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Why are temperatures near the Great Lakes cooler in the summer than temperatures a few miles away?
The lakes have a high specific heat capacity.Answer:Air passing over the lakes becomes moister from evaporation. This evaporation of water requires heat which is absorbed from the air. As a consequence the air becomes cooler.
What is the heat capacity of silicon dioxide?
Heat capacity is a function of temperature so there is no single value that is valid at all temperatures. That said, The heat capacity ranges from about 680 to about 730 J/kg·K. If you just estimate it as 700 J/kg·K you won't be far off.
What are 5 words that describe heat?
Five words that describe heat are: intense, radiant, energetic, warming, and transformative. These words capture the various aspects of heat, from its ability to raise temperatures to its role in physical and chemical changes. Heat can be felt, measured, and harnessed in numerous ways, influencing both natural and man-made processes.
What are the properties of ceramic?
you can get them in all sorts of colours. mainly brown. hope it helped :)
Would stained glass melt if used in a firescreen?
Stained glass is not designed to withstand high temperatures and could potentially crack or shatter if exposed to direct heat from a fire. While it may not "melt" in the traditional sense, the heat could cause it to deform or become damaged. For safety and durability, it's better to use materials specifically designed for high-heat applications in a firescreen.
How does a heat pump operate efficiently below freezing temperatures?
A heat pump operates efficiently below freezing temperatures by using a backup heating system, such as electric resistance heating, to provide additional heat when the outside air is too cold for the heat pump to extract enough heat. This allows the heat pump to continue operating efficiently and effectively in cold weather.
How do engines lose energy to the environment?
Mainly through the relatively low thermodynamic efficiency of heat engines (petrol, diesel, steam turbines, gas turbines), which waste at least 50% of the chemical energy of the fuel. Engineers know that the efficiency is set by the upper and lower temperatures of the working fluid in the engine. They also understand the limitations of the materials available to make machines, which place limits on the temperatures and pressures that can be used.
What is The fundamental requirements of materials which used as coolant?
high heat capacity... fluid at normal operating temperatures... not damaging to the material it is circulating through... affordable...
Why do engines get discolored?
engines get discolored because of the heat . the heat comes from combustion from gass and air
What is the Carnot engine problem and how does it relate to the efficiency of a heat engine?
The Carnot engine problem refers to the theoretical limit on the efficiency of heat engines, as described by the Carnot cycle. This problem highlights that no real heat engine can be 100 efficient, as some energy is always lost as heat. The efficiency of a heat engine is limited by the Carnot efficiency, which depends on the temperatures of the heat source and sink. This concept helps engineers understand and improve the efficiency of real-world heat engines.
What are typical heat rates for GE Jenbacher natural gas engines?
Typical heat rates for GE Jenbacher natural gas engines generally range from 9,000 to 10,500 BTU/kWh, depending on the specific model and operating conditions. These engines are designed for efficiency and can achieve electrical efficiencies of around 40% to 45%. Factors such as load, ambient temperature, and engine configuration can also influence the heat rate. Overall, GE Jenbacher engines are recognized for their relatively high efficiency in converting natural gas into electrical power.
Does heat engines use heat to do work?
by engine
Does car works on heat produced by petrol when it is burnt?
Yes. Gasoline and diesel engines are both heat engines.
Heat engines use heat to do work?
Yes. Heat engines come in various forms. For example, internal combustion using gasoline or diesel, external combustion (not much used), steam engines reciprocating or turbine, gas turbines, rocket engines.
How are heat engines classified?
heat engines are classified on the location of the combustion chamber , if it is outside the whole set up then it is external heat engine and vice versa.
Is a engine in a car the same as a heat engine?
A car engine is a heat engine, but there are various types of heat engines outside the realm of car and truck engines.
Are refrigerators and air conditioners examples of heat engines?
No, refrigerators and air conditioners are not examples of heat engines. Heat engines typically convert heat into mechanical work, while refrigerators and air conditioners transfer heat from one location to another using a refrigeration cycle.
