A model has been developed to predict the evaporative heat transfer coefficient in a horizontal tube falling evaporator and has been applied to evaluate overall performance of a desalination unit. Performance variation with different parameters like operation pressure, temperature, tube diameter, spatial arrangement of the tubes and the type of water distribution system has been studied. Also, variation of the mass flow rate of distilled water inside the exchanger is analyzed. The predicted transfer characteristics obtained from the simulations are compared with the experimental data. It has been observed that the model is able to predict the trends of heat transfer characteristics of the evaporator reasonably well. However, at low liquid film flow rate conditions, the model over predicts the heat transfer characteristics marginally. In order to improve the evaporative exchanger performance, it is observed that preheating of the liquid film before injection into the evaporator is desirable.
Skip Nav Destination
ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
July 11–15, 2004
Charlotte, North Carolina, USA
Conference Sponsors:
- Heat Transfer Division and Fluids Engineering Division
ISBN:
0-7918-4692-X
PROCEEDINGS PAPER
Performance Model for a Horizontal Tube Falling Film Evaporator in a Desalination Unit
Rohit Sharma,
Rohit Sharma
Indian Institute of Technology – Bombay, Mumbai, India
Search for other works by this author on:
Sushanta K. Mitra
Sushanta K. Mitra
Indian Institute of Technology – Bombay, Mumbai, India
Search for other works by this author on:
Rohit Sharma
Indian Institute of Technology – Bombay, Mumbai, India
Sushanta K. Mitra
Indian Institute of Technology – Bombay, Mumbai, India
Paper No:
HT-FED2004-56306, pp. 105-112; 8 pages
Published Online:
February 24, 2009
Citation
Sharma, R, & Mitra, SK. "Performance Model for a Horizontal Tube Falling Film Evaporator in a Desalination Unit." Proceedings of the ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. Volume 3. Charlotte, North Carolina, USA. July 11–15, 2004. pp. 105-112. ASME. https://doi.org/10.1115/HT-FED2004-56306
Download citation file:
8
Views
Related Proceedings Papers
Related Articles
Experiments on Heat Transfer in a Thin Liquid Film Flowing Over a Rotating Disk
J. Heat Transfer (April,2004)
Heat Transfer to Water-Oxygen Mixtures at Supercritical Pressure
J. Heat Transfer (June,2004)
Flow Visualization and Local Measurement of Forced Convection Heat Transfer in a Microtube
J. Heat Transfer (March,2010)
Related Chapters
Regression Target – Objective Function
Nonlinear Regression Modeling for Engineering Applications: Modeling, Model Validation, and Enabling Design of Experiments
Developing Human Performance Measures (PSAM-0207)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Evaluation of the Analytical Bottom-Up SIL Proof by Statistical Top-Down Methods (PSAM-0242)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)