Energy, exergy and environmental analyses of a novel multi-generation system powered by solar thermal technology Olusola Olorunfemi Bamisile; Supervisor: Mustafa Dağbaşı

Yazar: Katkıda bulunan(lar):Dil: İngilizce Yayın ayrıntıları:Nicosia Cyprus International University 2019Tanım: XII, 141 p. color figure, table, color chart 30.5 cm CDİçerik türü:
  • text
Ortam türü:
  • unmediated
Taşıyıcı türü:
  • volume
Konu(lar): Özet: 'ABSTRACT In this research, a novel multi-generation system is presented. The energy, exergy and environmental performance of the multi-generation system is studied. The multi-generation system comprises of two Rankine cycles, two absorption cycles (single stage and double stage) and a hot water production chamber. The system is designed such that the exhaust heat from the first Rankine cycle serves as heat input for the second Rankine cycle and for a double effect absorption cycle. The exhaust heat from the second Rankine cycle serves as heat input to a single effect Rankine cycle. Regeneration and reheat principles are also applied to the Rankine cycles. In this design, the condenser for the main cycle is replaced with a hot water generator. The objective of the study is to achieve higher energy and exergy efficiencies. Two concentrated solar technologies namely; solar parabolic trough collectors and solar heliostats are used to power the designed system. The environmental benefit of the system is also analyzed. The heat input from solar PTC and heliostats are designed to be same. The research focus more on the multi-generation system thereby the two different solar input does not have an effect on the efficiencies of the multi-generation. The effect of the different solar thermal applications is evident on the overall efficiencies of the design when considering the solar input. The multi-generation system achieves energy and exergy efficiency of 73.11% and 50.72% respectively. The application of solar thermal technologies to power the system reduces the overall energy and exergy efficiencies respectively to 56.12% and 38.39% for solar PTC and 41.89% and 29.06% for heliostats. The energy and exergy COPs are 0.754 and 0.349 for single effect absorption cycle respectively. As much as 752.7 kg/h of CO2, 2.13 kg/h of NOX and 4.21 kg/h of SOX will be saved from being emitted to the atmosphere. The details of the multi-generation system and all the results obtained from the analysis are presented in this thesis write-up.'
Materyal türü: Thesis
Mevcut
Materyal türü Geçerli Kütüphane Koleksiyon Yer Numarası Durum Notlar İade tarihi Barkod Materyal Ayırtmaları
Thesis Thesis CIU LIBRARY Tez Koleksiyonu Tez Koleksiyonu D 137 B26 2019 (Rafa gözat(Aşağıda açılır)) Kullanılabilir Energy System Engineering Department T1518
Toplam ayırtılanlar: 0

Includes CD

Includes references (102-129 p.)

'ABSTRACT In this research, a novel multi-generation system is presented. The energy, exergy and environmental performance of the multi-generation system is studied. The multi-generation system comprises of two Rankine cycles, two absorption cycles (single stage and double stage) and a hot water production chamber. The system is designed such that the exhaust heat from the first Rankine cycle serves as heat input for the second Rankine cycle and for a double effect absorption cycle. The exhaust heat from the second Rankine cycle serves as heat input to a single effect Rankine cycle. Regeneration and reheat principles are also applied to the Rankine cycles. In this design, the condenser for the main cycle is replaced with a hot water generator. The objective of the study is to achieve higher energy and exergy efficiencies. Two concentrated solar technologies namely; solar parabolic trough collectors and solar heliostats are used to power the designed system. The environmental benefit of the system is also analyzed. The heat input from solar PTC and heliostats are designed to be same. The research focus more on the multi-generation system thereby the two different solar input does not have an effect on the efficiencies of the multi-generation. The effect of the different solar thermal applications is evident on the overall efficiencies of the design when considering the solar input. The multi-generation system achieves energy and exergy efficiency of 73.11% and 50.72% respectively. The application of solar thermal technologies to power the system reduces the overall energy and exergy efficiencies respectively to 56.12% and 38.39% for solar PTC and 41.89% and 29.06% for heliostats. The energy and exergy COPs are 0.754 and 0.349 for single effect absorption cycle respectively. As much as 752.7 kg/h of CO2, 2.13 kg/h of NOX and 4.21 kg/h of SOX will be saved from being emitted to the atmosphere. The details of the multi-generation system and all the results obtained from the analysis are presented in this thesis write-up.'

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