Characterization of the sandblasted glass degradation by light scattering

Benterki, Smail; Bousbaa, C.; Laouar, Naamane; Faci, Abdelaziz

doi:10.1016/j.ijleo.2017.12.137

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…The research carried out pertain to the quest for blends containing ecologically friendly fuels [1], adaptation of the existing devices to burn them [2], and studies on systems affecting the safety and comfort of the journey [3]. It pertains not only to thermal & humidity conditions referred by human, but also to providing a proper visibility through the window panes and an appropriate air purity what was shown by Benterki et al in [4]. Moreover, these systems should provide a possibility to adjust the air temperature, mass flow and its distribution to proper zones of the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis of the car windscreen

2019

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The task of the ventilation and heating/cooling system in cars is to maintain the thermal comfort conditions in the passenger compartment to ensure safe driving. Designing such systems requires knowledge of many physical parameters, which often have to be specified individually. Such factors include heat transfer coefficients. The paper presents the results concerning the determination of the local heat transfer coefficients at the interface between the car windscreen and the cooling air from the inner side of the passenger compartment. The temperature of the outer side of the vehicle windscreen was measured using infrared thermography. The 2D mathematical approach describing the steady state heat transfer on a car windscreen was proposed. The temperature distribution was determined by the Trefftz method, and the heat transfer coefficient at the air–vehicle windscreen interface was calculated using the third type boundary condition. Graphs were used to represent thermographic images of the vehicle windshield, its temperature distribution, and corresponding values of local heat transfer coefficients as a function the length of the windshield. Results are presented and discussed.

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Section: Introductionmentioning

confidence: 99%

Thermal analysis of the car windscreen

2019

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“…In previous works, the effect of erosion by sandblasting on driver vision through windshields was studied. The limit value for good vision was determined taking into account the roughness and the sand grains size chosen in the range [200 ÷ 350] μm.…”

Section: Introductionmentioning

confidence: 99%

A windshields surface characterization damaged by sandblasting

Benterki

Faci

Bouaouadja

2019

Int J of Appl Glass Sci

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The present work is part of a study of windshield glass erosion subjected to the Saharan sand particles projection. The objective is to highlight the effect of the sand grains size Ps on the degradation process of the ordinary glasses surface (damage rate Dr) and to search the visibility limit of vehicles' drivers. Various erosion tests are carried out and have led to different surface states by varying the sand mass Mp and the particles size Ps. The effect of the surface damage on root mean square roughness Rq, damage rate Dr, and optical transmission To are presented. A clear dependence between these three parameters and the particles size has been highlighted. The results show that Rq increases linearly with Ps increasing, whereas the Dr variation in function of Ps obeys a Gaussian function. In addition, a good correlation between the optical transmission loss and the damage rate is found. In terms of the driver's good vision, the damage of the windshield surface depends essentially on the parameter Dr. Therefore, the visibility limit is determined with regard to this parameter which is dependent on the sand particles size.

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