The Measurement of Fuel Consumption under Hot Ambient Temperature in Kuwait City

2017 ◽  
Vol 4 (3) ◽  
pp. 1-5
Author(s):  
Mukhtar M A.Morad ◽  
◽  
Abdulwahab A Alnaqi ◽  
Ahmad E Murad ◽  
Nawaf Alhaifi ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Fuel Consumption

Analysis of temperature and altitude effects on the Global Energy Balance during WLTC

2021 ◽  
pp. 146808742110342
Author(s):  
Francisco Payri ◽  
Jaime Martín ◽  
Francisco José Arnau ◽  
Sushma Artham
Keyword(s):  
Energy Balance ◽  
Ambient Temperature ◽  
Fuel Consumption ◽  
Experimental Measurements ◽  
Compression Ignition ◽  
Oil Viscosity ◽  
Compression Ignition Engine ◽  
Global Energy ◽  
Global Energy Balance ◽  
L Compression

In this work, the Global Energy Balance (GEB) of a 1.6 L compression ignition engine is analyzed during WLTC using a combination of experimental measurements and simulations, by means of a Virtual Engine. The energy split considers all the relevant energy terms at two starting temperatures (20°C and 7°C) and two altitudes (0 and 1000 m). It is shown that reducing ambient temperature from 20°C to −7°C decreases brake efficiency by 1% and increases fuel consumption by 4%, mainly because of the higher friction due to the higher oil viscosity, while the effect of increasing altitude 1000 m decreases brake efficiency by 0.8% and increases fuel consumption by 2.5% in the WLTC mainly due to the change in pumping. In addition, GEB shows that ambient temperature is affecting exhaust enthalpy by 4.5%, heat rejection to coolant by 2%, and heat accumulated in the block by 2.5%, while altitude does not show any remarkable variations other than pumping and break power.

Evaluation of hot water storage strategy in internal combustion engine on different driving cycles using numerical simulations

2017 ◽  
Vol 232 (8) ◽  
pp. 1019-1035 ◽  
Author(s):  
Hanna Sara ◽  
David Chalet ◽  
Mickaël Cormerais ◽  
Jean-François Hetet
Keyword(s):  
Ambient Temperature ◽  
Fuel Consumption ◽  
Thermal Management ◽  
Negative Impact ◽  
Combustion Engine ◽  
Driving Cycle ◽  
Hot Water ◽  
Pollutant Emissions ◽  
Engine Model ◽  
Driving Cycles

Since the main interest worldwide of green environment companies is to reduce pollutant emissions, the automotive industry is aiming to improve engine efficiency in order to reduce fuel consumption. Recently, studies have been shifted from upgrading the engine to the auxiliary systems attached to it. Thermal management is one of the successful fields that has shown promise in minimizing fuel consumption and reducing pollutant emissions. Throughout this work, a four-cylinder turbocharged diesel engine model was developed on GT-Power. Also, a thermal code has been developed in parallel on GT-Suite, in which the different parts of the coolant and lubricant circuits were modeled and calibrated to have the best agreement with the temperature profile of the two fluids in the system. Once the model was verified, hot coolant storage, a thermal management strategy, was applied to the system to assess the fuel consumption gain. The storage tank was located downstream the thermostat and upstream the radiator with three valves to control the coolant flow. The place was chosen to avoid negative impact on the cold start-up of the engine when the tank is at the ambient temperature. This strategy was applied on different driving cycles such as the NEDC, WLTC, CADC (urban and highway), and an in-house developed driving cycle. The ambient temperature was varied between −7°C to represent the coldest winter and 20°C. The results of this study summarize the ability of the hot coolant storage strategy in reducing the fuel consumption, and show the best driving cycle that needs to be applied on along with the influence of the different ambient temperatures.

