Chan yeeyi convection
•Download as PPT, PDF•
3 likes•2,087 views
Convection is the transfer of heat by the circulation of currents from one region to another in a fluid (liquid or gas). Hot fluids expand and become less dense, rising and transferring heat to cooler regions where denser fluids descend in convection currents. Examples include heated water in a pot forming convection currents and atmospheric convection driving weather patterns with warm air rising and cool air falling. Convection can be natural, driven by density differences, or forced with an external mechanism like a pump circulating the fluid. Convection currents efficiently transport thermal energy in applications like kettles, heaters, air conditioners and refrigerators.
Report
Share
Report
Share
Recommended
Convection current
Convection currents are caused by uneven heating of a fluid which causes the warmer, less dense areas to rise and cooler, more dense areas to sink. There are two main types of convection - forced convection, driven by external forces like fans or pumps, and natural convection, driven by density differences in the fluid. Convection occurs in the Earth's mantle, oceans, atmosphere and within appliances like kettles and refrigerators. While convection provides advantages like heating and cooling, excess heat production from electrical resistance according to Joule's law can lead to overheating and safety issues if heat is not properly dissipated.
Convection
hi viewers,
this is Ishita Soni of class VII-B.I study in GD Goenka Public School. This is a knowledge sharing presentation on convection. Please have a quick glance on it so that i have a good response and experience so that i come up with more attractive presentations later.
THNX
Convection
Convection is the transfer of heat by the movement of fluids. Warm fluids rise and cool fluids sink, creating a circular flow of heat. When water in a pot is heated, the water at the bottom heats up first, expands, rises through the cooler water above it, cools and sinks back down, creating a convection current that circulates and heats all the water.
Ch 24 3 solar energy & wind
The document discusses different sources of renewable energy and atmospheric winds. It explains that solar energy comes from the sun and can be reflected, absorbed by the atmosphere or Earth's surface. Energy is transferred through radiation, convection and conduction. Winds are caused by differences in air pressure and temperature, and include local sea and land breezes as well as global winds like prevailing winds and monsoons, which are large-scale variations of land and sea breezes between seasons.
6th Grade Chapter 18 Part 2
This document summarizes key concepts about weather and climate. It discusses different weather factors like temperature, wind, humidity and how they are measured. It describes different cloud types and how weather patterns form due to air mass movements. It also explains severe weather events like tornadoes and hurricanes. Finally, it discusses climate zones and how climates can change over time due to various natural and human-caused factors like the greenhouse effect and global warming.
Crown capital management jakarta indonesia flooded summer season, atlantic o...
Northern Europe experiences wetter summers when the Atlantic Ocean is warmer due to a cyclical pattern of ocean temperatures called the Atlantic Multidecadal Oscillation. The researchers compared weather conditions during past warm and cool phases of this cycle and found that warm Atlantic phases favor milder springs, summers, and autumns for England and Europe, along with wetter than usual conditions in northern and central Europe but drier than normal weather for southern Europe. This pattern is expected to continue as long as the Atlantic remains warmer than usual.
Energy transfer in atmosphere & hydrosphere
The document discusses energy transfer in the atmosphere and hydrosphere. It explains that the atmosphere and hydrosphere absorb and store thermal energy from the sun, acting as heat sinks to help regulate Earth's temperature. Radiation from the sun is mostly absorbed by gases in the atmosphere like water vapor, carbon dioxide, and ozone. Conduction and convection transfer heat within the atmosphere. The hydrosphere includes water in oceans, lakes, ice, and vapor in the air. The water cycle involves evaporation, condensation, and precipitation. Ocean currents influence global and regional climates.
Convection
Convection involves heat transfer through the movement of fluids like air or gas. There are two types of convection - natural convection, which is caused by changes in density, and forced convection, which involves an external energy source moving the fluid. Factors that impact convection include velocity, size, shape, and the properties of the medium like density, viscosity, and thermal conductivity. For humans, natural convection can account for 30-40 watts per square meter of heat loss from the skin, showing its importance. Having fur or feathers provides an insulating layer of trapped air that reduces convective heat loss. Forced convection becomes the dominant form of heat transfer when wind speeds exceed about 0.2 meters
Recommended
Convection current
Convection currents are caused by uneven heating of a fluid which causes the warmer, less dense areas to rise and cooler, more dense areas to sink. There are two main types of convection - forced convection, driven by external forces like fans or pumps, and natural convection, driven by density differences in the fluid. Convection occurs in the Earth's mantle, oceans, atmosphere and within appliances like kettles and refrigerators. While convection provides advantages like heating and cooling, excess heat production from electrical resistance according to Joule's law can lead to overheating and safety issues if heat is not properly dissipated.
Convection
hi viewers,
this is Ishita Soni of class VII-B.I study in GD Goenka Public School. This is a knowledge sharing presentation on convection. Please have a quick glance on it so that i have a good response and experience so that i come up with more attractive presentations later.
THNX
Convection
Convection is the transfer of heat by the movement of fluids. Warm fluids rise and cool fluids sink, creating a circular flow of heat. When water in a pot is heated, the water at the bottom heats up first, expands, rises through the cooler water above it, cools and sinks back down, creating a convection current that circulates and heats all the water.
Ch 24 3 solar energy & wind
The document discusses different sources of renewable energy and atmospheric winds. It explains that solar energy comes from the sun and can be reflected, absorbed by the atmosphere or Earth's surface. Energy is transferred through radiation, convection and conduction. Winds are caused by differences in air pressure and temperature, and include local sea and land breezes as well as global winds like prevailing winds and monsoons, which are large-scale variations of land and sea breezes between seasons.
