Search
345 articles for “Pressure”
-
Review on Effect of Exhaust Gas Recirculation (EGR) on Performance of Compression Ignition (CI) Engine and Homogeneous Charge Compression Ignition (HCCI) Engine
Abstract: Energy conservation is a trending topic in the world. But only saving energy is not the primary aim, there is a need for clean and efficient source of energy to reduce the pollution. Compression ignition engine is the preferred prime movers due to excellent drivability and higher thermal efficiency. Even though it has many advantages, it also has major drawbacks as it produces higher level of NOx and smoke emissions …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 11–20 Read article
-
TurbochargedTwo-Stroke SI Engine as Back-up Range Extender for Battery Electric Vehicles
Abstract: Installation studies indicates that a compact single-cylinder two stroke Spark Ignited (SI)-engine with a swept volume of 400-500 cc is small enough to install in the heavy-duty Battery Electric Vehicle (BEV) application considered here. Four-stroke engines of similar power to the two-stroke engine would need additional installation volume because of the larger cylinder heads, bulky oil pans and the need for more cylinders to create the same number of power-pulses …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 1, 2021 · pp. 31–57 Read article
-
Study of Thermal Stresses on Cast Iron and Aluminum Alloy V8 Cylinder Blocks for A Four Stroke CI Engine Without any Application of Cooling Systems
Abstract: The purpose of this paper is to investigate the thermal stresses experienced by a V8 cylinder block of a four stroke CI engine at a specific point in time during the engine's operation. Two case studies were performed for the cylinder block with different materials. Aluminum A356 T6 and Iron Cast are the materials used in these case studies for the cylinder block. Pressures and temperatures were applied only to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 2, 2021 · pp. 6–19 Read article
-
A Review on working of Gas turbine Operation
Abstract: The basic operation of a gas turbine is a Brayton cycle with air as the working fluid. Atmospheric air flows through the compressor, increasing its pressure. Energy would then be tried to introduce by spraying fuel into the air and igniting it to build a high temperature flow. This superheated steam gas enters a turbine, producing shaft work output in the process. The unutilized energy can be generated in the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 1, 2022 · pp. 34–37 Read article
-
STUDY DIESEL-RK APPLICATIONS IN THE COMPUTATION AND ANALYSIS OF TECHNOLOGICAL AND SOCIOECONOMIC CHARACTERISTICS OF DIESEL ENGINES USING HEAVY FUELS IN ORDER TO TEST WITH DIFFERENT PISTON BOWL DESIGNS
Abstract: The influence of different piston bowls on the Diesel-RK will be demonstrated in this test as the engine is the heart of vehicles for existence like human heart needed for survival. The piston bowl shows a significant influence on the load stratification in the transition area. The compression ratio shows a trade-off of NOx reduction with unburned hydrocarbons and carbon monoxide emissions. In today's society, people have attempted to employ …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 8–18 Read article
-
Performance of Industrial Gas Turbines through Blade Design and Cooling Strategies
Abstract: Industrial gas turbines are steam engines that leverage an ongoing stream of high pressure air togenerate mechanical power. These machines can be used for a variety of industrial applications,including that of the manufacturing of electricity, oil and gas, and the propulsion of ships andplanes. The classification can be made of an industrial gas turbine are a turbine, a combustionchamber, and a compressor. Incoming air is compressed by the compressor to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 36–40 Read article
-
Heat Transfer Performance in an Internally Dimpled Tube Heat Exchanger Composed of Various Materials Examined Using CFD: A Review
Abstract: A review of the most important findings for thermal enhancement on circular pipe is presented, the focus is on the heat transfer and thermal gradient in these heat exchangers. The use of circular dimpled pipes, surfaces, and other techniques to promote heat transmission has been the subject of several studies in the past. Reviews are conducted on a sizable number of research papers pertaining to computational and experimental investigations. Various …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 2, 2023 · pp. 30–40 Read article
-
Improving Internal Combustion Engine Performance by Using Reduced Power Air Conditioning System
Abstract: The paper studies and analyzes the effects of adsorption air conditioning system instead of the classical compression unit on the vehicle internal combustion engine (ICE) performance. The adsorption system uses the residual heat from the ICE cooling circuit to create the necessary thermodynamic conditions to reduce the temperature in the vehicle cockpit. The proposed system has the advantage of no mobile parts for operating since it works on pressure difference …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 2, 2023 · pp. 41–51 Read article
-
3D Stress State Dependent Failure Model for Fracture Simulations
Abstract: The state of stress is defined by triaxiality (hydrostatic pressure) and the lode angle parameter (deviatoric stress third invariant). The stress state not only varies with different kinds of loading but also with the location of the stress concentration, geometry of specimen and deformation. The LS-DYNA implementation of a strain-based, stress state dependent failure criterion for a ductile material is investigated through simulations of standard experiments in this paper. A …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 44–65 Read article
-
Finite Element Modelling and Structural 3d Static of the Mechanical Behavior of Dry Contacts Slipping Between the Disc and the Brake Pads
Abstract: The aim of this contribution is to present a study based on the determination of the structural deformations due to the contact of slipping between the disc and the pads. The results of contact described in this work relate to displacements, Von Mises stress and contact pressures of the pad at various moments of simulation. One precedes then the influence of some parameters on the computation results such as rotation …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 23–43 Read article
-
Study of Analysis, Design and Performance of Fin
