Author:
Badarudin A,Pratikto P,Falahuddin M A
Abstract
Abstract
A point on the psychrometric chart can show 7 properties of air. If two properties are known then 5 other properties can be calculated. Air treatment will change the properties of air conditions. Changes in air condition can be determined by measuring each air properties and plotted on a psychrometric chart. One of the uses of psychrometric analysis is to determine the amount of cooling capacity used in air conditioning systems. To show the condition of the air at any time needed a system that is integrated between the data acquisition device and data display. This research designs and develops applications that are ready to display data and psychrometric charts that can later be integrated with hardware equipped with sensors through an interface. Psychrometric applications are designed using the JavaScript programming language, so they can be opened using any web browser. Psychrometric charts are drawn using iteration calculation methods. Based on the results of data analysis, the difference in value between the results of manual calculations and applications is as follows: wet-bulb temperature (Twb) is 0.27%, Moisture Content (ω) is 0.77%, specific enthalpy (h) is 0.52 %, Specific Volume (v) is 0.28%, Dew-Point Temperature (Tdp) is 0.92%.
Reference14 articles.
1. Theoretical Analysis of Passive Lateral Ventilation Evaporative Cooling Based on the Capillary Action;Li;Energy Procedia,2019
2. Delineation of frost characteristics on cold walls by using a new formula for psychrometrics demarcation boundary;Ali;Energy Conversion and Management,2009
3. Predictive controllers for thermal comfort optimization and energy savings;Freire;Energy and Buildings,2008
4. Psychrometric Analysis of an Air-Conditioning System Operating Under Given Ambient Conditions;Madu;International Journal of Innovation and Sustainability,2018
5. Using the Psychrometric Chart in building measurements;Horan,2010