6th Grade Chapter 18 Part 2
This document summarizes key concepts about weather and climate. It discusses different weather factors like temperature, wind, humidity and how they are measured. It describes different cloud types and how weather patterns form due to air mass movements. It also explains severe weather events like tornadoes and hurricanes. Finally, it discusses climate zones and how climates can change over time due to various natural and human-caused factors like the greenhouse effect and global warming.
Crown capital management jakarta indonesia flooded summer season, atlantic o...
Northern Europe experiences wetter summers when the Atlantic Ocean is warmer due to a cyclical pattern of ocean temperatures called the Atlantic Multidecadal Oscillation. The researchers compared weather conditions during past warm and cool phases of this cycle and found that warm Atlantic phases favor milder springs, summers, and autumns for England and Europe, along with wetter than usual conditions in northern and central Europe but drier than normal weather for southern Europe. This pattern is expected to continue as long as the Atlantic remains warmer than usual.
Energy transfer in atmosphere & hydrosphere
The document discusses energy transfer in the atmosphere and hydrosphere. It explains that the atmosphere and hydrosphere absorb and store thermal energy from the sun, acting as heat sinks to help regulate Earth's temperature. Radiation from the sun is mostly absorbed by gases in the atmosphere like water vapor, carbon dioxide, and ozone. Conduction and convection transfer heat within the atmosphere. The hydrosphere includes water in oceans, lakes, ice, and vapor in the air. The water cycle involves evaporation, condensation, and precipitation. Ocean currents influence global and regional climates.
Convection
Convection involves heat transfer through the movement of fluids like air or gas. There are two types of convection - natural convection, which is caused by changes in density, and forced convection, which involves an external energy source moving the fluid. Factors that impact convection include velocity, size, shape, and the properties of the medium like density, viscosity, and thermal conductivity. For humans, natural convection can account for 30-40 watts per square meter of heat loss from the skin, showing its importance. Having fur or feathers provides an insulating layer of trapped air that reduces convective heat loss. Forced convection becomes the dominant form of heat transfer when wind speeds exceed about 0.2 meters
Lecture Atmospheric Temperature
Temperature is a measure of the average kinetic energy of particles in a substance. It is expressed on comparative scales like Celsius, Fahrenheit and Kelvin. Thermometers use materials like mercury that expand with increasing heat to measure temperature. Temperature inversions occur when warm air is above cooler air near the surface, trapping pollutants. Inversions impact air quality by preventing the dispersion of pollution. Clouds also impact temperature by reflecting sunlight to lower maximum temperatures while trapping heat at night to raise minimums.
Understanding Weather - Craig Casillas
This document discusses the key concepts of weather and weather forecasting. It explains that weather is affected by the amount of water in the air and the water cycle. It also discusses humidity, clouds, precipitation, air masses and fronts, air pressure, severe weather like thunderstorms and tornadoes, and hurricanes. Finally, it covers weather forecasting technology including instruments like psychrometers to measure humidity, and tools like radar, satellites, and weather maps that are used to track weather systems and forecast conditions.
Air pressure wind
Air pressure decreases with increasing altitude and is affected by temperature, humidity, and elevation. It is measured using a barometer. Differences in air pressure cause winds to move from high to low pressure areas. Global wind patterns like trade winds and jet streams curve due to the Coriolis effect. Local winds are influenced by geographic features and temperature variations between land and bodies of water. Changes in weather occur when different air masses characterized by their temperature and moisture content meet at fronts like cold fronts and warm fronts, which can lead to thunderstorm formation.
Harsh chemistry ppt
Evaporation is the process by which a liquid is converted into its gaseous form below its boiling point. It occurs through the diffusion of the liquid's vapor through air. The rate of evaporation is affected by temperature, humidity, surface area, and wind speed. Higher temperatures, lower humidity, larger surface areas, and stronger winds all increase the evaporation rate. Evaporation causes cooling by absorbing heat from the surrounding environment during the phase change from liquid to gas.
Prentice Hall Earth Science ch17 atmosphere
This document provides information about the structure and temperature of the atmosphere. It begins by defining weather and climate, and describing the major components of air. The four layers of the atmosphere - troposphere, stratosphere, mesosphere, and thermosphere - are then outlined based on how temperature changes with altitude in each. Key concepts covered include the greenhouse effect, how solar radiation interacts with the atmosphere and Earth's surface, the impact of altitude and latitude on temperatures, and using a psychrometer to measure relative humidity and dew point.
Phes ch18 Clouds
The document summarizes key concepts about the water cycle and atmospheric moisture. It discusses the different states of water, how humidity is measured, the formation of clouds through lifting mechanisms like convection and orographic lifting, different types of clouds, and how precipitation forms through processes like the Bergeron process and collision-coalescence.
Convection cell all
A convection cell forms when warm air rises from areas of low pressure and cooler air sinks into areas of high pressure, creating a circular pattern. The difference in air pressure and temperature between regions drives surface winds, with wind intensity increasing as pressure differences grow. Unequal heating and cooling of air is what results in these pressure differences, causing warm air to rise and cold air to sink in a convection cell.
Key terms in weather and climate
This document defines over 50 key terms related to weather and climate, including:
- Absolute humidity, which is the mass of water vapor in a given volume of air.
- Air masses, which are large bodies of air with similar temperature and humidity characteristics.
