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32 articles for “rate of refrigeration”
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Metaheuristic-Based Enhancement of Cooling Capacity in Miniaturized Thermoelectric Refrigeration Systems
Abstract: Because of its small size, dependability, silent operation, and appropriateness for precise thermal management to electronic and portable cooling applications, miniaturized thermoelectric refrigeration systems have received a lot of attention. However, geometrical limitations, electrical losses, and difficulties with heat dissipation frequently limitations their cooling capacity. In order to better understand and improve the cooling performance of miniature refrigeration systems, this work offers a thorough model for mathematics of a single-stage …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 2, 2026 · pp. 17–24 Read article
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Design and Investigation of Peltier Technology for Automobile Air-Conditioning Unit
Abstract: AbstractIn recent years, market of heating, ventilation and air-conditioning system (HVAC) has escalated a lot. These units provide cooling and conditioned atmosphere to automobiles, buildings, cold storage etc. HVAC units are very reliable and effective but they produce some adverse impact on environment. This paper proposes the use of solar energy with thermoelectric (Peltier) technology. In order to determine the efficiency of solar energy assisted thermoelectric module, it is necessary …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 3, 2019 · pp. 37–42 Read article
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Optimizing Heat Transfer Performance in CO2 Finned-Tube Gas Coolers: A Comparative CFD Study of Design Variations
Abstract: Computational fluid dynamics (CFD) simulations and mathematical analysis are used in this study to examine the heat transfer efficiency of CO2 fined tube gas coolers. To maximize heat transfer efficiency, CFD simulations were carried out on a variety of gas cooler designs with variable fin geometry, including offset strip fins, using the ANSYS Fluent program. Under the baseline design, there was a finned tube cooler measuring 610 mm in length, …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 3, 2024 · pp. 1–13 Read article
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Design of Evaporator and Condenser for Solar Adsorption Refrigeration System
Abstract: Solar adsorption refrigeration systems provide a promising alternative for sustainable cooling in regions with limited grid access and high solar availability because they can convert low-grade thermal energy into refrigeration without mechanical compression. The performance of such systems depends strongly on the thermal behavior of the evaporator and condenser, since these components govern the refrigerant evaporation rate, condensation effectiveness, and overall cycle stability. This paper presents focus on the design …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 2, 2026 · pp. 1–10 Read article
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Development of an Energy Free Refrigerator Using LPG as Refrigerant
Abstract: Supply of constant power is as yet not accessible in a few zones of the nation and the residential refrigerator devouring greater power. In this paper, a minimal effort cooler is created utilizing LPG as refrigerant. LPG is put away in barrel at high weight. As this pressurized LPG is gone through the slim container of little inner distance across, the weight of LPG is diminished because of development and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 22–26 Read article
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Performance Analysis of Heat Pump and Air Conditioning System Using R-32 Refrigerant & Theoretical Comparison With R-290 Refrigerant
Abstract: An extensive performance analysis of a heat pump air conditioning system for both cooling and heating applications is included in this research. The purpose of the research is to assess the system's overall performance, energy consumption, and efficiency under various operating scenarios. The research incorporates a range of experimental techniques. An overview of the heat pump air conditioning system's parts and operation is given at the outset of the examination. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 3, 2024 · pp. 14–21 Read article
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Design and Performance Evaluation of A Refrigeration System Utilizing The Peltier Cooling Effect
Abstract: A domestic refrigerator with 5star rating and having capacity 180 Liters consumes 265 units per year. In India average cost of electricity consumption per unit for domestic usage up to 100 units is Rs 5.31per Unit and beyond 300 units it is Rs.8.95 and for industrial it may go beyond Rs 10.45/kWh. This scenario demands for alternative cooling technology that can replace totally VCR (vapour compression refrigeration) system. This thesis …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 1, 2026 · pp. 34–47 Read article
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Dynamic Simulation of Load-Responsive Vapor Compression Refrigeration Systems
Abstract: Because of their dependable operation and effectiveness, vapor compression refrigeration systems, or vapor compression refrigeration (VCRS), have become popular in commercial, industrial, and residential settings. However, under different thermal loads, classic vapor compression refrigeration (VCR) systems may perform less well in that they are usually built for steady-state conditions and run at consistent speeds. In order to improve a load-responsive VCR system’s flexibility, energy efficiency, and response to changing cooling …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 12, Issue 2, 2025 · pp. 32–37 Read article
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Techno-economic Assessment of a Domestic Refrigerator with Aluminium-based Suction Line and Capillary Tube
Abstract: The present work reports the experimental performance evaluation of aluminum suction line-based domestic refrigerators. Furthermore, it compared domestic refrigerators with conventional copper capillary tubes and suction lines using R600a as a refrigerant. Performance parameters: energy consumption, ice-making time, and pull-down time was reduced significantly compared to conventional copper suction and capillary tube. Refrigerants having Ambient temperature for ice making test and pull down were initially set at 43°C and that …
Published in Journal of Polymer & Composites · Vol. 11, Issue 14, 2023 Read article
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Semen Preservation and Artificial Insemination in Bengal Goat at Field Level
Abstract: Semen ejaculates (n=72) were collected from five Black Bengal Bucks by artificial vagina method. Semen samples were evaluated for volume, sperm cell concentration, motility and morphology. Semen samples were preserved using Tris –Egg yolk-Citrate buffer in liquid state at refrigeration temperature. Rural youths (n=21) were trained on artificial insemination (AI) in goats and preserved semen was used for AI in rural villages of West Bengal and kidding rate was recorded. …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 4, Issue 2, 2015 · pp. 25–28 Read article
