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Browsing University of Hertfordshire by Author "Abdelrazek, Ali H."
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Application of the ANOVA method in the optimization of a thermoelectric cooler-based dehumidification system
Eltaweel, Mahmoud; Heggy, Aya H.; Yaseen, Zaher Mundher; Alawi, Omer A.; Falah, Mayadah W.; Hussein, Omar A.; Ahmed, Waqar; Homod, Raad Z.; Abdelrazek, Ali H. (2022-11-30)In recent studies, Thermo-Electric Coolers (TEC) have been utilized for dehumidification purposes, which is mainly based on the extraction of moisture from humid atmospheric air. The reviewed literature showed that the ... -
Deep clustering of cooperative multi-agent reinforcement learning to optimize multi chiller HVAC systems for smart buildings energy management
Homod, Raad Z.; Yaseen, Zaher Mundher; Hussein, Ahmed Kadhim; Almusaed, Amjad; Alawi, Omer A.; Falah, Mayadah W.; Abdelrazek, Ali H.; Ahmed, Waqar; Eltaweel, Mahmoud (2023-04-15)Chillers are responsible for almost half of the total energy demand in buildings. Hence, the obligation of control systems of multi-chiller due to changes indoor environments is one of the most significant parts of a smart ... -
Thermohydraulic analysis of covalent and noncovalent functionalized graphene nanoplatelets in circular tube fitted with turbulators
Tao, Hai; Alawi, Omer A.; Hussein, Omar A.; Ahmed, Waqar; Abdelrazek, Ali H.; Homod, Raad Z.; Eltaweel, Mahmoud; Falah, Mayadah W.; Al-Ansari, Nadhir; Yaseen, Zaher Mundher (2022-10-21)Covalent and non-covalent nanofluids were tested inside a circular tube fitted with twisted tape inserts with 45° and 90° helix angles. Reynolds number was 7000 ≤ Re ≤ 17,000, and thermophysical properties were assessed ...