impact of pulsed electric field and high voltage

Electrical field simulation of 3 phase high voltage

The AC Electric solver computes the electric fields excited by a Sinusoidal (or alternating) varying voltage or a Sinusoidal (or alternating) varying current Load restraint Every core in the three-phase cable comprising phases 1 2 and 3 has 120 phase shift from each other

Pulsed electric field: groundbreaking technology for

Pulsed electric fields: fundamentals and key aspects PEF-assisted extraction essentially involves the discharge of direct current electric pulses of short duration (s-ms) and high voltage (up to 50 kV) into a soft plant material located between at least one high-voltage electrode and one ground electrode (Purtolas et al 2016)

Electromagnetic Fields and PEMF for Heart Conditions

Apr 03 2012Changes in heart rhythm may be affected in the workers professionally exposed to 50-Hz electric and magnetic fields (EMF) over long periods There can be a global decrease of cardiac rhythm in both high (over the industry norm) and low (at or below industry norms) professionally EMF-exposed groups compared to the non EMF-exposed control group

Experimental validation on effects of pulsed electric

rectangular high voltage pulse is captured by Tektronix High voltage probe model number P6015 and current pulse by a Pearson current monitor model number 101 Treatment with pulse electric field The juices that are extracted from raw samples were given PEF treatment which is shown in Figure 2 A sample of about 20

Pulsed Electric Fields for Food Processing Technology

Dec 13 2011Scheme of a pulsed electric field system for food processing The high intensity pulsed electric field processing system is a simple electrical system consisting of a high voltage source capacitor bank switch and treatment chamber Generation of pulsed electric fields requires a fast discharge of electrical energy within a short period of time

Study on High

When the microorganism is set in the high-voltage pulsed electric fields and the electric-field intensity achieved a certain value (model is 20-100 kV/cm) the cell membrane can be destroyed thus causes the cell content divulge and bring death to the cell[8 9] From the TEM observation we can see that after PEF processing the cell walls of

Inactivation System Using Silver Electrode by High Voltage

The inactivation of Escherichia coli K-12 was investigated in a system using a pulsed electric field (PEF) and a spiral silver wire electrode The survival ratios of E coli K-12 decreased with increasing voltage The sterilization effect was greater with a high-voltage silver wire electrode than with a stainless steel electrode This result was attributed to the enhancement of PEF

FAQ about pulsed electric field processing

Pulsed electric field (PEF) processing is an efficient non-thermal food processing technique using short high voltage pulses These pulses induce poration of plant animal and microbial cells leading to cell disintegration and microbial inactivation

HIGH VOLTAGE PULSED ELECTRICAL FIELD FOR LIQUID FOOD

A novel technique to pasteurize liquid foods using high voltage electric pulses is reviewed The process has been reviewed by various researchers and recently great interest has been shown by researchers and the food industry in North America Japan and Europe This paper provides a review of the process in terms of equipment development modeling and experimental results

UDC 631 9 EFFECT OF FREQUENCY AND DURATION OF

Areca catechu pulsed electric field yield quality tannins IR spectra Indonesia is agrarian country that has considerable plantation potential One of the plantations that have benefits for treatment is the areca palm Areca palm (Areca catechu) contains pharmacological activities which include antiparasitic antioxidant antibacterial

Electromagnetic Pulse (EMP)

Mar 30 2019Our magnetosphere protects us from most solar radiation and EMP effects A larger solar flare can get through the magnetosphere and impact the earths surface A very large extended Solar Flare EMP could destroy some or all of the high voltage backbone transformers These transformers are critical to the U S electric grid

1793

The use of high voltage pulse generator for juice processing with pulse electric field (PEF) PEF represent a new non-thermal technology for preserving liquid food product such as fruit juice [27] The process involves the application of short pulse of high voltage electric field to foods flowing through or placed between two electrodes

The Effect of High Voltage High Frequency Pulsed Electric

a high voltage high frequency pulsed electric field for 66 h During this period PP‑exposed samples keep moist seeping the saline slowly using syringe with small needle Specimens from the control group were placed in similar environmental condition as the PP-exposed group but they were not exposed to the pulse power field to consider

Intra

High voltage pulsed electric fields (PEF) treatment is one of the more promising nonthermal technologies to fully or partially replace thermal processing The objective of this research was to investigate the microbial inactivation mechanisms of PEF treatment in terms of intra- and extracellular changes in the cells

Impact of pulsed electric fields and high voltage

Nov 01 2014Pulsed electric energy (pulsed electric fields PEF and high voltage electrical discharges HVED) can be useful technologies for the valorization of food wastes and by-products Recent scientific and practical efforts have shown full correspondence of pulsed electric fields (PEF) techniques with green extraction concept (Vorobiev Lebovka 2010)

High

bacteria the activity of which can be controlled by an intense electric field Keywords: plasma high-voltage agriculture food processing pulsed power pulse electric field (Some figures may appear in colour only in the online journal) High-voltage technologies for agriculture and food processing Topical Review IOP 2019 1361-6463

Impact of pulsed electric fields and high voltage

Extraction of the nutritionally valuable and antioxidant compounds from papaya peels using conventional aqueous extraction (E) (at 20 C 50 C and 60 C) and extraction assisted by pulsed electric field (PEF) or by high voltage electrical discharges (HVED) was studied

Enhancing Industrial Processes by Pulsed Electric Fields

Pulsed Electric Field processing was developed over 20 years ago as a non-thermal alternative to pasteurization In PEF processing a liquid food or other pumpable product is passed through a small treatment chamber where it is subjected to a short (10 nanosecond – 20 microsecond) pulse of very high voltage The high voltage

Nanosecond high

Nanosecond Pulsed Electric Fields (nsPEF) Induce Direct Electric Field Effects and Biological Effects on Human Colon Carcinoma Cells DNA and Cell Biology Vol 24 No 5 Simulations of transient membrane behavior in cells subjected to a high-intensity ultrashort electric pulse

KIT

The scientific focus in Bioelectrics is the interaction of pulsed electric fields (PEF) with biological cells and tissue In general for PEF exposure the biological material is suspended in aqueous solution between two electrodes which are connected to a high voltage pulse generator

High Voltage Pulse Modulator

Originally used in the medtech sector Pulsed Electric Field (PEF) is now breaking new grounds in the food industry PEF is a method for processing cells by means of brief pulses of a strong electric field ScandiNova's high voltage pulse modulators are making this method possible

High Intensity Pulsed Electric Field Procesiing of Foods

(applying the electric field in the same direction as the fluid flow) (Sampedro et al 2013) making it possible to apply an uniform electric field and to scale-up to higher throughput for pilot-plant studies (400–2000 L/h) (Min et al 2003b) The application of pulsed electric fields at high

Enhancing Industrial Processes by Pulsed Electric Fields

Pulsed Electric Field processing was developed over 20 years ago as a non-thermal alternative to pasteurization In PEF processing a liquid food or other pumpable product is passed through a small treatment chamber where it is subjected to a short (10 nanosecond – 20 microsecond) pulse of very high voltage The high voltage

High Voltage Pulsed Electric Field Generator

The Pulsed Electric Field Generator comprises of: • High Voltage pulse transformer • Programmable Pulse-maker • Solid state switching circuit • Control system based on ARM micro-controller The pulse level pulse width number of pulses interval cycles are to be fed by the operator in the control system