Potential application of a novel integrated Adsorption-Absorption refrigeration system powered with solar energy in Australia

Author(s):  
Rasoul Nikbakhti ◽  
Aghil Iranmanesh
2014 ◽  
Vol 953-954 ◽  
pp. 66-73
Author(s):  
Yan Ling Liu ◽  
Xue Zeng Shi ◽  
Yuan Yu

This paper presents the design of a solar/gas driving double effect LiBr-H2O absorption system. In order to use solar energy more efficiently, a new kind of solar/gas driving double effect LiBr-H2O absorption system is designed. In this system, the high-pressure generator is driven by conventional energy, natural gas, and solar energy together with water vapor generated in the high-pressure generator, which supplies energy to the low-pressure generator for a double effect absorption system. Simulation results illustrate that this kind of system is feasible and economical. Economic evaluation of several systems is also given in this paper in order to get a clear knowledge of the energy consumption of the system.


This paper represents design and performance evaluation with experiments tests of solar-biogas powered hybrid vapour absorption refrigeration system. The system designed for 40 liter capacity with 0.05 TR for cooling Amonia- water mixtures. This refrigerator system was designed 140°C temperature for generator by heating source like solar energy and biogas flame. Biogas flame as heat source was produced more than 140°C temperature and COP of the system achieved 0.134 individually. When system whole day working with biogas flame. Solar energy which was used 4 to 5 hours daily when solar radiation was available. In this case when solar thermal as heat source was produced only 70°C temperature but in the case of solar panel direct current supply to heater, heater as a heat source was produced approximately 150°C temperature. In case hybrid powered when 18 hours using biogas flame as heat source and 4 to 6 hours hour solar energy in the form of solar panel DC supply, COP had achieved 0.1.


2020 ◽  
Vol 170 ◽  
pp. 02011
Author(s):  
Varun Yadav ◽  
Supradeepa Panual G ◽  
Neeraj Yadav ◽  
Ratnam Bordia ◽  
Rohini Soni ◽  
...  

Engineering is all about the application of knowledge and ideas for continuous development in society. In today’s world, there is a strong need for an environment-friendly refrigerating system, therefore, our focus is on a solar powered vapour absorption refrigeration system. This project focuses on a cooling system that minimizes the dependency over electricity and to show our ability to save our resources for future generations. The objective of this work was to design and fabricate a vapour absorption refrigeration system, using LiBr-H20, as the refrigerants and powered by solar energy. Performance Evaluation of the system has been done on the basis of different operating conditions and parameters like, solar irradiance, collector, generator, condenser and evaporator temperature. The COP of the system was obtained as 0.1 and the capacity was 0.01 TR. Since it’s an ab-initio development it will be a unique one in terms of understanding and underlying engineering. The system is an eccentric one that can be operated by multiple heat sources like solar energy, biomass etc. without much change in the design. This system can be used to develop an Air Conditioner, Refrigerator or a Chiller.


2020 ◽  
Vol 28 (03) ◽  
pp. 2050025
Author(s):  
Ahmed Al-Samari ◽  
Yasseen A. J. Almahdawi ◽  
Laith Abd hasnawi Al-Rubaye

This study aims to design an absorption refrigeration system and estimate the heat energy demand. Moreover, this paper investigates the opportunity of using alteration of energy resources such as solar energy. The trough parabolic solar collectors TPC system is suggested and analyzed as a heat energy resource. Actual data of TPC are presented in this work to evaluate the size needed to guarantee enough heat sources that is running the refrigeration system. The outcome of this calculation proved that each 1[Formula: see text]T.R needs about 11.1[Formula: see text]kW of heat energy. The COP of the refrigeration system is found to be about 0.313. Moreover, the TPC generates about 100[Formula: see text]W/m2. However, the optimum TPC may generate about 380[Formula: see text]W/m2 in Iraqi climate. This value of heat generated represents the maximum energy at clear sky. The calculations are validated based on experimental and proven data.


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