you are here > DIT Dublin Energy Lab > Personnel > Dr. Michael Crowley

contact:
dublin energy lab,
focas institute,
dublin institute of technology,
dublin 8,
ireland.

t/ +353 1 402 7912
f/ +353 1 402 7904

e/ dublinenergylab@dit.ie

XMLRSS

Michael Crowley PhD

Lecturer

Research Area

Computer simulation of thermal energy flows in buildings and HVAC plant.

Research topics

Mathematical characterization of the building energy simulation problem.

Investigation and development of numerical solution methods that are computationally more efficient than those currently used in this field.

Application of these methods to innovative low energy buildings/systems. These would include the study of ground coupled heat transfer (e.g. basements, labyrinths, ground source heat pumps), ambient cooling potential (e.g. displacement ventilation, chilled ceilings), evaporative cooling and the analysis of meteorological data in this context.

Application of these methods in other fields describable by ordinary differential systems.

Research activities

Main research interests are in the area of detailed computer simulation of heat and mass transfer – especially in the context of buildings and plant. Early work included the investigation and development of numerical methods for stiff systems of ordinary differential equations, which arise in the simulation of energy flows in buildings. Has recently applied this work, within an IEA Expert Group, to the development of highly accurate reference solutions for a series of building-to-ground heat transfer problems. These solutions used to validate ground coupling sub-programs used within whole-building energy simulation programs. Currently developing novel plant arrangements for (low energy) cooling of data centres.

Publications

Journal papers

Crowley, M.E., Hashmi, M.S.J. (2000). Improved direct solver for building energy simulation. Proceedings of the Chartered Institution of Building Services Engineers, Series A, Building Services Engineering Research and Technology, 21 (3): 167-173.

Crowley, M.E., Hashmi, M.S.J. (1998). Evaluation of implicit numerical methods for building energy simulation. Proceedings of the Institution of Mechanical Engineers, Part A, Journal of Power and Energy, 212 (A5): 331-342.

Conference papers

Crowley, M.E. Validation of solution methods for building energy simulation. Proceedings of 4th Biennial Building Performance Simulation Conference, University of Toronto, Canada, May 2006.

Crowley, M.E., Hashmi, M.S.J. Development of exponential-fitted numerical methods for building energy simulation. Proceedings of Proceedings of joint CIBSE/ASHRAE conference, Royal College of Surgeons, Dublin, September 2000.

Crowley, M.E., Hashmi, M.S.J. Evaluation of implicit numerical methods for building energy simulation. Proceedings of 2nd European Conference on Energy Performance and Indoor Climate in Buildings and 3rd International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, Lyon, France, November 1998.

Crowley, M.E., Hashmi, M.S.J. Analysis of quasi-linear solution method in Environmental Systems Performance and presentation of a new related method. Proceedings of 3rd International Congress on Heating and Air Conditioning of Buildings: Energy and Environment, University of Maribor, Slovenia, May 1998.

Research reports

Neymark, J., Judkoff, R., Beausoleil-Morrison, I., Crowley, M., Deru, M., Henninger, R., Nakhi, A., Ribberink, H., Thornton, J., Wijsman, A., Witte, M. (2007). IEA BESTEST In-Depth Diagnostic Cases for Ground Coupled Heat Transfer Related to Slab-On-Grade Construction. Golden, Colorado: National Renewable Energy Laboratory. In Conjunction with International Energy Agency Solar, Heating and Cooling Programme Task 34 / Energy Conservation in Buildings and Community Systems Annex 43. [Draft final report in progress]

Abstracts

Crowley, M.E., Hashmi, M.S.J. Efficient, implicit solvers for building energy simulation. Proceedings of 9th Annual Symposium of the Irish Society for Scientific and Engineering Computation, University College Galway, May 2002.

Crowley, M.E., Hashmi, M.S.J. Development of a direct solution method for building energy simulation. Proceedings of 8th Annual Symposium of the Irish Society for Scientific and Engineering Computation, University College Dublin, May 2001.

   
t/ +353 1 402 3825
f/ +353 1 402 3825
e/ michael.crowley@dit.ie
   
@/ Bolton Street