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Piezo-electrically driven Thermoacoustic Refrigerator
Abstract: Thermoacoustic refrigeration is an emerging field of technology. This technology uses sound waves to pump heat across a temperature gradient and the sound waves are produced using piezoelectric material. The main aim of this idea is to reduce the usage of harmful refrigerants which are great threat to the global warming. The study focuses technically on using the piezo-electric materials to get the desired refrigeration effect. Moreover, the added advantage …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 5, Issue 3, 2018 · pp. 43–47 Read article
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Experimental Investigation on Performance of Vapor Compression Refrigeration System using Nanorefrigerant (R134a+Al2O3) with/without Evaporative Condenser
Abstract: In traditional refrigeration system the main focus of researchers is always to improve its performance by reducing work of compression and enhancing the heat transfer rate in different heat exchangers and this can be achieved by adopting suitable technique. In this research work experiment is carried out on vapor compression refrigeration test rig using nanorefrigerant of R134a as base refrigerant and nanoparticles of aluminium oxide Al2O3 in different concentration so …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 3, 2020 · pp. 1–8 Read article
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Performance Evaluation of Solar Refrigeration System Using the Numerical Methods
Abstract: Abstract Nonconventional sources of energy are main alternate resources which can provide a solution for the faster rate of depletion of fossil fuels. All renewable energy comes ultimately from the sun. We can use the sun directly (as in solar heating systems) or indirectly (as in hydroelectric power, wind power, and power from biomass fuelsetc.).Directly, the solar energy can be used to the maximum extent in ice making industries, air-conditionings, …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 1, 2017 · pp. 1–12 Read article
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Thermal analysis of sustainable composite material absorption refrigeration system for cold storage application
Abstract: Present study deals with thermal analysis of absorption refrigeration system (ARS) and generator-absorber heat exchanger (GAX) based absorption refrigeration system by using green composite like aqua-ammonia. Evaporator temperature is 0°C for cold storage application, condenser temperature is 50°C as per Indian weather condition, mass stream rate of strong solution through the pump is 1 kg/s, and effectiveness of solution heat exchanger and refrigerant heat exchanger is 0.7 considered for present …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 18–27 Read article
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Ecological Optimization of Irreversible Carnot Magnetic Refrigerator
Abstract: Abstract An irreversible Carnot Cycle model is analyzed, with the help of various irreversibility factors, such as finite time analysis and heat leakage. In which, several important performance parameters, such as the cooling rate, coefficient of performance (COP), power input, exergy output rate, entropy generation rate, and ecological function are derived, with taking the assumptions like, heat leakage and the time of the isothermal processes in account. Ecological optimization factor …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 2, 2016 · pp. 61–68 Read article
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Enhance the Thermal Performance and Fluid Flow Behavior in Micro-Tube Heat Exchangers with Variable Fluid Properties for Cooling Applications
Abstract: This paper focus on the substantial effects of fluid property changes and phase change events, this study provides a comprehensive transient assessment of the heat exchanger's thermal performance and fluid flow behaviour for cooling and dehumidification applications. In response to a step-change perturbation, a dynamic model was created and co-simulated to describe the moist air (shell-side) and the two-phase refrigerant (tube-side), as well as their non-linear interactions. The significant correlation …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Environment Free Refrigerator
Abstract: EcoCool is such a solution utilizing thermoelectric cooling—a clean, solid-state technology releasing no harmful gases. This paper examines how EcoCool is designed, constructed, and functions. It's an energy-efficient, portable fridge that benefits the world by emitting zero emissions. Food fresh, medicine stored, and cozy all require refrigeration. Normal fridges though consume gases such as CFCs and HFCs that are toxic to the environment since they destroy the ozone layer and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 2, 2026 · pp. 11–16 Read article
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Understanding Food Spoilage: Mechanisms, Shelf-Life Determination, and Safety Standards
Abstract: Food spoilage poses significant challenges to the global food industry, impacting both food safety and economic sustainability. The main causes of food quality deterioration are microbial and non-microbial spoiling. Microbial spoilage primarily results from the activity of bacteria, yeasts, and molds, which thrive under favorable environmental conditions. These microorganisms can lead to food poisoning and spoilage through the production of off-flavors, discoloration, slime formation, and the accumulation of harmful toxins. …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 14, Issue 1, 2025 · pp. 6–9 Read article
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Analysis of an Evaporative Desiccant Cooling System
Abstract: With the drastic change in climatic conditions in recent years, demand for air conditioning is spreading all over the world. This causes a primary consumption of energy in high quantity. In order to provide the best indoor air quality and thermal comfort with minimum consumption of energy, the desiccant cooling system is one of the options in our daily life. In this work, a theoretical performance study has been done …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 2, 2015 · pp. 31–38 Read article
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Enhancement in the COP of Thermoelectric Cooler Used for Cooling of Small Electronic Circuits
Abstract: Amidst growing environment concern, the need for alternative methods of cooling is on the rise, demanding higher intervention of technological advances. Conventional cooling systems working on CFC refrigerant pose threat to environment. The present work deals with performance investigation of thermoelectric cooler based on Peltier effect. Air cooling and water cooling systems are studied involving several parameter modifications. From the experimental work it is evident that optimum cooling is achieved …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 3, 2019 · pp. 20–23 Read article