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2017

Advanced airflow distribution methods for reducing exposure of indoor pollution

Cao, G., Nielsen, P. V., Melikov, A. & Kosonen, R., 2017, 38th AIVC Conference "Ventilating healthy low-energy buildings". AIVC, 6 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Ventilation
Pollution
Thermal comfort
Air
Viruses
2011
12 Citations (Scopus)

Displacement Ventilation in Hospital Environments

Li, Y., Nielsen, P. V. & Sandberg, M., 2011, In : ASHRAE Journal. 53, 6, p. 86-88 3 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Health care
Ventilation
Microorganisms
Aerosols
2019

Measuring the administered dose of particles on the facial mucosa of a realistic human model

Duan, M., Liu, L., Da, G., Géhin, E., Nielsen, P. V., Weinreich, U. M., Lin, B., Wang, Y., Zhang, T. & Sun, W., 14 Oct 2019, In : Indoor Air.

Research output: Contribution to journalJournal articleResearchpeer-review

Mucous Membrane
Lip
3D printers
Oropharynx
Bronchi
2010
9 Citations (Scopus)
843 Downloads (Pure)

CFD Modeling of Airflow in a Livestock Building

Rong, L., Elhadidi, B., Khalifa, H. E. & Nielsen, P. V., 2010, IAQVEC 2010 : The 7th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: August 15-18, 2010, Syracuse, New York, USA. Syracuse, New York: The 7th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, 8 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Agriculture
Computational fluid dynamics
Ammonia
Buoyancy
Velocity distribution
171 Downloads (Pure)

Diffuse Ceiling Inlet Systems and the Room Air Distribution

Nielsen, P. V., Jensen, R. L. & Rong, L., 2010, Abstract Book : Clima 2010 : 9-12 May, Antalya: 10 th REHVA WORLD CONGRESS : Sustainable Energy Use in Buildings. Antalya: Clima 2010 : 10th Rehva World Congress, p. 457 1 p.

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearchpeer-review

Open Access
File
2016
37 Citations (Scopus)

Summary of best guidelines and validation of CFD modeling in livestock buildings to ensure prediction quality

Rong, L., Nielsen, P. V., Bjerg, B. & Zhang, G., 2016, In : Computers and Electronics in Agriculture. 121, February, p. 180-190 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

computational fluid dynamics
Agriculture
livestock
Computational fluid dynamics
fluid mechanics
2015
72 Citations (Scopus)

Fifty years of CFD for room air distribution

Nielsen, P. V., 2015, In : Building and Environment. 91, September, p. 78–90 13 p.

Research output: Contribution to journalReview articleResearchpeer-review

computational fluid dynamics
Computational fluid dynamics
air
Turbulence models
Air
2017
31 Citations (Scopus)

Short-range airborne transmission of expiratory droplets between two people

Liu, L., Li, Y., Nielsen, P. V., Wei, J. & Jensen, R. L., 2017, In : Indoor Air Online. 27, 2, p. 452-462

Research output: Contribution to journalJournal articleResearchpeer-review

Manikins
Ventilation
Humidity
Respiratory Tract Infections
Respiration
2010
134 Downloads (Pure)

Diffuse Ceiling Inlet Systems and the Room Air Distribution

Nielsen, P. V., Jensen, R. L. & Rong, L., 2010. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearch

Open Access
File
740 Downloads (Pure)

Diffuse Ceiling Inlet Systems and the Room Air Distribution

Nielsen, P. V., Jensen, R. L. & Rong, L., 2010, Clima 2010 : 10th Rehva World Congress: Sustainable Energy Use in Buildings. Antalya: Clima 2010 : 10th Rehva World Congress, 7 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Ceilings
Heating
Thermal load
Air
Computational fluid dynamics
2011
14 Citations (Scopus)

