Abstract Linear compressors are advantageous in terms of miniaturization, high efficiency, and continuous operation without a crank mechanism. The drop-in replacement for R134a domestic refrigerators is R1234yf. This study aims to investigate the linear compressor thermodynamic performance vapour compression system with R1234yf by modelling measuring key parameters such as pressure-volume (P-V)...

We present a nonlinear lossless compressor designed for multispectral images consisting of few bands, and having greater spatial than spectral correlation. Our compressor is based on an 2D integer wavelet transform that reduces spatial correlation. Different models for statistical dependencies of wavelet detail coefficients are analyzed and tested to perform linear inter/intraband predictions. ...

A fully explicit two-dimensional flow solver, based on a four-stage Runge-Kutta scheme, has been developed and utilized to predict two-dimensional viscous flow through turbomachinery cascades for which experimental data is available. The formulation is applied to the density averaged Navier-Stokes equations. Several features of the technique improve the ability of the code to predict high Reyno...

Dynamic range compression, despite being one of the most widely used audio effects, is still poorly understood, and there is little formal knowledge and analysis of compressor design techniques. In this tutorial we describe several different approaches to digital dynamic range compressor design. Digital implementations of several classic analog approaches are given, as well as designs from rece...