Diesel engine heat rejection and cooling

Xin, Qianfan

doi:10.1533/9780857090836.4.825

Cited by 2 publications

(4 citation statements)

References 90 publications

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“…Overcooling causes the same impact as overheating (Anwar & Oktofan, 2020). Engines that operate below normal temperatures produce poor combustion, fuel waste, excessive heat dissipation, high wear on piston rings and liners, and high friction and noise (Xin, 2013). In addition, the condition of the overcooling cylinder causes the addition of corrosive and destructive acids (Sabde et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Some of the consequences that occur due to the influence of overcooling conditions include faster wear (Deng et al, 2018); (Xin, 2013); (Lodi et al, 2020). This is because lubrication is not complete when the temperature is still cold and has high emissions (Deng et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…This is because lubrication is not complete when the temperature is still cold and has high emissions (Deng et al, 2018). Engines that run at temperatures lower than working temperatures will produce CO, NOx, and HC pollutants that are more fuel-wasteful (Xin, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Application of Bypass Heater System for Prevention of Overcooling in Diesel Engines

Darmansyah

Khalid

Kasim

et al. 2023

JSA

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Industrial and agency activities are currently strongly influenced by electricity supply from PLN. When the PLN electricity goes out, the generator will immediately turn on and all loads previously electrified by PLN power will move to the generator. This displacement occurs quickly and not gradually. Diesel engines (engines) will receive high loads when conditions are still not hot. Diesel engines take longer to heat compared to gasoline engines. This condition is referred to as overcooling. This study uses a bypass heater system to accelerate the heating process and prevent overcooling. From experiments that have been conducted show that the use of a heater as 3000 W for generators with a size of 400 kVa can reduce the heating period by 17 minutes (54%). In addition, it can reduce fuel consumption by an average of 0.5 lt/h during the heating period

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Application of Bypass Heater System for Prevention of Overcooling in Diesel Engines

Darmansyah

Khalid

Kasim

et al. 2023

JSA

View full text Add to dashboard Cite

show abstract

“…According to [1] the total rubbing friction can be estimated by subtracting the numerically determined pumping loss and accessory power from the measured engine motoring power.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Flow Resistance of Fluids Flowing in the Engine Oil-Cooler Chosen

et al. 2021

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Oil-coolers are necessary components in high performance diesel engines. The heat removed by the cooler is a component in the total heat rejection via the engine coolant. Oil-cooler absorbs the heat rejected during the piston cooling and engine rubbing friction power loss. During flows of both coolant and engine oil via the oil-cooler, some flow resistances occur. The aim of the study is to determine values of the flow resistance coefficient for oil going through the cooler at various temperatures. The test stand was developed to determine time needed to empty tanks from liquids flowing through oil-cooler. The flow model was elaborated to study the mentioned flow resistance coefficient with respect to changing liquid temperature. The 20 °C increase in liquid temperature resulted in a flow resistance coefficient decrease of 30% for coolant and of the much more for engine oil. It was found that better results would be achieved with flows forced by means of pumps instead of using gravitational forces on the test stand.

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Diesel engine heat rejection and cooling

Cited by 2 publications

References 90 publications

Application of Bypass Heater System for Prevention of Overcooling in Diesel Engines

Application of Bypass Heater System for Prevention of Overcooling in Diesel Engines

A Study on the Flow Resistance of Fluids Flowing in the Engine Oil-Cooler Chosen

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