پیوندهای مفید
آمار
| تعداد نشریات | 22 |
| تعداد شمارهها | 709 |
| تعداد مقالات | 10,206 |
| تعداد مشاهده مقاله | 71,649,665 |
| تعداد دریافت فایل اصل مقاله | 63,455,654 |
Design and construction solar steam sterilizer | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 207، دوره 13، شماره 1، خرداد 2022، صفحه 2535-2547 اصل مقاله (957.87 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2022.5955 | ||
| نویسندگان | ||
| Mohammed Hassan Abbood* 1؛ Farhan Lafta Rashid2؛ Mohammed Mohsen Jassim1 | ||
| 1Mechanical Engineering Department, College of Engineering, University of Kerbala, Karbala, Iraq | ||
| 2Petroleum Engineering Department, College of Engineering, University of Kerbala, Karbala, Iraq | ||
| تاریخ دریافت: 24 شهریور 1400، تاریخ بازنگری: 27 مهر 1400، تاریخ پذیرش: 16 آذر 1400 | ||
| چکیده | ||
| Doctors, especially surgeons in remote areas, need help to overcome the problem of transmission of infection resulting from the repeated use of surgical instruments without sterilization, and that is why researchers sought to find solutions. This study presented a design and model made for a low-cost solar sterilizer. It relied on benefits from the glasshouse properties to generate the wet steam that was required for sterilization at a temperature of $121.1^{\circ} C $ and a pressure of 2.1 bar inside an aluminium pressure cylinder that was placed inside an insulated chamber, whose dimensions were 50 cm wide, 30 cm high, and 93 cm deep. Its front face was made of 10 mm-thick thermal glass. The top face was used as a frame for fixing the cylinder. The outer surface of the cylinder was coated with matte black paint to increase heat absorption. The model was tested in the absence of surgical equipment using half a litre of pure water, and it took 128 minutes to achieve steam with the properties necessary for sterilization. The test started when the temperature of the water inside the cylinder was 56.1°C. In climatic conditions in which the average intensity of solar radiation was 903 W/m\textsuperscript{2} and the average ambient temperature was 34°C. Then the performance was tested with the presence of 1.2 kg of instruments. The presence of the surgical instruments increased the time required to achieve the temperature and pressure required for sterilization by 25.78\%. And to increase the thermal enablement of the system, reflective panels were placed to reflect the solar radiation towards the surface of the cylinder. This procedure achieved a 6.2\% reduction in the time required for the sterilization requirement for steam. The tests were conducted over several days and under different conditions, each achieving the necessary steam for sterilization. | ||
| کلیدواژهها | ||
| Solar energy؛ Solar autoclave؛ Solar steam sterilization | ||
| مراجع | ||
|
[1] H. Asfafaw, K. Ashenafi and Endalkache, Performance analysis of solar autoclave for rural health center, Momona Ethiopian J. Sci. 10(2) (2018) 163–179. [2] O. Garcıa- Valladares and N. Vel´azquez, Numerical simulation of parabolic trough solar collector: Improvement using counter flow concentric circular heat exchangers, Int. J. Heat Mass Transfer 52 (3-4) (2009) 597–609. [3] J.P. Holman, Heat Transfer, McGraw-Hill Inc., New York, 1986. [4] F.P. Incropera, Fundamentals of Heat and Mass Transfer, John Wiley & Sons, 2011. [5] H.M. Mussa and T.W.M. Salih, Thermal insulation performance of wood-plastic composite panels as alternative to alucobond cladding sheets for buildings, J. Engin. Sustain. Develop. 24 (2020) 425–433. [6] N.K. Sharma, I.K. Sharma, L. Sharma and P. Rajgopal, Design and development of solar autoclave, Indian J. Sci. Technol. 10(21) (2017) 1–6. [7] J.A. Duffie and W.A. Beckman, Solar Engineering of Thermal Processes, New York, Wiley, 1980. [8] S. S. Trabia, The design and testing of a solar autoclave with broad spectrum sterilization capabilities: the use of solar energy for powering a portable autoclave, J. Hospital Infect. 80 (2012) 345–347. [9] L.R.S. Vega, Modeling and experimental evaluation of a small-scale Fresnel solar concentrator system, Sanchez Vega Renew. 3(1) (2016) 1–8. [10] W.A. Rutala, J.W. David, Guideline for Disinfection and Sterilization in Healthcare Facilities, PhD Thesis, 2008. [11] L. Zhao and E. Wang, System can sterilize medical tools using solar heat, Sci. Daily, 2020. | ||
|
آمار تعداد مشاهده مقاله: 16,539 تعداد دریافت فایل اصل مقاله: 10,275 |
||