Numerical Study of Heat Transfer and Aerosol Deposition in a Room Environment with Under-floor or Baseboard Heating Systems

Document Type: Research Article

Authors

1 Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

2 Department of Chemical Engineering, Sirjan University of Technology, Sirjan, Iran

Abstract

In this study, heat transfer and aerosol deposition in the under-floor and baseboard heating systems have been investigated, numerically. The aim of this study is a comparison between these heating systems. This comparison obtains the optimal heating system with low suspended particles in the air. Computational fluid dynamic with Eulerian-Lagrangian method has been used to simulate fluid and particles flows. The velocity and temperature distribution have been obtained by solving the equations of continuity, momentum and energy. It is resulted that, the radiant heat transfer contains about 63 % and 60 % of overall heat transfer of the under-floor and baseboard heating systems, respectively. Side walls have a same condition for deposing the particles in both of investigated heating systems, approximately. But, in floor heating system, most of the particles are deposited under the roof, while the baseboard heating system has a more percentage of seated particles on the floor.

Keywords


Akbar, M.K. Rahman, M. Ghiaasiaan, S.M. (2009). Particle transport in a small square enclosure in laminar natural convection. Journal of Aerosol Science, 40(9), 747-761.

Aydin, O. Yang, W.j. (2000). Natural convection in enclosures with localized heating from below and symmetrical cooling from sides. International Journal of Numerical Methods for Heat & Fluid Flow, 10(5), 518-529.

Bears, N.S. Banks, P.N. (1985). Indoor air pollution: effects on cultural and historical materials. The International Journal of Museum, Management and Curatorship, 4, 9-20.

Banhidi, L.J. (1991). Radiant Floor Heating Systems. Pergamum press: Design and Application, 103-115.

Chen, Y. Athienitis, A.K. (1998). A three-dimensional numerical investigation of the effect of cover materials on heat transfer in floor heating system. ASHRAE Transactions, 104(2), 1350-1358.

Chui, E.H. Raithby, G.D. (1993). Computation of Radiant Heat Transfer on a Non-Orthogonal Mesh Using the Finite-Volume Method. Numerical Heat Transfer, 23B, 269-288.

Hanibuchi, H. Hokoi, S. (1998). Basic Study of radiative and convective heat exchange in a room with floor heating. ASHRAE Transactions, 104(1), 1098-1105.

Olesen, B.W. (1994). Comparative Experimental Study of Performance of Radiant Floor- Heating systems and a wall panel heating system under dynamic conditions. ASEERAE Transactions, 1, 1001-1023.

Pope, C.A. (2000). Epidemiological Basis for Particulate Air Pollution Health Standards. Aerosol Science and Technology, 32(1), 4-14.

Raithby, G.D. Chui, E.H. (1990). A Finite-Volume Method for Predicting a Radiant Heat Transfer in Enclosures with Participating Media. Journal of Heat Transfer, 112, 415-423.

Roberts, J.W.  Budd, W.T. Ruby, M.G. Camann, D.E. Fortman, R.C. Lewi, R.G. (1992). Human exposure to pollutants in the floor dust of homes and offices. Journal of Exposure Analysis and Environmental Epidemiology, 1, 127-146.

Smagorinsky, J. (1963). General circulation experiments with the primitive equations the basic experiment. Monthly weather review, 91(3), 99-164.

Wallace, L.A. (1996). Indoor particles: a review. Journal of the Air & Waste Management Association, 46, 98-126.

Wilcox, D.C. (2006). Turbulence modeling for CFD industries. DCW Industries, Inc., La Canada CA, 1, 103-217.