Nominated Lecture: Performance and Operation of Spark-Ignited Gas Engines

1966 ◽  
Vol 181 (1) ◽  
pp. 900-922 ◽  
Author(s):  
Malcolm L. Land
Keyword(s):  
Ambient Temperature ◽  
Fuel Consumption ◽  
Temperature Variation ◽  
Constant Pressure ◽  
Engine Performance ◽  
Chemical Processing ◽  
Load Variation ◽  
Extended Discussion ◽  
Stroke Cycle ◽  
Engine Compressors

The author discusses the application of spark-ignited gas engines to such services as gas transmission, gas gathering and chemical processing with integral angle engine-compressors as well as directly coupled units. The author also treats such performance aspects of two-and four-stroke cycle spark-ignited gas engines as: fuel consumption, cyclic dispersion in combustion, accommodation of ambient temperature variation, load variation and altitude. There is an extended discussion of pulse and constant pressure turbocharger characteristics and their influence on engine performance. Important hardware considerations are given, such as design of valves and valve inserts, cylinder heads and pistons.

scholarly journals Analysis of Ambient Temperature Effect on Gas Turbine Centaur 40 at Sepinggan Production Field, Chevron Indonesia Company

2019 ◽  
Vol 3 (2) ◽  
pp. 29
Author(s):  
Muhammad Adib
Keyword(s):  
Ambient Temperature ◽  
Gas Turbine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Gas Flow ◽  
Specific Fuel Consumption ◽  
Ambient Temperatures ◽  
Optimal Output ◽  
Power Turbine ◽  
Calculation Results

               Gas turbine Centaur 40 drive gas compressor operates 24 hours a day and continuously with monitored output parameters, namely pressure and the gas flow capacity In its operation, it is often found that the optimal output parameters are generated during low ambient temperatures, for example in the night, cloudy and rainy. This study is aimed to determine the effect of changes in ambient temperature on the gas turbine power. During operation and research was done, the independent variable used is ambient temperature at 24 – 33 0C at constant 100% rotation of the turbine shaft. The decrease in gas turbine performance is seen from the increase in Specific Fuel Consumption (SFC), a decrease in the power produced and thermal efficiency. Specific fuel consumption value from the calculation results is 0.06072 kg/kW.h at 24 0C ambient temperature and 0.06565 kg/kW.h at 33 0C ambient temperature. Power produced by the power turbine is 3532,657 HP at 24 0C ambient temperature and 3046,557 HP at 33 0C ambient temperature, while the thermal efficiency cycle is 54,159% at 24 0C ambient temperature and 49,727% at 33 0C ambient temperature. Keywords: gas turbine, ambient temperature, specific fuel consumption, thermal efficiency.

Fuel consumption and aftertreatment thermal management synergy in compression ignition engines at variable altitude and ambient temperature

2021 ◽  
pp. 146808742110350
Author(s):  
Vicente Bermúdez ◽  
José Ramón Serrano ◽  
Pedro Piqueras ◽  
Bárbara Diesel
Keyword(s):  
Ambient Temperature ◽  
Fuel Consumption ◽  
Pressure Ratio ◽  
Real Life ◽  
Exhaust Gas Recirculation ◽  
Pollutant Emissions ◽  
Boost Pressure ◽  
Exhaust Gas ◽  
Altitude Effect ◽  
Gas Recirculation

New regulations applied to the transportation sector are widening the operation range where the pollutant emissions are evaluated. Besides ambient temperature, the driving altitude is also considered to reduce the gap between regulated and real-life emissions. The altitude effect on the engine performance is usually overcome by acting on the turbocharger control. The traditional strategy assumes to keep (or even to increase) the boost pressure, that is, compressor pressure ratio increase, as the altitude is increased to offset the ambient density reduction, followed by the reduction of the exhaust gas recirculation to reach the targeted engine torque. However, this is done at the expense of an increase on fuel consumption and emissions. This work remarks experimentally the importance of a detailed understanding of the effects of the boost pressure and low-pressure exhaust gas recirculation (LP-EGR) settings when the engine runs low partial loads at different altitudes, accounting for extreme warm and cold ambient temperatures. The experimental results allow defining and justifying clear guidelines for an optimal engine calibration. Opposite to traditional strategies, a proper calibration of the boost pressure and LP-EGR enables reductions in specific fuel consumption along with the gas temperature increase at the exhaust aftertreatment system.

