Higher heating value is a way to measure how much heat we can get from a fuel. Just like how we can get heat from firewood or gasoline, different types of fuels can give us different amounts of heat. Higher heating value tells us how much heat we can get from one unit of fuel.
Think about it like this: If we have a piece of wood and a piece of coal, both the same size, and we burn them, we'll get more heat from the coal than from the wood. This is because coal has a higher heating value. It gives us more heat for the same amount of fuel.
Higher heating value is measured in units called BTUs (British Thermal Units). One BTU is the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit.
So, if we know the higher heating value of a fuel, we can figure out how much heat it will give off when we burn it. This can help us choose the best fuel for a particular job - for example, if we want to heat our home, we might choose a fuel with a high heating value so that we can get more heat from less fuel.
Overall, higher heating value is an important way to measure the energy content of different fuels and helps us make informed choices about how to use them.