Search
Filters applied:
Search Results
-
Integrated Optimization of High-Speed Motor Drive and Compressor System: A Case Study
Climate change and decarbonization challenges are forcing the HVAC &R industry to transition to low Global Warming Potential (GWP) and natural...
-
Numerical Investigation of the Effect of Cylinder Head Torque on Gas Leakage in Hermetic Compressors
Today, while creating compressor designs, energy efficiency and every detail related to it are given importance. In this sense, it’s critical to...
-
Experimental Study of Conical Rotary Compressor for High Pressure Ratio Applications
The Conical Rotary Compressor (CRC) is a positive displacement machine characterized by internal meshing, variable pitch, and variable rotor profile....
-
CFD Simulation Motion Analysis of an Orbiting Scroll Bearing Hub
There are major areas that need to be considered when creating a chamber model of a scroll compressor, including the motor and the compression...
-
Sizing of Scroll and Rolling Piston Compressor for Low-Pressure Refrigerants in Residential Air Conditioning and Heat Pump Systems
Current residential air-condition and heat pump (ACHP) systems mainly use the high-pressure refrigerant R410A with scroll or rolling piston type...
-
Two Way Coupling of CFD Conjugate Heat Transfer Simulation with Solid Thermal Expansion in a Twin Screw Compressor
Gas temperature changes due to compression can cause non-uniform thermal expansion in the compressor hardware, potentially impacting both its...
-
Orthogonal Mesh Generation of Screw Compressors for Capturing Tip Leakage Flows
Structured meshes have been the industry standard for CFD simulations of positive displacement rotors for the last few years. There are many players...
-
CFD Analysis of Leakage Flow in Radial Tip Gap of Roots Blower
A Roots Blower is rotary positive displacement machine, commonly used for low pressure applications [3]. However, the gaps between the rotors and the...
-
Measured Reed Valve Dynamics of Diaphragm Pumps with Laser Doppler Vibrometer
Pressure controlled reed valves are widely used in compressor technology to control the in- and outflow of the compression chamber. The valves...
-
Full-Bridge Converter
In the previous chapter, we examined power converters with two controllable power devices, and thereby introduced the concept of coordinated...
-
Testing and Integration of a Hydrogen Fuel Cell in a Hybrid-Electric Propulsion Rig for UAV
A parallel architecture hybrid-electric propulsion system for unmanned aerial vehicles has been proposed based on a hydrogen fuel cell. The system...
-
Evaluation of Architectural Structures in Electric Taxiing Systems
In order to reduce the dependence on fossil fuels, which are limited in our world, and to minimize the emissions caused by the use of these fuels,...
-
1D Modeling of an Onboard Inert Gas Generation System During Flight Conditions
In the event of an attack on aircraft or lightning strikes, there is a risk of fire in fuel tanks. Different methods are used to eliminate the risk...
-
A Perspective on Oscillating Foil Propulsion
In this paper, a brief review is given of the physics of oscillating foil propulsion. It is then shown that the jet flow generated by an oscillating...
-
Removing Kerosene Tax Exemption from Aviation: The Future of Taxation Principles in Europe
Kerosene is used in aircrafts, and it causes damage to the environment. However, there was a tax exemption concerning this fuel within the European...
-
Preliminary Full Configuration Drag Estimation of Fixed-Wing UAV Using Analytical Aerodynamics
This paper presents an estimate of the drag polar of the complete configuration of fixed-wing UAV using equivalent skin friction coefficient accounts...
-
Procedures in Testing the Mechanical Characteristics of Composite Structures and the Possibility of Application to Biodegradable Materials: An Overview
This paper presents the static testing of the composite material’s mechanical characteristics. An overview of the standards is made by which various...
-
Operating eVTOLs in the Emergency Response Service
One of the electric vertical take-off and landing vehicles (eVTOLs) most promising field of application is the medical emergency response service....
-
Energy and Environmental Evaluation on LPG Transition for Piston Engine of the Plane
Sectoral pressures created by the awareness of global warming and climate change have made the control of emissions important in the aviation...
-
Anaerobic Digestion: Addressing the Problem of Food Waste by Converting it into Biogas
In some parts of rural India, biogas production is a crucial energy source. The statistics show that it is equivalent to 5% of total LPG production....