Energy required per day for survival by an individual

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In summary, the conversation discusses the amount of energy required for an average individual's survival and the conversion to electrical equivalent. It is estimated that an individual needs 2000 calories per day, which is equivalent to 8.4 megajoules or 2.3 kilowatt hours. It is also mentioned that the average person burns energy at a rate of 100 watts per day, which is equivalent to 2.4 kilowatt hours.
  • #1
n.karthick
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I want to know how much energy is required by an average individual per day for his survival, assuming he is doing normal work. is there any rough estimate? (say some thousands of joules !). I like to know this rough value and I want to convert this is to electrical equivalent (i.e, in kWhr). In brief, assuming that a human can live by consuming only electricity, how much units (kWhr) is required for him every day?
 
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  • #2
Two thousand calories per day for an average person so: 2 kcal = 8.3736 kilojoules = 0.002326 kwhr

iron_john
 
  • #3
This is wrong. A food calorie is actually a kilocalorie. So it is actually 8.4 MJoules, or 2.3 kWh. You burn energy at about 100W - 100W * 24 Hr = 2.4 kWh.
 

What is the definition of "energy required per day for survival by an individual"?

The energy required per day for survival by an individual is the amount of energy needed to sustain basic bodily functions and maintain overall health and well-being. This includes energy for breathing, circulation, digestion, and other essential processes.

How is the energy required per day for survival by an individual calculated?

The energy required per day for survival by an individual is calculated based on factors such as age, gender, weight, height, physical activity levels, and overall health. The most common method used is the Harris-Benedict equation, which takes into account an individual's basal metabolic rate and activity level.

What is the average energy required per day for survival by an individual?

The average energy required per day for survival by an individual varies depending on factors such as age, gender, and physical activity levels. However, the general recommendation for adults is around 2,000-2,500 calories per day for men and 1,600-2,000 calories per day for women.

What happens if an individual does not consume enough energy to meet their daily requirement?

If an individual does not consume enough energy to meet their daily requirement, they may experience fatigue, weakness, and other symptoms of malnutrition. Over time, this can lead to serious health issues such as nutrient deficiencies, weakened immune system, and organ damage.

Are there any factors that can affect an individual's energy requirement per day for survival?

Yes, there are several factors that can affect an individual's energy requirement per day for survival. These include genetics, medical conditions, medications, pregnancy and breastfeeding, and environmental factors such as climate and altitude.

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