- Climate, which is the average weather condition at a particular place over a period of time.
- Fronts, such as cold fronts and warm fronts, which are the leading edges of air masses with different temperatures.
#13 Precipitation & Weather Patterns
Precipitation occurs through the water cycle as air parcels rise and cool. As air cools, water vapor condenses to form clouds and precipitation falls as rain, snow, sleet or hail. There are three main processes that drive precipitation: convection, orographic weather from air rising over mountains, and frontal boundaries when warm and cold air masses meet.
Moisture, Clouds, and Precipitation
The document discusses the water cycle and atmospheric processes involving water. It describes the different states of water and the processes of changing between states, such as melting, evaporation, and condensation. It also discusses humidity, cloud formation mechanisms like lifting and cooling of air, cloud classification, how precipitation forms within clouds, and the different forms of precipitation like rain, snow, hail, and sleet.
Atmosphere
This document discusses key concepts about the atmosphere including:
- Climate refers to average weather conditions over long periods, while weather describes current atmospheric conditions.
- Key weather elements are air temperature, pressure, humidity, clouds, precipitation, visibility, and wind.
- Meteorology is the scientific study of atmospheric elements and phenomena.
- Atmospheric pressure, density, and temperature vary with altitude and play important roles.
- Clouds are classified based on their altitude and shape into high, middle, and low clouds.
Rainfall
Rain is formed through the hydrological cycle of evaporation and condensation. Water evaporates from oceans and land into the atmosphere, cools and condenses to form clouds, and falls back to the Earth as precipitation. There are three main types of rainfall: convectional rainfall caused by warm air rising; orographic rainfall caused by air rising over mountains; and cyclonic/frontal rainfall caused when two air masses meet along a front.
fronts- their formation and kinds
Fronts form along boundaries where differing air masses meet. There are five main types of fronts: warm fronts, cold fronts, stationary fronts, occluded fronts, and drylines. Warm fronts occur when warmer air advances over cooler air, forming clouds and producing light, steady precipitation. Cold fronts have a steeper slope and move faster than warm fronts, often producing heavy showers and thunderstorms when warmer air is rapidly lifted over the advancing cold air. An occluded front is formed when a cold front catches up to and overtakes a warm front.
PPt on Factors affecting evaporation by Prateek
This document defines evaporation, transpiration, and evapotranspiration. It then discusses the factors that affect the rate of evaporation, including the concentration of the evaporating substance and other substances in the air, temperature, air flow rate, intermolecular forces, surface area, and humidity. Specifically, it states that higher temperatures, stronger air flow, and lower humidity increase evaporation rates, while smaller surface areas and higher concentrations decrease evaporation rates.
Chapter 18
This document provides an overview of the water cycle and atmospheric moisture. It discusses the three states of water, the processes of evaporation, condensation, and sublimation. It describes how temperature and pressure affect the amount of water vapor air can hold. Cloud formation results from air rising and cooling, releasing water as condensation. Precipitation forms as cloud droplets grow very large. The document also discusses atmospheric stability and various mechanisms that cause air to rise and form clouds.
Science - Evaporation
Evaporation is the process where a liquid turns into vapor below its boiling point. The rate of evaporation is affected by temperature, surface area of the liquid, humidity of the air, and wind speed. Some advantages of evaporation include bringing rain, cooling water, sustaining the water cycle, purifying water, obtaining salt, and drying clothes.
Chapter 19
1. The highest recorded wind speed occurred in Mount Washington, New Hampshire in 1934 and was 372 km/h.
2. Air pressure is the pressure exerted by the weight of the air above and is measured using a barometer. It affects wind, temperature, humidity and weather forecasting.
3. Differences in air pressure cause wind to flow from high to low pressure areas, and the rotation of the Earth causes winds to be deflected via the Coriolis effect.
Martinescu Cristina Adriana
This document provides an introduction to depressions, which are low pressure weather systems that typically last several days and bring both normal and extreme weather to the UK. It describes how depressions form as warm, tropical air meets cold polar air at the polar front, causing the warm air to rise and clouds and rain to develop. It explains that air pressure falls as the warm air rises and expands, and that the Coriolis effect causes the wind to blow anticlockwise around low pressure systems in the Northern Hemisphere. Finally, it lists some factors that determine the potential damage caused by depressions, such as pressure difference, time of year, preceding weather conditions, storm path, tide levels, and forecast accuracy.
Geography ii air,presipitation
Air pressure exists due to the weight of the gases in Earth's atmosphere pressing down on the surface. Air pressure is greater at lower elevations where the air is more dense, and lower at higher elevations where the air molecules are farther apart. Although we cannot feel it, air pressure exerts a force equivalent to an elephant standing on a desk. It depends on factors like the density and temperature of the air.
Weather Theory Part II (Group C)
This document summarizes key concepts about air movement and wind patterns. It discusses how air always strives for equilibrium and moves from high to low pressure areas. It defines the differences between wind (horizontal air movement) and currents (vertical air movement). It also explains concepts like anti-cyclonic and cyclonic circulation, areas of high and low pressure, convective currents, land and sea breezes, mountain turbulence, low-level wind shear, microbursts, and how to read surface weather maps.
Modes of heat transfer ( ARIANA ANWAR 7 F).pptx
This document discusses different methods of heat transfer. It begins by defining heat and heat transfer. There are three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat between objects in direct contact. Convection involves the movement of heat by the circulation of fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves, requiring no medium for the transfer of heat. The document provides examples and equations for each type of heat transfer method. It concludes with a short quiz to test the reader's understanding.
