Sage Journals: Discover world-class research

Abstract

One of the fundamental components in engineering practice is the heat exchanger. The fin-tube heating coil of an air handling unit (AHU) is one important component in an HVAC system. In order to study the fault detection and diagnosis (FDD) strategy for an HVAC system, a general model of a fin-tube heat exchanger which is accurate and adaptable is necessary. On the basis of the physical conservation law, a dynamic discretization parameter model is built by Simulink^Ò. The heat exchanger is split into small elements to increase the accuracy of the model. The dynamic behaviour of the fin-tube heat exchanger is studied under the condition of step changes on the opening of the control valve. Research has been performed on an AHU and the simulation results show good accordance with the measurements. Correction on heat transfer coefficient has been introduced to increase the accuracy. Matlab^Ò S-function is used to decrease the computational time of the simulation.

Get full access to this article

View all access options for this article.

References

Chapman AJ. Heat transfer. New York: Macmillan Publishing Company, 1984.

Kabelac S. Transient response of finned crossflow heat exchangers. Int. J. Heat Mass Transfer 1989; 32: 1183–1189.

Xia L , De Abreu GJA , Hartley TT. Modelling and simulation of a heat exchanger. IEEE Int. Conf. on Systems Engineering. Piscataway, NJ: 1991: 453–456.

Holmes MJ. System simulation: Heating and cooling coils. IEA Annex 10 final report. 1987.

Underwood DM , Crawford RR. Dynamic nonlinear modeling of a hot-water-to-air heat exchanger for control applications. ASHRAE Trans. 1991; 1: 149–155.

Lute PJ. PhD thesis. Delft: Delft University of Technology, 1992.

Jonsson G , Palsson OP , Sejling K. Modeling and parameter estimation of heat exchangers — a statistical approach. Journal of Dynamic Systems, Measurement and Control, Trans. ASME 1992; 114: 673–679.

Xuan Y , Roetzel W. Dynamics of shell-and-tube heat exchangers to arbitrary temperature and step flow variations. AIChE Journal 1993; 39: 413–421.

Rahman MHRF , Devanathan R Sr. Modelling and dynamic feedback linearisation of a heat exchanger model: Proceedings IEEE Conf. on Control Applications. Piscataway, NJ: 1994: 1801–1806.

10.

Chantre P , Maschke BM , Barthelemy B . Physical modeling and parameter identification of a heat exchanger: Proceedings 20th International Conference on Industrial Electronics, Control & Instrumentation. Bologna: 1994: 1965–1970.

11.

Du P , Xu Y. Transient characteristics of parallel flow plate-fin heat exchangers: Proceedings International Conference on Energy and Environment. Shanghai: 1995: 442–447.

12.

SharifiF , Narandji MRG , Mehravaran K. Dynamic simulation of plate heat exchanger. Int. Comm. Heat Mass Transfer 1995; 22: 213–225.

13.

Chuah YK. Experiments on the dehumidification performance of a finned tube heat exhanger. Int. J. HVAC & R Research 1998; 4: 167–178.

14.

Holman JP. Heat transfer, eighth edition. New York: McGraw-Hill, 1997.

15.

Yu B. Test-facility of FDD on building HVAC system — testfacility project. Project report K-301, 2000.

16.

Kays WM , Crawford ME. Convective heat and mass transfer, third edition. New York: McGraw-Hill, 1993.

17.

Kakaç S et al. Handbook of single-phase convective heat transfer. New York: John Wiley, 1987.

Modelling analysis on fin-tube heating coil of air handling unit

Abstract

Get full access to this article

References