نتایج جستجو برای: payback time
تعداد نتایج: 1892565 فیلتر نتایج به سال:
In this paper the effect on energy consumption and pollution of fuzzy automatic control of a rotary kiln is investigated. The computer-based fuzzy control system is installed at the Larko ferronickel plant in Larymna, Greece, by the Danish firm F .L. Smidth & Co. A/S. Operation characteristics for the manual operation against automatic control are defined and compared. Preliminary results show ...
The efficiency and output power of gas turbine power plants are heavily affected by ambient air temperature. To compensate this defect, some cooling technologies and technics are applied. In this paper, the effect of applying an absorption chiller by recovering waste heat from gas turbine flue gas has been investigated. For this purpose, the behavior of a GE-F5 gas turbine was modeled by coding...
For many years, the photovoltaics (PV) community has relied on the concept of energy payback time (EPT) as a means of quantifying the ratio of energy generated from a PV panel or system over its lifetime, compared to the energy that was required to fabricate it. Few other energy technologies are so judged and this paper argues that the EPT concept is obsolete, misleading and may possibly even c...
Feeder design affected payback. The Cinch Net paid for itself in less than 1 month; Tombstone and Ring, 2 months; Hayhut and Tombstone Saver, 4 months; Hay Sleigh, 5 months; Waste Less, 8 months; Cone, 9 months; and Covered Cradle, 19 month. Although the Cinch Net paid for itself in the shortest amount of me, it is only guaranteed for three years. All other feeders claim to last indefinitely, h...
The purpose of this paper is to study a Monte Carlo simulation of the discounted payback, and its application to investment appraisal. The underlying project in the case study has a useful life of 10 years with an initial outlay of $2,000, and with stochastic, independent, and normally distributed cash inflows. These cash inflows are simulated from the same normal frequency distribution, i.e. f...
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