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What is the difference between a condensing central heating boiler and a combination boiler?
A combination boiler can use one of two different fuels to heat the water. Common combinations include natural gas/propane and oil, or wood and oil combinations. A condensing boiler uses a secondary heat exchanger to condense water vapour (steam) in the products of combustion down to water. Here's what that means: When any hydrocarbon (gas, propane, oil, even wood) burns, it gives off at least two "products of combustion. The carbon combines with oxygen to create CO2, carbon dioxide. The hydrogen combines with oxygen to create water vapour, or steam. (If combustion is "incomplete," there will be other trace products as well.) It's the water vapour or steam we're concerned with here. To boil 1 pound of water requires 960 BTUs of heat. Conversely, if you condense steam down into 1 pound of water, you will recover 960 BTUs. The fuel is burned in the "primary heat exchanger," where of course it releases a tremendous amount of heat into the water we're warming up. Then the "products of combustion" are drawn by a fan into the "secondary heat exchanger." When the water vapour or steam component of the products of combustion hits the relatively cool walls of this second heat exchanger, they condense down into liquid water. As they do, they release heat into the boiler water through the walls of the secondary exchanger. The liquid water then goes down a drain. Obviously, the boiler water has to be cooler than the steam component of the products of combustion in order for the heat to travel into it. So we make sure that this water is what's coming back to the boiler from the heating system. Again, for this method to work well, it's best applied in a "radiant in-floor" type heating system, where we don't heat the boiler water up to as high a temperature in the first place. --The HVAC Veteran
Is the furnace an internal or external combustion engine?
An ordinary furnace is not an engine at all, because it does not directly cause mechanical motion. The heat or expanding gases released in a furnace can be used to drive an engine, but that is a separate component from the furnace. If a furnace is used in this manner, the engine is an external combustion engine.
what is a heater an internal combustion engine or a external combustion engine?
A heater can be either an internal combustion engine or an external combustion engine, depending on its design and operation. Internal combustion engines generate heat through the combustion of fuel within the engine itself, while external combustion engines produce heat by burning fuel outside the engine to heat a working fluid. Common examples of heaters include furnaces (external combustion) and car engines (internal combustion). The specific classification depends on how and where the combustion occurs in relation to the heat-producing mechanism.
What are the two types of heat engines?
internal and external combustion engine
What are examples of heat engines?
internal and external combustion engine
What component that transfers heat from the products of combustion to circulated air?
The component that transfers heat from the products of combustion to circulated air is known as a heat exchanger. In heating systems, such as furnaces or boilers, the heat exchanger absorbs heat from the combustion gases and then transfers that heat to the air or water being circulated throughout the space. This process helps to efficiently warm the living area while allowing the combustion byproducts to exit safely.
What component transfers heat from the products of combustion to circulated air?
The component that transfers heat from the products of combustion to circulated air is called a heat exchanger. In a furnace or boiler system, the heat exchanger allows the hot gases produced during combustion to pass through its surfaces, transferring their heat to the air that is then circulated throughout the living space. This process efficiently warms the air without mixing it with combustion gases.
What component transfers the heat from the products of combustion to the room air .?
this is called a heat exchanger with an open campfire it may not be a physical object with an electric heater it may be miles away at a power plant
What component transfers the heat from the products of combustion to the room air?
this is called a heat exchanger with an open campfire it may not be a physical object with an electric heater it may be miles away at a power plant
What component of air which is need for combustion?
Oxygen is the component of air needed for combustion to occur. It reacts with the fuel in the presence of heat to produce energy in the form of heat and light.
What are the three products of combustion?
heat, smoke, toxic gases
What is an aluminum extruded heat sink?
A heat sink is a device or fixture that transfers heat from a component, such as the CPU or processor, it acts like a radiator in which it transfers the heat into the air. Aluminum is shaped by the extrusion process which is like squeezing tooth paste out of a tube.
What are component of boiler?
Boilers consist of several key components, including the burner, which ignites fuel to generate heat, and the heat exchanger, where heat transfers to water or steam. Other essential components include the combustion chamber, where fuel combustion occurs, and the feedwater system, which supplies water to the boiler. Additionally, safety devices like pressure relief valves and controls for monitoring and regulating temperature and pressure are crucial for safe operation.
What are two ways heat can be involved in chemical change?
heat can be one of the products as in a combustion reaction and it can be used as a catalyst
What are the two products made during the complete combustion?
Mainly CO2 and H2O - Carbon Dioxide and Water. (Also heat, depending on if you are including it or not.) This can also be shown as an equation: Fuel + Oxygen → Carbon Dioxide + Water (and heat)
What are all the products of a hydrocarbon combustion reaction?
Carbon dioxide, Water Vapor, and Heat
What products are produced in a complete combustion of natural gas?
The products produced in a complete combustion of natural gas are carbon dioxide (CO2) and water (H2O). This process releases energy in the form of heat and light.
