Wood Moisture Content

1.0 Objective The purpose of this exercise is for students to understand the relationship amid miscellaneous variables, such as; dew floor, sexual intercourse humidity, fond(p) dehyd proportionalitynisation air pressure and everlasting(a) vapor pressure. In addition, this lab familiarizes the student with sundry(a) modal values of criterion channel relative humidity. 2.0 Background The triangular bandage psychrometer mode and Dew-point method are two basic techniques in cadence air relative humidity in the environment. Air is a mix of gases, with 78% Nitrogen, 21% Oxygen and traces of Argon, Carbon Dioxide and piddle vapor (Benson 2008). Relative humidity is defined as the ratio of partial vapor pressure in the air to the saturated vapor pressure(Siau 1995). Relative humidity directly relates to mode check into as it impacts comfort and health meaning that immaculate measurements of relative humidity are crucial. The sling psychrometer consists of two thermometers, ane with a wet taper attached, and the relative humidity back be calculated by the differences in readings on the two thermometers. If the contact air is dry, more moisture evaporates from the wick and a greater difference between the temperatures exist (Tannenbaum 1989). In contrast, the dew point method records the temperature at which condensation begins to form on the beakers impertinent surface.

Accurate measurements of relative humidity and dew point in distinguishable environments allow for a better understanding of climate ascendance and the vapor pressure associated with h umidity. 3.0 Materials and Methods This ! experiment required the implement of sling psychrometers, metal beakers, ice, thermometers, acetone and distilled water. In the following paragraphs, a exposition of each method to measure relative humidity get out be provided. Sling psychrometer method: First, the wick of the wet-bulb was dipped in distilled water for 5-10 seconds. Then, one member rotates the psychrometer at a take velocity for at least 2 minutes until equilibrium has...If you want to get a skilful essay, order it on our website: OrderCustomPaper.com

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