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11 articles for “Exergetic efficiency.”
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Exergetic Analysis of Single Effect LiBr-Water Absorption Cooling System
Abstract: Abstract This paper presents the exergy analysis of single effect LiBr-Water absorption cooling system. The work is committed to the study, the evaluation and distribution of the destroyed exergy for each component constituting this kind of system. The thermodynamic models, derived using the first and second laws of thermodynamics, are employed in a computer program using the engineering equation solver (EES) software to perform the calculations. Influence of various operating …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 2, 2016 · pp. 41–48 Read article
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Exergy Analysis of Evacuated Tube Two Fluid Solar Water Heating System
Abstract: The topic of the research of solar energy has become a matter of great concern due to energy crisis all over the world. Solar energy is the very promising source of energy i.e. easily available. In this study, exergy analysis of evacuated tube two fluid solar water heating system is carried out along with vertical shell and tube heat exchanger. In this study, energy quality and quantity of the system …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 2, 2016 · pp. 6–11 Read article
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Thermal Analysis (Energy and Exergy) of Crystalline Silicon Solar Photovoltaic Module for Hazy Day
Abstract: Abstract With the growing population, demand for a renewable energy source has reached to peak level. It is necessary to have that source available easily and in sufficient quantity so that with the diminishing non-renewable source, basic need of energy can be fulfilled. This source can be the all-time available source, ‘solar energy’. Concern of most of the countries is just to make the availability of this source better and …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 8–19 Read article
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Design And Optimization Of Performance Parameters Of Indirect Solar Drying System
Abstract: The objective of the work being presented is to design and develop an indirect solar dryer in the renewable energy laboratory of Mechanical Engineering Department, I.I.T BHU Varanasi and evaluate its performance under the climatic conditions of Varanasi, U.P India. The main components of indirect solar dryer are flat plate solar collector, drying chamber, blower and other accessories of the drying system. Originally built Shukla-Sharma dryer for drying aonla was …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 1–22 Read article
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Comprehensive Thermal and Environmental Investigation of An Enhanced Evacuated Tube Solar Water Heater with Wavy Tape and Latent Heat Storage
Abstract: Evacuated tube solar collectors (ETSCs) are widely used for thermal energy applications; however, enhancing their thermal and exergetic efficiency remains a challenge. This study investigates performance enhancements through structural and material alterations. Four ETSC cases were tested experimentally, case-1: a standard ETSC, case-2: Wavy tape (WT) inserted ETSC, case-3: Phase change material (PCM) integrated ETSC, and case-4: Dual-Enhanced ETSC (PCM + WT). A binary eutectic PCM was utilized for latent …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 12, Issue 2, 2025 · pp. 1–16 Read article
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Energy and Exergy Analysis of Ammonia Water Operated Vapour Absorption Refrigeration System Using Artificial Neural Network Approach
Abstract: In this study, energy and exergy analysis have been performed of the ammonia-water operated vapour absorption refrigeration (VAR) system. Authors have trained artificial neural network (ANN) for predicting thermodynamic properties (specific enthalpy and specific entropy) of working fluid (ammonia-water). Authors have achieved coefficient of multiple determination (R2) value 0.9999 and the root mean square error (RMSE) value 0.00211 for input data set of saturated liquid and R2 value 0.999999 and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 · pp. 7–20 Read article
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Recent Advances to Compare the Performance of Domestic Refrigerator Using New Eco-friendly Refrigerants
Abstract: This paper presents the performance comparison of new eco-friendly refrigerants in domestic refrigerator with respect to energy and exergetic analysis. To make an alternative arrangement of R12 or R134a, and for comparing the performance of new refrigerants some factors and technologies are important which is required to be considered likes their thermodynamics properties, GWP, ODP, energy and exergy analysis, TEWI analysis. In the ongoing work many experimental investigations were made …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 8, Issue 3, 2021 · pp. 18–29 Read article
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Parametric Study of Parabolic Trough Solar Collector System: A Review
Abstract: The detailed thermal analysis of a parabolic trough collector (PTC) was carried out to predict the thermal performance. The analysis is based on the established theory of PTC—the radiation absorption, heat loss from the collector, and temperature distribution on the plate. An analytical program, suitable for use on a digital computer is developed for the purpose of studying the hourly behavior of a solar collector. The exergy output is optimized …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 46–50 Read article
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Energetic and Exergetic Investigation on Vapor Compression Refrigeration System Using Ag₂O-R134a Nanofluid as Refrigerant
Abstract: This paper experimentally explored energetic and exergetic performance investigation of VCR System using Ag₂O-R134a Nanofluid as Refrigerant. The integration of silver oxide (Ag₂O) nanoparticles within polymer and composite materials offers promising avenues for enhancing the thermal and physical properties of advanced systems. The energetic and exergetic performance study of VCR were investigated with test parameters including compressor power consumption, cooling capacity, coefficient of performance (COP), discharge temperature, irreversibility in the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 279–287 Read article
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An Exergetic based Assessment of Biogas as an Energy Source in a Hybrid Refrigeration System
Abstract: The analysis of biogas operated Ammonia-Water vapor compression absorption (hybrid) refrigeration system was carried out based on computational model being developed and the thermodynamic properties of working fluids have been used from the computer code. The variation of performance parameters such as exergy loss, COPCOOLING, COPHEATING and Exergy efficiency are studied with varying generator temperature, evaporator temperature, condenser and absorber temperature. The results indicate that maximum COP cooling as well …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 2, 2014 · pp. 31–40 Read article
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On Suitability of Supercritical Carbon Dioxide As Heat Transfer Fluid in Flat Plate Solar Collector
Abstract: In the present article, carbon dioxide is proposed as a heat transfer fluid for flat-plate solar thermal collector. Energetic, exergetic and economic analyses of flat plate collector using supercritical CO2 have been done and compared with conventional fluid (water) as well as advanced fluid (nanofluids). Effects of zonal ambient temperature and incident solar radiation on collector efficiency, irreversibility, second law efficiency and collector size reduction are presented. Due to lower …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 3, 2014 · pp. 33–41 Read article