Electric kettle.pptx
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An electric kettle is an electric device used to heat water and other beverages quickly. The first electric kettle was invented in 1891 but took over 10 minutes to boil water due to its design. Modern electric kettles have a heating element directly in the water for faster boiling. They consist of a base that transfers electricity to a top section containing a heating element, indicator light, and thermostat to automatically shut off the device once the water reaches its boiling point. Electric kettles work by converting electrical energy into heat energy through a thick metal coil at the bottom of the container.
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transformer ppt
1) A transformer works on the principle of mutual induction, where changing magnetic flux in one coil induces an EMF in a neighboring coil.
2) There are two types of transformers: step-up transformers which increase voltage, and step-down transformers which decrease voltage.
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Voltmeters measure voltage, ammeters measure current, wattmeters measure power, and energy meters measure energy consumption. Ohmmeters measure resistance. Multimeters can measure voltage, current, and resistance. Clamp meters can measure current without direct contact. Megohmmeters specifically measure high insulation resistance. These instruments come in analog and digital forms and measure either AC or DC as appropriate to the application.
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star delta auto starter with forward reverse and motor protection
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Quality fireplace & electric hot water system to bolster comfort in canberra
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It took more than a century and several contributions to arrive at the current state of domestic water heaters and fireplace in Canberra.0cean and thermal energy for electrical power generation.ppt
Ocean thermal energy conversion (OTEC) utilizes the temperature difference between warm surface ocean waters and cooler deep ocean waters to operate a heat engine and generate electricity. The warm surface water is used to evaporate a working fluid like ammonia in a vaporizer, which then drives a turbine that powers a generator before being condensed back into a liquid using cold water from the depths. While OTEC provides renewable energy without pollution, the technology is not yet cost-effective compared to other sources due to large plant sizes and costs, as well as technical challenges associated with the corrosive, saline ocean environment.
Solar water heating
This document provides an overview of solar water heating systems. It discusses the different types of solar thermal collectors and systems, including integral collector storage (ICS), flat plate, and evacuated tube collectors. The document describes batch, drainback, and antifreeze heat exchanger systems. It stresses the importance of reducing hot water usage and evaluating needs before installing a solar thermal system. The document also compares solar water heating to conventional tank systems, heat pump water heaters, and tankless water heaters. Case studies of specific solar installations are presented to illustrate system components and design.
Thermal energy
All information is gather through a vartiry of resources and is only here to help my students with classroom instruction
Energy transfer and storage
This document provides an overview of energy transfer and storage. It discusses different forms of energy including kinetic, sound, thermal, chemical, electrical, and gravitational potential energy. It explains how energy can be transferred through conduction, convection, and radiation. It also covers the differences between heat and temperature. Additionally, it distinguishes between non-renewable resources like fossil fuels and renewable resources such as biomass, wind, water, geothermal, and solar energy. Finally, it discusses how energy can be generated and saved.
Electricity
Electricity is very important in our daily lives and it would be difficult to function without it as many things in our homes rely on electricity. The document discusses where electricity comes from including main electricity from outlets and batteries. It defines key terms like power plants, sockets, plugs, and wires. Current electricity can be converted into different types of energy like heat, light, sound, and movement. The document concludes with safety tips about keeping water and electricity separate.
Electricity
Electricity is very important in our daily lives and it would be difficult to function without it as many things in our homes rely on electricity. The document discusses where electricity comes from including main electricity from outlets and batteries. It defines important electricity terms like power plants, sockets, plugs, and wires. Current electricity can be converted into different types of energy like heat, light, sound, and movement. The document concludes with safety rules around water, overloading sockets, and switches.
Renewable Energy Technologies course -Chapter 3 solar energy
this chapter explain give information about :
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• Solar thermal energy
• Photovoltaics (Solar cells)
• CO2 capture and solar fuels
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Electric kettle.pptx
- 1. Electric kettle B Y : R A J VA R D H A N T O M A R R A H U L K U M A R M I S H R A
- 2. What is Electric Kettle? • It is an electric device that is used to heat up water, tea, coffee or any other beverage. • It takes lesser time than traditional heating devices like gas burner ..
- 3. History of electric kettle • The first kettle to use electricity to heat water came from Carpenter Electric Company in Chicago in 1891. However, the water took more than 10 minutes to come to a boil because of a major design problem – the heating element was in a separate compartment, rather than in the water as is the case in modern kettles. •
- 4. Parts of electric kettle • A base : Which helps in transferring electric energy to the top part. • Heating element : Helps in converting the electric energy to heat energy • Indicator : Helps in indicating if the water has reached the boiling point or not. Thermostat : Helps in switching off the device when a certain temperature is reached.
- 5. Structure of electric kettle? • Electric kettle is generally divided into a base and a top . • The base is connected with the power cord • The bas has an outcome that gets interlocked with the top part when kept on it. • When the power cord is plugged in the electricity passes to the top part also.
- 6. How electric kettle work? • Electric kettle has a thick metal coil in the bottom of container that is called heating element. • When electricity is allowed to flow the resistance of the heating element turns the electrical energy into heat energy. • Now when the element is heated then water or any other substance inside it also start getting heated