Modes of heat transfer ( ARIANA ANWAR 7 F).pptx
This document discusses different methods of heat transfer. It begins by defining heat and heat transfer. There are three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat between objects in direct contact. Convection involves the movement of heat by the circulation of fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves, requiring no medium for the transfer of heat. The document provides examples and equations for each type of heat transfer method. It concludes with a short quiz to test the reader's understanding.
More Related Content
What's hot
Lecture Atmospheric Temperature
Temperature is a measure of the average kinetic energy of particles in a substance. It is expressed on comparative scales like Celsius, Fahrenheit and Kelvin. Thermometers use materials like mercury that expand with increasing heat to measure temperature. Temperature inversions occur when warm air is above cooler air near the surface, trapping pollutants. Inversions impact air quality by preventing the dispersion of pollution. Clouds also impact temperature by reflecting sunlight to lower maximum temperatures while trapping heat at night to raise minimums.
Understanding Weather - Craig Casillas
This document discusses the key concepts of weather and weather forecasting. It explains that weather is affected by the amount of water in the air and the water cycle. It also discusses humidity, clouds, precipitation, air masses and fronts, air pressure, severe weather like thunderstorms and tornadoes, and hurricanes. Finally, it covers weather forecasting technology including instruments like psychrometers to measure humidity, and tools like radar, satellites, and weather maps that are used to track weather systems and forecast conditions.
Air pressure wind
Air pressure decreases with increasing altitude and is affected by temperature, humidity, and elevation. It is measured using a barometer. Differences in air pressure cause winds to move from high to low pressure areas. Global wind patterns like trade winds and jet streams curve due to the Coriolis effect. Local winds are influenced by geographic features and temperature variations between land and bodies of water. Changes in weather occur when different air masses characterized by their temperature and moisture content meet at fronts like cold fronts and warm fronts, which can lead to thunderstorm formation.
Harsh chemistry ppt
Evaporation is the process by which a liquid is converted into its gaseous form below its boiling point. It occurs through the diffusion of the liquid's vapor through air. The rate of evaporation is affected by temperature, humidity, surface area, and wind speed. Higher temperatures, lower humidity, larger surface areas, and stronger winds all increase the evaporation rate. Evaporation causes cooling by absorbing heat from the surrounding environment during the phase change from liquid to gas.
Prentice Hall Earth Science ch17 atmosphere
This document provides information about the structure and temperature of the atmosphere. It begins by defining weather and climate, and describing the major components of air. The four layers of the atmosphere - troposphere, stratosphere, mesosphere, and thermosphere - are then outlined based on how temperature changes with altitude in each. Key concepts covered include the greenhouse effect, how solar radiation interacts with the atmosphere and Earth's surface, the impact of altitude and latitude on temperatures, and using a psychrometer to measure relative humidity and dew point.
Phes ch18 Clouds
The document summarizes key concepts about the water cycle and atmospheric moisture. It discusses the different states of water, how humidity is measured, the formation of clouds through lifting mechanisms like convection and orographic lifting, different types of clouds, and how precipitation forms through processes like the Bergeron process and collision-coalescence.
Convection cell all
A convection cell forms when warm air rises from areas of low pressure and cooler air sinks into areas of high pressure, creating a circular pattern. The difference in air pressure and temperature between regions drives surface winds, with wind intensity increasing as pressure differences grow. Unequal heating and cooling of air is what results in these pressure differences, causing warm air to rise and cold air to sink in a convection cell.
Key terms in weather and climate
This document defines over 50 key terms related to weather and climate, including:
- Absolute humidity, which is the mass of water vapor in a given volume of air.
- Air masses, which are large bodies of air with similar temperature and humidity characteristics.
- Climate, which is the average weather condition at a particular place over a period of time.
- Fronts, such as cold fronts and warm fronts, which are the leading edges of air masses with different temperatures.
#13 Precipitation & Weather Patterns
Precipitation occurs through the water cycle as air parcels rise and cool. As air cools, water vapor condenses to form clouds and precipitation falls as rain, snow, sleet or hail. There are three main processes that drive precipitation: convection, orographic weather from air rising over mountains, and frontal boundaries when warm and cold air masses meet.
Moisture, Clouds, and Precipitation
The document discusses the water cycle and atmospheric processes involving water. It describes the different states of water and the processes of changing between states, such as melting, evaporation, and condensation. It also discusses humidity, cloud formation mechanisms like lifting and cooling of air, cloud classification, how precipitation forms within clouds, and the different forms of precipitation like rain, snow, hail, and sleet.
Atmosphere
This document discusses key concepts about the atmosphere including:
- Climate refers to average weather conditions over long periods, while weather describes current atmospheric conditions.
- Key weather elements are air temperature, pressure, humidity, clouds, precipitation, visibility, and wind.
- Meteorology is the scientific study of atmospheric elements and phenomena.
- Atmospheric pressure, density, and temperature vary with altitude and play important roles.
- Clouds are classified based on their altitude and shape into high, middle, and low clouds.
