![]() ![]() Occurrences was sought by evaluating prior testing and modelling assumptions. In advance of predicted thermal breakthrough times. Historical operational data showed thermal fluctuations at an abstraction well ![]() Several studies have beenĬonducted into the testing and operational performance of an open-loop GSHS. Novel opportunity to provide key insights and learnings. In light of past design assumptions, modelling and testing practices, remains a Characterisation and analysis of an operational system, Might still be considered young in its GSHS-specific experience of testing, designĪnd modelling practises. Relatively rare compared to alternatives. The worldwide number of GSHS is increasing but they remain Open-loop ground source heating systems (GSHS) provide cooling and heating toĪ space with several positive sustainable and economical factors over fossil-fuelbased alternatives. The seasonal temperature cycle has been extrapolated accurately to several metres depth with site-specific thermal properties derived from the soil temperature measurements. A linear relation has been derived for the mean annual temperature at any non-urban UK locality, at 1 m depth. An average urban heat island (UHI) effect at 1 m depth of 0.55☌ has been observed at localities adjacent to urban green spaces, from which it can be assumed that the UHI effect will be greater in densely developed city and town centres. Mean annual temperatures at 1 m depth, reduced to sea level, range from 12.7☌ in southern England to 8.8☌ in northern Scotland, with corresponding seasonal ranges in temperature of 10.3☌ and 7.9☌ respectively. Soil temperatures from 106 Met Office weather stations, located across the UK, have been analysed from which mean annual, seasonal minimum and maximum, and daily minimum and maximum temperatures have been calculated. These collector loops and culverts are within the zone affected by the seasonal swing in temperatures. Accurate estimations of shallow ground temperatures are required when sizing the horizontal closed loops and air supply culverts of ground coupled heating and cooling systems. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |