Update fuel consumption rates depending on resistivity wheel rolling on a winter forest road Komi Republic

2015 ◽  
Vol 3 (2) ◽  
pp. 236-239
Author(s):  
S. Korol ◽  
E. Pervakova
Keyword(s):  
Fuel Consumption ◽  
Komi Republic ◽  
Forest Road ◽  
Wheel Rolling ◽  
Consumption Rates

Labor Productivity and Managerial Efficiency against a Static Technology: The Pennsylvania Iron Industry, 1750–1800

1980 ◽  
Vol 40 (1) ◽  
pp. 129-136 ◽  
Author(s):  
Paul F. Paskoff
Keyword(s):  
Eighteenth Century ◽  
Fuel Consumption ◽  
Labor Productivity ◽  
Learning By Doing ◽  
Iron Industry ◽  
Managerial Efficiency ◽  
Before And After ◽  
Consumption Rates ◽  
The Face

An increase in labor productivity and a reduction of fuel consumption rates were two notable and closely related achievements of the management of Hopewell Forge, an ironworks in eighteenth-century Pennsylvania. Significantly, these economies were realized in the face of technological stasis through learning by doing. The analysis of this accomplishment is cast in the larger context of the performance of the iron industry before and after 1800.

scholarly journals ANALYSIS OF FUEL CONSUMPTION SENSITIVITY IN FORESTRY ROAD TRANSPORT

FLORESTA ◽  
2019 ◽  
Vol 49 (2) ◽  
pp. 155 ◽  
Author(s):  
Pompeu Paes Guimarães ◽  
Julio Eduardo Arce ◽  
Eduardo Da Silva Lopes ◽  
Nilton Cesar Fiedler ◽  
Renato César Gonçalves Robert ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Load Capacity ◽  
Road Transport ◽  
Forest Road ◽  
Articulated Vehicle ◽  
Transport Cycle ◽  
Total Transport ◽  
Cycle Loading ◽  
Telemetric System ◽  
Industrial Unit

The objective of this work was to analyze how the variation of traveled distance, operational speed, journey time and net cargo transported influence the fuel consumption of vehicles in forest road transport. The data were collected in this operation, covering the area between the regions of Campo do Tenente (forest unit) and Piên (industrial unit), in the state of Paraná. We analyzed the partial elements, loaded trip and empty trip, as well as the total transport cycle (loading, unloading and travel). Using the same mechanical tractor, two vehicular compositions were studied, an articulated vehicle (truck tractor + semitrailer + trailer) and a conjugated vehicle (truck tractor + semitrailer). The vehicle telemetric system was used to perform the data collection of travel time, traveled distance, speed average and fuel consumption of the both vehicles. The results showed that the higher fuel consumption occurred in the loaded trips for longer distances. The sensitivity of fuel consumption was mostly influenced by was traveled distance, so it is recommended the use of vehicles of less load capacity for shorter distances.

The Allison 570/571 Gas Turbine for Patrol Boat Power

1986 ◽  
Author(s):  
John E. Roberts
Keyword(s):  
Gas Turbine ◽  
Fuel Consumption ◽  
Power Density ◽  
Design Features ◽  
Excellent Performance ◽  
Turbine Engine ◽  
Consumption Rates ◽  
Hull Forms ◽  
Main Components ◽  
Density Ratios

This paper discusses the use of 570/571-KF engine in patrol boat propulsion applications. The text is composed of two basic sections — 1. The Engine, and 2. The Applications: The engine section includes a brief review of the background and development of this free turbine engine, as well as a description of the main components and design features. The performance characteristics and fuel consumption rates are discussed relative to patrol missions. In the applications section a comparison is made of the current 570 installations (both civil and military), along with a survey of the planned applications. Finally a review of proposed uses of these engines in other naval vessels is included to show the adaptability of this size engine in FPB and PB missions, and demonstrate the feasibility of retrofitting other turbine or diesel powered patrol boats with 570/571-KF engines. The conclusion is drawn that for patrol boats with conventional or modified hull forms, the Allison 570/571 engines are well suited due to their excellent performance and power density ratios.

scholarly journals Analysis of driving behaviours of truck drivers using motorway tests

2020 ◽  
Vol 234 (13) ◽  
pp. 3103-3111 ◽  
Author(s):  
Jianbing Gao ◽  
Haibo Chen ◽  
Kaushali Dave ◽  
Junyan Chen ◽  
Ying Li ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Fossil Fuel ◽  
Dominant Role ◽  
Acceleration Process ◽  
Fuel Saving ◽  
Normal Distributions ◽  
The Road ◽  
Consumption Rates ◽  
Potential Benefits ◽  
On The Road

