Power loss

This thesis is dedicated to study how the charging behaviours of plug-in hybrid vehicles affect the local distribution network. This study focuses on two issues: the power loss and charging cost optimization. The multi-objective particle swarm optimization technique is applied to achieve the optimal charging schedule, resulting in acceptable additional power loss ratio and charging cost.

89p runthenight07 01-03-2023 6 2   Download

In this article, we propose a two-process coupling subproblem technique for improving the errors that overcome thin shell assumptions. This technique is based on the subproblem method to couple SPs in two-processes. The first scenario is an initial problem solved with coils/stranded inductors together with thin region models. The obtained solutions are then considered as volume sources for the second scenario, including actual volume improvements that scope with the thin shell assumptions.

4p larachdumlanat127 02-01-2021 5 2   Download

In this paper, the effects of the hot-spotted cell on PV module were evaluated. The experimental observation was based on 100 kW PV array composed of 20 PV modules. It was found that an increasing number of hot-spotted solar cells in a PV module would likely increase its output power loss.

7p lucastanguyen 01-06-2020 15 1   Download

The results of simulated transients for three typical PWR accidents are presented: a turbine trip with station blackout, a large break loss of coolant accident and a small break loss of coolant accident. The analyses show that the safety criteria are respected and that the reactor quickly reaches a safe shutdown state without operator action and external power.

10p christabelhuynh 31-05-2020 29 0   Download

The paper covers the results of VVER core reflooding studies in fuel assembly (FA) mockup of 126 fuel rod simulators with axial power peaking. The experiments were performed for two types of flooding. The first type is top flooding of the empty (steamed) FA mockup.

11p christabelhuynh 30-05-2020 34 1   Download

Many industries, such as nuclear power plants, chemical industry, oil and gas industry have dangerous working environments and hazardous conditions for employees. Maintenance, inspection and decommissioning activities in these safety-critical areas mean a serious risk, downtime is a significant financial loss.

5p christabelhuynh 29-05-2020 9 0   Download

In this work, isothermal magnetization and initial dc susceptibility of spheroidal, nearly monodisperse Mn0.7Zn0.3Fe2O4 nanoparticles (typical diameter: 20 nm) prepared by a hydrothermal route have been measured between 10 and 300 K. The high-temperature inverse magnetic susceptibility was always found to follow a linearly temperature dependence. The deviation from the standard superparamagnetic behavior is related to dipolar interaction among nanoparticles.

9p abcxyz123_02 03-03-2020 8 3   Download

The thesis aims to propose the Heuristic method algorithm applied to the problem of power grid restructuring with the objective of reducing power loss in case of having / without distributed power source connecting to the distribution grid. Study the effect of distributed power source when connecting to the distribution grid, affecting the power grid restructuring problem.

27p xacxuoc4321 11-07-2019 23 2   Download

Research targets of the thesis: (i) To thereticallystudy the overall characteristics of MIH and their impacts based on theoretical calculation (ii) To carry out experiments on the influence of alternating magnetic field, particle size and viscosity on specific loss power for CoFe2O4 and MnFe2O4, chosen as representative of respectively high K and low K magnetic nanoparticles; and to compare the experimental behavior with that obtained by theroretical calculations.

23p xacxuoc4321 08-07-2019 54 3   Download

To provide high shunt impendence with low power losses, an 81.25 MHz continuous wave (CW) radio frequency quadrupole (RFQ) accelerator has been designed and machined as parts of the Low Energy Accelerator Facility (LEAF). In this paper, the mechanical structure and the main processing technology of the RFQ cavities are described according to the physical and geometric parameters requirements of the RFQ. The fabrication of the RFQ has been completed and the test results agree well with the design requirements.

5p minhxaminhyeu3 12-06-2019 12 0   Download

The results indicate that the M2 LFR is safe enough under these three transients due to the good inherent safety features of the reactor, without human intervention, the reactor will reach a new steady state under UTOP condition.

