niusha ztm

niusha ztm

Followers 0
Following 0
In the previous section, you read about the conditions and principle that a single-phase induction motor works depending on them.Now it is time to know more about the different Types of Single-Phase Induction Motor.Based on the different methods for starting the single-phase IM, there are four main different types that we are going to deliver some useful information about each of them in the following sections.Read more One type of electric motor is a Single Phase Induction Motor, which generally converts electrical energy into mechanical energy.It is used in domestic and industrial uses and is very economical.Join us to review the single-phase induction motor.An induction motor or asynchronous motor is an  AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.
3
compound DC motors are basically made up of a combination of series and shunt motors.they are also called DC compound motors.this type of motor has both series and shunt field coils that are connected to the winding of an armature.These field coils linked to the armature windings, afford the essential amount of magnetic flux, and lead to generate the torque necessary to aid the rotation at the desired speed level in the armature.read moreIn the previous articles, we talked about DC motors.DC Compound Motor.A DC motor is any of a class of rotary electrical motors that converts direct current electrical energy into mechanical energy.
2
Solar energy is one of the types of energy that has high efficiency and does little damage to the environment.This energy has industrial and domestic uses.In this article, the different types of solar energy are examined.A few years ago, the possibility of collecting solar energy from space and distributing it to the earth seemed like an idea that was light years away.Several countries including the US, China, Japan, India, and many countries in Europe are working on harnessing space-based solar power (SBSP) and are also building new technologies to facilitate it.Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.It is an essential source of renewable energy, and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power.Active solar techniques include the use of photovoltaic systems, concentrated solar power, and solar water heating to harness the energy.Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air.
5
Hydroelectricity is electricity produced from hydropower.In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity, and was expected to increase by about 3.1% each year for the next 25 years.You must have heard the name Hydroelectric Energy by now.In short, the electrical energy produced in hydropower plants is called Hydroelectric Energy.In this article, we intend to discuss the uses, hydroelectric energy Pros and Cons.Hydropower is produced in 150 countries, with the Asia-Pacific region generating 33 percent of global hydropower in 2013.
3
First, we provide a brief definition of it.Stay with us.Tidal power or tidal energy is harnessed by converting energy from tides into useful forms of power, mainly electricity using various methods.Although not yet widely used, tidal energy has the potential for future electricity generation.Among sources of renewable energy, tidal energy has traditionally suffered from relatively high cost and limited availability of sites with sufficiently high tidal ranges or flow velocities, thus constricting its total availability.dynamic tidal power, tidal lagoons) and turbine technology (e.g.new axial turbines, cross flow turbines), indicate that the total availability of tidal power may be much higher than previously assumed and that economic and environmental costs may be brought down to competitive levels.In the following, we intend to examine the Pros of Tidal Power.Convertibility is one of the most important benefits of tidal energy.Also, being environmentally friendly or Minimal damage to the environment are other Tidal Energy Advantages.
8
Wind power or wind energy is the use of wind to provide mechanical power through wind turbines to turn electric generators for electrical power.Wind power is a popular sustainable, renewable source of power that has a much smaller impact on the environment compared to burning fossil fuels.Certainly wind energy, like other energies, in addition to its many benefits, also causes harm to the environment.In this article, we will review the pros and cons of wind energy.Join us to get complete information about wind-energy advantages and disadvantages.While unconventional power generation techniques come with the benefit of green energy, the efficiency and implementation-related challenges have been a downer.This is why a future concept like the airborne wind energy is taking flight.
3
Learning the cooling tower diagram can help you to a great extent if you are eager to know about these systems or want to buy one for your industrial or commercial use.These systems have been designed to help remove the excess heat and transfer it to the outside environment.So understanding the diagram will help you know them better and choose the right one for your specific application.To buy cooling towers, it is better to know the diagram and how it works.In this article, we provide you with this information so that you can buy the most suitable cooling tower for industrial environments.A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature.Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or, in the case of closed circuit dry cooling towers, rely solely on air to cool the working fluid to near the dry-bulb air temperature.
