Journal of Logistics, Management and Engineering Sciences (JLMES)

Search results

Pipe Works in Oil and Gas Engineering

Shatta, D.N.

Factors Affecting Supply Chain Management and Customers’ Satisfaction of Gas Available in Tanzania: A Case of Dar Es Salaam City

Abstract: The study aimed at evaluating the factors affecting supply chain management and customers’ satisfaction of gas available in Dar es Salaam city. The study used realism approach to identify social realities. A survey design was used in which the researchers surveyed all three Municipal Councils of D [...] Read more

Pipe Works in Oil and Gas Engineering

Mwita L.C.

Evaluation of Compressor Anti-Surge Control During Unexpected Shutdown

Abstract: Compressors play significant roles in the oil and gas industries. Compressors’ operating points shift to the surge line during startup or emergency shutdown as the flow decreases. Surge causes a compressor to lose the ability to maintain peak head, causes the system to overheat, reduces discharge [...] Read more

Pipe Works in Oil and Gas Engineering

G.B. Gerutu

Transition to Compressed Natural Gas Rickshaws for Urban Mobility: a Case of Dar es Salaam City

Abstract: In Dar-es-Salaam, Tanzania, rickshaws are chiefly employed as taxis in short distant trips. However, due to increased demand and urban traffic congestion, rickshaws have become a major source of pollution in the city. Despite the abundance of natural gas in Dar-es-Salaam, there are no commercially s [...] Read more

Automobile Engineering

G.B. Gerutu

Risk Assessment for Battery Electric Vehicles’ Occupants during Fire Accident

Abstract: The battery electric vehicle (BEV) is a promising technology for decarbonizing cities and reducing reliance on fossil fuels. However, the main barrier to its widespread adoption is the issue of safety. This study evaluates the risk of BEV occupants after exposure to hydrogen fluoride (HF) gas and th [...] Read more

Automobile Engineering

Omari M. Khalfan, Christian Nabora, Prosper L. Mgaya

Experimental Investigation of Exhaust Gas Emission Status in Tanzania: A Case Study of National Institute of Transport Vehicle Inspection Center - Dar Es Salaam

Abstract: Exhaust gas emission is a by-product of air and fuel combustion in vehicle engines. It is a crucial contributing factor to air and environmental pollution that authorities emphasize controlling to mitigate the health and environmental hazards to communities. This was an experimental investigati [...] Read more

Civil and Transportation Engineering

Lameck Lugeiyamu, Elvis S K Mensahn, Marius Coffi Zonou

The Influence of Asphalt Concrete Underlayment on Slope Stability of the Ballasted High-speed Railways

Abstract: In recent years, a hot mix asphalt layer, known as an underlayment, has been replacing granular sub-ballast in high-speed and heavy haul tracks, aiming to overcome the limitations of traditional ballasted railways. However, there is a lack of literature regarding the impact of this layer on the slop [...] Read more

Civil and Transportation Engineering

Lameck Lugeiyamu

Structural Response of the Ballasted Railway Tracks with Partially Replaced Bitumen by Recycled Plastic Wastes

Abstract: This study addresses challenges of cracking and durability faced by conventional dense-graded asphalt mixtures (DGA) in hybrid railway tracks. Stone mastic asphalt (SMA), known for superior performance but hindered by cost, is explored as alternative with recycled polyethylene terephthalate (PET) to [...] Read more