Cooling effect potential from liquefied petroleum gas flow in the fuel line of vehicle

Abstract

This paper presents a simulation of the potential cooling effect that can be harvested from the Liquefied Petroleum Gas (LPG) phase change process on the fuel line before being supplied to the combustion chamber. The composition of LPG used was obtained from the average test result of the samples taken periodically in the fuel line with a special gas syringe which were then injected into Gas Chromatography-Mass Spectrometry (GC-MS). Effect of fluctuations of LPG composition was also analysed on the energy delivery to the combustion chamber. Furthermore, simulation results showed that the potential cooling that may be harvested from the LPG fuel system on a 2000 cm 3 engine was 1.4 kW in the eco-driving mode to be used as a cabin cooler. For a small passenger car that has a cooling load of 3.5 kW, this means the cooling effect from the fuel system is capable of contributing 40% to the cooling load. In conclusion, this potential is very promising and can be applied to countries that not do have the winter experience.

Development of evaporative intercooler heat exchanger for vehicle charge air enhancement using CFD simulation

“…The theoretical and CFD study shows a significant thermal performance influence than the other designs of IHE presented in literature, which introduce better study range and performance for CAC influence engine operation as shown in Table 2, which presents the theoretical effect of air charge temperature on engine thermal performance and fuel consumption as presented by Yan et al [5]; Moahamad [6], the engine performance increase with a decrease in ambient temperature. Flexibility in design method introduced a significant design control scale as in case of pressure drop, which introduced a multi-scale option for designer for selection compare with other IHE designs presented by Cuong et al [21]; Richard et al [22]; Wang and Ming [23]; M. Setiyo [24] ,which didn't presented any flexibility in their design scale control. Therefore, consideration to scale size of IHE becomes an important concern in vehicle designs as mentioned by Andreas and Marco [26].…”

“…Wang et al [23]; they designed the IHE by using thermoelectric solid surface presenting a new cooling technique. Optimizing the structure of the IHE designs resulted in various designs developed shapes with use of alternative mediums, depending on the cooling capacity and medium used for CAC inlet independence of the engine [24].…”

Energy Efficiency Ratio (EER) of Novel Air Conditioning System on LPG Fuelled Vehicle: A Lab-Scale Investigation

“…The solid marker plotted in the graph shows the design operating condition of the test rig. In particular, it is assumed that the maximum LPG mass flow rate of 6 g/s and the evaporator outlet-to-inlet enthalpy change is 298.6 kJ kg -1 and there is no change in the composition of LPG [32]. So, the associated cooling power is 1.79 kW.…”