The goal of this study is to evaluate the advantages of hydrogen production in a small scale unit and its use and compare it with use of biogas as a direct source of fuel. Criteria used in this selection are thermal efficiency, CO2 emissions, by-products and cost per kg of hydrogen ...
Like many energy-producing projects, their value depends on the cost of fuel. If oil prices go up, then the biogas is more valuable. Along another line, if a farmer has a great deal of manure to dispose of, then digesters look more attractive—to reduce odor if nothing else. In ...
Consequently, this study has shown that the wasted biogas potential of the city from the selected 164.51 tons of daily fruit wastes alone was 20896 m3 per day. This wasted energy material is equivalent to 9000 L of diesel fuel that currently would cost 9389 US dollars. Further, soil ...
A benefit is that this system has a low operating cost. However, high initial investment costs and the required precleaning of dust and oil particles are drawbacks of the system [76]. When using the water absorption method with glycols, the biogas dew point can be decreased to −15 °C...
𝐶𝐴𝐷CAD cost of avoided damage, € DALY−1 𝐶˙C˙ cost flow, € h−1 𝑐𝑒ce operating cost expressed per unit of removed substance 𝑐𝑓cf characterization factor, kgsubstance,eq. kgemission−1 𝑐𝑠cs specific reduction cost, € kg−1 D damage, DALY I device in...
the same conditions. Similarly, a mixture of equal ratio of cattle slurry and cheese whey was tested for biogas production. A methane yield of 343.43L CH4/kg volatile solid was achieved by using an OLR of 2.65g volatile solid/L per day. Overall, total biogas production was found to be ...
In contrast to Janata, the Deenbandhu biogas plant was found to be not only cheaper on the basis of cost / m3 rated capacity of the plant, but it also produced more gas per unit of manure fed and per unit of digester volume in addition to maintaining a consistent rate of gas ...
Typical design criteria are space, existing structures, cost minimization and substrate availability. The designs of biogas plants in industrialized countries reflect a different set of conditions. Biogas could be produced at different scales: a small- scale by farmers and large-scale by industrials....
was recently tested in a coal-fired plant with an energy consumption of 1.8 MJ/kg CO2. Economic analyses were carried out for anti-sublimation CO2capture, giving a cost of 34.5 €/ton CO2. Among the different alternatives of cryogenic hybrid systems, cryogenic membrane processes stand out due ...
[66], is another factor used to classify them. In general, NPs contain a large number of particles per unit weight, a high surface-to-volume ratio, and confinement or quantum effects, which means fewer atoms per particle. These NPs specific traits lead to properties that are significantly ...