Essays about: "pressure losses"

Showing result 1 - 5 of 77 essays containing the words pressure losses.

  1. 1. Day Zero: Communicating the water crisis in Cape Town, 2015-2018 : A qualitative study about the communication during the water crisis and how the public responded to the messages

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Author : Fredrik Karlsson; [2020]
    Keywords : Water; water crisis; communication; South Africa; Day Zero; water use; Vatten; vattenkris; kommunikation; Sydafrika; Day Zero; vattenanvändning;

    Abstract : Stigande urbanisering och större befolkningar har ökat trycket på städer och deras förmågor att förse alla med de vardagstjänster som städerna vanligtvis har kapacitet att erbjuda. Att förse alla med dricksvatten är något som har blivit en utmaning då vattenanvändningen har stigit samtidigt som vattentillgången varierar beroende på nederbörd, och potentiellt minskat på grund av klimatförändringarna. READ MORE

  2. 2. Sound propagation modelling with applications to wind turbines

    University essay from KTH/Mekanik

    Author : Julius Fritzell; [2019]
    Keywords : Sound propagation; Wind turbines; Wave equation; Helmholtz equation; Fourier transform; Chebyshev polynomials.;

    Abstract : Wind power is a rapidly increasing resource of electrical power world-wide. With the increasing number of wind turbines installed one major concern is the noise they generate. Sometimes already built wind turbines have to be put down or down-regulated, when certain noise levels are exceeded, resulting in economical and environmental losses. READ MORE

  3. 3. Evaluation of a digitial displacement pump in a load haul dump application

    University essay from Linköpings universitet/Fluida och mekatroniska system

    Author : Jayasurya Madhusudanan; [2019]
    Keywords : Digital displacement pump; mine loader; energy efficiency; backward simulation; forward simulation; pump losses;

    Abstract : Hydraulics has always been the first choice of actuation in off-road, construction and mining vehicles due to its power density, low cost, built in cooling and lubrication. However, the current state of our environment along with stricter regulations has brought light to newer technologies within hydraulics to improve the existing system. READ MORE

  4. 4. Towards sustainable renovation of façades : A case study of additional double glass façade on lamella house from energy saving perspective

    University essay from KTH/Hållbara byggnader

    Author : Yang Shi; [2019]
    Keywords : renovation; façade; Million Programme; IDA ice; Trombe wall; double glass façade; sustainability;

    Abstract : The pace of development in modern society since the Industrial Revolution has beenunprecedented and it keeps proceeding in a more aggressive and accelerated phase. However, thisdevelopment is a highly energy demanded action which is resulting an increased exploitation ofnatural resources, and subsequently, an expanded pressure on our environment, which sometimesconflicts between proprietors. READ MORE

  5. 5. Energy efficiency in a renovated modern office with activity-based work style

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Jesper Olausson; [2019]
    Keywords : DCV; energy efficiency; Closed-loop duct; thermal insulation supply ducts; Air conditioning; underfloor heating; energy audit; behovsstyrd ventilation; energieffektivitet; ringmatad ventilation; isolering av tilluftskanaler; komfortkyla; golvvärme; miljöbyggnad; energikartläggning;

    Abstract : During renovation Ljusåret 2 was converted to a modern office with an activity based work style (ABW) with a Demand Controlled Volume (DCV) ventilation system connected to a closed-loop duct. Cooling is provided through air handling units and active water based beams, the underfloor heating system was kept. READ MORE