Influence of ambient temperature on diesel engine raw pollutants and fuel consumption in different driving cycles

2018 ◽  
Vol 20 (8-9) ◽  
pp. 877-888 ◽  
Author(s):  
José Manuel Luján ◽  
Héctor Climent ◽  
Santiago Ruiz ◽  
Ausias Moratal
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Ambient Temperature ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Point Of View ◽  
Pollutant Emissions ◽  
Ambient Temperatures ◽  
Driving Cycles ◽  
Light Duty

The effect of low ambient temperature on diesel raw pollutant emissions is analysed in two different driving cycles: NEDC and WLTC. The study is focused on hydrocarbons, carbon monoxide, nitrogen oxides and fuel consumption. Tests are conducted at cold start in a HSDI light-duty diesel engine with two levels of ambient temperature: 20 °C and −7 °C. Results showed a general detriment of pollutant emissions and break thermal efficiency at low ambient temperatures. NOx is increased around 250% in both cycles when running at low temperatures. Effect on hydrocarbons is more noticeable in the NEDC, where it rises in 270%, compared with the 150% of increase in the WLTC. In the case of carbon monoxide, uncorrelated tendencies are observed between both driving cycles. Concerning the NEDC, carbon monoxide emissions increase up to 125%, while at the WLTC, they are reduced up to 20%. Finally, from the point of view of the thermal efficiency, a reduction of nearly 10% in the NEDC is observed. However, no fuel penalty is spotted regarding the WLTC.

scholarly journals STUDY AND SIMULATION OF THE FUEL CONSUMPTION OF A VEHICLE WITH RESPECT TO AMBIENT TEMPERATURE AND WEATHER CONDITIONS

2020 ◽  
Vol 7 (1) ◽  
pp. 24-35
Author(s):  
Mbelle Bisong Samuel ◽  
Paune Felix ◽  
Youmene Nongosso Miguel ◽  
Tambere Samam Cyrille ◽  
Pierre Kisito Talla
Keyword(s):  
Mathematical Model ◽  
Ambient Temperature ◽  
Fuel Consumption ◽  
Weather Conditions ◽  
The State ◽  
Microsoft Excel ◽  
Greenhouse Emissions ◽  
Standard Operating ◽  
Main Factors ◽  
The Impact

The consumption of fuel in vehicles depends on many factors such as the state of the roads, the state of the engine and the driver’s behavior. A mathematical model for evaluating vehicle fuel consumption on a 100 km interval at standard operating weather conditions was developed. This mathematical model developed took into consideration many factors, but the main factors were those related to weather conditions and temperature. Here a new simulation program for determining the influence of temperature and weather conditions on fuel consumption is built using the software Matlab. For efficient simulations the model uses a set of data for an SUV and then makes varying only the parameters that are related to weather and temperature for the simulation. During the simulation process, a set of 10 vehicle models and 8 roads conditions were chosen to run down the simulations and only the parameters of temperature, the drag coefficient and coefficient of rolling resistances respectively were subjected to variations during each of the simulations. Upon simulation, different results were obtained for the different parameters considered. For every 15% drop in temperature, 0.1litre, 0.12litre and 0.04litre increase in fuel consumption for the set of parameters chosen was noticed. These results were analyzed and interpreted with the help of Microsoft Excel and were found to be satisfactory given that it permits manufacturers and car users to have a notion of the impact of ambient temperature and weather conditions on fuel consumption, thereby promoting optimum usage of fuel, hence reducing the effect of greenhouse emissions in the atmosphere.

Sign in / Sign up

Export Citation Format

Share Document