Abstract: This paper discusses the use of extended surface heat transfer in heat exchangers. The size and cost of an exchanger is dependent upon the heat duty, the allowable pressure drop, and the geometry of the heat transfer area. The dominance of this resistance is often broken by the use of extended surfaces (fins), which will result in a lower area and hence smaller exchanger. This paper will consider which, if …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 23–28 Read article
-
Modeling, Analysis and Vibrational Behaviour of A Steam Turbine Blade
Abstract: In this research work, the 2nd LP stage of 250MW steam turbine that having 102 blades is considered and blade geometry for various cross-sections had developed with inputs given as co-ordinates which is from blade root to tip of the portion by using UNIGRAPHICS. In order to achieve its desired performance for a steam turbine blade, the blade material has to withstand ambient conditions such as loading, temperatures, pressures and, …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 1, 2020 · pp. 27–45 Read article
-
Mechanical Characterization using Finite Element Analysis of Jute and E-Glass Fabric Reinforced Epoxy Composite Materials
Abstract: Recently, there has been a greater inclination towards natural fiber reinforced plastics composites (NFRPC) because these are environmentally friendly and cost-effective to synthetic fiber reinforced composites. The availability of natural fibers and ease of manufacturing have tempted researchers worldwide to try locally available inexpensive fibers and to study their feasibility of reinforcement purposes and to what extent they satisfy the required specifications of good reinforced polymer composite for tribological applications. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 21–39 Read article
-
Enhancing the Performance of Vertical Cryogenic Insulated Cylinders: A Study on Neck Tube Thermal Stress using ANSYS Software
Abstract: An essential supporting component of cryogenic insulated cylinders is the neck tube. The root of the neck tube, which serves as a crucial support structure between the inner and outer vessels in cryogenic insulated cylinders, turns out to be the weakest link due to a hole in the inner upper end for joining. This paper's major goal is to offer research on thermal stress analysis and the optimal construction of …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 9, Issue 1, 2023 · pp. 37–49 Read article
-
“Sternotomy” and the Factors Affecting Its Prognosis
Abstract: Cardiac surgeries predominantly require median sternotomy, as it is a useful incision, which is required to be done, for different operations. This incision is useful in performing thoracic operations as it also allows access to both pleural spaces. Patients and medical variables increase the rate of infection of this surgical wound. Complication of sternal wound infection and durability of chest pain associated to sternotomy is lasting more than 1 year …
Published in International Journal of Cardiovascular Nursing · Vol. 1, Issue 2, 2015 · pp. 1–3 Read article
-
Lifestyle Diseases Swallows India
Abstract: Communicable diseases like malaria, cholera and polio have become manageable due to recent advancements in medicines. Now a new breed of diseases called’ lifestyle diseases’ has developed. Globally 14.2 million people between the 30-69 years of ages die prematurely every year from these diseases. These diseases have emerged as bigger killers than infectious or hereditary ones. Tobacco use, unhealthy diets and physical inactivity are the risk factors for these diseases. …
Published in International Journal of Cardiovascular Nursing · Vol. 2, Issue 2, 2016 · pp. 27 Read article
-
Effectiveness of Selected Nursing Interventions on Physical and Functional Abilities among Stroke Patients
Abstract: Background: In health care setting, Stroke is the second leading cause of preventable death and fourth leading cause of disability. Rehabilitation is concerned with improvement in physical and functional abilities of patients after stroke. Aim: The present study aims to assess the effectiveness of selected nursing interventions on the physical and functional abilities among stroke patients admitted in Guru Gobind Singh Medical College and Hospital. Materials and Methods: Pre-experimental one …
Published in International Journal of Cardiovascular Nursing · Vol. 5, Issue 1, 2019 · pp. 14–22 Read article
-
Effects of Mindfulness Meditation Therapy on Stress and Emotional Intelligence in Selected Nursing Colleges in Punjab among Nursing Students
Abstract: Nursing students experience stress throughout their professional careers due to a variety of pressures, which can cause psychological anguish, health issues, and behavioural issues, all of which contribute to subpar academic performance. Students studying nursing are important human resources. It is essential to identify stress in nursing students since stress can result in decreased productivity, decreased quality of life, and suicidal thoughts. Emotional intelligence (EI) is defined as the capacity …
Published in International Journal of Cardiovascular Nursing · Vol. 8, Issue 2, 2022 · pp. 33–40 Read article
-
Advancements in Understanding and Managing Myocardial Infarction: A Comprehensive Review
Abstract: A myocardial infarction, often known as a heart attack, is a severe health issue characterized by a sudden reduction in blood flow to a part of the heart muscle, leading to the impairment or demise of cardiac cells. This occurs when the coronary arteries, responsible for delivering oxygenated blood to the heart, become blocked, typically due to the formation of a clot within them. The clinical manifestation of a myocardial …
Published in International Journal of Cardiovascular Nursing · Vol. 9, Issue 2, 2023 · pp. 25–30 Read article
-
A Descriptive Study to Find Out Risk Factors of Hypertension Among Hypertensive Patients those Attending Medicine OPD in PGIMS, Rohtak
Abstract: Background: As per the World Health Organization (WHO), approximately 1.13 billion individuals globally suffer from hypertension, with the majority, around two-thirds, residing in low-and middle-income nations. Globally, elevated blood pressure is linked to an estimated 7.5 million fatalities, constituting about 12.8% of the total number of deaths. This equates to 57 million disability-adjusted life years (DALYs) or 3.7% of the total DALYs. Objectives: Determining the linked risk elements for hypertension. …
Published in International Journal of Cardiovascular Nursing · Vol. 9, Issue 2, 2023 · pp. 31–71 Read article