Publications


2002

M., PROFLUTIFELIX.  2002.  Luti, F.M. (2002). Fundamentals of Engineering Thermodynamics, University of Nairobi Press, Nairobi, ISBN 9966846530, 385 pp.. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract
Galactosaemia is a disorder of galactose metabolism in which raised levels of galactose and galactose-l-phosphate damage various organs. It is a very rare disease (incidence 1 in 60,000) and the diagnosis is often missed, leading to poor prognosis. A case of clinical galactosaemia that was diagnosed at the age of 11 months is reported. It is important to be aware of this condition as early treatment may prevent some of the complications.

1997

M., PROFLUTIFELIX.  1997.  Massaquoi, J.G.M and Luti, F.M. ed (1997). Quality Assurance and Relevance of Engineering Education in Africa. A Report of the Expert Group Meeting on Engineering Education in Africa, Gigiri, Nairobi, Kenya, November 20-21, 1997 62pp. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract
This report covers the deliberations of the Expert Group Meeting on Engineering Education in Africa, which was held at the UNESCO Nairobi Office, Kenya from 1-2 November 1995. It discusses the major problems facing engineering education and highlights some of constraints and presents recommendations for overcoming them. In particular the report makes recommendations on important factors such as finance, university-industry collaboration, student creativity, innovation in the delivery and administration of engineering education, training for self-employment, staff development and the amelioration of the brain-drain.

1995

1991

1990

M., PROFLUTIFELIX.  1990.  Kanyua, .J F. and Luti, F.M. (1990). Local manufacture and application of micro-hydropower units (mPHU) by informal sector (Jua Kali). Report prepared for United Nations Development Program (UNDP) October, 1990,86 pp.. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract
To identify the most appropriate technology and assess the possibility of manufacturing micro-hydropower units (mHPU) utilizing the skills available within the manufacturing informal sector in Kenya (Jua Kali). The units, which are not supposed to be sophisticated in design and performance, should provide acceptable efficiency and a power output of the order of 1 to 5 kVA, single phase.

1987

M., PROFLUTIFELIX.  1987.  Luti, F.M. (1987). Experimental modelling of axial temperature profiles of buoyant diffusion flames. African Journal of Science and Technology, Series A, vol. 6, no. 1, 76-80.. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract
Mean temperatures were measured along the axis of propane gas flames using a porous ceramic burner. Data for fire heat release rates ranging form 13.3kW to 30.6kW were taken and analyzed. It was found that the lower zone of a fire in a clam environment could be conveniently divided into three regions. For the same heat release rates, the fires were subjected to a cross flow of 0.72ms-1 and it was found that along the axis, the three zones could be identified. The excess temperature in the intermittent zone decreased with height to the power of 0.60 for the calm environment and 1.11 with crossflow. In the plume zone, excess temperature decreased with 1.87 power for the clam case and 2.05 with crossflow case, all data when plotted on log plots fell on a single curve.
M., PROFLUTIFELIX.  1987.  Luti, F.M. (1987). Experimental modelling of axial temperature profiles of buoyant diffusion flames. African Journal of Science and Technology, Series A, vol. 6, no. 1, 76-80.. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract
Mean temperatures were measured along the axis of propane gas flames using a porous ceramic burner. Data for fire heat release rates ranging form 13.3kW to 30.6kW were taken and analyzed. It was found that the lower zone of a fire in a clam environment could be conveniently divided into three regions. For the same heat release rates, the fires were subjected to a cross flow of 0.72ms-1 and it was found that along the axis, the three zones could be identified. The excess temperature in the intermittent zone decreased with height to the power of 0.60 for the calm environment and 1.11 with crossflow. In the plume zone, excess temperature decreased with 1.87 power for the clam case and 2.05 with crossflow case, all data when plotted on log plots fell on a single curve.

1981

1980

M., PROFLUTIFELIX.  1980.  Luti, F.M. (1980). Transient flow development due to a strong heat source in the atmosphere; Part I: Uniform temperature source. Combustion Science and Technology, 23, pp 163-75.. East Afr Med J. 1999 May;76(5):281-3.. : UN-HABITAT Abstract

This paper describes a finite difference experiment to simulate the transient development of the convection column above a strip of uniform high temperature source in a stratified uniform cross flow atmosphere. The k-e model of turbulence is used and an upstream weighted scheme for this vorticity-stream function formulation is employed. Some computation results for a 195m wide source are presented. The immediate goal of the undertaking was to devise a scheme which could yield realistic flow 'boundary conditions' in the immediate vicinity of a fire to enable one to model the detailed structure of the fire region. The predictions are quite consistent with observations and this provides the link between the heat source and environmental parameters. This scheme, together with a refined near zone fire model, can be used to describe the interplay between the heat source (fire) component and the environmental components of a mass fire system.

1976

Brzustowski, TA, Lutia MF.  1976.  Flow due to a two-dimensional heat source with cross flow in the atmosphere. AbstractWebsite

This paper presents a model describing the flow field due to a two-dimensional infinitely long heat source in a stably-stratified atmosphere with a uniform wind cross-flow. The governing equation which is valid for any wind shear is non-linear in its general form and is solved for uniform flow only. The energy equation is not solved but a “source” function is assumed. The results of this model exhibit some of the observed mass fire characteristics such as the inflow window, the pinch effect, the upstream downdraft and a strong dynamic convection column. Blocking and the formation of eddies are shown to be the most important characteristics of the onset of mass fire conditions.

1972

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