Showing 1 - 9 of 9
Biomass pyrolysis is usually characterized on the basis of temperature and heating rate. Unfortunately, these … present paper points out the significant mistakes that can be made when assuming that the actual temperature and heating rate … two parameters are underlined in both cases of a heat source temperature supposed to be constant or to increase with time. …
Persistent link: https://www.econbiz.de/10010668085
determine the maximum OLR that would maintain a balanced microbial ecosystem during operation in a variable temperature range … a decrease in temperature. The structure of the archaeal community in the sour digesters became increasingly similar to …. Recommendations for operating an ambient temperature digester year round in a temperate climate are to reduce the OLR to at least 0 …
Persistent link: https://www.econbiz.de/10011030761
of temperature and residence time on the chemical composition. Process conditions for miscanthus and white oak sawdust … volatile content of the samples with respect to torrefaction temperature and time have adequately described the changes in …
Persistent link: https://www.econbiz.de/10011030784
ions and temperature. Pressure drop across the gel accelerates syneresis; however, the gel appeared to remain intact …%, for example, at a pH of 10.3 and a temperature of 20 °C, gel strength almost tripled and was reached about eight times …
Persistent link: https://www.econbiz.de/10011030988
in this study used a test bench to examine the power performance and pressure/temperature variations of the compressed … process, restricting the power output of the compressed air engine. The pressure and temperature variation of the air at …-cycle engine). A temperature decrease (from room temperature to 17 °C) inside the cylinder was observed. It should be noted that …
Persistent link: https://www.econbiz.de/10011030996
This paper addresses alkaline sodium silicate (Na-silicate) behavior in porous media. One of the advantages of the Na-silicate system is its water-like injectivity during the placement stage. Mixing Na-silicate with saline water results in metal silicate precipitation as well as immediate...
Persistent link: https://www.econbiz.de/10011031033
It is customary, for convenience, to use relative permeability data produced at room temperature. This paper shows that … this practice underestimates oil recovery rates and ultimate recovery from chalk rocks for high temperature reservoirs …. Above a certain temperature (80°C in this work) a reduction of oil recovery was observed. The reduction in oil recovery is …
Persistent link: https://www.econbiz.de/10011031088
different temperature conditions. The system has been characterized for an aerosol inlet temperature range of 20–190 °C, flow … velocities of 0–20 ms<sup>−1</sup>, and an impaction surface temperature range of 20–140 °C. For the first time, while keeping … the same temperature gradient from the high- to low-temperature regions, the influences of varying temperature on the …
Persistent link: https://www.econbiz.de/10011031406
of a micro-ORC rotary vane expander under variable heat source temperature conditions. The main objective of this … temperature. A series of experiments was performed using the micropower ORC test-stand. Results of these experiments are presented … the output power of multivane expanders depend on the heat source temperature, and that multivane expanders are cheap …
Persistent link: https://www.econbiz.de/10011265954