Maciej Jaworski - Academia.edu (original) (raw)
Papers by Maciej Jaworski
Applied Thermal Engineering, 2014
The performance of a solar hot water installation may be dramatically improved by placing element... more The performance of a solar hot water installation may be dramatically improved by placing elements with substances which undergo phase changes accompanied by significant heat effects in the water tank. In this article the authors provide a mathematical description of a hot water installation with two storage media. The authors experimentally verified a mathematical model of a tank for a
A short overview of basic problems connected with high power laser radiation interaction with sol... more A short overview of basic problems connected with high power laser radiation interaction with solids is presented. Physical phenomena occurring during absorption of laser beam energy in solid, basic fields of application of lasers, and mathematical model of the conversion of light energy into heat are described. There are also many examples of numerically calculated temperature fields in solids caused by the interaction of laser radiation of different parameters (different power densities and interaction times), which are the results of investigation of the laser interaction with solids. These investigations have been conducted in the Institute of Heat Engineering for several years.
W pracy omówiono prostą metodę określania temperatury przejścia fazowego (topnienia) oraz stopnia... more W pracy omówiono prostą metodę określania temperatury przejścia fazowego (topnienia) oraz stopnia przechłodzenia w procesie krzepnięcia materiałów, które są rozważane jako czynniki robocze w układach akumulacji ciepła (materiały PCM). Przedstawiono również wyniki pomiarów wymienionych wielkości fizycznych dla wodnych roztworów glikolu etylenowego i propylenowego w zakresie stężeń od 0 do 30% (ułamek objętościowy).
Applied Thermal Engineering, 2014
The performance of a solar hot water installation may be dramatically improved by placing element... more The performance of a solar hot water installation may be dramatically improved by placing elements with substances which undergo phase changes accompanied by significant heat effects in the water tank. In this article the authors provide a mathematical description of a hot water installation with two storage media. The authors experimentally verified a mathematical model of a tank for a
A short overview of basic problems connected with high power laser radiation interaction with sol... more A short overview of basic problems connected with high power laser radiation interaction with solids is presented. Physical phenomena occurring during absorption of laser beam energy in solid, basic fields of application of lasers, and mathematical model of the conversion of light energy into heat are described. There are also many examples of numerically calculated temperature fields in solids caused by the interaction of laser radiation of different parameters (different power densities and interaction times), which are the results of investigation of the laser interaction with solids. These investigations have been conducted in the Institute of Heat Engineering for several years.
W pracy omówiono prostą metodę określania temperatury przejścia fazowego (topnienia) oraz stopnia... more W pracy omówiono prostą metodę określania temperatury przejścia fazowego (topnienia) oraz stopnia przechłodzenia w procesie krzepnięcia materiałów, które są rozważane jako czynniki robocze w układach akumulacji ciepła (materiały PCM). Przedstawiono również wyniki pomiarów wymienionych wielkości fizycznych dla wodnych roztworów glikolu etylenowego i propylenowego w zakresie stężeń od 0 do 30% (ułamek objętościowy).