Farhan Farooq - Academia.edu (original) (raw)
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Papers by Farhan Farooq
The Transactions of the Korean Institute of Power Electronics, 2020
Energies, 2021
Conventional experimental methods for testing the performance of super-capacitors include the mea... more Conventional experimental methods for testing the performance of super-capacitors include the measurement of capacitance through charge and discharge, measurement of equivalent series resistance (ESR) and measurement of self-discharge and the equivalent circuit model (ECM) by electrochemical impedance spectroscopy (EIS). However, the methods are not suitable for the mass production line of supercapacitors since they require a long time for the test and several kinds of different instrument. EIS is an attractive method to evaluate the performance of supercapacitors except that it takes a long time for a single test. In this paper a fast EIS instrument suitable for quality assurance for the mass production of supercapacitors is proposed. In order to reduce the time for the test, a multi-sine sweeping method is used for the EIS test and the results are analyzed by extracting the parameters of the ECM to evaluate the performance of the supercapacitors. The proposed instrument is develop...
The battery powered electric vehicle (EV) is one of most promising technologies in 21 century. Th... more The battery powered electric vehicle (EV) is one of most promising technologies in 21 century. Though the lithium batteries are playing an important role in the EVs, they are only applicable until their capacities reach 80%, the end of its useful first life. Yet, these batteries can live a second life such as Energy Storage Systems (ESS). In order to utilize the Residual Useful Life (RUL) of the batteries the State of Health (SOH) of them needs to be estimated by a nondestructive test such as Electrochemical Impedance Spectroscopy (EIS) technique. Though many kinds of different EIS instruments are commercially available, most of them can only test a battery module less than 10V and the price of the instrument is very high. In this paper a low-cost EIS instrument suitable for measuring the impedance spectrum of the high voltage battery module is proposed and its validity is verified through the experiments. In order to prove the accuracy of the developed EIS instrument its measured i...
자동차용 배터리는 초기 용량의 80% 이하가 되면 교체하게 되며, 근간 폐배터리의 수가 폭발적으로 증가할 것으로 예측되 고 있다. 폐배터리의 폐기로 인한 환경 파괴를 방지하고... more 자동차용 배터리는 초기 용량의 80% 이하가 되면 교체하게 되며, 근간 폐배터리의 수가 폭발적으로 증가할 것으로 예측되 고 있다. 폐배터리의 폐기로 인한 환경 파괴를 방지하고 자원 을 재활용하기 위해서 자동차에서 나오는 폐배터리를 에너지 저장장치(ESS)로 재사용 하는 것에 대한 관심이 높아지고 있 다. 폐배터리를 ESS로 재구성하기 위해서는 폐배터리 모듈의 그레이딩을 통해 비슷한 성능의 모듈끼리 모아서 구성하는 것 이 매우 중요하다. 배터리 모듈 간의 불균형은 전체 시스템의 성능을 저하시키며, 따라서 비슷한 성능과 잔존 수명을 가진 모듈을 골라내는 일은 폐배터리의 재사용에 있어서 첫 번째 선 결 과제가 된다. 본 연구에서는 폐배터리의 상태 및 잔존수명 평가를 위해 배터리 모듈의 임피던스 스펙트럼을 측정할 수 있 는 장비를 개발하였다. 폐배터리 모듈에 AC 섭동을 인가하고 이를 측정하여 임피던스 스펙트럼을 계산할 수 있는 하드웨어 와 소프트웨어를 개발하였다. 개발 장비는 60V이하의 폐배터리 모듈의 임피던스 스펙트럼을 0.1Hz에서 1kHz까지 측정 가능하 며, 측정 결과를 바탕으로 커브 피팅을 통해 등가회로의 파라 미터도 계산할 수 있다. SM3에서 얻어진 폐배터리 모듈을 이 용하여 측정한 임피던스 스펙트럼을 상용장비인 BIM2로 측정 한 결과를 비교하였고, Reduced Chi-Square를 이용한 분석결 과 두 데이터가 거의 일치함을 알 수 있었다.
Journal of World's Poultry Research, 2019
Environmental heat stress is one of the most challenging conditions which have adverse effect on ... more Environmental heat stress is one of the most challenging conditions which have adverse effect on the poultry industry. Broiler chickens are sensitive to heat stress mainly due to not having sweat glands. The current study was conducted to observe the effect of heat stress on performance of Ross-308 broiler chickens. 1600 Ross-308 broiler day old chicks were obtained from local hatchery and randomly divided into two groups, the heat stress group A (n=800) and heat free group B (n=800). Group A was reared in high temperature (101 0 F) whereas group B was reared in ideal temperature. To evaluate the physiological stress indicators blood glucose levels and total blood cell count were checked on day 21 and 28. The parameters observed were; feed intake, body weight gain, feed conversion ratio, water intake and carcass yield. The results indicated that feed intake, weight gain, water intake, feed conversion ratio and carcass yield were significantly higher in group B compared to group A. It was concluded that heat stress has deleterious effect over the performance of broiler Ross-308 chicken.
