Evaluating The Long-Term Effects of Erosion-Corrosion on HVAC System Performance and Maintenance Costs

References

[1] L. Ahdieh, R. S. Klein, R. Burk, S. Cu-Uvin, P. Schuman, A. Duerr, M. Safaeian, J. Astemborski, R. Daniel, and K. Shah, (2001). Prevalence, Incidence, and Type-Specific Persistence of Human Papillomavirus in Human Immunodeficiency Virus (HIV)-Positive and HIV-Negative Women. Journal of Infectious Diseases, 184:682-690.

[2] Becketon, Dickinson (BD) FACS Count System User’s Guide for use with BD FACS Count. CD4+/CD3+ Reagent kit.

[3] C. W.Critchlow, K.K. Holmes, and R. Wood. (1992). Association of human immunodeficiency virus and anal human papillomavirus infection among homosexual men. Archives of Internal Medicine, 152:1673-1676.

[4] A. Dolei, S. Curreli, P. Marongiu, A. Pierangeli, E. Gomes, M. Bucci, C. Serra, and A. M. Degener. (1999). Human immunodeficiency virus infection in vitro activates naturally integrated human papillomavirus type 18 and induces synthesis of the L1 capsid protein. Journal of General Virology, 80:2937-2944.

[5] N.T. Ebisi. (2012) The impacts of culture on the transmission of infection: the case of Awka South, Anambra state. African Journal for Social Science, 2(4):173-190.

[6] E.A. Ezechi. (2014): The burden, distribution and risk factors for cervical oncogenic human papillomavirus infection in HIV positive Nigerian women. Virology Journal, 11:5-15.

[7] R. G. Fruchter, M. Maiman, A. Selis, L. Bartley, L. Camilien, and C.D. Arrastia. (1996). Multiple recurrences of cervical intraepithelial neoplasia in women with the human immunodeficiency virus. Obstetric and Gynecology, 87:338-344.

[8] J.C. Gage, K.O. Ajenifuja, N.A., Wentzensen, A.C. Adepiti, C. Eklund, M. Reilly, M. Hutchinson, S. Wacholder, J. Harford, A. S. Soliman, R.D. Burk, M. Schiffman. (2012). The age-specific prevalence of human papillomavirus and risk of cytologic abnormalities in rural Nigeria: implications for screen-and-treat strategies. International Journal of Cancer, 130:2111-2117.

[9] I. Heard, J. M. Tassie , V. Schmitz, L. Mandelbrot , M. D. Kazatchkine , and G. Orth . (2000). Increased risk of cervical disease among human immunodeficiency virus-infected women with severe immunosuppression and high human papillomavirus load(1). Obestetric and Gynecology, 96:403- 409.

[10] J. Palefsky. (2006). Biology of HPV in HIV infection. Adv Dent Res 19:99-105.

[11] J. Palefsky. (2009). Human papillomavirus-related disease in people with HIV. Current Opinion HIV and AIDS, 4(1):52-66.

[12] F. Piras, M. Piga, A. De Montis, A. R. Zannou, L. Minerba, M.T. Perra. (2012). Prevalence of human Papillomavirus infection in women in Benin, West Africa. Virology Journal, 8:514-521.

[13] M. Scott, M. Nakagawa, and A. B. Moscicki. (2001). Cell-Mediated Immune Response to Human Papillomavirus Infection. Clinical and Diagnostic Laboratory Immunology, 8:209-220.

[14] M. Stanley, 2006. Immune responses to human papillomavirus. Vaccine, 30:16-22.

[15] H. D. Strickler, R. D. Burk, M. Fazzari, K. Anastos, H. Minkoff, L. S. Massad. (2005). Natural history and possible reactivation of human papillomavirus in human immunodeficiency virus-positive women. Journal for National Cancer Institute, 97:577-586.

