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Found 5 essays matching the above criteria.

  1. 1. Olika filtermaterial vid jordbruksdränering

    University essay from SLU/Dept. of Soil and Environment

    Author : Hanna Falk; [2019]
    Keywords : dräneringsfilter; mineralfilter; organiska filter; syntetiska filter;

    Abstract : Drainage of arable land creates a better soil structure and a better aeration of the soil profile. Some fields are naturally drained, while others are dependent on drainage to create good cultivation conditions. Subsurface drainage is the most common method used to artificially drain arable land. READ MORE

  3. 2. Classification of leakage detections acquired by airborne thermography of district heating networks

    University essay from Datorseende; Tekniska högskolan

    Author : Amanda Berg; [2013]
    Keywords : Machine learning; remote sensing; infrared images;

    Abstract : In Sweden and many other northern countries, it is common for heat to be distributed to homes and industries through district heating networks. Such networks consist of pipes buried underground carrying hot water or steam with temperatures in the range of 90-150 C. Due to bad insulation or cracks, heat or water leakages might appear. READ MORE

  4. 3. Understanding numerically generated g-functions: A study case for a 6x6 borehole field

    University essay from KTH/Tillämpad termodynamik och kylteknik

    Author : Jesus Angel Perez Gonzalez; [2013]
    Keywords : borehole; heat exchangers; g-function; ground source heat pumps;

    Abstract : The Ground Source Heat Pump systems (GSHP) are an emerging technology used to exchange heat with the ground through the use of some buried heat exchangers. The thermal response of a borehole field can be characterized by its g-function. READ MORE

  5. 4. Sustainable Drainage and Surface Water Management in Xiamen, China

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Gunnar Olsson; [2011]
    Keywords : Sustainable urban drainage systems; SUDS; Xiamen; China; Stormwater; Technology and Engineering;

    Abstract : Sustainable urban drainage systems (SUDS) is a relatively new way of handling stormwater in urban environments. Originating in the late 1980’s, the concept has developed as an alternative to the traditional way of removing the urban water as quick as possible in pipes, buried underneath the ground. READ MORE

  6. 5. Dynamic amplification for moving vehicle loads on buried pipes : Evaluation of field-tests

    University essay from KTH/Bro- och stålbyggnad

    Author : Zana Smagina; [2001]
    Keywords : Buried pipes; impact factor; dynamic amplification factor; rolling wheel load; vehicular dynamic load; impact load; field test; surface roughness; cover depth; pipe stiffness;

    Abstract : .... READ MORE