By Edited by Cumhur Aydinalp
The chance of manufacturing fresh, sustainable strength from renewable strength assets is turning into a crucial topic, motivated by means of contemporary technological advancements that experience more desirable the cost-effectiveness of many renewables and by way of the expanding main issue for the environmental effect and sustainability of traditional fossil and nuclear fuels. This e-book offers a entire review of the relevant renewable power assets with a variety of case experiences for every resource. It explains the underlying actual and technological ideas, and examines the environmental influence of renewable assets and their destiny customers. the general process is interdisciplinary, overlaying the commercial, social, environmental and coverage matters from the purpose of study on renewable strength. It additionally tackles the actual and engineering points. The ebook will, as a result, strongly entice non-specialist readers who desire to increase their figuring out of this advanced, interesting and more and more vital topic.
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Extra info for Clean Energy for Better Environment
The exergy loss ratio of the sys‐ tem components is given as follows to compare of these components by using exergy analy‐ sis view point. E˙ xLR = E˙ xD,com E˙ x D,sys (15) where E˙ x D,com is exergy destruction of the system components and E˙ x D,sys is the exergy de‐ struction of the overall system. The exergy destruction rate for the each component and over‐ all of the multi-generation system is given in the Table 1 according to given above procedure. Table 1. 1. Energy efficiency The energy efficiency of the process is defined as the ratio of useful energy produced by the process to the total energy input.
Depending on the required precision, 0D models can be used to solve governing equations for planar SOFC, written for each of the cell components: electrodes, electrolyte, interconnects and flow channels [21,22,23,24,25]. Required assumptions include constant fluid properties, air as an incompressible gas and no chemical reactions occurring in the fuel and air channels. Set of governing equations is later solved with desired accuracy by different algorithms. System-level studies can be performed with commercially available software such as Aspen Plus or Aspen Hysys.
2. As seen in the Fig. 2, the solar parabolic trough collector and condenser are calculated to have the lowest exergy efficiency as 17 and 22%, respectively. This is associated with concentrating losses, high temperature differences and phase chance which results in more entropy generation between the inlet and outlet streams. Figure 2. 3321, respectively. The COPex is lower than COP, due to the considerable irre‐ versibilities occurring in the absorption cycle. Energy and exergy efficiency results for the absorption system components are compared to the experimental studies [9-11] and a rea‐ sonably good agreement are found.