[16] X. W. Sun, T. V. Ellerbrock , O. Lungu, M. A. Chiasson , T. J. Bush , and Jr T. C. Wright . (1995). Human papillomavirus infection in human immunodeficiency virus-seropositive women. Obesteric and Gynecology, 85:680-686.

[17] J. O.Thomas, R. Herrero, A. A.Omigbodun,K. Ojemakinde, I. O. Ajayi, A. Fawole, O. Oladepo, J.S. Smith, A. Arslan, N. Munoz, P. J. F. Snijders, C. Meijer. (2004). Prevalence of papillomavirus infection in women in Ibadan, Nigeria: a population-based study. British Journal of Cancer, 90:638–645.

[18] WKEA Medical Supplies, Changchun, China. eileenwkea.en.ec2l.com/.

[19] World Health Organization. (2007). Methods of CD4+ T lymphocytes count measurement. Laboratory guidelines for enumerating CD4+ T lymphocytes in the context of HIV/AIDS, 4:29.

@article{1704104,
      author = {Hafiz Muneeb Ahmad},
      title = {Evaluating The Long-Term Effects of Erosion-Corrosion on HVAC System Performance and Maintenance Costs},
      journal = {Iconic Research And Engineering Journals},
      year = {2023},
      volume = {6},
      number = {8},
      pages = {260-267},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/17041041.pdf},
      abstract = {The objective of this study is to evaluate the long-term effects of erosion-corrosion on the performance of Heating, Ventilation, and Air Conditioning (HVAC) systems and to analyze the subsequent impact on maintenance costs. Erosion-corrosion, a prevalent issue in HVAC systems, leads to the degradation of system components, thereby affecting efficiency and operational costs. This research aims to provide a comprehensive understanding of how erosion-corrosion influences system performance over time and to identify strategies to mitigate its effects, ultimately reducing maintenance costs.This study employed a mixed-methods approach, combining quantitative data collection and qualitative analysis. Data was gathered from multiple sources including field measurements, laboratory tests, surveys, and interviews, as well as historical data analysis. HVAC systems in commercial buildings were monitored over a period of five years to collect data on system performance and maintenance records. Controlled experiments were conducted to simulate erosion-corrosion under varying conditions, using samples of commonly used HVAC materials. HVAC professionals and maintenance staff were surveyed and interviewed to gather insights on the prevalence of erosion-corrosion, its impact on system performance, and maintenance practices. Historical maintenance records and performance data from HVAC systems with known erosion-corrosion issues were analyzed to identify trends and correlations. Data analysis included statistical techniques to identify significant factors affecting HVAC performance, cost-benefit analysis to quantify the financial impact of erosion-corrosion, and thematic analysis of qualitative data to provide context and depth to the findings. The study revealed that erosion-corrosion significantly impacts HVAC system performance, leading to decreased efficiency, increased energy consumption, and more frequent system failures. Systems affected by erosion-corrosion showed an average decrease in efficiency of 15-20% over five years. Maintenance costs for systems with erosion-corrosion issues were, on average, 25-30% higher compared to systems without such issues. The lifespan of critical components such as pipes, coils, and valves was reduced by approximately 40% due to erosion-corrosion. Implementation of specific mitigation strategies, such as the use of corrosion-resistant materials and regular maintenance protocols, resulted in a significant reduction in erosion-corrosion rates and associated costs. The long-term effects of erosion-corrosion on HVAC systems are substantial, affecting both performance and maintenance costs. The study underscores the importance of proactive maintenance and the use of advanced materials to mitigate erosion-corrosion. By addressing these issues, HVAC system operators can enhance system efficiency, extend component lifespan, and reduce overall maintenance expenses. The findings provide valuable insights for HVAC professionals and stakeholders, guiding them towards more effective management practices and decision-making regarding system maintenance and material selection.},
      keywords = {HVAC Systems, Erosion-Corrosion, System Performance, Maintenance Costs, Long-Term Effects},
      month = {February},
  }