Rainfall
Rain is formed through the hydrological cycle of evaporation and condensation. Water evaporates from oceans and land into the atmosphere, cools and condenses to form clouds, and falls back to the Earth as precipitation. There are three main types of rainfall: convectional rainfall caused by warm air rising; orographic rainfall caused by air rising over mountains; and cyclonic/frontal rainfall caused when two air masses meet along a front.
fronts- their formation and kinds
Fronts form along boundaries where differing air masses meet. There are five main types of fronts: warm fronts, cold fronts, stationary fronts, occluded fronts, and drylines. Warm fronts occur when warmer air advances over cooler air, forming clouds and producing light, steady precipitation. Cold fronts have a steeper slope and move faster than warm fronts, often producing heavy showers and thunderstorms when warmer air is rapidly lifted over the advancing cold air. An occluded front is formed when a cold front catches up to and overtakes a warm front.
PPt on Factors affecting evaporation by Prateek
This document defines evaporation, transpiration, and evapotranspiration. It then discusses the factors that affect the rate of evaporation, including the concentration of the evaporating substance and other substances in the air, temperature, air flow rate, intermolecular forces, surface area, and humidity. Specifically, it states that higher temperatures, stronger air flow, and lower humidity increase evaporation rates, while smaller surface areas and higher concentrations decrease evaporation rates.
Chapter 18
This document provides an overview of the water cycle and atmospheric moisture. It discusses the three states of water, the processes of evaporation, condensation, and sublimation. It describes how temperature and pressure affect the amount of water vapor air can hold. Cloud formation results from air rising and cooling, releasing water as condensation. Precipitation forms as cloud droplets grow very large. The document also discusses atmospheric stability and various mechanisms that cause air to rise and form clouds.
Science - Evaporation
Evaporation is the process where a liquid turns into vapor below its boiling point. The rate of evaporation is affected by temperature, surface area of the liquid, humidity of the air, and wind speed. Some advantages of evaporation include bringing rain, cooling water, sustaining the water cycle, purifying water, obtaining salt, and drying clothes.
Chapter 19
1. The highest recorded wind speed occurred in Mount Washington, New Hampshire in 1934 and was 372 km/h.
2. Air pressure is the pressure exerted by the weight of the air above and is measured using a barometer. It affects wind, temperature, humidity and weather forecasting.
3. Differences in air pressure cause wind to flow from high to low pressure areas, and the rotation of the Earth causes winds to be deflected via the Coriolis effect.
Martinescu Cristina Adriana
This document provides an introduction to depressions, which are low pressure weather systems that typically last several days and bring both normal and extreme weather to the UK. It describes how depressions form as warm, tropical air meets cold polar air at the polar front, causing the warm air to rise and clouds and rain to develop. It explains that air pressure falls as the warm air rises and expands, and that the Coriolis effect causes the wind to blow anticlockwise around low pressure systems in the Northern Hemisphere. Finally, it lists some factors that determine the potential damage caused by depressions, such as pressure difference, time of year, preceding weather conditions, storm path, tide levels, and forecast accuracy.
Geography ii air,presipitation
Air pressure exists due to the weight of the gases in Earth's atmosphere pressing down on the surface. Air pressure is greater at lower elevations where the air is more dense, and lower at higher elevations where the air molecules are farther apart. Although we cannot feel it, air pressure exerts a force equivalent to an elephant standing on a desk. It depends on factors like the density and temperature of the air.
Weather Theory Part II (Group C)
This document summarizes key concepts about air movement and wind patterns. It discusses how air always strives for equilibrium and moves from high to low pressure areas. It defines the differences between wind (horizontal air movement) and currents (vertical air movement). It also explains concepts like anti-cyclonic and cyclonic circulation, areas of high and low pressure, convective currents, land and sea breezes, mountain turbulence, low-level wind shear, microbursts, and how to read surface weather maps.
What's hot (20)
Similar to Chan yeeyi convection
Modes of heat transfer ( ARIANA ANWAR 7 F).pptx
This document discusses different methods of heat transfer. It begins by defining heat and heat transfer. There are three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat between objects in direct contact. Convection involves the movement of heat by the circulation of fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves, requiring no medium for the transfer of heat. The document provides examples and equations for each type of heat transfer method. It concludes with a short quiz to test the reader's understanding.
Modes of heat transfer ( ARIANA ANWAR 7 F).pptx
This document discusses different methods of heat transfer. It begins by defining heat and heat transfer. There are three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat between objects in direct contact. Convection involves the movement of heat by the circulation of fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves, requiring no medium for the transfer of heat. The document provides examples and equations for each type of heat transfer method. It concludes with a short quiz to test the reader's understanding.
HEAT TRANSFER
This document discusses the three main modes of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat through direct contact of materials without bulk motion. Convection refers to the transfer of heat by the movement of fluids like air and water. Radiation involves the emission and transmission of electromagnetic waves that transfer thermal energy between objects.
Heat transfer
1. Heat transfer is the process of transfer of heat from a high temperature system to a low temperature system, and can occur through three modes: conduction, convection, and radiation.
2. There are different types of heat transfer based on whether convection occurs naturally via fluid currents or is forced through external means like pumps. Key applications of heat transfer include evaporation, distillation, drying, and sterilization.
3. The rate of heat transfer depends on factors like temperature difference, surface area, thickness, and the thermal conductivity or heat transfer coefficients of materials. Mechanisms like conduction follow Fourier's Law while convection involves heat transfer through fluid layers and stagnant films at surfaces.
Transfer of heat and Green house effect.pptx
Heat can be transferred through three main modes: conduction, convection, and radiation. Conduction involves the transfer of heat between objects in direct contact through collisions of atoms and molecules. Convection involves the movement of heat by the circulation of fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves, requiring no medium, and can occur over large distances in vacuum. The greenhouse effect refers to the trapping of heat in a planet's atmosphere due to greenhouse gases, causing surface warming that makes life possible but is exacerbated by human emissions.
