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Science, 2019
Industrial Catalysis Large-scale production of hydrogen through steam reforming directly produces CO2 as a side product. In addition, the heating of reactors through fossil-fuel burning contributes further CO2 emissions. One problem is that the catalyst bed is heated unevenly, which renders much of the catalyst effectively inactive.
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Industrial Catalysis Large-scale production of hydrogen through steam reforming directly produces CO2 as a side product. In addition, the heating of reactors through fossil-fuel burning contributes further CO2 emissions. One problem is that the catalyst bed is heated unevenly, which renders much of the catalyst effectively inactive.
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Relativistic heat engines and efficiency
Physics Letters A, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Efficient Calculation of Heats of Formation
The Journal of Physical Chemistry A, 2009An efficient procedure has been devised for calculating heats of formation of uncharged, closed-shell molecules comprising H, C, N, O, F, S, Cl, and Br. Known as T1, it follows the G3(MP2) recipe, by substituting an HF/6-31G* for the MP2/6-31G* geometry, eliminating both the HF/6-31G* frequency and QCISD(T)/6-31G* energy and approximating the MP2 ...
W S, Ohlinger +3 more
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Reflux heat pipes as components in heat exchangers for efficient heat recovery
Journal of Heat Recovery Systems, 1980With the r&d work carried out an attempt was made to obtain performance data to subsequently generate analysis and design tools for gravity-supported heat pipes (reflux heat pipes) and thermosyphons. With an extended experimental program the performance limitation of screen-wick heat pipes has been determined as a function of various heat pipe ...
M. Groll, H. Nguyen-Chi, H. Krähling
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Thermal efficiency of manifold-heat-pipe heat exchangers
Journal of Engineering Physics and Thermophysics, 1994The thermal efficiency of manifold-heat-pipe heat exchangers is considered. A method for predicting the efficiency and an analysis of effects of various factors of the actual process are presented.
S. V. Konev, null Van Tsinlian
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Heat transfer efficiency of range units
Electrical Engineering, 1937Surface units of electric ranges have various efficiencies of heat transfer according to the design of the unit. Results of a study made with bright- and black-bottomed utensils are reported in this prize-winning student paper.
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High efficiency heating method for subsea pipelines heating
2011 Record of Conference Papers Industry Applications Society 58th Annual IEEE Petroleum and Chemical Industry Conference (PCIC), 2011Due to the harsh conditions sub-sea flow lines are exposed, they are subject to clogging by hydrates. Up to now, sub-sea pipeline heating was mainly used for purpose of preservation in case of production shutdown to prevent this pipe clogging. Access to more complex fields with lower quality of oil or longer distances of transfer to process plant ...
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Heating Boiler System Efficiency Analysis
Applied Mechanics and Materials, 2013This study applies thermal analysis and exergy analysis under a certain load of coal, oil and gas boiler energy loss of each part, it is concluded that the main energy loss in heat transfer process and exhaust process; And comparing the thermal efficiency and exergy efficiency, find that gas boiler efficiency is the highest, follow by oil burning ...
Ying Yong Duan +2 more
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Electric heating for high efficiency
Electronics and Power, 1984Britain has not been hit as hard as many countries by the oil crises since 1973 but it is still vital that British managers carefully consider all the available energy sources. Although electricity has a reputation for being expensive, its high utilisation efficiency means that for certain applications it is the most economical solution.
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