6
HRV vs ERV and the definition of eachHeat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR), is an energy recovery ventilation system which works between two sources at different temperatures.Heat recovery is a method which is increasingly used to reduce the heating and cooling demands (and thus energy costs) of buildings.By recovering the residual heat in the exhaust gas, the fresh air introduced into the air conditioning system is pre-heated (pre-cooled), and the fresh air enthalpy is increased (reduced) before the fresh air enters the room or the air cooler of the air conditioning unit performs heat and moisture treatment.A typical heat recovery system in buildings consists of a core unit, channels for fresh air and exhaust air, and blower fans.To choose between HRV and ERV ventilation systems, we need to know the difference between heat recovery ventilation and energy recovery ventilator, the exact introduction and application of each.Energy recovery ventilation (ERV) is the energy recovery process in residential and commercial HVAC systems that exchanges the energy contained in normally exhausted air of a building or conditioned space, using it to treat (precondition) the incoming outdoor ventilation air.The specific equipment involved may be called an Energy Recovery Ventilator, also abbreviated ERV.The main difference between HRV and ERV systems is in their center unit.
4
In the continuation of this article, you will find the answer to this question and any other question about heat pumps vs air conditioners.Join us.A heat pump is a device that transfers heat energy from a source of heat to what is called a thermal reservoir.Heat pumps move thermal energy in the opposite direction of spontaneous heat transfer, by absorbing heat from a cold space and releasing it to a warmer one.A heat pump uses external power to accomplish the work of transferring energy from the heat source to the heat sink.The most common design of a heat pump involves four main components – a condenser, an expansion valve, an evaporator and a compressor.The heat transfer medium circulated through these components is called refrigerant.
1
 Chillers fall under two categories: vapor absorption and vapor compression.Between these two categories the vapor compression chillers are the most common in use.One kind of categorization put vapor compression chillers into two different categories of air chillers and water chiller systems.Moreover, there is another way of categorization of vapor compression chillers which is based on the type of compressor technology.According to this categorization, we have centrifugal, scroll, reciprocating and screw chillers.If we want to have a very short and brief description of chillers, we have to say that a water chiller system is a device that is used to cool the water temperature down.What is a water chiller?
4
What is HVAC System?HVAC is a term stemmed from ‘Heating, Ventilating, and Air Conditioning’, and it is a system that is aimed to provide comfort for indoor areas.Science contributes to identification of various measures for that comfort and thermal control, and HVAC systems will be engineered based on the desired design points.The three major functions of heating, ventilation, and air conditioning are interrelated, especially with the need to provide thermal comfort and acceptable indoor air quality within reasonable installation, operation, and maintenance costs.HVAC systems can be used in both domestic and commercial environments.HVAC systems can provide ventilation, and maintain pressure relationships between spaces.The means of air delivery and removal from spaces is known as room air distribution.Below you can see pictures of HVAC.In what cases is it used?HVAC system is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
7
Stay with us.Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort.Its goal is to provide thermal comfort and acceptable indoor air quality.HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer."Refrigeration" is sometimes added to the field's abbreviation, as HVAC or HVACR or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).HVAC MaintenanceAll modern air conditioning systems, even small window package units, are equipped with internal air filters.For example, a building in a high dust environment, or a home with furry pets, will need to have the filters changed more often than buildings without these dirt loads.
In this article, we are going to talk about cooling towers.What is a cooling tower?A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature.Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or, in the case of closed circuit dry cooling towers, rely solely on air to cool the working fluid to near the dry-bulb air temperature.What are the  types of cooling towers?Different types of cooling towers are there to help solve a major problem in the modern world: removing excess heat!
In this article, we are going to introduce a gas turbine.We will also examine the Gas Turbine Cycles and its different types.What is Gas Turbine:A gas turbine, also called a combustion turbine, is a type of continuous and internal combustion engine.The main elements common to all gas turbine engines are:an upstream rotating gas compressora combustora downstream turbine on the same shaft as the compressor.The first gas turbine type was turbojet engines.Although they look entirely different from reciprocal engines, they operate on the same principle: intake, compression, power and exhaust.In this type of engine, air is moved at a high speed to the fuel inlet and ignitor of the combustion chamber.Click here to read more about different types of gas turbine.
