CONCEPT PEN

What is air conditioning system? Air conditioning is the process of treating air to more favorable conditions such as changes the temperature, humidity, cleanliness, distribution. It can be classified as follows. How to classify the air conditioning system? v   According to the arrangement of equipment ü   Unitary and central air conditioning system v   According to the need ü   Comfort and industrial air conditioning system v   According to the season ü   Winter and summer air conditioning system.   What is centralized air conditioning system? How it works? The centralized air conditioning system consists of the following components The main components available in centralized air conditioning system are v   Filter v   Heating coil v   Cooling coil v   Sprayers v   Blower v   Control panel How does a centralized air conditioning system works? v   Initially fresh air enters into the filter. It removes impurities and harmful bacterias present in c

  Of course!  How earth receives heat energy from sun? Here is answer for these two questions. Heat can transfer in vacuum space. In this article you may know how heat is transferred in vacuum space.   How earth receives heat energy from sun? First we should understand the modes of heat transfer. There are three modes available to transfer heat. They are, Heat conduction, Heat convection and radiation. Let's see one by one.   Heat conduction In heat conduction mode of heat transfer heat is transferred by means of molecules present in the object. In this mode, energy will be transferred among the molecules. Example: I am holding a metal bar in my hand. I am going to heat that. What will happen. The bar gets heat from the source. Unfortunately, I can feel heat transfer in another side which is hold by means of hand. There is no objects present in the space. So heat cannot transfer by  conduction mode in space.   Heat convection In this mode of heat transfer heat is tr

  What are alternative fuels? Alternative fuel refers to any type of fuel that is outside of the recognized traditional petroleum fuels.   Alternative fuels are also known as unconventional or advanced fuels The followings are some of alternative fuels •      Alcohols, e.g., ethanol and methanol. •      Biomass-based diesel fuels. Biodiesel (fatty acid methyl esters, FAME) ... •      Methane, e.g., natural gas, biogas and synthetic natural gas (SNG) •      Liquefied petroleum gas (LPG) •      Hydrogen. •      Synthetic fuels. •      Dimethyl ether (DME) and other heavier ethers. •      Ammonia. Need of alternative fuels •      Conventional fuels going to run out •      To reduce pollution •      To reduce waste •      To save money •      To protect global warming •      Fuel economy VARIOUS ALTERNATIVE FUELS ARE USED IN INTERNAL COMBUSTION ENGINES THEY ARE EXPLAINED BELOW ALCOHOL •          Various alcohols are used as fuel for internal combus