A building energy simulation study is carried out to analyze the performance of a triple-hybrid single-effect vapor absorption cooling system (VACS) operated by solar, natural gas, and auxiliary electricity-based cogeneration. A high capacity small office building subjected to different climatic conditions is considered. The system is designed to continuously maintain a specified building comfort level throughout the year under diverse environmental conditions. Simulations are done at different generator temperatures to investigate the performance in terms of total annual electric energy consumption, heating energy, and the coefficient of performance (COP). The performance of the present VACS is compared with the conventional compression-based system, which demonstrates the electric energy and cost saving potentials of the proposed VACS. Simulation outcomes are well-validated against benchmark data from national renewable energy laboratory and energy conservation building code. Interestingly, it is found that beyond a certain collector area, surplus energy savings can be acquired with the present triple-hybrid VACS as compared to the compression-based cooling. Results also show that COP of the simulated system is in line with experimental values available in the literature. Finally, recommendations are given to operate the complete system on solar and biomass resources, which provide encouraging opportunity for agriculture-based countries.
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February 2019
Research-Article
Energy Saving Potential of a Combined Solar and Natural Gas-Assisted Vapor Absorption Building Cooling System
Gaurav Singh,
Gaurav Singh
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: gaurav.singh@iitrpr.ac.in
Rupnagar 140001, Punjab, India
e-mail: gaurav.singh@iitrpr.ac.in
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Ranjan Das
Ranjan Das
Mem. ASME
Department of Mechanical Engineering,
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: ranjandas81@gmail.com
Department of Mechanical Engineering,
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: ranjandas81@gmail.com
Search for other works by this author on:
Gaurav Singh
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: gaurav.singh@iitrpr.ac.in
Rupnagar 140001, Punjab, India
e-mail: gaurav.singh@iitrpr.ac.in
Ranjan Das
Mem. ASME
Department of Mechanical Engineering,
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: ranjandas81@gmail.com
Department of Mechanical Engineering,
Indian Institute of Technology Ropar,
Rupnagar 140001, Punjab, India
e-mail: ranjandas81@gmail.com
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received April 28, 2018; final manuscript received July 30, 2018; published online September 14, 2018. Assoc. Editor: Gerardo Diaz.
J. Sol. Energy Eng. Feb 2019, 141(1): 011016 (14 pages)
Published Online: September 14, 2018
Article history
Received:
April 28, 2018
Revised:
July 30, 2018
Citation
Singh, G., and Das, R. (September 14, 2018). "Energy Saving Potential of a Combined Solar and Natural Gas-Assisted Vapor Absorption Building Cooling System." ASME. J. Sol. Energy Eng. February 2019; 141(1): 011016. https://doi.org/10.1115/1.4041104
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