Results 11 to 20 of about 79,452 (304)
The objective of this study is to investigate the performance characteristics of a small-sized R600a household refrigeration system that adopts a condenser outlet split (COS) ejector cycle under various operating and ejector geometry conditions.
Yongseok Jeon +3 more
doaj +1 more source
Ejectors have been widely used in multi-effect distillation, thermal vapor compression (MED-TVC) desalination systems due to their simple structures and low energy consumption.
Jianbo Ren +5 more
doaj +1 more source
The Relationship between Flux Coefficient and Entrainment Ratio in Density Currents [PDF]
Abstract The authors explore the theoretical and empirical relationship between the nonlocal quantities of the entrainment ratio E, the appropriately depth- and time-averaged flux coefficient Γ, and the bulk Froude number Fro in density currents.
Wells, Mathew +2 more
openaire +2 more sources
Ejector-based refrigeration systems can make direct use of many forms of thermal energy, such as solar thermal, waste heat, biogas, or natural gas. The present paper describes the estimation of the thermal coefficient of performance (COP) of a binary ...
Mouhammad El Hassan
doaj +1 more source
MEASUREMENT OF ENTRAINMENT RATIO DURING HIGH FREQUENCY JET VENTILATION
We have measured tidal (VT), entrained (Ve) and "blowback" (Vbb) volumes during high frequency jet ventilation (HFJV) through a Mallinckrodt Hi-Lo Jet tracheal tube in anaesthetized patients. The above volumes were calculated by digital integration of the appropriate regions of flow curves derived from a pneumotachograph placed between the bias flow ...
M J, Jones +3 more
openaire +2 more sources
Mathematical Modelling of the Entrainment Ratio of High Performance Supersonic Industrial Ejectors [PDF]
For many years now, manufacturers have been producing supersonic ejectors with a high entrainment ratio for the chemical, oil, and food industries. In the present work, mathematical modelling of the entrainment ratio of such industrial ejectors is carried out, in which a variation of the diffuser efficiency is also assumed to be a function of the Mach ...
openaire +1 more source
When injectors are used in petroleum industries or sea water desalination system, it is a special case that the induced gas is accompanied by water, the ejector is in two-phase operation. In the present study, the ejector performance at two phase flow is
WeiXiong Chen +5 more
doaj +1 more source
Triple-Nozzle Thermo-Compressor: Geometrical Investigation and Comparison with Single-Nozzle Thermo-Compressor [PDF]
Primary nozzle is one of the most important factors which has a large influence on the performance of thermo-compressors. Most of studies carried out until now, have been performed on single-nozzle thermo-compressors.
S. Asgarnejad +2 more
doaj +1 more source
Entrainment of noise-induced and limit cycle oscillators under weak noise [PDF]
Theoretical models that describe oscillations in biological systems are often either a limit cycle oscillator, where the deterministic nonlinear dynamics gives sustained periodic oscillations, or a noise-induced oscillator, where a fixed point is ...
Alon, Uri +2 more
core +1 more source
Analysis of Entrainment Ratio about Solar Ejector Refrigerant System
AbstractBased on the VB program, establish a simulation program about the solar ejector system performance. The characteristic of entrainment ratio has been analyzed when the HFC134a, R290 and R718 are adopted as working fluid respectively. It is found that the entrainment ratio of R290 is the biggest over the range of operating conditions, and the ...
Zheng, HuiFan +2 more
openaire +1 more source

