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                                       The Use of Water in HVAC Systems

                                                     The Use of Water in HVAC Systems  213


                                            Water flow meter
                      Pumps     W P   T 1    Q S


                           From chillers
                            or boilers
                                             W F


                                                    Coil         Coil

                                           Fan
                           To chillers
                           or boilers  T 2


                    Figure 8.2  Air-water system.


                    Condenser water systems. Condenser water systems are represented
                    by Fig. 8.3. The COP for them is computed by Eq. 8.3, but W is the
                                                                              f
                    kilowatt input to the cooling tower fans.
                      The development of a COP for distribution of cooling, heating, and
                    disposal of condenser heat appears to be the most usable factor for
                    determining the efficiency of movement of energy in HVAC water



                                                       T 2






                                 W F
                    Cooling
                     tower                                 Chiller  condenser





                                  T 1         W P


                                   Condenser          Q S
                                     pumps
                    Figure 8.3  Condenser water systems.




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