Validation of CFD Simulation for Ammonia Emissions from an Equeous Solution

Rong, L., Elhadidib, B., Khalifa, E., Nielsen, P. V. & Zhang, G., 2011, In : Computers and Electronics in Agriculture. 75, 2, p. 261–271 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Ammonia
Computational fluid dynamics
ammonia
simulation
mass transfer
2016
3 Citations (Scopus)

Three distinct surgical clothing systems in a turbulent mixing operating room equipped with mobile ultraclean laminar airflow screen: A numerical evaluation

Sadrizadeh, S., Holmberg, S. & Nielsen, P. V., 2016, In : Science and Technology for the Built Environment. 22, 3, p. 337–345

Research output: Contribution to journalJournal articleResearchpeer-review

Operating rooms
Bacteria
Surgery
Ventilation
Computational fluid dynamics
2014
6 Citations (Scopus)

Studying passive ultrafine particle dispersion in a room with a heat source

Ardkapan, S. R., Nielsen, P. V. & Afshari, A., Jan 2014, In : Building and Environment. 71, p. 1-6

Research output: Contribution to journalJournal articleResearchpeer-review

2012
51 Citations (Scopus)

Evaluation of Methods for Determining Air Exchange Rate in a Naturally Ventilated Dairy Cattle Building with large Openings using Computational Fluid Dynamics (CFD)

Wu, W., Zhai, J., Zhang, G. & Nielsen, P. V., 2012, In : Atmospheric Environment. 63, p. 179-188 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

computational fluid dynamics
exchange rate
cattle
air
gas
2014
76 Downloads (Pure)

Draught risk index tool for building energy simulations

Vorre, M. H., Jensen, R. L. & Nielsen, P. V., Oct 2014. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearchpeer-review

Open Access
File
2011
1412 Downloads (Pure)

The "Family Tree" of Air Distribution Systems

Nielsen, P. V., 2011, Roomvent 2011. TAPIR Akademisk Forlag, 12 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
2017
197 Downloads (Pure)

Diffuse Ceiling Ventilation: Design Guide for Wood Wool Cement Panel

Zhang, C., Yu, T., Heiselberg, P. K., Pomianowski, M. Z. & Nielsen, P. V., 2017, Aalborg: Department of Civil Engineering, Aalborg University. 27 p. (DCE Technical reports; No. 226).

Research output: Book/ReportReportResearch

Open Access
File
Ceilings
Wool
Ventilation
Wood
Cements
2019
72 Downloads (Pure)

Evaluating the cooling capacity of diffuse ceiling ventilation system – Full-scale experimental study

Rahnama, S., Nielsen, P. V., Afshari, A., Bergsøe, N. C., Johra, H. & Jensen, R. L., 2019, CLIMA 2019 conference.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Ceilings
Ventilation
Cooling
Air
Diffusers (fluid)
2016

Modelling of coughed droplets in a hospital ward

Sadrizadeh, S. & Nielsen, P. V., 2016, CLIMA 2016: proceedings of the 12th REHVA World Congress, 22-25 May 2016, Aalborg, Denmark. Heiselberg, P. (ed.). Aalborg: Department of Civil Engineering, Aalborg University, Vol. 5. 6 p. 54

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
droplet
modeling
gravity
respiratory disease
infectious disease
2014
1 Citation (Scopus)

Effect of air stability on the continuous and periodic exhalation flow of a person

Xu, C. W., Gong, G. C., Wang, Y. D., Nielsen, P. V. & Liu, L., 25 Sep 2014, In : Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences. 41, 9, p. 106-112 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Ventilation
Air
Trajectories
Smoke
Velocity measurement
2013

Mixing Ventilation: Guide on mixing air distribution design

Müller, D. (ed.), Kandzia, C., Kosonen, R., Melikov, A. K. & Nielsen, P. V., 2013, REHVA : Federation of European Heating and Air-conditioning Associations. 124 p. (Rehva Guidebook; No. 19).

