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222 articles for “controlled pressurization”
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Enhancing Energy Efficiency in HVAC Systems: A Comprehensive Study of EC+ Fans, VFDs, and AI Integration
Abstract: This research paper explores the integration of EC+ fans with Variable Frequency Drives (VFDs) and Permanent Magnet (PM) motors to enhance energy efficiency and operational performance in heating, ventilation, and air conditioning (HVAC) systems. An extensive energy audit was conducted at the BidP plant in Bangalore, focusing on air handling units (AHUs) in Hangar 101. The audit revealed substantial variations in fan efficiency, secondary fan performance, power consumption, and airflow …
Published in Trends in Machine design · Vol. 11, Issue 3, 2024 · pp. 44–54 Read article
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Model Optimisation of Waterflood and Low Salinity Brine Injection to Enhance Gas Condensate Recovery – A Case Study of A Rich Gas Condensate Sandstone Reservoir in The Offshore Tano Basin of Ghana
Abstract: To enhance production of entrapped condensate in gas-condensate reservoirs without delay in produced gas sales, this study looked at the impact of waterflood and low saline brine injection on an offshore gascondensate reservoir in the Tano Basin, Ghana, West-Africa. The injector well placements, rate, and pressure were optimised using three optimisers (Differential Evolution, Particle Swarm Optimisation, Design Exploration and Controlled Evolution). Condensate and gas recovery increased by 30.3% (from 19.1% …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 20–31 Read article
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Design and Analysis of MEMS based Piezoelectric Accelerometer Having Square Shaped Proof Mass
Abstract: In any spacecraft launching program, the most prominent issue is to locate the spacecraft or satellite, in particular orbit of any particular planet. Now, while making the position of that spacecraft in space, abrupt changes in velocity occur and these velocity changes can break the controlling circuitry of the system since the velocity changes occur at very high environmental pressure. The designed device converts the deflections due to mentioned pressure …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 72–78 Read article
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Experimental Analysis of the Effect of Fine Milled Husk of Rice as a Novel Filtration Control Agent for Water Based Drilling Fluid System
Abstract: Drilling operation is a complex process that requires integration of various engineering systems. As the drilling continues, the formation encountered offers challenges to wellbore integrity as pressure increases with depth. The influx of formation fluid is contained by the overbalance provided by weighted drilling fluid column. Another critical function of the mud is to restrict the filtration fluid lost to the formation by forming a suitable mud-cake around the wellbore. …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 4–8 Read article
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Wireless Wrist Pulse Monitor Design
Abstract: Wrist pulse has been used for diagnosis of disease in Ayurveda and traditional Chinese medical system. But this diagnosis is subjective to the experience and sense of the medical practitioner as same pulse may be interpreted in different way by different person. In order to make this diagnosis objective rather than subjective, digitization of wrist pulse is needed. Many platforms have been developed for acquiring the wrist pulse; however, they …
Published in Journal of Microcontroller Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 27–34 Read article
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Design and Fabrication of Automatic Pesticides Sprayer
Abstract: Farming is the heart of Indian culture .Agriculture sector largest Employment providing sector. The farmers comes under different levels according to their economic condition like small marginal medium and rich farmers. In large scale rural area farmers using manually operated instrument instead of new techniques. In addition to that spraying pesticides is also preliminary action taken by farmers to protect crop from insect diseases fungi and pests. Number of technologies …
Published in Journal of Production Research & Management · Vol. 10, Issue 2, 2020 · pp. 3–5 Read article
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Optimizing Plasma Cutting Parameters for Thin Mild Steel Sheets of Various Thicknesses
Abstract: Plasma machining was investigated for suitability to cut thin sheets and the quality obtained was assessed. The main objective of this investigation is to machine or cut required Mild steel sheet thicknesses and to determine the surface roughness and MRR values. Traditional cutting techniques have been discovered to be costly in terms of both time and resources. This study may be valuable to car converters, such as firms that make …
Published in International Journal of Electro-Mechanics and Material Behaviour · Vol. 1, Issue 1, 2023 · pp. 23–28 Read article
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Metabolic Syndrome in Psoriatic Patients: A Cross-Sectional Study
Abstract: Background: Psoriasis is a chronic immuno-inflammatory disease affecting the skin and joints. Studies have demonstrated an increased prevalence of conventional cardiovascular risk factors such as diabetes mellitus, hypertension, and metabolic syndrome in these patients. The aim of this study was to determine the association between psoriasis and metabolic syndrome. Material and Method: An observational cross-sectional study was carried out between November 2023 and October 2024, including participants with and without …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 15, Issue 1, 2026 · pp. 17–23 Read article
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Yoga Practice for the Prevention and Management of Diabetes Mellitus: A Systematic Review
Abstract: Yoga is an ancient art or science, beneficial for the development of body, mind and spirit. Diabetes represents a spectrum of metabolic disorders, which has become a major health challenge worldwide. Various ancient books mentioned the usefulness of Yoga in the prevention and management of certain diseases. Now, it has become the subject of modern scientific evaluation of this ancient evidence. The present study was planned to review the published …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 7, Issue 1, 2017 · pp. 31–35 Read article
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Prevalence of Risk-Factors of Non-Communicable Diseases among Rural Adults
Abstract: Non-communicable diseases are the leading cause of death in the world, as well as in India. India is facing a growing burden of non-communicable diseases. NCDs accounts for 53% of deaths in India in 2008. The four main types of non-communicable diseases are cardiovascular diseases (like heart attacks and stroke), cancers, chronic respiratory diseases (such as chronic obstructed pulmonary disease and asthma) and diabetes. The important risk factors identified for …
