Josephine Lau, PhD

Associate Professor

  • 219 Citations
  • 8 h-Index
20032019
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Research Output 2003 2019

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Article
2019
seasonal variation
indoor air
Air quality
air quality
air
2017
1 Citation (Scopus)
Reaction Time
Students
Technology
Costs and Cost Analysis
Equipment and Supplies
2016

Applying demand- controlled ventilation

Lin, X. & Lau, J., Jan 1 2016, In : ASHRAE Journal. 58, 1, p. 30-36 7 p.

Research output: Contribution to journalArticle

Ventilation
Air intakes
Impurities
Air
1 Citation (Scopus)
Absenteeism
Students
Equipment and Supplies
Bacteria
Control Groups
2015
26 Citations (Scopus)

A novel method to determine the motor efficiency under variable speed operations and partial load conditions

Li, Y., Liu, M., Lau, J. & Zhang, B., Apr 5 2015, In : Applied Energy. 144, p. 234-240 7 p.

Research output: Contribution to journalArticle

speed
method
Demonstrations
test
parameter
3 Citations (Scopus)
Multiple zones
Ventilation
Energy conservation
Energy utilization
HVAC
5 Citations (Scopus)

Development of a variable speed compressor power model for single-stage packaged DX rooftop units

Li, Y., Liu, M. & Lau, J., Mar 5 2015, In : Applied Thermal Engineering. 78, p. 110-117 8 p.

Research output: Contribution to journalArticle

Compressors
Fault detection
Failure analysis
Refrigerants
Fans
1 Citation (Scopus)
Midwestern United States
irradiation
Bacteria
bacterium
Control Groups
2014
4 Citations (Scopus)

An optimal control strategy based on virtual flow measuring for variable flow primary pumping

Yang, H., Shi, Y., Lau, J. & Zhang, T. C., May 19 2014, In : HVAC and R Research. 20, 4, p. 411-423 13 p.

Research output: Contribution to journalArticle

Pumps
Pressure control
Energy conservation
Energy utilization
Costs
13 Citations (Scopus)

Demand controlled ventilation for multiple zone HVAC systems: CO 2 -based dynamic reset (RP 1547)

Lin, X. & Lau, J., Nov 15 2014, In : HVAC and R Research. 20, 8, p. 875-888 14 p.

Research output: Contribution to journalArticle

Multiple zones
Carbon Monoxide
Ventilation
Air quality
HVAC
10 Citations (Scopus)

Demand control ventilation: Influence of terminal box minimum airflow setting on system energy use

Zhang, B., Li, Y., Lau, J. & Liu, M., Jan 1 2014, In : Energy and Buildings. 79, p. 173-183 11 p.

Research output: Contribution to journalArticle

Air quality
Ventilation
Energy conservation
Thermal load
Power control
7 Citations (Scopus)

Do all DOAS configurations provide the same benefits?

Deng, S., Lau, J. & Jeong, J. W., Jul 1 2014, In : ASHRAE Journal. 56, 7, p. 52-57 6 p.

Research output: Contribution to journalArticle

Air
Cooling
Ventilation
Temperature
Engineers
6 Citations (Scopus)

Experimental study on electrical signatures of common faults for packaged DX rooftop units

Li, Y., Liu, M., Lau, J. & Zhang, B., Jan 1 2014, In : Energy and Buildings. 77, p. 401-415 15 p.

Research output: Contribution to journalArticle

Fault detection
Failure analysis
Temperature sensors
Refrigerants
Pressure measurement
2 Citations (Scopus)

Heat and mass transfer enhancement potential on falling film absorbers for water-LiBr mixtures via a literature review (RP-1462)

Behfar, A., Shen, Z., Lau, J. & Yu, Y., Jan 1 2014, In : HVAC and R Research. 20, 5, p. 570-580 11 p.

Research output: Contribution to journalArticle

Mass transfer
Heat transfer
Water
Absorption refrigeration
Heat transfer coefficients
2012

DCV for multizone VAV

Lau, J. & Stanke, D., Aug 1 2012, In : ASHRAE Journal. 54, 8, p. 84-86 3 p.

Research output: Contribution to journalArticle

Ventilation
Air quality
Air intakes
Dilution
Energy utilization
7 Citations (Scopus)

Ultraviolet irradiance measurement and modeling for evaluating the effectiveness of in-duct ultraviolet germicidal irradiation devices

Lau, J., Bahnfleth, W., Mistrick, R. & Kompare, D., Aug 1 2012, In : HVAC and R Research. 18, 4, p. 626-642 17 p.

Research output: Contribution to journalArticle

Electric lamps
Ducts
Irradiation
Parallel flow
Ray tracing
2011
Electric lamps
Ducts
Software
Hot Temperature
Irradiation
2009
16 Citations (Scopus)

Estimating the effects of ambient conditions on the performance of UVGI air cleaners

Lau, J., Bahnfleth, W. & Freihaut, J., Jul 1 2009, In : Building and Environment. 44, 7, p. 1362-1370 9 p.

Research output: Contribution to journalArticle

Air cleaners
irradiation
Electric lamps
air
Irradiation
2008
8 Citations (Scopus)

Ultraviolet germicidal irradiation: Current best practices

Martin, S. B., Dunn, C., Freihaut, J. D., Bahnfleth, W. P., Lau, J. & Nedeljkovic-Davidovic, A., Aug 1 2008, In : ASHRAE Journal. 50, 8

Research output: Contribution to journalArticle

Irradiation
Wavelength
Microorganisms
Electromagnetic waves
2007
49 Citations (Scopus)

Floor-supply displacement ventilation for workshops

Lau, J. & Chen, Q., Apr 1 2007, In : Building and Environment. 42, 4, p. 1718-1730 13 p.

Research output: Contribution to journalArticle

computational fluid dynamics
Ventilation
ventilation
supply
Computational fluid dynamics
2006
21 Citations (Scopus)

Energy analysis for workshops with floor-supply displacement ventilation under the U.S. climates

Lau, J. & Chen, Q., Oct 1 2006, In : Energy and Buildings. 38, 10, p. 1212-1219 8 p.

Research output: Contribution to journalArticle

Ventilation
Cooling
Thermal comfort
Air quality
Fans
2003
27 Citations (Scopus)

Measurement and CFD simulation of the temperature stratification in an atrium using a floor level air supply method

Lau, J. & Niu, J. L., Jan 1 2003, In : Indoor and Built Environment. 12, 4, p. 265-280 16 p.

Research output: Contribution to journalArticle

Hydrodynamics
Air
Temperature
Hot Temperature
Lighting