Juma, Shaibu A.; Ollengo, Newton K.; Chepchirchir, Salome(JKUAT-COETEC, 2024-06-03)
More than 3 billion people lack access to safe water for drinking. Availability and access to water services are fundamental in preserving the health and well-being of humans. The quality of water has to be of a certain ...
In the past decade, power systems across the world have witnessed a trend of increased penetration in renewable energy systems. This proliferation has been caused by the significant global commitment to achieve a net-zero ...
Due to its numerous applications, triacetin is regarded as the most valuable acetin when compared to other acetin. Glycerol from biodiesel production and acetic acid are
considered as potential reactants for triacetin ...
Mutunga, J. M.; Ndiritu, H. M.; Hawi, M.; Oketch, P.(JKUAT-COETEC, 2024-06-03)
Biogas production from anaerobic digestion of organic waste has gained significant attention globally in recent years as it addresses both energy and environmental challenges. It is primarily used for cooking, lighting, ...
Ngunzi, V. K.; Kanali, C. K.; Kituu, G. M.; Ronoh, E. K(JKUAT-IEET, 2024-06-03)
Wood fuel is the main supply of heat energy for withering and drying of tea. With the diminishing trends of wood fuel caused by reducing land mass due to increased population and government ban on logging of wood fuel from ...
Okoth, G. H.; Ndeda, R.; Raghupatruni, P.; Olakanmi, E. O.(JKUAT-COETEC, 2024-06-03)
Additive manufacturing technologies offer unique capabilities that result in the creation of innovative, high-performance complex design geometries at reduced material cost. These novel design approaches can be fully ...
Muchiri, I. Ngethe; Kiplimo, Yator C.; Aoki, Shohei(JKUAT-COETEC, 2024-06-03)
Microcontroller devices are incorporated in the flight computer that convey data to the ground station in the design and implementation of model rocketry. In the field of rocketry, data transfer speed and precision are ...
Granivorous birds are known to destroy grain crops in farms, and various studies are underway to find a solution to the problem. In recent studies, state-of-the-art deep learning technologies have been actively applied. ...
Fokui, Willy Stephen Tounsi; Saulo, Michael; Ngoo, Livingstone(JKUAT-COETEC, 2024-06-03)
Kenya has a strong interest in electric vehicles (EVs), which are quickly being deployed in key cities such as Nairobi. The problem with the increasing number of EVs in the country is that they will lead to an increase in ...
Njihia, Francis N.; Mutua, James; Kabini, Samuel K.; Wamai, James(JKUAT-COETEC, 2024-06-03)
Automotive, aerospace, electronics, and medical device manufacturers are leveraging the potential of combining polymer and metals to produce highly efficient components. The motivation is the lightweight and compact nature ...
Anyango, Beatrice N.; Raude, James M.; Wandera, Simon M.(JKUAT-COETEC, 2024-05-31)
Slaughterhouse wastewater (SHWW) is another most-explored proteinous substrate for biomethane recovery. However, inhibitory compounds associated with its anaerobic monodigestion (AMoD) limit its practical and industrial ...
Fayiah, George P.; Mbuge, Duncan O.; Mutwiwa, Urbanus N.(JKUAT-COETEC, 2024-05-31)
Global temperatures are affecting almost all aspects of our society, including food security. A rise in temperature leads to a decrease in relative humidity. In Kenya, about 25–45% of fruits and vegetables perished because ...
Otieno, Austine O.; Home, Patrick G.; Raude, James M.; Murunga, Sylvia N.; Munala, Gerryshom; Tuhkanen, Tuula(JKUAT-COHRED, 2024-05-31)
The diminishing phosphate rock reserves and the increasing cost of fertilizer production is a major driver for seeking alternative sustainable sources of phosphate fertilizers to meet the growing food demand. Extracting ...
Mwonga, Michael Mwendwa, A; Kabubo, Charles,B; Gathimba, Naftary, B(JKUAT-COETEC, 2024-05-31)
The provision of transverse openings in beams to allow passage of services reduces the cracking and ultimate load capacities of the beams and increases deflection under the openings. Strengthening of the pre-planned opening ...
Kimanzi, Virginia; Mburu, Charles M.; Njogu, Paul M.(JKUAT-IEET, 2024-05-31)
Steady growth in the animal feed production in Kenya accompanied by the rise of the unregulated animal feed mills raised the levels of grain dust hazards to the workers. These hazards and the health outcomes have not been ...
Illegal electricity connections are common malpractice in the developing countries. Power theft has resulted in more losses at the distribution side incurred by service providers. The utility supplier experiences economical ...
Throughout the growth of the energy industry in the world, photovoltaics have received a trajectory of growth. This has witnessed many plants being installed to augment the existing grid or as alternatives to those living ...
Fokui, Willy Stephen Tounsi; Saulo, Michael; Ngoo, Livingstone(JKUAT-COETEC, 2024-05-31)
Power systems analysis also called load flow analysis is a very crucial aspect of power systems as it helps in enabling the effective planning and operation of the power system. The prime objective of load flow analysis ...
Low quality brine discharged from the separator at Olkaria II power plant is normally reinjected back into the ground. Utilizing waste brine in an organic rankine cycle technology can result in cycle efficiency of around ...
Kilee, Mercy N.; Oketch, Peter O.; Ndiritu, Hiram M.(JKUAT-COETEC, 2024-05-31)
Coco peat is a light soil-like material that is created as a by-product of the extraction of coco coir from coconut fibre. When wet, coco peat is a bulky material and possess a challenge in transportation. Drying removes ...