低热值(LHV,Lower Heating Value)高热值减去水汽化热/冷凝热,相当于燃料中可燃部分的燃烧热。 高热值(HHV,Higher Heating Value)相当于整个燃料地燃烧热,完全燃烧释放的热量。 总热值(GHV,Gross Heating Value)跟以气态形式被排放出来的水有关,并包括在燃烧之前存在于燃料中的水。这个值对于像是木材或是煤炭等燃料来说非常重要,因为这些燃料通常在燃烧之前都包含一定量的...
The higher heating value of natural gas refers to the total heat released when a specified amount of natural gas is completely burned, including the latent heat of vaporization released by the condensation of water vapor in flue gas into water. The lower heating value of natural gas refers to...
The LHVs of waste were in good agreement with those measured by a calorimetric bomb, even if they had a higher uncertainty level of about 7%Francesco Di MariaMarzio LasagniConference of the Italian Thermal Machines Engineering AssociationFrancesco Di, M. & Lazagni, M., 2017. On line ...
The corresponding gross and net efficiencies were about 18% and 8%, respectively, with an associated uncertainty < 1.4%. The LHVs of waste were in good agreement with those measured by a calorimetric bomb, even if they had a higher uncertainty level of about 7%...
“real” difference in toughness the resolution of the test may not be high enough to tell without more repeated specimens. However, there was an increase in hardness with cryo so using the liquid nitrogen treatment led to a higher balance of hardness and toughness. Because of the overwhelming...
Endothermic animals have higher energy needs than exothermic animals. This is because endothermic animals maintain a stable internal body temperature...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework...
(1991a). Accordingly, the mean Tmax of all studied samples is relatively low, with a mean value of 429 °C. High HI values confirm the low maturity of the studied samples, revealing relatively higher HI for well MAI (769 mg HC/g TOC on average) compared to WIC (720 mg HC/g TOC ...
We note that the determined Dvm composition may have bigger analytical error than Bdm, as documented in the higher than 1 of Si p.f.u in their stoichiometry. This may be caused by the selective Mg diffusion during electron beam irradiation in amorphous materials45. The Fe3+/ΣFe ratios of...
Correlations involving Total Tb data were corrected via partial correlation by the ratio of time spent asleep vs awake, given participants who spent more time asleep had lower Total mean Tb (r = −0.53, p < 0.05) and higher Total TimeSubThr (r = 0.62, p < 0.05). To account for ...
Oil prices persist higher because of existence if etfs which have expanded the pool of bids way beyond those who want to use the physical good. Once we remove these etfs a new balance between physical users and liquidity providers will emerge so that the price is less responsive to slight ch...