Road transportations still play a dominant role in goods delivery, and driving behaviours significantly affect the fuel economy of heavy-duty trucks. Plenty of fossil fuel is wasted as a result of unreasonable driving behaviours even in the case of highly experienced drivers. The objective of this paper is to analyse drivers’ behaviours over two segments of motorways and estimate the potential benefits of fuel saving caused by a change in driving habits during national and international goods delivery. Drivers’ habits on motorways change depending on the road situations. In the acceleration process, the fuel consumption rates are huge even under low-speed conditions. The truck fuel consumption rates are exaggerated by positive road slopes, but still dominated by acceleration. Accelerations are generally in normal distributions, with the median value being approximately 0.5 m/s2. The speed ranges corresponding to each gear enlarge with the increase in gear number. The potentials of annual fuel saving for parts of European Union countries are nearly 2 × 106 m3 by adopting proper driving behaviours.

scholarly journals Engine performance of blends of palm kernel oil biodiesel under varying speed at constant torque

2020 ◽  
Vol 39 (3) ◽  
pp. 761-766
Author(s):  
J.N. Nwakaire ◽  
O.F. Obi ◽  
C.J. Ohagwu ◽  
C.C. Anyadike ◽  
I.E. Ugwu ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Palm Kernel ◽  
Engine Performance ◽  
Biofuel Production ◽  
Brake Thermal Efficiency ◽  
Kernel Oil ◽  
Constant Torque ◽  
Consumption Rates ◽  
Test Fuel

This study conducts a comparative evaluation the effect of using palm kernel oil (PKO), pure petroleum diesel and their blends (B5, B10, B20, B30, B40, and B100), on the performance of a four-cylinder CI diesel engine (David Brown 990: 58hp; 2WD), at Farm Power and Machinery Test laboratory Centre (FPMTLC), Department of Agricultural and Bioresources Engineering, University of Nigeria, Nsukka. The objective of the study was to determine the fuel consumption rates, energy expended, brake specific fuel consumption, and brake thermal efficiency, under varying operating speeds (700 – 1900rpm) at constant torque. Each fuel test was conducted using the Heenan-Froude hydraulic dynamometer engine-test-bed; pure petroleum diesel (B0) was used to generate the baseline data. Variables calculated were analyzed, then compared with each other to determine the differences in the engine performance and also to determine the optimum test fuel. The results obtained show that B10 had the overall optimum energy output, fuel consumption rates, and brake specific fuel consumption of 5431.809J, 3.42E-07 m3/s, and 0.16569l/KWh, respectively at the highest engine speed of 1900. B10 had an excellent brake thermal efficiency of 60.6% but was not better than B100, which showed a higher value of 66.95%. From the analysis, B10 is the optimum test fuel and can be used as an alternative fuel in David Brown 990 (58hp; 2WD) or similar CI diesel engines without any engine modification, even though B100 showed potential as an alternative to fossil diesel. Biofuel production grows through integrated aquaculture and algae production; the algae oil will serve as a raw material for biofuel production Keywords: Blends, Biodiesel, Brake Specific Consumption, Diesel Engine, Fuel Consumption rate, Thermal Efficiency.

scholarly journals Comparative economic efficiency, operating costs and fuel consumption rates of freight transport modes between the largest industrial cities and seaports in South Africa

2013 ◽  
Vol 3 (3) ◽  
pp. 16-27
Author(s):  
Wessel Pienaar
Keyword(s):  
Fuel Consumption ◽  
Operating Cost ◽  
Freight Transport ◽  
Research Approach ◽  
Cost Structures ◽  
Industrial Cities ◽  
Transport Industry ◽  
Consumption Rates ◽  
Enhance Efficiency ◽  
The Cost

The paper deals with aspects of efficiency within the five modes of freight transport, with special reference to the operating cost and fuel consumption rates between South Africa’s largest industrial cities and seaports. In particular, the paper deals with (a) the opportunities that exist for the achievement of efficiency in freight transport; (b) the subgroups of economies that can enhance efficiency attainment in the freight transport industry; (c) prevailing cost structures, operating cost and fuel consumption rates within the five modes of freight transport; and (d) the salient economic features of the freight transport market. The research approach and methodology combine (a) a literature survey; (b) empiric research, (c) an analysis of the cost structures of freight transport operators from different modes of transport; and (d) interviews conducted with specialists in the freight transport industry.

