Unformatted text preview: liquid, respectively: Allows for maximum performance of the refrigeration cycle and allows the equations to be easily solved. • The evaporator and condenser are an insulated system: Only heat transfer that happens is between the air flow and the cold or hot refrigerant • P_low = 2: Needed a start point for the refrigerant, seemed like a standard operating pressure of R22 • Overall pressure is constant: No significant pressure difference happens because of this process (the fan only creates a very minor one extremely close to the blades) so these small changes can be ignored. • T_2 = 45 deg F: Purely assumed number. Seemed like a reasonable assumption. • Phi_2 = 100%: Temperature drop causes the partial pressure of vapor to fall to the saturation point....
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- Spring '08
- Chemical Engineering, Vapor pressure, Water vapor