The Transactions of the Korean Institute of Power Electronics, 2020
Energies, 2021
Conventional experimental methods for testing the performance of super-capacitors include the mea... more Conventional experimental methods for testing the performance of super-capacitors include the measurement of capacitance through charge and discharge, measurement of equivalent series resistance (ESR) and measurement of self-discharge and the equivalent circuit model (ECM) by electrochemical impedance spectroscopy (EIS). However, the methods are not suitable for the mass production line of supercapacitors since they require a long time for the test and several kinds of different instrument. EIS is an attractive method to evaluate the performance of supercapacitors except that it takes a long time for a single test. In this paper a fast EIS instrument suitable for quality assurance for the mass production of supercapacitors is proposed. In order to reduce the time for the test, a multi-sine sweeping method is used for the EIS test and the results are analyzed by extracting the parameters of the ECM to evaluate the performance of the supercapacitors. The proposed instrument is develop...
The battery powered electric vehicle (EV) is one of most promising technologies in 21 century. Th... more The battery powered electric vehicle (EV) is one of most promising technologies in 21 century. Though the lithium batteries are playing an important role in the EVs, they are only applicable until their capacities reach 80%, the end of its useful first life. Yet, these batteries can live a second life such as Energy Storage Systems (ESS). In order to utilize the Residual Useful Life (RUL) of the batteries the State of Health (SOH) of them needs to be estimated by a nondestructive test such as Electrochemical Impedance Spectroscopy (EIS) technique. Though many kinds of different EIS instruments are commercially available, most of them can only test a battery module less than 10V and the price of the instrument is very high. In this paper a low-cost EIS instrument suitable for measuring the impedance spectrum of the high voltage battery module is proposed and its validity is verified through the experiments. In order to prove the accuracy of the developed EIS instrument its measured i...
자동차용 배터리는 초기 용량의 80% 이하가 되면 교체하게 되며, 근간 폐배터리의 수가 폭발적으로 증가할 것으로 예측되 고 있다. 폐배터리의 폐기로 인한 환경 파괴를 방지하고... more 자동차용 배터리는 초기 용량의 80% 이하가 되면 교체하게 되며, 근간 폐배터리의 수가 폭발적으로 증가할 것으로 예측되 고 있다. 폐배터리의 폐기로 인한 환경 파괴를 방지하고 자원 을 재활용하기 위해서 자동차에서 나오는 폐배터리를 에너지 저장장치(ESS)로 재사용 하는 것에 대한 관심이 높아지고 있 다. 폐배터리를 ESS로 재구성하기 위해서는 폐배터리 모듈의 그레이딩을 통해 비슷한 성능의 모듈끼리 모아서 구성하는 것 이 매우 중요하다. 배터리 모듈 간의 불균형은 전체 시스템의 성능을 저하시키며, 따라서 비슷한 성능과 잔존 수명을 가진 모듈을 골라내는 일은 폐배터리의 재사용에 있어서 첫 번째 선 결 과제가 된다. 본 연구에서는 폐배터리의 상태 및 잔존수명 평가를 위해 배터리 모듈의 임피던스 스펙트럼을 측정할 수 있 는 장비를 개발하였다. 폐배터리 모듈에 AC 섭동을 인가하고 이를 측정하여 임피던스 스펙트럼을 계산할 수 있는 하드웨어 와 소프트웨어를 개발하였다. 개발 장비는 60V이하의 폐배터리 모듈의 임피던스 스펙트럼을 0.1Hz에서 1kHz까지 측정 가능하 며, 측정 결과를 바탕으로 커브 피팅을 통해 등가회로의 파라 미터도 계산할 수 있다. SM3에서 얻어진 폐배터리 모듈을 이 용하여 측정한 임피던스 스펙트럼을 상용장비인 BIM2로 측정 한 결과를 비교하였고, Reduced Chi-Square를 이용한 분석결 과 두 데이터가 거의 일치함을 알 수 있었다.
Journal of World's Poultry Research, 2019
Environmental heat stress is one of the most challenging conditions which have adverse effect on ... more Environmental heat stress is one of the most challenging conditions which have adverse effect on the poultry industry. Broiler chickens are sensitive to heat stress mainly due to not having sweat glands. The current study was conducted to observe the effect of heat stress on performance of Ross-308 broiler chickens. 1600 Ross-308 broiler day old chicks were obtained from local hatchery and randomly divided into two groups, the heat stress group A (n=800) and heat free group B (n=800). Group A was reared in high temperature (101 0 F) whereas group B was reared in ideal temperature. To evaluate the physiological stress indicators blood glucose levels and total blood cell count were checked on day 21 and 28. The parameters observed were; feed intake, body weight gain, feed conversion ratio, water intake and carcass yield. The results indicated that feed intake, weight gain, water intake, feed conversion ratio and carcass yield were significantly higher in group B compared to group A. It was concluded that heat stress has deleterious effect over the performance of broiler Ross-308 chicken.