14 uppsatser
Med hjälp av FDS 6 HVAC- funktion
… är ett simuleringsprogram som genom utgåva sex kommit med en tilläggsfunktion, HVAC (Heating, Ventilation, and Air Conditioning) där naturlig- och mekanisk ventilation kan simuleras med hjälp av ett system byggt av noder (nodes) och kanaler (ducts). Funktionen tillåter även att …
Klimatprovning i klimatvindtunneln CD7
The issue about how Scania shall perform HVAC tests in the climatic wind tunnel CD7, which Scania is about to complete by year 2013, has resulted in four test methods for truck HVAC and also a test method structure. The test methods have been chosen to focus on sun, snow and …
- Klimatprovning i vindtunneln CD7
I detta examensarbetet undersöks hur provningen av HVAC på lastbilar skall utföras i klimatvindtunneln CD7 som Scania färdigställer till år 2013. HVAC omfattar kupéuppvärmning, ventilation samt AC och har därmed en stor betydelse för klimatkomforten inne i lastbilshytten. Med …
… towards BIM is to be able to change and revise Water and Sewage 3D-models with HVAC 3D-models, and to be able to detect possible errors in the connection nodes early in the designing stage. In this thesis work, a CAD-model has been created in Novapoint VA, the CAD software used …
… thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of …
… thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of …
… urladdningar (kallad PD från engelska benämningen Partial Disharge) i HVAC- och HVDC- högspänningskablar. HVAC står för ”High Voltage Alternative Current” och HVDC står för ”High Voltage Direct Current”. När en viss hög spänningsnivå överskrids i kabeln uppstår olika typer av …
<em>HVAC</em>-systemets outnyttjade resurs
Det är sedan tidigare allmänt känt att när temperaturen sänks på luft med en hög luftfuktighet så fälls det ut kondenserat vatten som en restprodukt. Ombord på stora kryssningsfartyg med många passagerare så är behovet av att kyla luften stort på grund av att passagerarna vill …
… good thermal comfort. Limitations in operation control of the buildings HVAC (Heating, Cooling and Air-conditioning) systems causes high heating and cooling demand and hence the buildings thermal mass is not properly utilized. Energy saving measures was mainly focused on …
… occurring between the fluid and the pipe wall. The recommendation given in HVAC installations states that two 90 degree elbows should not be placed closer to each other than 6D (D representing the hydraulic diameter of the pipe) to thereby prevent large pressure drops. This …
Planet rendering plays an important role in universe visualization and geographic visualization. The recent tools and methods allow better data acquisition, usually with very high resolution. However in computer graphics, there is always the limitation on the resolution of …
… Helenius Engineering Firm who is working with the environment, media systems, HVAC and energy in buildings. The building that has been studied is owned and operated by Akademiska hus. Literature studies, visits at site, inventory, review of system documentation, energy analyses …
En beskrivning av energieffektiva åtgärder i flerbostadshus och dess lönsamhet
… companies work with energy efficiency measures in the building envelope, HVAC , household and residential electricity and solar energy. The companies have chosen to implement various extensive measures and outcome measures differ between objects of different conditions. Also the …
Potential för utnyttjande i kontorsrum
… natural ventilation instead of mechanical ventilation among architects and HVAC consultants in recent years. This is due to the size of mechanical ventilation systems, which are space consuming. The mechanical ventilation system is also complex and requires maintenance …