Research output: Book/ReportBookResearchpeer-review

Ventilation
Air
Thermal comfort
Engineers
2012
2 Downloads (Pure)

The Discharge Coefficient of a Centre-Pivot Roof Window

Iqbal, A., Afshari, A., Nielsen, P. V. & Heiselberg, P., 2012, 33rd AIVC and 2nd TightVent Conference: Optimising ventilative cooling and airtightness for (nearly) zero-energy buildings, IAQ and comfort: Proceedings. Copenhagen: AIVC, p. 270-273 4 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Roofs
Orifices
Computational fluid dynamics
20 Citations (Scopus)

Airborne Cross-Infection Risk Between two People Standing in surroundings with a Vertical Temperature Gradient

Nielsen, P. V., Olmedo, I., Adana, M. R. D., Grzelecki, P. & Jensen, R. L., 2012, In : Science and Technology for the Built Environment. 18, 4, p. 552–561 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Thermal gradients
Thermal stratification
Ventilation
Gases
Experiments
2011
115 Citations (Scopus)

Answerss linked to Tang JW, Noakes CJ, Nielsen PV, Eames I, Nicolle A, Li Y, Settles GS. Observing and quantifying airflows in the infection control of aerosol- and airborne-transmitted diseases: an overview of approaches: J Hosp Infect 2011;77:213–222.

Tang, J. W., Noakes, C. J., Nielsen, P. V., Eames, I., Nicolle, A., Li, Y. & Settles, G. S., Jul 2011, In : Journal of Hospital Infection. 78, 3, p. 235-236 2 p.

Research output: Contribution to journalJournal articleResearchpeer-review

2014

Mixing Ventilation System in a Single-Aisle Aircraft Cabin: measurements and design procedure

Nielsen, P. V., Zhang, C., Wojcik, K. & Jensen, R. L., 2014, Proceedings of ROOMVENT 2014, 13th SCANVAC International Conference on Air Distribution in Rooms. Sao Paulo, Brazil: The Organizing Committee of the 13th international ROOMVENT Conference, 8 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Cabins (aircraft)
Ventilation
Air
Experiments
Seats
2013

Test of Different Air Distribution Concepts for a Single-Aisle Aircraft Cabin

Nielsen, P. V., Damsgaard, C., Liu, L. & Jensen, R. L., 2013, Proceedings of Clima 2013: The 11th REHVA World Congress and the 8th international conference on indoor air quality, ventilation and energy conservation in buildings. Prag: Society of Environmental Engineering (STP), 9 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Cabins (aircraft)
Ventilation
Air
Seats
Thermocouples
2011
226 Downloads (Pure)

Thermal Interaction of Closely Spaced Persons

Brohus, H., Nielsen, P. V. & Tøgersen, M., 2011, Indoor Air 2011. Austin, Texas: The University of Texas at Austin, 6 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Enclosures
Cameras
Hot Temperature
Temperature
2015
677 Downloads (Pure)

User-Dependent CFD Predictions of a Backward-Facing Step Flow: Report to participating teams

Peng, L., Nielsen, P. V., Wang, X. & Li, Y., 2015, Proceedings of the 9th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC) - The 3rd International Conference on Building Energy and Environment (COBEE). Tianjin University, 27 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

File
Computational fluid dynamics
Turbulence models
Reynolds number
Experiments
Boundary conditions
2018
2 Citations (Scopus)

Influence of opening and closing process of sliding door on interface airflow characteristic in operating room

Zhou, B., Ding, L., Li, F., Xue, K., Nielsen, P. V. & Xudong, Y., 15 Oct 2018, In : Building and Environment. 144, October, p. 459-473 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Operating rooms
airflow
sliding
air
subversion
2017
253 Downloads (Pure)
Open Access
File
2010

Fluidodinamica computazionale: Applicata alla progettazione della ventilazione

Nielsen, P. V. (ed.), Allard, F., Awbi, H. B., Davidson, L. & Schalin, A., 2010, REHVA : Federation of European Heating and Air-conditioning Associations. 149 p. (Rehva Guidebook; No. 9).

