Sökning: "plate optimization"

Visar resultat 1 - 5 av 60 uppsatser innehållade orden plate optimization.

  1. 1. An Evaluation Study of Leak Testing Technologies for Watertight Plate Heat Exchangers : Fast and sustainable leak testing technology for high energy efficiency products

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för matematik och naturvetenskap

    Författare :Fritjof Nilsson; Yanjun Peng; [2023]
    Nyckelord :Leak rate; Optimization; Pressure Decay; Vacuum Technology; Volume; Läckhastighet; Optimering; Tryckfall; Vakuum Teknologi; Volym;

    Sammanfattning : Background: One part of manufacturing a Plate Heat Exchanger (PHE) is to leak test them before delivery. Today, helium is used extensively in leak testing. How-ever, it is unsustainable to use helium in leak testing, because of its non-renewability and therefore becoming more and more expensive. Also, this technology is relatively complex. LÄS MER

  3. 2. Ventilation for reduced indoor spread of Covid 19 and similar diseases : A literature review focusing on hospital environments

    Master-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Cyrus Ourak Pour; [2023]
    Nyckelord :COVID-19; SARS-CoV-2; Ventilation system; Mixing ventilation MV ; Displacement ventilation DV ; Under floor air distribution UFAD ; Ultraviolet light UV ; HEPA filter; COVID-19; SARS-CoV-2; Ventilationssystem; Blandningsventilation; Deplacementventilation; Luftfördelning under golv; Ultraviolett ljus; HEPA-filter;

    Sammanfattning : Today, a significant portion of individuals’ time is spent indoors, estimated at approximately 90% of their total time. This raises concerns about the transmission of Coronavirus Disease 2019 (COVID-19) instigating Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and similar viruses and highlights the critical role of ventilation systems in indoor environments, which this study aims to investigate. LÄS MER

  4. 3. The Development and Testing of Low-Cost Heat Transfer Enhancements for Solar Dryers

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Hoda Mahmoodi; [2023]
    Nyckelord :Solar dryer; Bhutan; Drying rate; Solar absorber; Technology and Engineering;

    Sammanfattning : In the mountainous regions of Bhutan and Nepal, post-harvest losses cause significant challenges for producers. Open air sun drying is usually used by farmers to preserve their produce. There are many disadvantages to this method. LÄS MER

  5. 4. Investigation and evaluation of optical distance sensors

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Signaler och system

    Författare :Olof Wigzell; [2022]
    Nyckelord :optics; radiometry; senssor; microcontroller; irradiance; circuit design; calibration; validation;

    Sammanfattning : Optical sensors are among the sensors that are often used for distance measurements. An optical distance sensor is basically made of a light emitter (Tx) such as a light emitting diode (LED), a light receiver (Rx) such as a photosensitive transistor, and a circuit supporting the operation of the Tx and Rx. LÄS MER

  7. 5. Weld joint optimization of an A-stay, of a critical component : Analysis of Volvo CE A60H articulated hauler front bogie

    M1-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :Dan Nguyen; [2022]
    Nyckelord :Weld joint optimization; FEA; Weld; Soli; Svetsoptimering; FEA; Hållfasthet; Svets;

    Sammanfattning : Volvo Construction Equipment (VCE) has invested in an advanced lasermachine that can cut sheet metal parts with angled edges. As a result, thedevice provides expanded possibilities in the design and production of sheetmetal products.The material cost component is significant in the production of sheet metalproducts. LÄS MER