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Your search keyword '"Bujok, Petr"' showing total 2 results
2 results on '"Bujok, Petr"'

1. THE CONSTRUCTION OF „BOREHOLE THERMAL ENERGY STORAGE” IN MIOCENE ROCKS ON LOCALITY OF GREEN GAS DPB, A.S. IN PASKOV (CZECH REPUBLIC).

Author

Klempa, Martin, Rozehnal, Zdenek, Porzer, Michal, Bujok, Petr, Grycz, David, and Pytlyk, Adam

Subjects
HEAT storage, GEOTHERMAL resources, BOREHOLES, RENEWABLE energy sources, ENERGY industries
Abstract

Real Borehole Thermal Energy Storage (BTES) was built under the support of grant project "Using Geothermal Energy for Renewable Energy Sources Systems Including Verification of Energy Accumulation" founded by Technology Agency of Czech Republic. New research BTES polygon in Paskov (Czech Republic) consist of 16 energy boreholes (each 60 m deep), 5 monitoring boreholes (each 15 m deep) and 1 central monitoring borehole (80 m deep). BTES is heated with hot water from CHP unit at temperatures up to 95°C. Rock temperature is measured by sensors in monitoring boreholes situated at different depth levels. The temperature of the fluid in the boreholes is measured by contact sensors which are all ways placed before the first borehole in the series between boreholes in the series and after the output from second borehole. This article will describe experiences from construction and research of storage and explore of heat in the BTES. [ABSTRACT FROM AUTHOR]

Published
2014

2. Assessment of the influence of shortening the duration of TRT (thermal response test) on the precision of measured values.

Author

Bujok, Petr, Grycz, David, Klempa, Martin, Kunz, Antonín, Porzer, Michal, Pytlik, Adam, Rozehnal, Zdeněk, and Vojčinák, Petr

Subjects
*HEAT storage, *EDIBLE fats & oils, *TEMPERATURE measurements, *BOREHOLES, *COMPUTER simulation, *ROCKS
Abstract

Abstract: In this paper the results of testing thermal parameters of the rock environment and measurement of borehole temperature profiles of the newly constructed experimental underground heat storage (BTES (Borehole Thermal Energy Storage)) in Paskov (Czech Republic) obtained with the TRT (thermal response method) and temperature measurement on boreholes at selected depth levels are summarised. The TRT measurement series on eight boreholes has shown the possibility to compare the differences among individual measurements in a practically identical rock environment. The temperature profiling of boreholes enabled studying the dynamics of temperature changes occurring in the rock environment as a reaction to the heat supply during the TRT. The measurement series was performed with the aim to assess the possibility of shortening the TRT duration while maintaining the acceptable precision of the measured results. For this reason the software simulation of shortening the TRT duration to 24 h was performed, and the influence of such shortening to the precision of determination of values and was studied. The simulation has shown that shortening the test to 24 h in our case would have brought an acceptable amount of inaccuracy with regard to the dispersion of measured values obtained from the real test. [Copyright &y& Elsevier]

Published
2014
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