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What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient?
A heat engine can never be 100% efficient due to the second law of thermodynamics, which states that some heat energy will always be lost to the surroundings. The temperature required for maximum efficiency is the temperature of the heat source for the engine. The efficiency of a heat engine is determined by the temperature difference between the heat source and the environment.
What temperature is required to transfer waste heat to the environment for a heat engine to be a 100 percent efficient?
In order for a heat engine to be 100 percent efficient, the temperature of the cold reservoir where waste heat is transferred should be absolute zero (0 Kelvin). This is not achievable in practice, as it violates the second law of thermodynamics.
High air temperature reduces body's ability to lose heat by?
Increasing the gradient between body temperature and the surrounding environment, leading to less efficient heat transfer through convection and radiation.
What is the ambient temperature formula used to calculate the overall heat transfer in a given environment?
The formula used to calculate overall heat transfer in a given environment is Q U A T, where Q is the heat transfer rate, U is the overall heat transfer coefficient, A is the surface area, and T is the temperature difference between the object and the environment.
How would it be possible that there could be high temperature but no heat transfer?
High temperature doesn't necessarily indicate heat transfer if the surrounding environment is at a similar or lower temperature. Heat transfer occurs when there is a temperature difference between objects, causing energy to move from a higher temperature object to a lower temperature one. If the surroundings are not significantly cooler, there may be high temperature but minimal heat transfer.
What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient?
A heat engine can never be 100% efficient due to the second law of thermodynamics, which states that some heat energy will always be lost to the surroundings. The temperature required for maximum efficiency is the temperature of the heat source for the engine. The efficiency of a heat engine is determined by the temperature difference between the heat source and the environment.
What temperature is required to transfer waste heat to the environment for a heat engine to be a 100 percent efficient?
In order for a heat engine to be 100 percent efficient, the temperature of the cold reservoir where waste heat is transferred should be absolute zero (0 Kelvin). This is not achievable in practice, as it violates the second law of thermodynamics.
High air temperature reduces body's ability to lose heat by?
Increasing the gradient between body temperature and the surrounding environment, leading to less efficient heat transfer through convection and radiation.
What is the ambient temperature formula used to calculate the overall heat transfer in a given environment?
The formula used to calculate overall heat transfer in a given environment is Q U A T, where Q is the heat transfer rate, U is the overall heat transfer coefficient, A is the surface area, and T is the temperature difference between the object and the environment.
How does a heat pump air exchanger work to efficiently transfer heat between indoor and outdoor environments?
A heat pump air exchanger works by using a refrigerant to absorb heat from one environment (such as indoors) and release it in another environment (such as outdoors). This process is efficient because it uses the difference in temperature between the two environments to transfer heat effectively.
Why is the transfer of energy and matter in a food chain only about 10 efficient?
Because 90% is released into the environment asheat...............i think..............
How would it be possible that there could be high temperature but no heat transfer?
High temperature doesn't necessarily indicate heat transfer if the surrounding environment is at a similar or lower temperature. Heat transfer occurs when there is a temperature difference between objects, causing energy to move from a higher temperature object to a lower temperature one. If the surroundings are not significantly cooler, there may be high temperature but minimal heat transfer.
Why does mercury thermometer have a bulb if very thin glass wall?
The bulb of a mercury thermometer is designed to contain a small volume of mercury that expands and contracts with temperature changes. The thin glass wall allows for efficient heat transfer between the bulb and the surrounding environment, ensuring accurate temperature measurements.
How does thermal coupling affect the efficiency of a heater?
Thermal coupling refers to the transfer of heat between different components of a system. In the context of a heater, efficient thermal coupling ensures that heat is effectively transferred from the heating element to the surrounding environment. Poor thermal coupling can result in heat loss and reduced efficiency of the heater, as more energy is required to maintain the desired temperature.
What are the advantages of a integral furnace?
the water wall are more efficient for heat transfer, no refractory is required allowing the furbace to be smaller for the same output
What is required for heat transfer by radiation?
For heat transfer by radiation, no medium is required. It can occur through a vacuum because it involves the transfer of electromagnetic waves, such as infrared radiation, from a hotter object to a cooler one. The rate of radiation heat transfer depends on the temperature difference between the objects and their surface properties.
Why is the rate of heat transfer greater in the fridge Rather than the freezer?
The rate of heat transfer is greater in the fridge compared to the freezer because the temperature difference is typically smaller between the inside of the fridge and the outside environment than the temperature difference between the freezer and the outside. Heat transfer is directly proportional to the temperature difference, so a smaller temperature difference in the fridge leads to a higher rate of heat transfer.
