In contrast to pulsed high-pressure sodium-vapor lamps, a pulsed operation of metal-halide lamps usually does not improve the spectral distribution of radiation. In sodium lamps, the spectrum is dominated by resonance lines, and a pulsed operation leads to a redistribution of population densities with increased excitation of …

Being one of the most fast developing and promising technologies for food safety and quality, high pressure processing (HPP) also named as high hydrostatic …

First Online: 04 July 2023. pp 193–221. Cite this chapter. Download book PDF. Download book EPUB. Product, Process and Plant Design Using Subcritical and Supercritical …

a second operation, which contributes to the speedy recovery of the patient. For a long time, the main candidates for the role of materials for the creation of metal biodegradable ... shown that high-pressure torsion (HPT) leads to significant strengthening of pure Zn [22], Zn-0.5%Cu [23] and Zn-0.8%Ag [24] alloys. It was shown in [25] that ...

The relationship between the operating parameters such as capacity, operating pressure, roll gap, flake thickness and their effects on HPGR performance is discussed in this section. Particle size distributions of the products of all tests are given in Fig. 2. As seen that, the product of the HPGR became finer as the recycling load increased.

High-pressure processing is a batch operation. Typically, the product is packaged in a flexible container (a pouch or plastic bottle), and is then loaded into a sample basket. The sample basket is then loaded inside a high-pressure chamber filled with a pressure-transmitting fluid such as water. The pressure-transmitting fluid in the chamber is ...

2 Membrane Challenges: High Pressure Operation Mechanical h Efficiency ical y Membrane creep Loss of Stack Seals Membrane extrusion into fluid ports Hardware leakage (internal & external) There is a need to improved strength without adversely impacting conductivity Membrane degradation increases with operating pressure …

Because of this ambiguity and based on interactions with various industries, it is the author's opinion that a high-pressure line typically operates in the vicinity of 1400–2200 psi. A …

The measure of throttling extraction steam of high-pressure heaters is the most potential option for improving operational flexibility, with maximum value of the maximal output power increment and ...

The high pressure hollow fibers membrane (HFM) modules were critically evaluated for the intended ultimate application in natural gas sweetening process. The developed modules based on PFA hollow fibers showed excellent operational stability under the conditions of high feed gas pressure and absorption liquid temperature over …

This CO2 compressor was equipped with a number of advanced design feature including 3-D high efficiency impellers, overhung dampers, swirl cancellers, etc. The 3rd generation kicked off in 2000, with a phased program to develop a compressor ultimately targeted to achieve a discharge pressure rating of 700 bar.

A high-temperature alkaline electrolysis cell resistant to chemical attack from the highly corrosive electrolyte solution and capable of high-pressure operation was designed and tested. The cell was constructed with a Monel ® alloy housing and cathode, while various anode materials were compared. The anode materials tested included …

The high-pressure operation allows the hydrogen to be delivered and used at high pressure and minimizes the extra cost of pressurization. These are the reasons that PEM electrolyzers are the …

Herein, we introduce new insights about the 3D design of HPTs (high-pressure turbines) and 3D numerical evolution of aerothermodynamic parameters for multi-row turbines (stator–rotor) as functions of operational parameters in takeoff and cruise of CFM-56 engines, which are widely used in airliners, examples being the Boeing 737 and …

A high-pressure smooth bore tip operation creates a higher velocity stream, which in turn develops a farther reaching, harder hitting stream. This application works well in a windy situation ...

Operational managers regularly encounter high-pressure scenarios that test their resilience, patience, and stress management abilities. They grapple with the complexities of meeting tight...

This study focuses on the safety of high-pressure heaters at operational flexibility measures. The dynamic characteristics of thermal parameters in the 1# HP heater were obtained and analyzed based on transient models of a coal-fired power plant. The change trends of pressure/temperature on the steam/feedwater side of the 1# HP heater …

An Alternative Chemistry for Both Operational and Layup Protection of High-Pressure Steam Water Cycles PPC hem chemistry. All drum units in the sys - tem have a mixed metallurgy feed - water heater system and no con - densate polishing. The cycle guidelines are listed in Table 1 . These operating parameters have served the system well. The peri-

DOI: 10.1016/S0360-3199(97)00139-0 Corpus ID: 97243712; Operational characteristics of high-pressure, high-efficiency water-hydrogen-electrolysis @article ...

Operation at this pressure still avoids the first compression steps, which are the most capital intensive. Therefore, these operating conditions are significantly more attractive than operating at atmospheric pressure. The third system is a high-temperature (80–100 °C) low-pressure system with a thin diaphragm and combined circuits.

High-pressure electrolysis (also called high-pressure electrolysis HPE) is the water electrolysis performed at pressures higher than ambient in which electrical energy is the driving force of the water decomposition to produce oxygen (O 2) and hydrogen (H 2).The core of an electrolysis unit is an electrochemical cell, which is filled with pure …

The high-pressure safety gloves provide protection and flexibility to enable the worker to complete the task without constraints on his natural dexterity. They're …

Operational characteristics of high-pressure, high-efficiency water-hydrogen-electrolysis - ScienceDirect. International Journal of Hydrogen Energy. …

Gases can be generated at high pressure for direct storage in pressurised vessels without incurring substantial additional costs. However, high-pressure …

Plasma reactor coupling efficiencies (η) > 90% are achieved over the entire 100–260 Torr pressure range and 1.5–2.4 kW input power diamond synthesis regime. When operating at a specific experimental operating condition, small additional internal tuning adjustments can be made to achieve η > 98%.

A gas crossover model has been developed, which shows that crossover is mainly driven by diffusive transport of hydrogen, caused by a high local supersaturation at the diaphragm surface. To enable a low minimum load of 10% the operating pressure should be kept below 8 bara.

Hypertension, also known as high or raised blood pressure, is a condition in which the blood vessels have persistently raised pressure. Blood is carried from the heart to all parts of the body in the vessels. Each time the heart beats, it pumps blood into the vessels. Blood pressure is created by the force of blood pushing against the walls of ...

The effect of high-pressure torsion (HPT) on the microstructure, phase composition, mechanical characteristics, degradation rate, and bioactive properties of the Zn–1%Mg alloy is studied.

Abstract. The Buffalo Field air injection units, located in northwest South Dakota, are the oldest High-Pressure Air Injection (HPAI) projects currently in operation.In mid 1977, realizing the rapid production decline under primary recovery, the operator initiated an IOR program including laboratory tests, feasibility studies, and a pilot air …