Electricity is generated at power stations from various energy sources like hydroelectric, nuclear, coal, wind, solar and natural gas. Generators transform this input energy into alternating current (AC) electrical energy, which is more efficient for long distance transmission than direct current (DC). Efficiency is a measure of the energy output versus input. Common rates for electricity are charged per kilowatt-hour, with time-of-use rates accounting for supply and demand. Calculating the cost to operate devices uses the power used, operating time and rate charged. An example compares the lower cost of a 13W CFL bulb versus a 60W incandescent bulb over 3 hours using time-of-use rates. Homework questions
Electricity generation, distribution and transmissionAshar143
COMSATS Institute of Information and Technology, Sahiwal
Department of Electrical Engineering
Prepared By: Umaiz Ahmad and Yasir Zulfiqar
CONTACT:
+92-321-7899091
+92-336-0006247
Electricity generation, distribution and transmissionAshar143
COMSATS Institute of Information and Technology, Sahiwal
Department of Electrical Engineering
Prepared By: Umaiz Ahmad and Yasir Zulfiqar
CONTACT:
+92-321-7899091
+92-336-0006247
this ppt was created by me and i hope it helps to all of you out there. peace
objective : school projects
personal reference
teachers reference
i know its a bit lengthy but im 100% sure it will be helpful
plz leave a like
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this ppt was created by me and i hope it helps to all of you out there. peace
objective : school projects
personal reference
teachers reference
i know its a bit lengthy but im 100% sure it will be helpful
plz leave a like
thxs
Of course, this suggests that turning off a switch completes a circuit. Electricity travels from the electric wire to the light and then about to the wire. The quantity of energy units utilized during that billing period varies between one month’s reading and the following.
Students from Unit 3/4 VCE Environmental Science visited Ecolinc in Bacchus Marsh to participate in various practical experiments and demonstrations about energy.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2. • Where does the electricity that we get from an
electrical outlet in our home come from?
• Electrical generating station (transfer of one
kind of energy to electrical energy):
– Hydroelectric
– Nuclear
– Coal
– Wind
– Solar
– Natural Gas
– Other (Geothermal, Biomass, etc.)ha
3. Energy Input
• No matter the type of energy input,
generators will take that energy and
transform mechanical energy to electrical
energy:
4. • Alternating Current (AC) produced by
generators at electric generating stations
when flow of electrons alternates in direction
in an electric current
– Used in power generating stations because it is
more efficient method of distributing electrical
energy over long distances than DC
• Direct Current (DC) produced by an electric
cell when flow of electrons in one direction
through an electric circuit
5. • Efficiency: comparison of energy output of a
device to energy input (energy supplied)
• % Efficiency = (Eout / Ein) x 100%
• Ex: an incandescent lightbulb uses 100 J of
electrical energy to produce 35 J of light
energy. Calculate the % efficiency of the light
bulb.
• % efficiency = (35 J / 100 J) x 100% = 35%
6.
7. • What do you think is the best Type of Energy
to use in Power Generation?
8. • Typically rate charged by electrical generating
companies is per kilowatthour
• kilowatthour: the SI unit for measuring
electrical energy usage; the use of one
kilowatt of power for one hour
• Many electrical generating companies will bill
customers using time-of-use (TOU) rates
(based on supply and demand)
9.
10. • Can use equation to determine how much it
costs to operate certain devices in your home:
• Cost to operate = power used x time x rate
charged
• Ex: Compare the cost to operate a 60 W
incandescent light bulb for 3 hours compared
to a 13 W CFL for 3 hours. Use Toronto Hydro
rates for off-peak hours. {These 2 bulbs are
comparable in the amount of light produced.}
12. Homework Questions
From lesson on electrical quantities:
Questions on Elect. Power: w/b page 20 #1,3,4,5,6
Questions related to this lesson:
w/b page 20 Efficiency: 1-3
w/b page 20 Paying for Electricity: 1,2,4
From lesson on total resistance and complex circuits:
w/b page 22 attempt all questions.
