# Air enters a 30-cm-diameter cooling section at 1 atm, 35 C, and 60 percent relative humidity at...

## Question:

Air enters a 30 cm diameter cooling section at 1 atm, 35{eq}^o{/eq}C, and 60 % relative humidity at 120 m/min. The air is cooled by passing it over a cooling coil through which cold water flows. The water experiences a temperature rise of 8{eq}^o{/eq}C. The air leaves the cooling section saturated at 20{eq}^o{/eq}C.

(a) Determine the rate of heat transfer. Round your answer to the nearest tenth. {eq}Q_{out}= \rule{3cm}{0.15mm}kJ/min{/eq}

(b) Determine the mass flow rate of the water. Round your answer to the nearest hundredth {eq}m_{cooling\enspace water} =\rule{3cm}{0.15mm} kg/min{/eq}

(c) Determine the exit velocity of the airstream. Round your answer to the nearest ones place. V{eq}_2 = \rule{3cm}{0.15mm} m/min{/eq}.

## Psychrometric Process:

In Psychrometric process we study about the heating and cooling process of air. Sensible cooling, sensible heating, humidification and dehumidification are the different process in Psychrometric.

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Given Data

• The diameter of coil is: {eq}d = 30\;{\rm{cm}} {/eq}.
• The initial velocity is: {eq}{V_1} = 120\;{{\rm{m}} {\left/ {\vphantom {{\rm{m}}...

Types of Heating & Cooling Systems

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Chapter 10 / Lesson 9
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You can choose from a number of different heating and cooling systems to make your home comfortable to live in. Watch this video to learn about the advantages and disadvantages of forced air, radiant heat, baseboard heat and geothermal systems.