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Conceptual Design and Performance Modeling of a 3KW Single Effect Lithium Bromide/Water Absorption Chiller Operating with Plate Heat Exchangers

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2015

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
This presents the design and performance modeling of a lithium bromide/ water absorption chiller operating with plate heat exchangers for the main components: generator, condenser, evaporator, absorber and solution heat exchanger. The design process involves an optimization procedure. Detailed mathematical equations representing the design of each of the system components are coded into a computer program using MATLAB programming language. An optimization program written in MATLAB was used to study the effect of varying some design parameters: plate thickness, plate width, channel spacing, number of channels on the overall heat transfer coefficient. A mathematical model was developed and programmed in MATLAB to predict the performance of the design. The optimum values of the parameters and system sizes obtained from the design optimization were used in the performance modeling. The performance was predicted as a function of varying external driving conditions. Results indicate that a coefficient of performance (COP) of 0.67 is attainable with hot water inlet temperature to the generator of 90oC and 13oC evaporator chilled water inlet temperature.
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REFERENCES

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