Dr. Daniel Ketui,
Cod Physics
School of Pure and Applied Sciences
3. Biography:
Dr. Ketui is lecturer in the department of Physics, Kisii university with specialization in electronics. He has an undergraduate degree in Education Science (Maths/Physics) from Egerton University and a master degree in electronics from Kenyatta University. He got his doctoral degree from Harbin Engineering University from the People Republic of China in the year 2016. Having graduated as a high school teacher in 2006, he worked with Teachers service commission from 2007-2016 before becoming a lecturer at Kisii University. In the year 2020, he was appointed as the chair of the department of physics, a position he is holding until now. Apart from managing the department, Dr. Ketui is also engaged in teaching undergraduate and postgraduate students. In addition, he supervises undergraduate and postgraduate projects. He has published a number of publications which can be accessed from Google scholar.
4. Academic Qualifications:
2013-2016: PhD in Information and Communication Engineering Harbin Engineering University, 145 Nantong Str, Harbin, China
2008-2011: Master of Science (Electronics & Instrumentation) Kenyatta University, P.O. Box 43844, Nairobi, Kenya
2000-2005: Bachelor of Education Science-Physics and Mathematics: Second class Upper Division Egerton University, P.O. Box 536 ,Njoro, Kenya
1995-1998: Kenya Certificate of Secondary Education (KCSE)
Mean Grade-B+, Boron Sec School, P.O. Box 368,Molo, Kenya
1986-1994: Kenya Certificate of Primary Education (KCPE)
Points: 59/84 Kaplamboi Pri School, P.O. Box 157, Olenguruone, Kenya
MSC Thesis title:
Design and Fabrication of a Labview Automated Computer-Based Fire Fighting System
PHD Thesis
Gas Turbine Radiation Thermometry: Reflection Error Analysis and Temperature Measurement Methods
5. Research Interests:
My research covers wide field of electronics which include but not limited to computer based control of systems, sensor fabrication and applications, solar cell research, mobile communication among others.
6. Publications:
1. Ketui Daniel, Karimi Patrick and Merenga A.S, “Design And Fabrication Of Labview Automated Computer-Based Fire Fighting System”, International Journal of Current Research, 4 (2012) 258-263.
2. Ketui Daniel, Chi Feng, Shan Gao, “Single wavelength and ratio pyrometry reflection errors in temperature measurement of gas turbine blade”, Measurement, 86 (2016) 133-40.
3. Ketui Daniel,Chi Feng, Shan Gao, “Reflection error correction of gas turbine blade temperature”, Infrared Physics & Technology, 75 (2016) 153-9.
4. Ketui, Daniel, Feng, C., Gao, S. "Application of multispectral radiation thermometry in temperature measurement of thermal barrier coated surfaces". Measurement. 92, 218-23, 2016.
5. Tuwei Abraham, Ketui Daniel and Njogu Samson, “Effects of Annealing and Oxygen/Nitrogen Ratio on Transmittance of Copper Oxynitride Thin Films”, International Journal of Thin Films Science and Technology, 5 (2016).
6. Shan Gao, Wang Lixin, Chi Feng, Ketui Daniel, “Analysis and improvement of gas turbine blade temperature measurement error”, Measurement Science and Technology, 26 (2015) 105203.
7. Shan. Gao, Wang Lixin, Chi Feng, Xiao Yihan, Ketui Daniel, “Multi-spectral pyrometer for narrow space with high ambient temperature”, Optical Review, 22 (2015) 605-13.
8. Shan Gao, Wang Lixin, Chi Feng, Xiao Yihan, Ketui Daniel, “Monitoring temperature for gas turbine blade: correction of reflection model”, OPTICE, 54 (2015) 065102.
9. Shan Gao, Wang Lixin, Chi Feng, Ketui Daniel, “Analyzing the influence of combustion gas on a gas turbine by radiation thermometry”, Infrared Physics & Technology, 73 (2015) 184–193.
10. Feng Chi, Li Dong, Gao Shan, Ketui Daniel. "Calculating the reflected radiation error between turbine blades and vanes based on double contour integral method". Infrared Physics & Technology. 79, 171-82, 2016.
11. Dong Li, Chi Feng, Shan Gao, Liwei Chen and Ketui Daniel. “Study on temperature measurement of gas turbine blade based on analysis of error caused by the reflected radiation and emission angle” Meas. Sci. Technol. 29, 065003, 2018
12. Li, Dong, Chi Feng, Shan Gao, Ketui Daniel, and Liwei Chen. "Effect of pyrometer type and wavelength selection on temperature measurement errors for turbine blades." Infrared Physics & Technology 94 (2018): 255-262.
13. Li D, Feng C, Daniel Ketui, Gao S, Chen L, Kang Z.(2019) , “Turbine blade temperature error as measured with an optical pyrometer under different wavelengths and blade TBC thickness” Appl Opt. 58 (7):1626-1630. doi: 10.1364/AO.58.001626.
14. Munyao, L.N., Ketui, D.K., Otieno, C. and Chege, M.W. (2020). Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya. The Scientific World Journal, 2020.
15. Omweno, S. O., Ketui, D., & Otieno, C. (2023). Voice and Gesture Controlled DC Motor Fan’s Rotational Speed and Direction. European Journal of Electrical Engineering and Computer Science, 7(5), 1-6.
7. Classes you taught:
• Undergraduate and Post graduate classes
8. Official Contact Details:
• University Email: dketui@kisiiuniversity.ac.ke
Kisii University | 
