Wood Moisture Content

1.0 Objective The purpose of this exercise is for students to understand the relationship amidst miscellaneous variables, such as; dew place, sexual intercourse humidity, fond(p) dehyd proportionalitynisation mechanical press and saturated vapor pressure. In addition, this lab familiarizes the student with sundry(a) humours of measurement stick channel relative humidity. 2.0 Background The triangular bandage psychrometer mode and Dew-point method are dickens basic techniques in measuring air relative humidity in the environment. Air is a mix of gases, with 78% Nitrogen, 21% Oxygen and traces of Argon, Carbon Dioxide and peeing 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 temper check into as it impacts comfort and health meaning that blameless measurements of relative humidity are crucial. The sling psychrometer consists of two thermometers, hotshot with a wet taper attached, and the relative humidity stool 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 mood ascendance and the vapor pressure assoc iated with humidity. 3.0 Materials and Me! thods This experiment required the manipulation 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 in effect(p) essay, order it on our website: OrderCustomPaper.com

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