1. Udara yang digunakan sebagai media pengering merupakan campuran dari udara A dan udara B. Diinginkan udara pengering memiliki suhu 38°C dan specific humidity 7 g/kg dry air. Udara A memiliki suhu suhu 25°C dan relative humidity 60%, sedangkan udara B memiliki suhu dry bulb 46°C dan suhu wet bulb 20°C. Dengan menggunakan psychrometric chart: a. Hitung perbandingan rasio udara A dan B yang dibutuhkan agar bisa mendapatkan udara pengering pada spesifikasi yang diinginkan. b. Tentukan nilai semua properties pada udara campuran (Dry Bulb Temperature (Tdb), Wet Bulb Temperature (Twb), Dew Point Temperature (Tdp), Specific Humidity, Relative Humidity (RH), Specific Volume (V), Enthalpy (H)) (psychrometric chart hasil pembacaan juga diupload)
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- For air A: - Dry Bulb Temperature (Tdb) = \( 25^{\circ} \mathrm{C} \) - Relative Humidity (RH) = \( 60\% \) - Use the psychrometric chart to find the Specific Humidity (SH) and Enthalpy (H) for air A. Show more…
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A stream of warm air with a dry-bulb temperature of $36^{\circ} \mathrm{C}$ and a wet-bulb temperature of $30^{\circ} \mathrm{C}$ is mixed adiabatically with a stream of saturated cool air at $12^{\circ} \mathrm{C}$. The dry air mass flow rates of the warm and cool airstreams are 8 and $10 \mathrm{kg} / \mathrm{s},$ respectively. Assuming a total pressure of $1 \mathrm{atm}$ determine ( $a$ ) the temperature, ( $b$ ) the specific humidity, and (c) the relative humidity of the mixture.
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Atmospheric air at a pressure of 1 atm and dry-bulb temperature of $28^{\circ} \mathrm{C}$ has a dew-point temperature of $20^{\circ} \mathrm{C}$. Using the psychrometric chart, determine $(a)$ the relative humidity, $(b)$ the humidity ratio, $(c)$ the enthalpy, $(d)$ the wetbulb temperature, and $(e)$ the water vapor pressure.
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