HEAT TRANSFER.pptx
This document discusses heat transfer through conduction, convection and radiation. Heat transfer is the process by which thermal energy is transferred when two bodies or objects at different temperatures are brought into contact. Conduction involves the transfer of heat through direct contact of particles. Convection involves the movement of heated fluids like gases and liquids. Radiation involves the emission and transmission of electromagnetic waves that occur even in the absence of matter between the objects.
Heat transfer in textile presentation
This document discusses heat transfer and the three main methods of heat transfer: conduction, convection, and radiation. Conduction involves direct contact between two objects, convection involves the transfer of heat by a fluid like air or water, and radiation involves the emission and absorption of electromagnetic waves. Specific examples of each method in textiles are provided, such as conductive heat transfer between fabrics in contact, convective drying of textiles, and radiative heat transfer from flames or the sun's rays. The key factors that influence each type of heat transfer are also outlined.
Introduction to heat transfer 26
This document provides an introduction to heat transfer, outlining the key modes of heat transfer (conduction, convection, radiation) and summarizing their main characteristics in 3 pages. It defines heat transfer and discusses how heat always moves from warmer to cooler places. The three modes of heat transfer - conduction, convection, and radiation - are then each described in one paragraph summaries. Key factors affecting thermal conductivity are also outlined.
Introduction to heat transfer
This document provides an introduction to heat transfer, outlining the key modes of heat transfer (conduction, convection, radiation) and summarizing their main characteristics. It also discusses factors that affect heat transfer such as thermal conductivity, and provides examples to illustrate heat transfer concepts.
Introduction to heat transfer
This document provides an introduction to heat transfer, outlining the key modes of heat transfer (conduction, convection, and radiation) and summarizing their main characteristics. Conduction involves the transfer of heat through direct contact of particles in solids, liquids, and gases. Convection refers to the transfer of heat by the movement of fluids, while radiation enables heat transfer through empty space via electromagnetic waves.
Thermal energy
Thermal energy naturally transfers from hotter to colder objects through three main methods:
(1) Conduction, where energy transfers through direct contact of particles in substances or between substances;
(2) Convection, where the flow of fluids like gases or liquids transfers energy; and
(3) Radiation, where electromagnetic waves transfer energy without requiring contact between objects. Technologies like furnaces and refrigerators control the rate of heating and cooling through these thermal energy transfer methods.
Heat transfer
Heat is transferred from hot to cold objects through three main methods: conduction, convection, and radiation. Conduction involves the direct contact and transfer of energy between particles. Convection occurs through the rising and falling circulation of heated liquids and gases. Radiation transfers heat through electromagnetic waves and does not require contact between the objects.
Pharmaceutical engineering: Heat transfer
Objectives, application, heat transfer mechanisms, Fourier's law, conduction, convection, radiation, heat interchangers, heat exchangers
introduction-to-convection-part-i1.pdf
Convection is the transfer of heat by the movement of fluids such as gases and liquids. When a fluid is heated, its particles gain energy and spread out, causing the fluid to become less dense. Cooler, more dense fluids then sink below the warmer, less dense fluids, setting up convection currents that transfer heat through the fluid. Convection occurs through both natural convection, driven by density differences in the fluid, and forced convection, where an external force like a fan drives the fluid flow. The convection heat transfer coefficient depends on factors like the fluid properties, flow characteristics, surface conditions, and geometry.
HEAT TRANSFER.pptx
The document discusses the three main modes of heat transfer: conduction, which is the transfer of heat between objects in direct contact; convection, which is the transfer of heat by the movement of fluids like gases and liquids; and radiation, which is the transfer of heat through electromagnetic waves such as infrared and visible light. Specific examples are provided for each type of heat transfer, and the key equations governing conduction, convection, and radiation are defined.
Transfer of Thermal Energy
Thermal energy is transferred from hot objects to cold objects in three ways: conduction, convection, and radiation. Conduction involves the transfer of thermal energy through direct contact of particles in solids. Convection involves the transfer of thermal energy by the circulation of fluids like gases and liquids. Radiation involves the transfer of thermal energy by electromagnetic waves and does not require a medium. Buildings use various insulation methods to reduce thermal energy transfer, like double-walled construction, air gaps, and reflective surfaces to reduce conduction, convection, and radiation.
Transfer of heat
This document discusses different methods of heat transfer:
1) Conduction is the transfer of heat through direct contact of particles without bulk motion of the material, such as from a hot metal rod to a cooler end.
2) Convection involves the transfer of heat by the bulk motion of fluids like air and water, such as hot air rising from a heated surface.
3) Radiation is the emission and propagation of energy in the form of electromagnetic waves or particles, without heating or cooling of the intervening medium, such as the emission of light and heat from a burning candle.
Heat Transfer Operations.pptx
Heat transfer operations involve the production and absorption of energy in the form of heat. There are three main mechanisms of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat through direct molecular contact within a material. Convection involves the transfer of heat by the movement of fluid molecules or groups of molecules. Radiation involves the transfer of heat through electromagnetic waves between surfaces.
Conduction_Convection_Radiation_Notes.ppt
This document discusses the three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the direct transfer of thermal energy between particles in direct contact with one another. Convection involves the transfer of heat by fluid currents within gases or liquids. Radiation involves the transfer of heat through electromagnetic waves and does not require direct contact between the warm object and cooler object. Examples are provided for each type of heat transfer.
