Essays about: "air draught"

Showing result 1 - 5 of 8 essays containing the words air draught.

  1. 1. CFD Study of An Office Room Equipped with Corner Impinging Jet Ventilation

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Getiye Wodaje; [2022]
    Keywords : CFD in ventilaion; Thermal comfort; Impinging jet ventilation; thermally stratified flow; Corner impinging jet; Office air quality; Indoor environment; turbulent jet;

    Abstract : A CFD validation study was made using corner supplied impinging jet ventilation operating in cooling mode. The air distribution system has two equilateral triangle shaped inlets placed 80cm above the floor at the two that share a common wall. The supply air was introduced at 2.26m/s. READ MORE

  3. 2. CFD study of the different inlet configurations and airflows in a room with IJV

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Christos Stiapis; [2022]
    Keywords : Ventilation; CFD; Impinging Jet Ventilation;

    Abstract : A method of providing ventilation using impinging jets (IJV) utilizes stratification while delivering air at a high velocity. As a result of this attribute and the simplicity of its terminal construction, IJV offers an advantage over the well-known Displacement Ventilation (DV) system. READ MORE

  4. 3. A Fractional Step Zonal Model and Unstructured Mesh Generation Frame-work for Simulating Cabin Flows

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Sergi Tarroc Gil; [2021]
    Keywords : Zonal Model; Thermal Comfort; Fluid Simulation; Aircraft Cabin Design; NURBS; Morphing; Radial Basis Functions; Meshing; Co-located Mesh; Unstructured Mesh; Mesh Quality; Mesh Smoothing; Enlarged Orientation Theorem; Fractional Step Method; Boussinesq; Adam Bashforth; Helmholtz-Hodge Theorem; Rhie and Chow; Difference Schemes; Gradient Evaluation; Differential Heated Cavity; Driven Cavity; Draught Rate;

    Abstract : The simulation of physical systems in the early stages of conceptual designs has shown to be a key factor for adequate decision making and avoiding big and expensive issues downstream in engineering projects. In the case of aircraft cabin design, taking into account the thermal comfort of the passengers as well as the proper air circulation and renovation can make this difference. READ MORE

  5. 4. Evaluation of decentralized ventilation system with heat recovery

    University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Sunkavalli Kowshik Chowdary; [2020]
    Keywords : Decentralized ventilation; airflow; air draught; heat exchangers; tracer gas; Technology and Engineering;

    Abstract : Humans spend 90% of their times indoors, and maintaining a pleasant indoor environment is essential. Factors like human behaviour, combustion sources, cleaning supplies, affect the indoor environment, which could potentially affect the human health.the most common answer to controlling the indoor environment is a good HVAC system. READ MORE

  6. 5. Experimental investigation of ventilation performance of corner placed stratum ventilation in an office environment

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Gasper Choonya; [2019]
    Keywords : Stratum ventilation; local air change index; air change efficiency; ventilation effectiveness; draught rate; percentage dissatisfied; heat removal effectiveness;

    Abstract : Energy use in buildings account for about one third of the total global energy supply and contributes as much as 30% of the anthropogenic greenhouse gas emissions. It is estimated that energy use in buildings will increase to 67% by 2030. READ MORE