Essays about: "ground heat exchange"

Showing result 1 - 5 of 14 essays containing the words ground heat exchange.

  1. 1. Spatial downscaling of gridded soil moisture products using optical and thermal satellite data: the effects of using different vegetation indices

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Tómas Halldórsson Alexander; [2023]
    Keywords : Physical Geography and Ecosystem Analysis; Remote Sensing; Soil moisture; Downscaling; Vegetation index; Earth and Environmental Sciences;

    Abstract : Soil moisture (SM) plays an important role in the exchange of heat and water between the surface and atmosphere, impacting water and energy cycles and the climate. Satellite remote sensing offers a global-scale estimation of SM; however, the coarse resolutions of satellite SM products, typically ranging from 25-50 km, are unsuitable for regional analysis. READ MORE

  3. 2. Trädens växtplats i staden : jämförelse mellan två växtbäddsystem med fokus på konstruktion och tillväxt

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Johanna Pantulin Nordlund; [2023]
    Keywords : stadsträd; klimatanpassning; markförhållanden; strukturell jord; skelettjord; Stockholm; strukturella system; plastceller; växtceller; Milford;

    Abstract : Extrema väderförhållanden blir allt vanligare på grund av klimatförändringarna vilket leder till ökade risker för värmeböljor, skyfall och torka. Samtidigt växer världens städer och fler människor flyttar in till mer urbana miljöer. För att klara ett förändrat klimat behöver städerna anpassas. READ MORE

  4. 3. An Investigation of Methods for Flow Measurements in a Gasketed Plate Heat Exchanger for Predictive Maintenance

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Viktor Ekström; [2022]
    Keywords : gasketed plate heat exchanger; electrical measurements; sensors; predictive maintenance; machine learning; Technology and Engineering;

    Abstract : For a company to stay relevant in the long term, it is essential to keep up with the latest technology and continuously consider new innovative solutions for improving products and services. The gasketed plate heat exchanger (GPHE) is a mechanical device, and this work attempts to investigate different possibilities for incorporating sensor devices and predictive maintenance systems to improve the device. READ MORE

  5. 4. Energy balance closure, water balance, carbon exchange, and water use efficiency : observed and modeled outcomes for a managed, hemiboreal forest in Southern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Linsey Marie Avila; [2019]
    Keywords : Energy balance; energy balance closure; energy balance ratio; net radiation; sensible heat; latent heat; turbulent fluxes; ground heat flux; energy storage; available energy; Bowen ratio; evaporative fraction; latent heat of vaporization; water balance; evapotranspiration; precipitation; water storage; water discharge; gross primary production; ecosystem respiration; net ecosystem production; carbon exchange; water use efficiency; Earth and Environmental Sciences;

    Abstract : The claims for the potential of boreal and sub-boreal forests to combat negative effects of climate change have been substantial with over half of Earth’s primary forests found within boreal and temperate regions of the Northern Hemisphere. Given the likely occurrence of more extreme climate events in the future, ascertaining a better understanding of how climate effects, such as profound fluctuations in precipitation, decreases in yearly snow, faster snow melt rates, variability in evapotranspiration due to environmental stress, and related changes in the energy, hydrological, and carbon cycles will change these northern, boreal landscapes is crucial. READ MORE

  6. 5. Analysis of the energy exchange between atmosphere and ground using the compressible Navier-Stokes equations and the heat equation

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Fredrik Laurén; [2016]
    Keywords : ;

    Abstract : In this paper the interface between the one dimensional compressible Navier-Stokes equation and the heat equation is analysed. For the linearized and symmetrized model, the energy method is used to derive interface conditions that bounds the solution. READ MORE