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Heat and cold generation

Heat and cold generation. Meyer Hospital Florence Meeting, 8-9 May 2003. Requirements. Purpose. An hospital has a great need of thermic energy all year round. Provide the needed hot and cold water with the lower waste of energy. Phisycal principles. COP. E. C. 3.80. 3.68.

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Heat and cold generation

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  1. Heat and cold generation Meyer Hospital Florence Meeting, 8-9 May 2003

  2. Requirements Purpose An hospital has a great need of thermic energy all year round Provide the needed hot and cold water with the lower waste of energy

  3. Phisycal principles COP E C 3.80 3.68 The refrigeration cycle COP 3.25 2.85 20 25 30 35 Condensation pressure i.e. temperature of cooling fluid the hotter temperature, the lower COP → split the chilling units

  4. Phisycal principles C1 recovered cold primary effect E C Energy transfer 3.80 3.68 3.25 2.85 20 25 30 35

  5. E Phisycal principles energy / primary energy used h production Heat Pump E C 1.05 h production condensation The heat pump Condensation pressure i.e. temperature of heating fluid h production Heat Pump≥ h production condensation boiler h production Heat Pump = h electricproduction· COP = 0.3 · COP ≥ 1.05

  6. E E E C1 this device can be considered as a heat transfer Configuration heat pump E C this group produces cold water during the summer and hot water during mid season HP1 heat pump E C the boilers group produces hot water during winter HP2 E C heat pump this group produces cold water during the summer Boiler C2 boilers chiller E C

  7. E E E C1 Summertime E C hot water general distribution chilled water general distribution outdoor HP1 E C HP2 E C Boiler C2 off E C

  8. E E E C1 Winter season E C hot water general distribution chilled water general distribution HP1 off E C HP2 E C off Boiler C2 off E C

  9. E E E C1 Mid season E C hot water general distribution chilled water general distribution outdoor HP1 E C HP2 E C Boiler C2 off off E C

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