Thermodynamic analysis of cooling a human body
TJ265.L43 2013
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2024
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my.uniten.dspace-352212024-12-08T02:01:20Z Thermodynamic analysis of cooling a human body Lee Wei Yang Thermodynamics TJ265.L43 2013 The objective of the study is to determine the standard heat dissipation rates when performing different exercises under different ambient conditions. This is then used to calculate heat transfer rates in a human body based upon the author's own body surface area, age and other specifications like basal metabolic rates, height and weight. All kinds of ambient conditions are taken into account; like being outdoors with radiation from the sun or indoors with lesser radiation, or being in an air conditioned office with optimum convection to cool off the body and being at a still wind-less room with only free convection. The results of this study showed that optimum heat dissipation at an ambience of low temperature is mainly affected by strong forced convection followed by radiation. Likewise in an ambience of high temperature, strong forced convection will introduce faster heat gain compared to radiation. Results for evaporation of sweat from the skin is shown to be a heat dissipation mechanism that operates when the ambience is of high temperatures and helps to cool down the body but will be hindered if the surrounding humidity is high. Clothes also play an important role in the heat transfer of a human body. The amount of clothes and the type of clothes you put on will make you feel hotter or colder than the ambient temperature. The results of this study showed putting on more clothes which are thick and long will increase the clo value which will make you feel hotter than it actually is, and the opposite will happen when you have thinner and lesser clothes which decrease your clo value. This shows that clo is also somewhat like the degree of heat insulation that worn on the body. This study also discusses about several pieces of clothing for different functions and different body parts and how much clo value they each have. In this study the heat generation in the human body is also calculated by using the heat balance equation. By considering the heat from convection and radiation and heat released from respiration and sweat evaporation we can calculate the metabolic heat which is also the amount of heat required to be generated or produced to maintain the body temperature at 37°C. 2024-12-04T02:13:56Z 2024-12-04T02:13:56Z 2013 Resource Types::text::Final Year Project https://irepository.uniten.edu.my/handle/123456789/35221 en application/pdf |
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Universiti Tenaga Nasional |
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| language |
English |
| topic |
Thermodynamics |
| spellingShingle |
Thermodynamics Lee Wei Yang Thermodynamic analysis of cooling a human body |
| description |
TJ265.L43 2013 |
| format |
Resource Types::text::Final Year Project |
| author |
Lee Wei Yang |
| author_facet |
Lee Wei Yang |
| author_sort |
Lee Wei Yang |
| title |
Thermodynamic analysis of cooling a human body |
| title_short |
Thermodynamic analysis of cooling a human body |
| title_full |
Thermodynamic analysis of cooling a human body |
| title_fullStr |
Thermodynamic analysis of cooling a human body |
| title_full_unstemmed |
Thermodynamic analysis of cooling a human body |
| title_sort |
thermodynamic analysis of cooling a human body |
| publishDate |
2024 |
| _version_ |
1818838875476328448 |
| score |
13.22648 |