Lecture Objectives:

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Lecture Objectives

• Review Psychrometrics
• Finish the swimming pool dehumidification example
• Review Thermodynamics of Mixtures
• Introduce absorption cooling

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Process in AHUs

• Example AHUs for swimming pools

MENERGAThermoCond 19
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Swimming pool heating
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Dehumidification using outside air in Winter and
Summer
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More advance control
MENERGA ThermoCond 29
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Dehumidification using outside air in winter
Condenser in the air stream
Evaporator
Compressor of the heat pump
Condenser in the swimming pool
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Recirculation of air with dehumidification
catalog
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Absorption cooling

• COPvapor_compressionQcooling/Pelectric
  COPmaxTcooling/(Tenviromnet-Tcooling)
  
• COPabsorptionQcooling/Qheating COPmax
  Tcooling/Theat_source (Theat_source-T
  environment)/(Tenviromnet-Tcooling)

Heat
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Mixtures(T-x diagram)
For P 4 bar
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Impact of Pressure
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T h diagram
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Reading Assignments

• Psychrometrics
• Thermal Environmental Engineering
• Chapters 7 and 8
• Cooling cycles
• Thermal Environmental Engineering
• Chapter 3
• Mixtures
• Thermal Environmental Engineering
• Sections 5.1-5.4