Search
82 articles for “Refrigeration effect”
-
Efficient Cooling by Solar Hybrid Air Conditioning System
Abstract: This paper introduced about general properties of solar hybrid air conditioning system consisting of R22 refrigerant in vapour compression refrigerant cycle with solar still system construction. The solar still is a construction made with GI sheet box with tapered shape and a glass is kept over the tapered box at 18˚ angle and box is coated with black paint for trapping solar radiation inside the box by greenhouse effect. This …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
-
Future Refrigerator which Does Not Require Compressor
Abstract: It sounds crazy a refrigerator made from a rubber band. But if one stretches a rubber band and hold it against one's lips, it will be noticeably warmer. If it is released, it cools. This simple "elastocaloric" effect can transfer heat in much the same way as compressing and expanding a fluid refrigerant in a fridge or air conditioner. Now, researchers have created a version that not only stretches the …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 1, 2020 · pp. 41–44 Read article
-
Modeling and Simulation of Heat and Mass Exchanges in Refrigerated Compartment of a Truck
Abstract: This paper presents a numerical model to simulate, in dynamic regime, the heat and mass exchanges in refrigerated compartment of a truck coupled with its refrigeration machine. The model of the refrigerated compartment developed, is based on mass and energy balances of the air inside the compartment. Heat exchanges through the walls, including the thermal bridges, are calculated. Another sub-model determines the heat and humidity exchanges during the door openings. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 · pp. 21–29 Read article
-
Development and Evaluation of a Coconut-Based Jam
Abstract: Background: Conventional coconut jam formulations rely heavily on refined sucrose to achieve sweetness, texture, and preservation, limiting their suitability for individuals seeking reduced-sugar dietary options. The growing demand for nutritionally improved food products has encouraged the development of alternative formulations using natural sweet ingredients and polyol-based humectants. Objective: The present study aimed to develop and standardize a coconut-based reduced-sugar jam using coconut milk, dates, raisins, sorbitol, glycerine, citric acid, sodium …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 13, Issue 1, 2026 · pp. 13–18 Read article
-
Performances of NH3-H2O Vapour Absorption Refrigeration Cycles
Abstract: To achieve vital enhancements on micro-scale to buildings, cooling, heating and power systems for residential and light-weight industrial buildings, absorption cooling technology gift a chance. Their resultant effects are effective, energy economical and economical recent developments in. This study thus contributes a vital information and methodology within the development, fabrication and application of an absorption icebox as a higher various to the normally used mechanical device refrigerators. 2 fluid gas …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 1, 2019 · pp. 9–13 Read article
-
Effect of Minimum Quantity Lubrication on temperature dissipation in machining of AISI 4130
Abstract: Abstract: Minimum Quantity Lubrication (MQL) has good cooling effects and is gaining importance due to environment friendly machining. MQL proving to be an alternative to flood cooling besides it reduces the cost. The present study is based on MQL parameters performance on temperature of grinding zone. Experiment results were compared of three different vegetable oils. It was found out if with controlled grinding environment MQL can be at par with …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 3, 2017 · pp. 13–20 Read article
-
Study on Server Cabinet Cooling System: A Review
Abstract: The goal of data centre mechanical system research and development is to improve the energy efficiency and reliability. Several new cooling solutions, which including hybrid/liquid cooling systems and free cooling systems, have been successfully implemented in production data centres, with enhanced Power Usage Effectiveness when compared to traditional air-cooling data centres. But the research in small scale data centre cooling is not taken in consideration. In this project we are …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 1, 2022 · pp. 38–42 Read article
-
Effect of Different Cooling Pad Materials on the Performance of the Evaporative Cooler
Abstract: Air conditioning (AC) becomes the most necessary appliance in homes and offices in every developed and developing country for achieving the required thermal comfort condition. But the literature reveals that the excessive use of AC creates physiological discomfort such as headache, alleging symptoms (fever, cold, itching) chest pain, etc. The above mention issues may be mitigated up to a certain level by using an evaporative cooler instead of ACs. The …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 3, 2023 · pp. 31–35 Read article
-
Effect of Blanching on the Quality of Frozen Product of Carrot
Abstract: Carrot is one of the important root vegetables rich in bioactive compounds. The consumption of carrot and its products is increasing steadily due to its recognition as an important source of natural antioxidants having anticancer activity. Blanching is scalding the vegetables in water or in steam for a short time. The influences of blanching on the frozen product of carrots were investigated to determine the quality and shelf life of …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 4, Issue 3, 2015 · pp. 1–9 Read article
-
Experimental Evaluation of Environmental Friendly and Low Global Warming Refrigerants as an Alternative Option for Window Air Conditioning System
