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

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

3. Phisycal principles The refrigeration cycle COP COP Condensation pressure i.e. temperature of cooling fluid CE 20253035 3.80 3.68 3.25 2.85 the hotter temperature, the lower COP → split the chilling units

4. Phisycal principles Energy transfer C1 CE 20253035 3.80 3.68 3.25 2.85 recovered cold primary effect

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

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

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

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

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