Statistical Analysis of Weather Data of Abuja and Minna with Respect to Air Conditioning Processes

Olorunmaiye, J.A and Awolola, O.O (2021) Statistical Analysis of Weather Data of Abuja and Minna with Respect to Air Conditioning Processes. Uniabuja Journal of Engineering and Technology, 1 (2). pp. 1-17. ISSN 2714-3236

Text UJET20200930125005-STATISTICAL ANALYSIS OF WEATHER DATA OF ABUJA AND MINNA WITH RESPECT TO AIR CONDITIONING PROCESSES .pdf Download (753kB)

Abstract

One of the ways in which human beings adapt to climate change is through the application of refrigeration and air conditioning systems. The effectiveness of these systems depends on the weather of the environment in which they operate. The aim of this work was to carry out statistical analysis on fifteen-year (1995 – 2009) hourly dry-bulb temperature (Tdb) and relative humidity (RH) data for Abuja and Minna, obtained from the Nigerian Meteorological Agency (NiMet). The objectives of the work for each location were: compilation of bin data for Tdb and RH, and two-dimensional bin data of Tdb/RH; computation of the number of hours in each month in which appreciable evaporative cooling can occur (hours in which Tdb ≥ 32.2oC along with RH ≤ 50%); and calculation of the number of hours that the Tdb and the coincident RH fell in the comfort zone for each month. Microsoft Excel (2007 version) was used for the statistical analysis and bin widths of 1°C and 5% were chosen for Tdb and RH, respectively. The RH modal bin for both locations occurred in the 90 – 95% bin for 1077.5 and 812.7 hours for Abuja and Minna, on the average per year, respectively. For Tdb, the modal bins for Abuja and Minna were 23 – 24°C and 24 – 25°C for averages of 885.4 and 795.8 hours per year, respectively. There were six months (January through April, November and December) in which appreciable evaporative cooling occurred at the two locations for average totals of 1115 and 1340 hours per year, for Abuja and Minna, respectively. The average numbers of hour in which the weather was in the comfort zone were 1272 and 1364 hours per year and with appropriate use of humidifiers and dehumidifiers, additional 4642 and 4141 hours per year could be brought into the comfort zone at Abuja and Minna, respectively. Since the number of hours in which a dehumidifier is needed is much greater than the number of hours in which a humidifier is required at each location, dehumidifier is a more useful appliance than humidifier at both Abuja and Minna.

Item Type:	Article
Uncontrolled Keywords:	Air conditioning processes, dry-bulb temperature, relative humidity, evaporative cooling, comfort zone, humidifier, dehumidifier.
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Joy Oluwabukola Olayiwola
Date Deposited:	10 Feb 2022 11:45
Last Modified:	10 Feb 2022 11:45
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/1867

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