... 28 06 2019 18 06 2020 18 09 2020 ground heat transfer tower footing foundation line heat source inverse heat transfer method In some northern regions, the ground temperature remains nearly at or below 0 °C at a certain depth throughout two years or longer; the ground...

... temperature of T i . This assumption of constant values for ground thermal conductivity and thermal diffusivity is often used in analytical ground heat transfer modeling ( 23 24 ). The ground surface is assumed to have a time-varying temperature of T gs ( t ) . Defining...