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181 articles for “Refrigerant.”
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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
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Efficient Cooling with Peltier Modules: A Guide to Air Cooler Design
Abstract: The average annual temperature is rising due to the daily rise in global warming, which makes life more difficult and stressful for those who live in load-shedding-affected areas. Modern cooling technologies, such as air conditioners and coolers, are useless during the hottest parts of the day because they don't use inverters to generate backup electricity. In order to address the issues of portability, economy, and cost-effectiveness, the idea of alternative …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 2, 2023 · pp. 42–47 Read article
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Preserving Papaya Pulp with Potassium Metabisulfite: A Study on Prolonging Shelf Life
Abstract: Papaya is a highly perishable fruit with a shelf life of only 3 to 6 days under tropical conditions, leading to significant postharvest losses. This study aimed to preserve papaya pulp for subsequent use in product development .Pulp was extracted from “Indian Red Lady Variety” of papaya and treated with potassium metabisulphite (KMS) at concentrations of 500, 1000 and 1500 ppm. The treated pulp was stored at room and refrigerated …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 13, Issue 2, 2024 · pp. 06–14 Read article
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Design and Analysis of Vortex Tube
Abstract: AbstractNowadays refrigeration plays a vital role in our day to day life for the preservation of food, medicine, and air conditioning. In the current situation conventional refrigeration system most of the time uses freon as a refrigerant. Which is mainly responsible for the depletion of the ozone layer and hence it indirectly affects the health of the human being. To overcome all these difficulties vortex tube can be used as …
Published in Journal of Thermal Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 30–36 Read article
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Thermodynamic Analysis of Stirling Engine and its Performance Challenges: A Review
Abstract: In present scenario the efficient use of energy and environmental safety subjected to prior importance in energy sector from creating work from fuels. A good source of energy having low cost alternative should be needed. The Stirling engine engross the interest of most of researchers. In 1816 after invention of Stirling engine by Robert Stirling, attracting new interest because of its environmental friendly credentials. The Stirling engine is a significant …
Published in Journal of Automobile Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 28–36 Read article
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Solar Cooling Techniques for Rural Areas: A Detail Review
Abstract: Abstract There is necessity of cooling in rural areas of developing as well as developed countries having a large proportion of people living there, and in these locations, grid electricity is presently unavailable or not reliable, and availability of fuels are also difficult or too expensive. In order to obtain storage of vaccines and lifesaving drugs, food preservation and grain storage, refrigeration systems based on usage of solar energy can …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 1, 2017 · pp. 30–42 Read article
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Design, Calculation and Cost Estimation of HVAC system for School Building
Abstract: In this project work we are going to design the energy efficient HVAC system for a school building. The use of air conditioning systems for residential/office buildings were very minimum in the earlier days of 1980’s. Due to the technology advancement and industrial growth buildings were started construction in a closed area and construction of apartment also increased after 1980’s with increased population. Also, ambient temperatures are changed drastically due …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 2, 2020 · pp. 38–48 Read article
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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
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Thermoelectric Generator Plate-based EV Charging Solutions
Abstract: The International Institute of Refrigeration estimates that air conditioning and refrigeration use 15% of the world's electricity and contribute to the emission of CO2, HCFCs, and other harmful chemicals. Global warming is one of the many negative effects of using such refrigerants on our environment. The efficiency of the car is impacted by the increased fuel consumption for air conditioning. Thermoelectric air conditioning can be utilized to solve the emission …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 3, 2024 · pp. 1–13 Read article
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Comparative Analysis of Vapour Compression Mini Ice Cream Plant by Using Different Size Capillary Tubes
Abstract: Abstract An experimental set up is made for comparative analysis of vapour compression mini ice cream plant by applying different size capillary tubes. The experiments were performed and results were recorded for comparing the best unit. The capillary tube was formed in coil shape having different inner diameters such as 0.79 and 1.12 mm. The pressure at suction and discharge of capillary were recorded to evaluate the cycle COP, power …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 3, 2016 · pp. 30–34 Read article
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Instant Cooling Of Sugar Cane Juice
Abstract: This work has been carried out to bring out the reliable solution for chilling/cooling of sugar cane juice instantly (as less time as possible) after being extracted from sugar cane and considering hygiene. Sugar cane juice is a highly consumed beverage across many countries, mostly in summer seasons due to its nutritional values and refreshing nature while it’s chill. In this work design of the model is done to cool …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 1, 2020 · pp. 1–4 Read article
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Indoor Room Air Conditioning Using External Enclosure
Abstract: This paper presents a new air conditioning system using an external air chamber enclosure. The system is based on evaporative refrigeration technique humidifying hot air from the environment by means of a new design humidifier. Temperature at the air chamber is set up according to the required comfort conditions. The air chamber plays the role of a heat collector from indoor room radiative energy. This new system avoids thermal gradient …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 2, 2020 · pp. 7–21 Read article
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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
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A Study on Quality Changes in Stored Bottle Gourd (Lagenaria siceraria) Juice
Abstract: The present study was designed to evaluate physico-chemical changes in bottle gourd juice during storage. The fresh bottle gourds were procured from the agriculture farm of Haryana Agriculture University, Hisar, India. The bottle gourd juice was extracted and treated with citric acid and potassium metabisulphite. Extracted juice was filled in glass bottles and stored under refrigerated (4–7 °C) and room temperature (27 ± 2 °C) conditions for 15 days. Total …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 4, Issue 1, 2015 · pp. 21–27 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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Exploring Lactic Acid Bacteria in Nasiriyah’s Locally Manufactured Cheese
Abstract: This investigation aimed to identify and diagnose lactic acid bacteria in locally produced cheese. Forty-eight isolates were obtained by categorizing them according to their phenotypic and microscopic features. After conducting biochemical tests, we acquired ten bacterial isolates from the Lactobacillus species. The VITEK 2 instrument was utilized to distinguish the samples to the species level with a threshold for the Lactobacillus genus. In the city of Nasiriyah, visiting the various …
Published in International Journal of Pathogens · Vol. 1, Issue 2, 2024 · pp. 15–23 Read article
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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
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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
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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
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Design and Development of Prototype of Air Cooling System for Truck Cabin using Heat from Engine Exhaust
Abstract: AbstractThe present work, the major spotlight is towards the design and development of a prototype of ai cooling system for the cabin of a truck c using waste heat from exhaust of an engine. From the literature review in the field of automobile air conditioning, it is observed that very less work has been done in the field of cabin cooling of transport trucks, which is crucial. The available options …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 10, Issue 2, 2019 · pp. 18–25 Read article