Grade 7 HEAT Power point presentation pptx
This document discusses the three main methods of heat transfer: conduction, convection, and radiation. Conduction involves the transfer of heat through direct contact of particles. Convection involves the movement of heated particles within a fluid or gas. Radiation transfers heat via electromagnetic waves and does not require a medium, allowing heat from the sun to reach Earth through empty space. Good insulators prevent heat transfer by conduction and convection.
Similar to Chan yeeyi convection (20)
Recently uploaded
LinkedIn Strategic Guidelines for June 2024
LinkedIn is a powerful tool for networking, researching, and marketing yourself to clients and employers. This session teaches strategic practices for building your LinkedIn internet presence and marketing yourself. The use of # and @ symbols is covered as well as going mobile with the LinkedIn app.
欧洲杯外围-欧洲杯外围赛程-欧洲杯外围压注|【网址🎉ac99.net🎉】
【网址🎉ac99.net🎉】欧洲杯外围是爱尔兰的博彩公司，成立于1988年，位于爱尔兰的都柏林。欧洲杯外围通过在爱尔兰和英国的一系列持牌博彩商店以及经营爱尔兰最大的电话博彩服务来开展业务。在互联网上，欧洲杯外围提供体育博彩，在线扑克，在线宾果游戏，在线赌场和在线游戏。
一比一原版(kcl毕业证书)英国金斯顿大学毕业证如何办理
原版一模一样【微信：741003700 】【(kcl毕业证书)英国金斯顿大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(kcl毕业证书)英国金斯顿大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(kcl毕业证书)英国金斯顿大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(kcl毕业证书)英国金斯顿大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(kcl毕业证书)英国金斯顿大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Khushi Saini, An Intern from The Sparks Foundation
This is my first task as an Talent Acquisition(Human resources) Intern in The Sparks Foundation on Recruitment, article and posts.
I invitr everyone to look into my work and provide me a quick feedback.
一比一原版(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证如何办理
原版一模一样【微信：741003700 】【(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uwm毕业证书)美国威斯康星大学密尔沃基分校毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Kolkata call girls +91-8824825030 Vip Escorts Kolkata
Kolkata call girls +91-8824825030 Vip Escorts Kolkata
美洲杯投注-美洲杯投注比分-美洲杯投注比分投注|【网址🎉ac44.net🎉】
【网址🎉ac44.net🎉】美洲杯投注是世界上最大的网上博彩公司之一，于直布罗陀注册，在200个国家拥有超过3500万客户。在国际上都可以称得上是极其优秀的博彩公司。总部位于英国Stoke-on-Trent，美洲杯投注在世界各地的雇员超过600名。该公司登录亚洲市场多年，近年针对亚洲的市场拓展的很快。它的特点是投注赔率富于变化，同时对于冷门赛事，赔率变化幅度会大于其它博彩公司。美洲杯投注在终赔阶段往往向立博、韦德等靠拢，一旦差异很大，往往会出现问题。
欧洲杯投注-欧洲杯投注投注官方网站-欧洲杯投注买球投注官网|【网址🎉ac99.net🎉】
【网址🎉ac99.net🎉】在欧洲杯投注，你会发现数之不尽的在线博彩机会，包括世界各地的精彩体育赛事以及绝佳的赔率。此外，欧洲杯投注还会为你提供诸如赌场、宾果和扑克等在线游戏以及各种各样的奖金优惠，包括欧洲杯投注的免费投注。无论你是忠实的足球迷，或者是二十一点的专业玩家，在这里都可以找到你最感兴趣的投注市场或游戏。
欧洲杯买球-欧洲杯买球买球推荐-欧洲杯买球买球推荐网站|【网址🎉ac10.net🎉】
【网址🎉ac10.net🎉】欧洲杯买球是一家极具特色的欧洲主流博彩公司，对于自己所擅长的赛事往往把赔率值压得很低，掩饰平局是他们一贯的手法。例如，当伟德旗帜鲜明地支持客胜，降低客胜值，提升主胜值，而平局赔率却与欧洲杯买球、欧洲杯买球的态度较吻合时，这场比赛往往以平局收场。
一比一原版(dmu毕业证书)英国德蒙福特大学毕业证如何办理
原版一模一样【微信：741003700 】【(dmu毕业证书)英国德蒙福特大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(dmu毕业证书)英国德蒙福特大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(dmu毕业证书)英国德蒙福特大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(dmu毕业证书)英国德蒙福特大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(dmu毕业证书)英国德蒙福特大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Indore ℂall Girl Book 00000000 ℂall Girl Service In Indore
Indore ℂall Girl Book 00000000 ℂall Girl Service In Indore
欧洲杯外围-欧洲杯外围下注网址-欧洲杯外围下注网站|【网址🎉ac44.net🎉】
【网址🎉ac44.net🎉】在欧洲杯外围，你会发现数之不尽的在线博彩机会，包括世界各地的精彩体育赛事以及绝佳的赔率。此外，欧洲杯外围还会为你提供诸如赌场、宾果和扑克等在线游戏以及各种各样的奖金优惠，包括欧洲杯外围的免费投注。无论你是忠实的足球迷，或者是二十一点的专业玩家，在这里都可以找到你最感兴趣的投注市场或游戏。
Section 79(A) of Maharashtra Societies act 1860
Lot of redevelopment projects are going on, where law and procedures are not followed , causing harm to the members of the society . This PPT is useful for every citizen living in society Building
Parabolic antenna alignment system with Real-Time Angle Position Feedback
Introduction
Parabolic antennas are a crucial component in many communication systems, including satellite communications, radio telescopes, and television broadcasting. Ensuring these antennas are properly aligned is vital for optimal performance and signal strength. A parabolic antenna alignment system, equipped with real-time angle position feedback and fault tracking, is designed to address this need. This document delves into the components, design, and implementation of such a system, highlighting its significance and applications.