Research output: Book/ReportBookResearch

2014

Computational Fluid Dynamics and Ventilation Airflow

Nielsen, P. V., 2014, Proceedings of Indoor Air 2014. International Society of Indoor Air Quality and Climate, 21 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Ventilation
Computational fluid dynamics
Turbulence models
Smoke
Turbulent flow
2013

Effect of Air Stability on the Dispersal of Exhaled Contaminant in Rooms

Xu, C., Gong, G., Nielsen, P. V., Liu, L. & Jensen, R. L., 2013, Proceedings of SET 2013: 12th International Conference on Sustainable Energy Technologies. The Hong Kong Polytechnic University, p. 2247-2251 5 p. SET2013-401

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

pollutant
air
effect
turbulent mixing
velocity profile
2010
1011 Downloads (Pure)

The IEA Annex 20 Two-Dimensional Benchmark Test for CFD Predictions

Nielsen, P. V., Rong, L. & Cortes, I. O., 2010, Clima 2010 : 10th Rehva World Congress: Sustainable Energy Use in Buildings. Antalya: Clima 2010 : 10th Rehva World Congress, 8 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
prediction
turbulence
two-dimensional flow
three-dimensional flow
steady flow
2011
44 Citations (Scopus)

Observing and Quantifying Airflows in the Infection Control of Aerosol- and Airborne-Transmitted Diseases: an overview of approaches

Tang, J. W., Noakes, C. J., Nielsen, P. V., Eames, I., Nicolle, A., Li, Y. & Settles, G. S., 2011, In : Journal of Hospital Infection. 77, 3, p. 213-222 10 p.

Research output: Contribution to journalReview articleResearchpeer-review

Infection Control
Aerosols
Isolation Hospitals
Manikins
Hydrodynamics
2013

Mixing Ventilation – New REHVA Guidebook No 19

Kosonen, R., Müller, D., Kandzia, C., Melikov, A. K. & Nielsen, P. V., 2013, In : REHVA Journal. 50, 4, p. 64-67 4 p.

Research output: Contribution to journalLiterature reviewCommunication

methodology
2012
52 Citations (Scopus)

Distribution of Exhaled Contaminants and Personal Exposure in a Room using Three Different Air Distribution Strategies

Olmedo, I., Nielsen, P. V., Adana, M. R. D., Jensen, R. L. & Grzelecki, P., 2012, In : Indoor Air. 22, 1, p. 64–76 13 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Manikins
Exhalation
Air
Impurities
Ventilation
2010
1268 Downloads (Pure)

M.Sc. in Indoor Environmental Engineering: Master’s Thesis Ideas 2011

Jensen, R. L., Heiselberg, P., Larsen, O. K., Nielsen, P. V., Pomianowski, M. Z., Le Dréau, J. & Zajas, J. J., 2010, Aalborg: Department of Civil Engineering, Aalborg University, 13 p. (DCE Latest News; No. 19).

Research output: Working paperResearch

Open Access
File
2014

Experimental Study of Chair Ventilation in Office Cubicles

Kong, M., Zhang, J., Nielsen, P. V., Wang, J. & Wang, L., 2014, Proceedings of ROOMVENT 2014, 13th SCANVAC International Conference on Air Distribution in Rooms. Sao Paulo, Brazil: The Organizing Committee of the 13th international ROOMVENT Conference, 9 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Ventilation
Thermal comfort
Air quality
Impurities
Temperature distribution
2010
198 Downloads (Pure)

Different Air Distribution Principles in an Aircraft Cabin

Nielsen, P. V., 2010. 1 p.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Open Access
File
2013
27 Citations (Scopus)

CFD Analysis of the Human Exhalation Flow using Different Boundary Conditions and Ventilation Strategies

