In the summer of 2011 a new technology was demonstrated for the first time in a real world setting: an external compound parabolic concentrator powering a double effect absorption chiller. A commercial double-effect hybrid gas-fired chiller was run on solar energy operating at temperatures between 150-180°C. Daily solar collector efficiencies, coefficient of performance and system characterization are presented in this paper. It is shown that the double effect absorption chiller can operate with fixed solar thermal collectors effectively.
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