Synthesis of NiMn2O4 assisted by high
... corresponds to the average of the temperature in all its elements, in the case of high-energy ball milling, the balls are hitting the powder and the temperature increases only at the impact sites, although the rest of the system might be unchanged. Reaction occurs only in those sites hit by hit. In ...
... corresponds to the average of the temperature in all its elements, in the case of high-energy ball milling, the balls are hitting the powder and the temperature increases only at the impact sites, although the rest of the system might be unchanged. Reaction occurs only in those sites hit by hit. In ...
Influence of coupled pinch point temperature difference and
... area of evaporator and condenser would change simultaneously. It means that the variation of the PPTD of the evaporator affects the area of not only evaporator but also condenser. The heat transfer areas corresponding to the maximum net power output are calculated at the given conditions shown in Ta ...
... area of evaporator and condenser would change simultaneously. It means that the variation of the PPTD of the evaporator affects the area of not only evaporator but also condenser. The heat transfer areas corresponding to the maximum net power output are calculated at the given conditions shown in Ta ...
2. Energy Balance of Buildings
... The invention of air-conditioning can be regarded as the invention with the most profound influence in tropical countries. Never before had it been possible to live in complete thermal comfort. Prior to the emergence space cooling units Malaysians were obliged to adjust their way of living to the cl ...
... The invention of air-conditioning can be regarded as the invention with the most profound influence in tropical countries. Never before had it been possible to live in complete thermal comfort. Prior to the emergence space cooling units Malaysians were obliged to adjust their way of living to the cl ...
Integrating Low-temperature Heating Systems into Energy
... Energy requirements for space heating and domestic hot water supplies in the Swedish building sector are responsible for almost 60 % of the total energy used. To decrease this enormous figure, energy saving measures are required, as well as opportunities to use low-temperature heating systems for in ...
... Energy requirements for space heating and domestic hot water supplies in the Swedish building sector are responsible for almost 60 % of the total energy used. To decrease this enormous figure, energy saving measures are required, as well as opportunities to use low-temperature heating systems for in ...
Optimal Control Experimentation of Compression
... Iterative Calculation of Optimal Trajectories The optimal trajectories are designed for constant values of h. Here, we consider an iterative algorithm that takes the advantage of both experimental data and theory to obtain optimal compression trajectories for the experimental setup. In this algorith ...
... Iterative Calculation of Optimal Trajectories The optimal trajectories are designed for constant values of h. Here, we consider an iterative algorithm that takes the advantage of both experimental data and theory to obtain optimal compression trajectories for the experimental setup. In this algorith ...
C093
... A number of researchers proposed the nucleation criteria for the onset of nucleation during flow boiling. Hsu and Graham (1961), Hsu (1962), Bergles and Rohsenow (1964), Sato and Matsumura (1964), and Davis and Anderson (1966) provided the underlying theory relating the temperature distribution in t ...
... A number of researchers proposed the nucleation criteria for the onset of nucleation during flow boiling. Hsu and Graham (1961), Hsu (1962), Bergles and Rohsenow (1964), Sato and Matsumura (1964), and Davis and Anderson (1966) provided the underlying theory relating the temperature distribution in t ...
972649 Quasi-Isothermal Expansion Engines for Liquid Nitrogen
... 180-300 kJ/kg achieved with lead-acid batteries, thus only 40% of the reversible work needs to be recovered to provide the LN2-propelled vehicle with a driving range commensurate with that of advanced battery-powered vehicles of comparable weight. The key issues are the ability to design a practical ...
... 180-300 kJ/kg achieved with lead-acid batteries, thus only 40% of the reversible work needs to be recovered to provide the LN2-propelled vehicle with a driving range commensurate with that of advanced battery-powered vehicles of comparable weight. The key issues are the ability to design a practical ...
Different levels of reversibility
... an isolated system remains constant. For any subsystem in the isolated system, the energy change equals the difference between the heat added and the work done. The internal energy of a system depends on the state of the system. The first law used the change in internal energy as one term. For any t ...
... an isolated system remains constant. For any subsystem in the isolated system, the energy change equals the difference between the heat added and the work done. The internal energy of a system depends on the state of the system. The first law used the change in internal energy as one term. For any t ...
Final Draft_v2.pdf
... electronics heat load and maintain constant cooling temperature. Assumption: Cooling by way of the thermoelectric module will be neglected for this investigation since a current is not being applied to the thermoelectric module. 5. Analyze, assess, and make recommendations towards whether heat sink ...
... electronics heat load and maintain constant cooling temperature. Assumption: Cooling by way of the thermoelectric module will be neglected for this investigation since a current is not being applied to the thermoelectric module. 5. Analyze, assess, and make recommendations towards whether heat sink ...
Dynamic insulation
Dynamic insulation is a form of insulation where cool outside air flowing through the thermal insulation in the envelope of a building will pick up heat from the insulation fibres. Buildings can be designed to exploit this to reduce the transmission heat loss (U-value) and to provide pre-warmed, draft free air to interior spaces. This is known as dynamic insulation since the U-value is no longer constant for a given wall or roof construction but varies with the speed of the air flowing through the insulation (climate adaptive building shell). Dynamic insulation is different from breathing walls. The positive aspects of dynamic insulation need to be weighed against the more conventional approach to building design which is to create an airtight envelope and provide appropriate ventilation using either natural ventilation or mechanical ventilation with heat recovery. The air-tight approach to building envelope design, unlike dynamic insulation, results in a building envelope that provides a consistent performance in terms of heat loss and risk of interstitial condensation that is independent of wind speed and direction. Under certain wind conditions a dynamically insulated building can have a higher heat transmission loss than an air-tight building with the same thickness of insulation.