In this article, we will introduce DC motors, introduce its different parts, and finally examine the DC motor working principles operation.Stay with us.What is DC Motor?The most common types rely on the forces produced by magnetic fields.Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current in part of the motor.DC Motor Applications include the following:Electric vehiclesElevators and liftsFansCranes, etcDC Motor TypesPermanent Magnet DC MotorThe permanent magnet motors work by a permanent magnet to make a field flux.Instead, it uses permanent magnets to provide a magnetic field against which the rotor field interacts to produce torque.This type of direct connection motor makes excellent starting torque, and it has good speed regulation.
This cut-off allows the steam to then expand within the cylinder.This expanding steam is still sufficient to drive the piston, even though its pressure decreases as it expands.As less steam is supplied in the shorter time for which the valve is open, use of the expansion valve reduces the steam consumed and thus the fuel required.The engine may deliver two-thirds of the work, for only one-third of the steam.types of expansion devices as follows:Thermal expansion valvesManual valvesCapillary tubesAutomatic valvesElectronic expansion valvesFloat valvesThermal Expansion Valves A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a device that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the vapor leaving the evaporator.To read more about the control valve types, refer to this link.In the following, we intend to introduce and thoroughly review the control valve parts.Depending on the control valve characteristics and its design, some parts differ within the control valve, but the rest is pretty much the same.Some parts of the control valve are: Control valve positioner, trim, body, etc.Click to read moreDifferent ball valve partsLet’s get into different ball valve parts to have an overall idea of how ball valve manufacturers put them together to help us control the flow inside a system.Ball valve : ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to control flow through it.
 In this article, we are going to examine the differences between dynamo and generator.In electricity generation, a generator is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit.Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks.The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday.The DC generator consists of several parts.The name the part of dc generator are poles, pole shoes, armature core, armature winding, commutator.
What is mechanical draft?T Which gas is used in ACAir conditioner is the process of removing moisture and cooling the air in a closed environment.They are commonly used in residential and commercial buildings.It is also used to cool and dehumidify rooms where electronic devices are located, such as computer server rooms.Let’s find out which gas used in AC over the years.Chlorofluorocarbons (CFCs): The most common refrigerant in the past was a CFC, most commonly called as Freon.Freon was a brand name for a refrigerant “R-12” by Dupont.The manufacturing of CFCs was discontinued in 1994 as the CFCs are one of the main reasons for greenhouse gas effect and depletion of ozone layer.
In so doing, the latent heat is released by the substance and transferred to the surrounding environment.Condensers can be made according to numerous designs, and come in many sizes ranging from rather small (hand-held) to very large (industrial-scale units used in plant processes).For example, a refrigerator uses a condenser to get rid of heat extracted from the interior of the unit to the outside air.In any systems with heat transfer like refrigerators, home air conditioning equipment chillers, heat pumps and ventilators there are many parts cooperating to transfer heat out of the entire system: but among these parts, one of them is basically known as the heat rejector and it is called condenser.We are going to examine how does a condenser work .The vapor typically enters the condenser at a temperature above that of the secondary fluid.As this process occurs along the condenser, the quantity of vapor decreases and the quantity of liquid increases; at the outlet of the condenser, only liquid remains.
 In this article, we will give an overview of solar batteries and their applications, as well as a Lancashire boiler.First, we go to solar batteries.This type of battery is environmentally friendly.What is best solar Batteries?Vivint Solar LG Chem batteryOne of the best solar batteries is Vivint Solar LG Chem, perfect for places with frequent blackouts.You can use these lithium-ion batteries for indoor and outdoor solar installations.They come with a 10-year performance warranty enabling you to get the most out of your battery for almost 10 years.
More

Top