training environments-a gamification approach for visual to audio-haptic sensory substitutionRevue Roumaine des Sciences Techniques Serie Electrotechnique et Energetique
Societal and environmental impact of high energy return on investment (EROI) energy accessRenewable Energies: Business Outlook 2050
Measuring relative vibrotactile spatial acuity: effects of tactor type, anchor points and tactile anisotropyExperimental Brain Research
Introducing a new haptic illusion to increase the perceived resolution of tactile displaysCHIRA 2018 - Proceedings of the 2nd International Conference on Computer-Human Interaction Research and Applications
NordicSMC: A nordic university hub on sound and music computingProceedings of the 15th Sound and Music Computing Conference: Sonic Crossings, SMC 2018
On Improving Academic-Industry Collaboration2018 28th EAEEIE Annual Conference, EAEEIE 2018
Enhanced methane production from pig slurry with pulsed electric field pre-treatmentEnvironmental Technology (United Kingdom)
Uniaxial and lateral strain behavior of ribbed reinforcement bars inspected with digital image correlationStructural Concrete

2017

Different approaches to aiding blind persons in mobility and navigation in the "naviton" and "sound of vision" projectsMobility of Visually Impaired People: Fundamentals and ICT Assistive Technologies
Heat pumps in subarctic areas: current status and benefits of use in IcelandInternational Journal of Energy and Environmental Engineering
3G security camera network using a thermoelectric generator powered by a geothermal steam pipe in IcelandTransactions - Geothermal Resources Council
Auditory depth map representations with a sensory substitution scheme based on synthetic fluid sounds2017 IEEE 19th International Workshop on Multimedia Signal Processing, MMSP 2017
Methane yield enhancement via electroporation of organic wasteWaste Management
Relative vibrotactile spatial acuity of the torsoExperimental Brain Research
A Step towards the Hydrogen Economy—A Life Cycle Cost Analysis of A Hydrogen Refueling StationEnergies
Improving the audio game–playing performances of people with visual impairments through multimodal trainingJournal of Visual Impairment and Blindness
Usability and effectiveness of auditory sensory substitution models for the visually impaired142nd Audio Engineering Society International Convention 2017, AES 2017
Flipped classroom improves the student's exam performance in a first year engineering courseInternational Journal of Engineering Education
Calculations of environmental benefits from using geothermal energy must include the rebound effectGeothermics

2016

Taxonomy of Means and Ends in Aquaculture Production—Part 3: The Technical Solutions of Controlling N Compounds, Organic Matter, P Compounds, Metals, Temperature and Preventing DiseaseWater
A method for estimating annual energy production using Monte Carlo wind speed simulationEnergies
Sound of vision - Spatial audio output and sonification approachesLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
A thermoelectric powered quadruped robotic system for remote monitoring of geothermal open field heated gardens in IcelandTransactions - Geothermal Resources Council
Thermally enhanced open field heating agricultural system using waste geothermal hot water and low temperature steam in Iceland and waste municipal steam in New York cityTransactions - Geothermal Resources Council
Model-based obstacle sonification for the navigation of visually impaired personsDAFx 2016 - Proceedings of the 19th International Conference on Digital Audio Effects
Taxonomy of Means and Ends in Aquaculture Production—Part 1: The FunctionsWater
The Sound of Vision Project: On the Feasibility of an Audio-Haptic Representation of the Environment, for the Visually ImpairedBrain Sciences
Design of a low-power quadruped robot for remote data acquisition in a heated gardenASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Design and construction of a heated garden system utilizing steam condensate from an on site boilerASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Design of a clamp for a thermoelectric generator using bimetallic thermal propertiesASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Translational research—the need of a new bioethics approachJournal of Translational Medicine
Designing sensory-substitution devices: Principles, pitfalls and potential ¹Restorative Neurology and Neuroscience
Taxonomy of means and ends in aquaculture production-part 4: The mapping of technical solutions onto multiple treatment functionsWater (Switzerland)
Heat transfer analysis of shell-and-helical-coil heat exchangersASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Taxonomy of means and ends in aquaculture production-Part 2: The technical solutions of controlling solids, dissolved gasses and pHWater (Switzerland)

