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NTNU Open
Bachelor thesis . 2025
Data sources: NTNU Open
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Komparativ analyse av inneklimaet i to klatrehaller med ulike ventilasjonssystemer

Authors: Tveit, Erlend Størdal;

Komparativ analyse av inneklimaet i to klatrehaller med ulike ventilasjonssystemer

Abstract

Formålet med dette prosjektet har vært å undersøke og sammenligne inneklimaet i buldrerommene ved klatresentrene Grip Sluppen og Grip Leangen i Trondheim. De to rommene har ulike ventilasjonsløsninger, og studien har sett på hvordan dette påvirker CO2, temperatur, luftfuktighet og svevestøv. Undersøkelsen ble gjennomført med både manuelle målinger og fastmonterte sensorer, samt en spørreundersøkelse blant brukerne. Resultatene viser at Grip Sluppen i større grad klarer å holde CO2 nivåene under anbefalt grenseverdi, trolig på grunn av kontinuerlig tilluft fra friskluft og muligheten for ventilering med vinduer. Begge buldrerommene sliter med å holde ønsket temperatur på 19 grader når det er høy belastning og halvparten av brukere som svarte på spørreundersøkelsen opplever at det er noe for varmt der. Den relative fuktigheten i begge rommene er innenfor krav og ser ut til å følge samme trender som uteluft. Når det gjelder svevestøv viser begge hallene høye nivåer ved personbelastning. Det var ikke mulig å identifisere at luftstrømmene i det ene buldrerommet transporterte mer støv til avtrekk enn det andre rommet, men det viser seg å være god omrøring i begge rom. Spørreundersøkelsen som ble gjennomført viser at det er mange som opplever at luften i begge hallene er tung og tåkete, og mange har opplevd følelsen av dårlig ventilasjon. Nær halvparten av brukerne i egge hallene hadde også opplevd ulike symptomer som tung i hodet, irritert nese og øyne og tørr hals eller hoste. Prosjektet viser at det fortsatt kan være utfordringer knyttet til innregulering og tilpasning av ventilasjonssystemer i klatrehaller, særlig på grunn av den varierende personbelastningen og store mengder svevestøv som genereres i korte, intense perioder. Det er behov for videre undersøkelser, blant annet knyttet til faktisk tilført luftmengde, for bedre å kunne identifisere problemer og mulige løsninger.

The purpose of this project has been to investigate and compare the indoor climate in the bouldering rooms at the climbing centers Grip Sluppen and Grip Leangen in Trondheim. The two rooms use different ventilation systems, and the study examines how these affect parameters such as CO2, temperature, humidity, and airborne particulate matter. The investigation was conducted using both manual measurements and fixed sensors, along with a user survey. The results show that Grip Sluppen is better able to keep CO2 levels below the recommended threshold, likely due to continuous supply of fresh air and the possibility of window ventilation. Both bouldering rooms struggle to maintain the desired temperature of 19 degrees Celsius during peak hours, and about half of the survey respondents reported that the rooms feel somewhat too warm. The relative humidity in both spaces is within acceptable limits and appears to follow the same trends as the outdoor climate. Regarding airborne dust, both halls showed high levels during peak hours. It was not possible to determine whether airflows in one room transported more dust towards the exhaust air outlet than the other, but both rooms demonstrated good air circulation. The user survey revealed that many people experience the air in both halls as heavy and hazy, and many reported a perception of poor ventilation. Nearly half of the users in both locations also reported having experienced symptoms such as headaches, nasal or eye irritation, dry throat, or coughing. The project indicates that challenges remain in the balancing and adjustment of ventilation systems in climbing halls, especially due to fluctuating occupancy and large amounts of airborne dust generated during short, intense periods. Further investigation is needed, particularly regarding the actual volume of supplied air to better identify issues and possible solutions.

Country
Norway
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green