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Segrevanje prostora s človeškim telesom : diplomsko delo
Ančimer Aljaž, Katarina (Author), Golli, Bojan (Mentor) More about this mentor... This link opens in a new window, Bavdek, Gregor (Co-mentor)

URLURL - Presentation file, Visit http://pefprints.pef.uni-lj.si/id/eprint/3013 This link opens in a new window

Abstract
Znotraj človeškega telesa neprenehoma potekajo različnih biokemijske reakcije, pri katerih se sprošča toplota. Da se telo zaradi tega ne bi pregrelo, toploto oddaja v okolico. Če postavimo človeka v manjši prostor, po določenem času opazimo, da se temperatura v prostoru dvigne. V svojem diplomskem delu sem raziskala, kako se spreminja temperatura v prostoru, če se v njem nahaja človek. Ker sprememba temperature ni zelo izrazita, je bila večina poskusov narejena v zelo majhnem in idealiziranem prostoru, del poskusov pa v majhnem, bolj realnem prostoru. Ugotovila sem, da je dvig temperature na začetku večji, nato pa se postopoma zmanjšuje. Na segrevanje prostora vpliva več dejavnikov; na začetku je najbolj opazno segrevanje zraka v prostoru, nekoliko kasneje se opazi segrevanje predmetov v prostoru, še kasneje pa je opazno segrevanje sten. Do razlik prihaja zaradi različnih toplotnih kapacitet snovi. Poleg tega pa je tudi pomembna ugotovitev, da človek ne segreva prostora preprosto kot grelno telo, ki zgolj oddaja toploto okoliškemu zraku, pač pa ob približevanju temperature prostora telesni temperaturi vedno več toplote odda z izparevanjem vode s površine telesa, zaradi česar se okoliški zrak ne segreva, ampak postaja vedno bolj vlažen.

Language:Slovenian
Keywords:zrak, stene
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:PEF - Faculty of Education
Year:2015
Publisher:[K. Ančimer Aljaž]
Number of pages:38 str.
UDC:536.68(043.2)
COBISS.SI-ID:10689097 Link is opened in a new window
Views:901
Downloads:112
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Secondary language

Language:English
Title:Heat room by human body
Abstract:
Biochemical exothermic reactions are continuously happening inside the human body. In order to prevent overheating of the body, it releases excess heat into the environment. If we put a human in a small room, we will, after a certain amount of time, notice the rise of temperature in this room. In my diploma thesis I studied how the temperature in room is changing, in the presence of human. A part of the experiments were performed in a small, realistic room, but most of the experiments were performed in a very small and isolated room. I found out that the rising of the temperature was faster in the beginning and gradually got slower. Many factors contribute to the warming of the room; initially most noticeable is the warming of the air in the room, later on the warming of objects inside the room and even later also warming of the walls. Differences occurred because of the different heat capacities of the materials in the room of the experiment. Furthermore the significant finding is that the human body does not warm up a room as simple as a heating device, which only gives off heat to the surrounding air, but is giving off most of heat by vaporization of the water from the body’s surface, as the temperature of the air is approaching the temperature of the body’s surface. The air of the room is not increasing in temperature but in humidity due to vaporization.

Keywords:human body

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