9p minhxaminhyeu3 12-06-2019 10 3   Download

Trong bài báo này đề cập đến một phương pháp khác để làm giảm tổn thất đó là phương pháp tái cấu trúc. Phương pháp tái cấu trúc là phương pháp tìm ra một cấu trúc lưới tối ưu để vận hành mạng điện có tổn thất nhỏ nhất. Việc tái cấu trúc bằng phương pháp cổ điển sẽ đòi hỏi rất nhiều thời gian đối với mạng điện có nhiều nút, và không thích hợp cho việc đáp ứng nhanh.

12p dieutringuyen 07-06-2017 48 6   Download

In Design of high density transformers for high frequency high power converters, the abovementioned issues of high-frequency transformers are explored, particularly in regards to high-power converter applications. Loss calculations accommodating resonant operating waveform and Litz wire windings are explored. Leakage inductance modeling for large-number-of-stand Litz wire windings is proposed. The optimal design procedure based on the models is developed.

175p khoaicuto 19-03-2015 51 5   Download

RNA-mediated gene silencing (RNA interference) is a powerful way to knock down gene expression and has revolutionized the fields of cellular and molecular biology. Indeed, the transfection of cultured cells with small interfering RNAs (siRNAs) is currently considered to be the best and easi-est approach to loss-of-function experiments.

16p media19 06-03-2013 44 3   Download

Concept: Generators convert mechanical energy to electric energy. Motors convert electric energy to mechanical energy. The construction of motors and generators are similar. Every generator can operate as a motor and vice versa. The energy or power balance is : Generator: Mechanical power = electric power + losses Motor: Electric Power = Mechanical Power + losses.

77p buisontdtq 04-10-2012 63 9   Download

Mekong Delta rice area's largest with about 3.8 million ha. Of these, winter-spring rice crop was planted 1.5 million hectares, 1.6 million ha of summer-collection, case 3 is 0.5 million ha and 0.25 million ha of winter rice. Rice production in 2008 the entire area is 20.6 million tons in 2009 is estimated at 21 million tons. Supply 90% of the Mekong Delta rice exports contributed greatly to Vietnam in the list of "powers" rice. But this is the loss rate of the highest harvest.

42p xau_la 10-02-2012 69 6   Download

Coma: a state of unconsciousness from which the patient cannot be aroused, even by powerful stimuli. Traumatic brain injuries are the most frequent cause; other causes include severe uncontrolled diabetes mellitus, liver disease, kidney disease, and neurologic conditions Dementia: a general loss of mental abilities, including impairment of memory and often impairments in speech, coordination, ability to understand sensory stimuli, and other mental faculties.

4p truongthiuyen1 09-06-2011 63 4   Download

Diseases of the striated muscle often also involve the cervical part of the esophagus, in addition to affecting the oropharyngeal muscles. Clinical manifestations of the cervical esophageal involvement are usually overshadowed by those of the oropharyngeal dysphagia. Diseases of the smooth-muscle segment involve the thoracic part of the esophagus and the LES. Dysphagia occurs when the peristaltic contractions are weak or absent or when the contractions are nonperistaltic. Loss of peristalsis may be associated with failure of LES relaxation.

5p ongxaemnumber1 29-11-2010 48 2   Download

Spinal Cord (See also Chap. 372) If the spinal cord is transected, all sensation is lost below the level of transection. Bladder and bowel function are also lost, as is motor function. Hemisection of the spinal cord produces the Brown-Séquard syndrome, with absent pain and temperature sensation contralaterally and loss of proprioceptive sensation and power ipsilaterally below the lesion (see Figs. 25-1 and 372-1). Numbness or paresthesias in both feet may arise from a spinal cord lesion; this is especially likely when the upper level of the sensory loss extends to the trunk.

5p ongxaemnumber1 29-11-2010 76 3   Download

Expanders are an essential component of leadracid batteries. They prevent performance losses in negative plates that would otherwise be caused by passivation and structural changes in the active material. The functions of the components of modern negative-plate expanders are described and data are presented to show how the capacity and life of the battery are affected by the type and amount of barium sulfate and lignin incorporated in the expander blend.

4p congdat261 19-11-2010 83 6   Download