http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : S. Ajithkumar (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
M. Vasudevan,P. S. Ajithkumar,R. P. Singh,N. Natarajan 대한환경공학회 2016 Environmental Engineering Research Vol.21 No.2
Present study investigates the potential of cassava peel and rubber tree bark for the removal of Cr (VI) from aqueous solution. Removal efficiency of more than 99% was obtained during the kinetic adsorption experiments with dosage of 3.5 g/L for cassava peel and 8 g/L for rubber tree bark. By comparing popular isotherm models and kinetic models for evaluating the kinetics of mass transfer, it was observed that Redlich-Peterson model and Langmuir model fitted well (R2 > 0.99) resulting in maximum adsorption capacity as 79.37 mg/g and 43.86 mg/g for cassava peel and rubber tree bark respectively. Validation of pseudo-second order model and Elovich model indicated the possibility of chemisorption being the rate limiting step. The multi-linearity in the diffusion model was further addressed using multi-sites models (two-site series interface (TSSI) and two-site parallel interface (TSPI) models). Considering the influence of interface properties on the kinetic nature of sorption, TSSI model resulted in low mass transfer rate (5% for cassava peel and 10% for rubber tree bark) compared to TSPI model. The study highlights the employability of two-site sorption model for simultaneous representation of different stages of kinetic sorption for finding the rate-limiting process, compared to the separate equilibrium and kinetic modeling attempts.
-
An experimental investigation on upward solar air heater with impinging air jets
M. Harikrishnan,R. Ajith Kumar,S. Ajithkumar,Rajesh Baby 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.1
This study presents and discuss the results of an experimental investigation conducted to understand and quantify the impact of air mass flow rate(m) over the heat transfer attributes of an upward solar air heater (SAHRR) utilizing impinging air jets. Experimental investigation was carried out for various mass flow rates ranging from 0.008 to 0.024 kg/s for various impinging air jet diameters (4, 6 and 8 mm). The thermal performance was evaluated based on the average value of Nusselt number, first law thermal efficiency, thermohydraulic efficiency and exergy efficiency. The lowest and the highest first law efficiency for an upward SAHRR employing 6 mm diameter jet is between 44 % and 88 %, respectively, when the solar radiation maintained is 1000 W/m 2 . Moreover, the final outcomes are compared with the base model (SAHRR without jet impingement) in order to highlight the positive impact of jet impingement on the performance of SAHRR.
ScienceON
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
