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Science and Technology for the Built Environment Volume 23, 2017 - Issue 1
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General Issue

Energy balance analysis of HVAC divided flow fittings

Devendra KulkarniField Controls, Inc., 2630 Airport Road, Kinston, NC28504, USACorrespondence[email protected]
&
Stephen IdemDepartment of Mechanical Engineering, Tennessee Tech University, Cookeville, TN, USA
Pages 218-225 | Received 12 Oct 2015, Accepted 30 Jun 2016, Published online: 13 Sep 2016

References

  • ASHRAE. 2015. Duct Fitting Database Version 6.00.04. Atlanta: ASHRAE.
  • ASHRAE. 2008. ANSI/ASHRAE Standard 120-2008, Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings. Atlanta, GA: ASHRAE.
  • Brooks, P.J. 1993. New ASHRAE local loss coefficients for HVAC fittings. ASHRAE Transactions 99(2):169–93.
  • Gibbs, D.C., and S. Idem. 2012. Measurements of flat oval diverging-flow fitting loss coefficients. ASHRAE Transactions 118(1):1146–53.
  • Idel’chik, I.E., M.O. Steinberg, G.R. Malyavskaya, and O.G. Martynenko. 1994. Handbook of Hydraulic Resistance, 3rd Ed. Boca Raton, FL: CRC Press/Begell House.
  • Idem, S. 2003. Main loss coefficient measurements for flat oval tees and laterals. ASHRAE Transactions 109(1):456–61.
  • Idem, S. and F. Khodabakhsh. 1999. Influence of area ratio on flat oval divided flow fitting loss coefficients. Science and Technology for the Built Environment 5(1):19–33.
  • Kulkarni, D., J. Cui, and S. Idem. 2011. Laboratory testing of converging flow flat oval tees and laterals to determine loss coefficients. Science and Technology for the Built Environment 17(5):710–25.
  • Kulkarni, D., S. Khaire, and S. Idem. 2009a. Influence of aspect ratio and hydraulic diameter on flat oval elbow loss coefficients. ASHRAE Transactions 115(1):48–57.
  • Kulkarni, D., S. Khaire, and S. Idem. 2009b. Measurements of flat oval elbow loss coefficients. ASHRAE Transactions 115(1):35–47.
  • Nalla, A.N., and S. Idem. 2012. Laboratory testing of saddle-tap tees to determine loss coefficients. ASHRAE Transactions 118(1):1131–45.
  • Sun, Y., S.E. Ford, and Y. Zhang. 2015. Laboratory testing of flat oval transitions to determine loss coefficients. Science and Technology for the Built Environment 21(4):386–95.
  • Townsend, B, F. Khodabakhsh, and S. Idem. 1996a. Loss coefficient measurements in divided-flow flat oval fittings. ASHRAE Transactions 102(2):151–8.
  • Townsend, B., F. Khodabakhsh, and S. Idem.1996b. Loss coefficient measurements for flat oval elbows and transitions. ASHRAE Transactions 102(2):159–69.
  • White, F.M. 2015. Fluid Mechanics, 8th Ed. New York: McGraw Hill.

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