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Modeling and simulation of a two-stage air cooled adsorption chiller with heat recovery.

Number: pap. n. 10

Author(s) : MAKAHLEH F., MAAITAH A. al-, BADRAN A.

Summary

A theoretical study was developed for a two-stage adsorption chiller with an activated carbon/methanol pair. In this work, the following models were conducted numerically using MATLAB: modeling and simulation of the performance of two-stage adsorption chiller with and without heat recovery and then the models were validated by making comparison of the performance with experimental data recorded for an existing two-stage adsorption chiller. The two models were based on 10th order differential equations; six of them were used to predict bed, evaporator and condenser temperatures while the other four equations were used to calculate adsorption isotherm and adsorption kinetics. It was found that the simulation model results for the two stage air cooled chiller agreed well with experimental data in terms of cooling capacity (6.7 kW for the model against 6.14 kW for the experimental result at 30°C cooling water temperature). The COP predicted by this model was 0.17 which is less than 50% of that given by Carnot cycle for the system without heat recovery. The COP predicted by this simulation was 0.4 which was very close to that given by Carnot cycle for the heat recovery mode working at the same operating conditions..

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Pages: 19 p.

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Details

  • Original title: Modeling and simulation of a two-stage air cooled adsorption chiller with heat recovery.
  • Record ID : 30014757
  • Languages: English
  • Source: 5th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Aqaba, Jordan, March 8-10, 2015.
  • Publication date: 2015/03/08

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