Villafruela, J. M., Olmedo, I., Ruiz de Adana, M., Méndez, C. & Nielsen, P. V., 2013, In : Building and Environment. 62, p. 191-200 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Ventilation
ventilation
Computational fluid dynamics
boundary condition
Boundary conditions
2014
9 Citations (Scopus)

Does a mobile laminar airflow screen reduce bacterial contamination in the operating room? A numerical study using computational fluid dynamics technique

Sadrizadeh, S., Tammelin, A., Nielsen, P. V. & Holmberg, S., 2014, In : Patient Safety in Surgery. 8, 1, 27.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
Hydrodynamics
Operating Rooms
Air
Ventilation
Operating Tables
2018
10 Citations (Scopus)

Seasonal variation of window opening behaviors in two naturally ventilated hospital wards

Shi, Z., Qian, H., Zheng, X., Lv, Z., Li, Y., Liu, L. & Nielsen, P. V., 15 Feb 2018, In : Building and Environment. 130, p. 85-93

Research output: Contribution to journalJournal articleResearchpeer-review

Experimental Study of Heavy Contaminant Gas Distribution in a Large Space Chamber

Zhang, Q., Zhang, X., Liu, L. & Nielsen, P. V., 2018, Proceedings: Roomvent & Ventilation 2018. Kosonen, R., Ahola, M. & Narvanne, J. (eds.). Helsinki: SIY Indoor Air Information Oy, p. 803-808 134

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

experimental study
pollutant
gas
air
distribution
2014

Experimental and Numerical Investigation of Effect of Air Stability on Exhaled Air Dispersion

Xu, C., Gong, G., Nielsen, P. V., Liu, L. & Jensen, R. L., 2014, Proceedings of the 3rd International Conference on Sustainable, Design, Engineering and Construction (ICSDEC 2014). 6 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

stratification
air
pollutant
temperature
vertical movement
2011
9 Citations (Scopus)

Questions linked to Tang JW, Noakes CJ, Nielsen PV, Eames I, Nicolle A, Li Y, Settles GS. Observing and quantifying airflows in the infection control of aerosol- and airborne-transmitted diseases: an overview of approaches: J Hosp Infect 2011;77:213–222.

Tang, J. W., Noakes, C. J., Nielsen, P. V., Eames, I., Nicolle, A., Li, Y. & Settles, G. S., Jun 2011, In : Journal of Hospital Infection. 78, 2, p. 150 1 p.

Research output: Contribution to journalComment/debateResearchpeer-review

2010
9 Citations (Scopus)

CFD Modeling of Airflow in a Livestock Building

Rong, L., Elhadidi, B., Khalifa, H. & Nielsen, P. V., 2010, Abstract Book : Clima 2010 : 9-12 May, Antalya: 10 th REHVA WORLD CONGRESS : Sustainable Energy Use in Buildings. Antalya: Clima 2010 : 10th Rehva World Congress, p. 457 1 p.

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearchpeer-review

2016
11 Citations (Scopus)

Numerical simulation of the impact of surgeon posture on airborne particle distribution in a turbulent mixing operating theatre

Sadrizadeh, S., Afshari, A., Karimipanah, T., Håkansson, U. & Nielsen, P. V., 2016, In : Building and Environment. 110, December, p. 140-147 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Theaters
posture
turbulent mixing
clothing
theater
2015

Numerical Simulations of Airflow and Droplet Dispersion in a Horizontal Ammonia Scrubber

Liu, L., Nielsen, P. V., Heiselberg, P. K., Lyngbye, M. & Granath, S., 2015, The Proceedings of the 11th International Conference on Industrial Ventilation. Zhang, Q. (ed.). Tongji University, Vol. 2. p. 615-623 9 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

airflow
droplet
ammonia
simulation
vortex
2010

Ventilation Effectiveness

Mundt, E. (ed.), Mathisen, H. M., Nielsen, P. V. & Moser, A., 2010, REHVA : Federation of European Heating and Air-conditioning Associations. (Rehva Guidebook; No. 2).

Research output: Book/ReportBookResearch