scholarly journals Empirical Models for Power and Energy Requirements II : A Powered Implement Operation in Serdang Sandy Clay Loam, Malaysia

2017 ◽  
Vol 20 (3&4) ◽  
pp. 349-360
Author(s):  
A. F. Kheiralla ◽  
A. Yahya ◽  
M. Zohadie ◽  
W. Ishak
Keyword(s):  
Regression Analysis ◽  
Fuel Consumption ◽  
Specific Energy ◽  
Travel Speed ◽  
Energy Requirements ◽  
Clay Loam ◽  
Sandy Clay Loam ◽  
Sandy Clay ◽  
Consumption Rates ◽  
Power And Energy

Power and energy requirements were measured with an instrumented tractor for rotary tilling in Serdang sandy clay loam soil.  The effects of travel speed and rotor speed upon the measured data were investigated.  Power model from orthogonal regression analysis was formulated based on linear and quadratic functions of travel speed and bite length.  Fuel consumption model from regression analysis was formulated based on linear tractor PTO power as well as linear equivalent tractor PTO power.  Fuel consumption rates predicted by ASAE D497.3 were found to be 25% to 28% overestimates of the values predicted by the model developed.  However, fuel consumption rates reported by OECD Tractor Test were found to be 1% to 9% lower than the fuel consumption rates predicted by the model developed.  A comparison of power and energy requirements for both powered and draught implements showed that the disk harrow was the most energy efficient implement in terms of fuel consumption and specific energy followed by the rotary tiller, disk plough and mouldboard.  Finally, average PTO power, fuel consumption, wheel slip, wheel power and specific energy for a powered implement are presented.

scholarly journals Biomass burning fuel consumption rates: a field measurement database

2014 ◽  
Vol 11 (24) ◽  
pp. 7305-7329 ◽  
Author(s):  
T. T. van Leeuwen ◽  
G. R. van der Werf ◽  
A. A. Hoffmann ◽  
R. G. Detmers ◽  
G. Rücker ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Regional Differences ◽  
Burned Area ◽  
Regional Variability ◽  
Large Variability ◽  
Fire Emissions ◽  
Area Burned ◽  
Biogeochemical Models ◽  
Consumption Rates ◽  
The Usa

Abstract. Landscape fires show large variability in the amount of biomass or fuel consumed per unit area burned. Fuel consumption (FC) depends on the biomass available to burn and the fraction of the biomass that is actually combusted, and can be combined with estimates of area burned to assess emissions. While burned area can be detected from space and estimates are becoming more reliable due to improved algorithms and sensors, FC is usually modeled or taken selectively from the literature. We compiled the peer-reviewed literature on FC for various biomes and fuel categories to understand FC and its variability better, and to provide a database that can be used to constrain biogeochemical models with fire modules. We compiled in total 77 studies covering 11 biomes including savanna (15 studies, average FC of 4.6 t DM (dry matter) ha−1 with a standard deviation of 2.2), tropical forest (n = 19, FC = 126 ± 77), temperate forest (n = 12, FC = 58 ± 72), boreal forest (n = 16, FC = 35 ± 24), pasture (n = 4, FC = 28 ± 9.3), shifting cultivation (n = 2, FC = 23, with a range of 4.0–43), crop residue (n = 4, FC = 6.5 ± 9.0), chaparral (n = 3, FC = 27 ± 19), tropical peatland (n = 4, FC = 314 ± 196), boreal peatland (n = 2, FC = 42 [42–43]), and tundra (n = 1, FC = 40). Within biomes the regional variability in the number of measurements was sometimes large, with e.g. only three measurement locations in boreal Russia and 35 sites in North America. Substantial regional differences in FC were found within the defined biomes: for example, FC of temperate pine forests in the USA was 37% lower than Australian forests dominated by eucalypt trees. Besides showing the differences between biomes, FC estimates were also grouped into different fuel classes. Our results highlight the large variability in FC, not only between biomes but also within biomes and fuel classes. This implies that substantial uncertainties are associated with using biome-averaged values to represent FC for whole biomes. Comparing the compiled FC values with co-located Global Fire Emissions Database version 3 (GFED3) FC indicates that modeling studies that aim to represent variability in FC also within biomes, still require improvements as they have difficulty in representing the dynamics governing FC.

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