Abstract: This paper presents an experimental evaluation and performance comparison of window air-conditioning system with R-410A and R32 and to compare with HCFC-22 refrigerant. The base line test is performed with 2 “Ton of Refrigeration” (TR) capacities air conditioner, with evaporator temperature of 7.2 °C and condenser temperature of 54.4 °C. The coefficient of performance (COP) of the refrigerants R32, R22 and R410A are 3.81, 3.15 and 2.17 respectively simulated; it …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 3, 2014 · pp. 7–13 Read article
-
Theoretical Thermodynamic Investigation of Double Effect LiBr-H2O Vapour Absorption System Driven by Exhaust Gases of I.C. Engine and Simulated by EES Software
Abstract: Abstract This work presents a study of a Lithium Bromide-Water vapour absorption system used for automobile air conditioning system, this system using the exhaust waste heat of I.C. Engine. The effect of various parameters on coefficient of performance of Li-Br water vapour discussed. This study also illustrates various advantages of using VAS. The main purpose of this investigation is to explore the feasibility of using waste low grade energy driven …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 38–46 Read article
-
Twisted Tape Insert Effect on Heat Transfer Enhancement Placed in Smooth Tube: A Review
Abstract: Today heat exchangers are commonly used with twisted-tape inserts to improve convectiveheat transfer in various industries such as thermal power plants, chemical processing plants,air conditioning equipment, refrigerators, petrochemical, biomedical, and food processingplants. By using the twisted tape patch, the fluid flow swirls together, interrupting a thermalboundary layer on the surface of the pipeline. Heat exchanger thermal efficiency can beenhanced by heat transfer increase techniques. Tape insert is one of the …
Published in Journal of Thermal Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 25–28 Read article
-
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
-
Experimental and CFD Analysis on a Hybrid Cooler
Abstract: AbstractSince the invention of air conditioners, it has been used widely all over the world. The harmful effects of ACs cannot be ignored as far as the environment is concern. AC being widely used, needs a suitable alternative for sustainable goals to be achieved. Air conditioning with the help of forced ventilation system is studied in this research work. Its implementation and effects on the room temperature is studied in …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 3, 2019 · pp. 1–8 Read article
-
Fabrication and Design of AC Water Heater
Abstract: As we know the construction of split air conditioner where we put evaporator unit indoors which gives cool conditioned air meanwhile the condenser is kept outside or outdoors which continuously give heat to the environment from refrigerant during the time of air conditioner is working. The heat which is getting discharge from the condenser is very large enough that it ranges between 4 and 6 times greater than power of …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 1, 2022 · pp. 33–37 Read article
-
Exploration of Effect of Geometrical Parameters on Ejector Effectiveness
Abstract: The motivating fluid stream's own internal power and pressure-related flow work are transformed into kinetic energy via the ejector's operating principle. The present investigation examines how different operating environments and geometrical factors affect the efficiency of steam ejectors used in refrigeration operations. The geometrical parameters and operating conditions are mixing section length, radius, and the primary nozzle exit radius, thermally driven heat pumps for heating and cooling can be promising …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 14–22 Read article
-
Evaluation of Shelf-life of Low-fat Paneer from Reconstituted Milk
Abstract: Low-fat paneer was prepared from reconstituted milk (1.5 % fat/12.0 % MSNF) using WPC-80 as fat replacer. It was packed in 12 m polyester + 50 m LD/LLDPE laminated pouches and stored at refrigeration temperature (7+2 °C). The shelf-life of paneer was checked on the basis of sensory and microbiological evaluation. Chemical parameters viz. acidity, free fatty acids and soluble nitrogen content as well as textural properties were also analysed …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 10, Issue 3, 2021 · pp. 8–12 Read article
-
Phase Change Material in the Heat Exchanger for Improved Performance of Latent Refrigeration Storage Systems
Abstract: Using phase change materials (PCMs) in conjunction with a latent cool storage system is an efficient method of storing cool energy. It has the advantage of storage process with isothermal nature and storage of high energy density. Within last few years it has been inspected that in cool storage applications, PCM’s have been widely used. PCM’s are melted and solidified at wide ranges and temperatures and hence are attractive in …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 2, 2023 · pp. 19–29 Read article
-
Heat Transfer Augmentation in Twisted Rectangular Channel
Abstract: Abstract The best way to profoundly and scientifically concentrate the heat exchange upgrade of nanofluids under turbulent course through twisted rectangular channels under consistent heat flux conditions on every one of the walls is to look at the marvel numerically. The nanofluids are fundamentally the strong nanoparticle of CuO suspended in water arranged chemically. CFD investigation is led utilizing FLUENT programming by the limited volume technique. The limit conditions connected …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 47–55 Read article
-
Recent Developments in Solar Photovoltaics and Thermal Hybrid Technology
Abstract: The electrical performance of solar PV panel decreases with increase in the panel/module temperature which is cause of concern in the summer season. To decrease the effect on electrical performance due to increase in module temperature, heat is extracted from the module and used as thermal energy. Heat exchanger or heat extraction device is put on the rear surface of the PV panel and working fluid or coolant is flowed …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 14–34 Read article