Published in Journal of Nursing Science & Practice · Vol. 6, Issue 1, 2016 · pp. 43–48 Read article
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Analysis of Flow through Main Engine Control Unit (MECU) of a New Aircraft Fuel Control System under Various Aircraft Acceleration
Abstract: A fuel control system is being designed and developed for a new aero engine of afighter aircraft. But existing facility doesn’t support the full operational testing of theindividual components of aircraft fuel control system under various aircraft accelerationconditions.In this paper theoretical analysis has been done to check the flow distribution ofone of the basic systems i.e. Main Engine Control Unit (MECU) under various aircraftaccelerations. It has been observed that, in …
Published in Recent Trends in Fluid Mechanics · Vol. 1, Issue 2, 2014 · pp. 1–12 Read article
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Design and Energy Analysis of Butyl Acetate Plant using Aspen HYSYS and Aspen Energy Analyzer
Abstract: This paper discusses the design of Butyl acetate production process by using Aspen Hysys. Heat integration is performed for the entire designed plant using Aspen Energy Analyzer. The proposed design consists of a mixer, continuous stirred tank reactor and two distillation columns. Methyl acetate reacts with butyl alcohol and gives the butyl acetate, methanol. The paper is divided in to three parts. In the first part, the entire process plant …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 2, 2014 · pp. 15–26 Read article
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Experimental Investigations on the Effects of Channel Aspect Ratio and Surface Wettability to Control the Surface-Driven Capillary Flow of Water in Straight PMMA Microchannels
Abstract: AbstractTotal 214 individual straight polymethylmethacrylate (PMMA) microchannels have been fabricated by the maskless lithography, hot embossing lithography, direct bonding technique, and atmospheric pressure air dielectric barrier discharge (DBD) plasma processing. The experimental investigations on the effects of structural properties (channel aspect ratios) and physical properties (surface wettability, capillary pressure and kinetic energy) on the surface-driven capillary flow of dyed water in straight PMMA microchannels is a novel approach in this …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 3, 2016 · pp. 1–12 Read article
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Physical Real-time Model of Diesel Particulate Filter using Second-order Perturbation Method
Abstract: This paper presents the analytical solution of a steady incompressibleviscous fluid flow through a square channelwith circular pores on the wall through which small outwardnormal suction is imposed. The outlet end of the channelis plugged off so that the entire flow is forced through theporous walls. Removal of this plugged end boundary conditionmakes it Berman’s solution [2]. This report has reducedthe Navier-Stokes equations applicable to this particularflow scenario to sets …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 29–34 Read article
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Kick Tolerance Modeling in Well Design and Drilling: A Comprehensive Technical Review
Abstract: Kick and blowout events in drilling operations can lead to significant losses of equipment, and in some cases, human lives. Oil and gas companies, along with oilfield service providers involved in drilling operations, face severe penalties and sanctions following such incidents. Research has demonstrated that incorporating kick tolerance models during the well planning and drilling stages can mitigate the risk of blowouts during secondary well control operations. This study reviews …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 33–58 Read article
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Investigation to Enhance Performance of Finned U-Tube Shell-and-Tube Heat Exchangers Using Epoxy Based Polymer Composite Material
Abstract: Shell-and-tube heat exchangers remain indispensable in thermal engineering systems; however, conventional metallic configurations often face challenges related to corrosion, weight, and limited thermal optimization. In this study, a novel approach is proposed by integrating epoxy-based polymer composite materials with finned U-tube geometries to enhance thermo-hydraulic performance while addressing material limitations of traditional systems. The work focuses on the development and evaluation of a hybrid heat exchanger comprising a mild steel …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 618–633 Read article
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Hand Gesture Detections Using a Force Myography-Based on Wearable Wrist Strap
Abstract: We are familiar with gestures as a nonverbal form of communication and often use it during heated discussions. In this digital word of human-machine interactions, hand gesture is emerged as promising method of interaction. For this interactions, developing a control system for sensing hand gestures would be a primary objective. In this research paper we will be discussing one of such simple yet efficient hand grip and gesture detection method …
Published in Current Trends in Signal Processing · Vol. 11, Issue 2, 2021 · pp. 1–9 Read article
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Carica papaya Linn.: A review on Nutritional and Medicinal Value of Papaya
Abstract: Papaya (Carica papaya Linn.) is a popular fruit tree in the tropical part of the world. It is a delicious, sweet fruit with a pleasant aroma. The papaya is consumed worldwide as a fresh fruit and vegetable. which is healthy for humans because all parts of the plant, including fruit, stem, bark, peel, fruit, seeds, and pulp, have medicinal properties. Papaya also has nutritional value and is also used as …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 12, Issue 1, 2025 · pp. 67–75 Read article
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Characteristic study of Block and Bleed Valve in Petrochemicals Industries for the Steam Supply
Abstract: This paper gives the idea of the use of the on/off valves in Petrochemical Industries for the steam supply. The on/off valves are used to block the inlet and the outlet side in the process when the pressure at the outlet is less than the inlet. The pressure switch is used to set identify the pressure drop and when the pressure is less than the set pressure the switch gets …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 27–30 Read article
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Thermodynamic modelling of the effects of high temperatures on brine fluid density
Abstract: Current trends in oil discoveries points to deep water zones characterized by temperatures ranging from 150oC to 350oC which needs good prediction of the fracture pressure and pore pressure hence imperative to continually understand temperature-density relationships of the fluids which are pumped downhole for well control. This paper seeks to propose a new, cost effective and easier method of estimating the reduction in density of brine completion fluid as it …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 26–35 Read article