2015

Using pulsed electric field pre-treatment to improve methane productionTransport and Energy Processes 2015 - Core Programming Area at the 2015 AIChE Annual Meeting
Point of use thermoelectric powered automated irrigation system for an intesive shallow bottom heat system using waste geothermal hot water and steam condensate in IcelandTransactions - Geothermal Resources Council
Theorizing for Maintenance Management Improvements: Using Case Studies from the Icelandic Geothermal SectorEnergies
Levelized cost of energy analysis of awind power generation system at Búrfell in IcelandEnergies
Enhanced pig slurry biomethanation using pulsed electric field pre-treatmentSustainable Engineering Forum 2015 - Core Programming Area at the 2015 AIChE Annual Meeting
Accelerated plant growth results from an intensive shallow bottom heat system using waste geothermal hot water and steam condensate in IcelandTransactions - Geothermal Resources Council
Innovation and development in geothermal turbine maintenance based on Icelandic experienceGeothermics
Geothermal wellhead maintenance: A statistical model based on documented Icelandic experienceGeothermics
Energy return on investment of Austrian sugar beet: A small-scale comparison between organic and conventional productionBiomass and Bioenergy
Turbine repair at Nesjavellir geothermal power plant: An Icelandic case studyGeothermics
A longitudinal study of the relations between workload, grades and student ratings in a first year engineering courseInternational Journal of Engineering Education

2014

Enhanced agricultural production from an intensive bottom heat system using waste geothermal hot water and steam condensate in IcelandTransactions - Geothermal Resources Council
Geothermal Power Plant Maintenance: Evaluating Maintenance System Needs Using Quantitative Kano AnalysisEnergies
Necessity is the mother of invention: The dawn of domestic geothermal turbine repairs in IcelandAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Go with the flow: The evolvement of geothermal wellhead maintenance at the hellisheidi power plantAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Wellhead Scaling Problems in Geothermal Power Plants Addressed Using a Needle Valve DerivativeVolume 1: Fuels and Combustion, Material Handling, Emissions; Steam Generators; Heat Exchangers and Cooling Systems; Turbines, Generators and Auxiliaries; Plant Operations and Maintenance; Reliability, Availability and Maintainability (RAM); Plant Systems, Structures, Components and Materials Issues
Web accessible security camera system independently powered by a point of use thermoelectric generator using geothermal pipes as a heat sourceTransactions - Geothermal Resources Council
Energy return on investment of hydroelectric power generation calculated using a standardised methodologyRenewable Energy
Ideal EROI (energy return on investment) deepens the understanding of energy systemsEnergy
Wellhead scaling problems in geothermal power plants addressed using a needle valve derivativeAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Simulation based grid optimization to enhance renewable energy storage in IcelandASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
A web-accessible robotics monitoring system powered by a thermoelectric generator connected to a batteryASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Designing and installing a retrofit heated green roof using either co-gen waste hot water or municipal waste steam heat as energy sourceASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Energy return on investment of hydroelectric power generation calculated using a standardised methodologyRenewable Energy

2013

Operation and maintenance in Icelandic geothermal power plants-structure and hierarchyAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Hit Detection and Determination in AE Bursts
Waste geothermal hot water for enhanced outdoor agricultural productionAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
Specified maintenance of steam turbines in geothermal power plantsAmerican Society of Mechanical Engineers, Power Division (Publication) POWER
New design solves scaling problems on geothermal control valvesPower
Repurposing Waste Steam and Hot Water to Accelerate Plant Growth in Heated Green RoofsVolume 6B: Energy
Hot water production improves the energy return on investment of geothermal power plants
Repurposing waste steam and hot water to accelerate plant growth in heated green roofsASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Waste Geothermal Hot Water for Enhanced Outdoor Agricultural ProductionVolume 2: Reliability, Availability and Maintainability (RAM); Plant Systems, Structures, Components and Materials Issues; Simple and Combined Cycles; Advanced Energy Systems and Renewables (Wind, Solar and Geothermal); Energy Water Nexus; Thermal Hydraulics and CFD; Nuclear Plant Design, Licensing and Construction; Performance Testing and Performance Test Codes

2012

Thermoelectric-Based Power Generator for Powering Microcontroller Based Security CameraVolume 6: Energy, Parts A and B
Waste-heat for pre-heating internal combustion enginesASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Thermoelectric-based power generator for powering microcontroller based security cameraASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Identifying and Monitoring Evolving AE SourcesAcoustic Emission
Waste-Heat for Pre-Heating Internal Combustion EnginesVolume 11: Transportation Systems
Fin drive propulsionASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Fin Drive PropulsionVolume 2: Biomedical and Biotechnology

2008

Acoustic emission based fatigue failure criterion for CFRP

2005

Extracting information from conventional AE features for onset damage detection in carbon fiber compositesEssential Technologies for Successful Prognostics - Proceedings of the 59th Meeting of the Society for Machinery Failure Prevention Technology

Keywords for Specialisation:

Haptic and Tactile stimulation

Energy efficiency

Performance engineering

Acoustic engineering

3D Sounds and Acoustics

Renewable energy

Virtual Reality Acoustics

Sensory substitution

Battery Energy Storage System

Battery repurposing

Battery testing