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Browsing School of Engineering and Technology (JA) by Issue Date

Browsing School of Engineering and Technology (JA) by Issue Date

Now showing items 1-20 of 144

Physical properties of crude oil from cape chestnut (Calendrum capense)

Shitanda, Douglas; Mutuli, D. A.; Odingo, E. (1997)

Physical properties of crude oil from cape chestnut (Calendendrum capense) were determined. The effects of temperature and methods of extraction on some of the properties were analysed. The density of the oil decreased ...
Husking characteristics of different varieties of rice: husking long and short grain rice by impeller husker

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (1998)
Husking characteristics of different varieties of rice: husking long and short grain rice by rubber roll and impeller husker

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (1999)
Properties of crude oil from indigenous oilseeds in Africa

Shitanda, Douglas; Nishiyama, Yoshio; Muturi, Daniel (1999)

Properties of crude oil from four indigenous oilseeds in Africa (Kenya) were determined and their potential use as fuel, lubricants, hydraulic fluids, and brake fluids were evaluated. The oils were extracted chemically ...
Effect of peripheral velocity difference ratio on the performance of rubber roll husker

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (2000)
Performance analysis of impeller and rubber roll husker using different varieties of rice

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (2001)

Performance analysis of experimental impeller and rubber roll huskers was carried out using three different varieties of rice namely; Akitakomachi (short grain), Delta (long grain) and L201 (long grain). Impeller husker ...
Husking characteristics of short and long grain rice by rubber roll husker (part 1): Dynamic Analysis of a Single Grain Motion

Shitanda, Douglas; Nishiyama, Yoshio; Koide, Shoji (2001)

Dynamic analysis of grain motion in an experimental rubber roll husker was carried out using short and long grain rice. The short grain rice variety used was Akitakomachi and the long grain rice varieties were Delta and ...
PH—postharvest technology: performance analysis of an impeller husker considering the physical and mechanical properties of paddy rice

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (Elsevier Ltd., 2001-06)

Some physical and mechanical properties of three varieties of rice namely; Akitakomachi (short grain), Delta and L201 (long grain) were determined and used in the performance analysis of an impeller husker. Grain motion ...
Compressive strength properties of rough rice considering variation of contact area

Shitanda, Douglas; Nishiyama, Y.; Koide, S. (Elsevier Ltd., 2002)

Compressive strength properties of three different varieties of rice, namely Akitakomachi (Short grain variety), Delta and L201 (Long grain varieties) were determined in their natural state. Rough rice was compressed between ...
Effect of Different Drying Methods on the Quality of Jute (Corchorus olitorius L.)

Shitanda, Douglas; Wanjala, N. V. (Taylor and Francis Group, 2006)

The need to promote the use of indigenous vegetables is gaining momentum, as more of their quality factors (nutritive and medicinal) are unveiled through research. Quality factors are classified as quantitative (ingredients, ...
A finite element model for the analysis of temperature and moisture distribution in a solar grain dryer

Uluko, H.; Kanali, C. L.; Mailutha, J. T.; Shitanda, Douglas (2006)
Finite element prediction of temperature distribution in a solar grain dryer

Uluko, H.; Mailutha, J. T.; Kanali, C. L.; Shitanda, Douglas; Murase, H. (2006-06)

A need exists to monitor and control the localized high temperatures often experienced in solar grain dryers, which result in grain cracking, reduced germination and loss of cooking quality. A verified finite element model ...
Hammer mill throughputs and power requirements while grinding maize and wheat

Nyaanga, D. M.; Maina, G. G.; Wambua, Raphael M. (2007)
Quantifying land cover and land use change by remote sensing and GIS techniques in River Njoro catchment, Kenya

Kundu, P. M.; China, S. S.; Wambua, Raphael M. (2009)
Effects of ground insulation and greenhouse microenvironment on the rate and quality of biogas production

Cheruiyot, P. K.; Ngunjiri, G. M.; Ndiema, C. K.; Chemelil, M. C.; Wambua, Raphael M. (UNESCO, 2009)

A study was conducted at Egerton University, Njoro, Kenya to establish the potential of plastic digester to produce biogas under natural and greenhouse microenvironment. The specific objectives were to evaluate the effects ...
Influence of Brining on the Drying Parameters of Tilapia (Oreochromis Niloticus) in a Glass-Covered Solar Tunnel Dryer

Kituu, Gareth M.; Shitanda, Douglas; Kanali, C. L.; Mailutha, J. T.; Njoroge, C. K.; Wainaina, J. K.; Ondote, P. M. O. (International Commission of Agricultural and Biosystems Engineering, 2009)

The objective of this study was to determine the effect of brining on the drying rate of tilapia (Oreochromis niloticus) in a glass-covered solar tunnel dryer. Tilapia fish, eviscerated, and split into pieces of approximately ...
Modeling thin layer drying of amaranth seeds under open sun and natural convection solar tent dryer

Ronoh, E. K.; Kanali, C. L.; Mailutha, J. T.; Shitanda, Douglas (Texas A & M University Press, 2009-11)

Thin layer drying studies of amaranth (Amaranthus cruentus) seeds were carried out under open sun and natural convection solar tent dryer. The ambient temperature and relative humidity ranged from 22.6-30.4°C and 25-52%, ...
Drying characteristics and some quality attributes of Rastrineobola argentea (Omena) and Stolephorus delicatulus (Kimarawali)

Oduor-Odote, P. M.; Shitanda, Douglas; Obiero, M.; Kituu, Gareth M. (Rural Outreach Program, 2010)

Rastrineobola argentea common name Omena and Stolephorus delicatulus common name Kimarawali are fishes that live in the freshwater and marine waters, respectively. Both are small in size, move in schools and are landed in ...
A Simulation Model for Solar Energy Harnessing By the Tunnel Section of a Solar Tunnel Dryer

Kituu, Gareth M.; Shitanda, Douglas; Kanali, C. L.; Mailutha, J. T.; Njoroge, C. K.; Wainaina, J. K.; Bongyereire, J. S. (International Commission of Agricultural and Biosystems Engineering, 2010-01)

Models were developed to predict global solar radiation and the energy harnessed by a solar tunnel dryer, and simulated in Visual Basic 6. In addition, the simulated data were compared with actual data. Using a 10% absolute ...
Thin layer drying kinetics of amaranth (Amaranthus cruentus) grains in a natural convection solar tent dryer

Ronoh, E. K.; Kanali, C. L.; Mailutha, J. T.; Shitanda, Douglas (2010-03)

An experimental solar tent dryer under natural convection was used to study thin layer drying kinetics of amaranth (Amaranthus cruentus) grains. Drying of grains in the dryer was carried out on a drying rack having two ...

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