Importance of Parabolic Antenna Alignment
The alignment of a parabolic antenna directly affects its performance. Even minor misalignments can lead to significant signal loss, which can degrade the quality of the received signal or cause communication failures. Proper alignment ensures that the antenna's focal point is accurately directed toward the signal source, maximizing the antenna's gain and efficiency. This precision is especially crucial in applications like satellite communications, where the antenna must track geostationary satellites with high accuracy.
Components of a Parabolic Antenna Alignment System
A parabolic antenna alignment system typically includes the following components:
Parabolic Dish: The primary reflector that collects and focuses incoming signals.
Feedhorn and Low Noise Block (LNB): Positioned at the dish's focal point to receive signals.
Stepper or Servo Motors: Adjust the azimuth (horizontal) and elevation (vertical) angles of the antenna.
Microcontroller (e.g., Arduino, Raspberry Pi): Processes sensor data and controls the motors.
Potentiometers: Provide feedback on the antenna's current angle positions.
Fault Detection Sensors: Monitor for potential faults such as cable discontinuities or LNB failures.
Control Software: Runs on the microcontroller, handling real-time processing and decision-making.
Real-Time Angle Position Feedback
Real-time feedback on the antenna's angle position is essential for maintaining precise alignment. This feedback is typically provided by potentiometers or rotary encoders, which continuously monitor the azimuth and elevation angles. The microcontroller reads this data and adjusts the motors accordingly to keep the antenna aligned with the signal source.
Fault Tracking in Antenna Alignment Systems
Fault tracking is vital for the reliability and performance of the antenna system. Common faults include cable discontinuities, LNB malfunctions, and motor failures. Sensors integrated into the system can detect these faults and either notify the user or initiate corrective actions automatically.
Design and Implementation
1. Parabolic Dish and Feedhorn
The parabolic dish is designed to reflect incoming signals to a focal point where the feedhorn and LNB are located. The dish's size and shape depend on the specific application and frequency range.
2. Motors and Position Control
Stepper motors or servo motors are used to control the azimuth and elevation of
Recently uploaded (20)
NOSE CANCER Yashita lesson plan Health & Cancer Related Topics.pdf
NOSE CANCER Yashita lesson plan Health & Cancer Related Topics.pdf
Khushi Saini, An Intern from The Sparks Foundation
Khushi Saini, An Intern from The Sparks Foundation
Kolkata call girls +91-8824825030 Vip Escorts Kolkata
Kolkata call girls +91-8824825030 Vip Escorts Kolkata
Indore ℂall Girl Book 00000000 ℂall Girl Service In Indore
Indore ℂall Girl Book 00000000 ℂall Girl Service In Indore
EE1K.pdf/////////////////////////////////////////////
EE1K.pdf/////////////////////////////////////////////
Parabolic antenna alignment system with Real-Time Angle Position Feedback
Parabolic antenna alignment system with Real-Time Angle Position Feedback
Chan yeeyi convection
- 1. Transfer ofTransfer of heat :heat : ConvectionConvection
- 2. Transfer of heatof heat Heat • A form of energy. • Travels from a hotter region to a colder region until both regions are of the same temperature. • Transferred from a warmer to a colder region in three different ways: Conduction Convection Radiation
- 3. What is convection? ConvectionConvection • The transfer of heat by the circulation of currents from one region to another in a fluid (liquid or a gas). • Convection above a hot surface occurs because hot air expands, becomes less dense, and rises. • Hot water is likewise less dense than cold water and rises, causing convection currents which transport energy.
- 4. Examples of convection: Example 1 Heated water in the pot expands and becomes less dense. The warmer water will then rises while the cooler and denser water near the surface descends. Convection currents are formed.
- 5. Example 2 Atmospheric convection Atmospheric convection is a very important part of Earth’s weather. In atmospheric convection, Warm air moves upwards. Cool air falls downwards.
- 6. Example 3 Coal mines When a fire was lit up at the bottom, Hot air expands, becomes less dense, and rises. Cooler air from outside the coal mines enter the mines to take the place of the leaving air. Mines were thus ventilated with continuous supply
- 7. Natural and forced convectionNatural and forced convection Natural convection • It is caused by buoyancy forces due to density differences caused by temperature variations in the fluid. Eg. The buoyancy forces caused density differences in the air inside the room thus, convection occurs.
- 8. Forced convection • In forced convection, fluid is circulated by a plump or blower. Eg. In human circulatory system, a heart is needed to pump the blood to other parts of the body.
- 9. • Appliances such as kettles,heaters,air- conditioners and refrigerators make use of convection to heat up or cool down liquids or gases rapidly. Applications of convection
- 11. What are the three different ways of Heat Transfer? Ans : Convection , Conduction & Radiation
- 12. What is convection ? Ans : It is the transfer of heat by the circulation of currents from one region to another in a fluid (liquid or a gas).
- 13. What is the function of convection current? Ans : Convection current transports energy.
- 14. What are the two types of convection? Ans : They are natural convection and forced convection.
- 16. Presented By: Kimbly Yee Yi Izzah Ching Yee Lavanya