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Chester Ross
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2 Improving Heat Pump Systems Welcome at Chillventa 2012 Joachim Dietle Product Management Axial Fans Ziehl-Abegg AG Ziehl-Abegg Axial Fans from Ziehl-Abegg - Künzelsau, June Visit us on Chillventa 2012 Hall 7-114

3 Agenda Air to Water Heat Pump How to improve the system? Summery 3

4 Heat Pump Market Germany Market share of air/water heat pumps increase! 4 Source: IEA Heat Pump Centre Newsletter Vol. 30 No.2/2012

5 Heat Source Air Ambient air free widely available easy and cheap to catch most common heat source but wide temperature range (lowest temperature on highest heating demand) in mild and humid climates, frost will accumulate on the evaporator surface COP coefficient of performance drops with increasing defrost frequency on average 10-30% lower SPF seasonal performance factor than water-source heat pumps Air is cheap but sometimes not easy to handle! 5

6 Air Flow in Heat Pumps Jalousie Duct Finger Protection (needed?) Nozzle => ZAplus Fan P fan 6 Evaporator PL 1 = = ( Δp + Δp ) q η η st d V Relevant for cooling or heating! Optimize air flow reduce pressure drop use ZAplus

7 ZAplus air flow situation Full bell mouth ZAplus optimized airflow! CFD-based design! 7

8 ZAplus the innovative axial fan system Short bell mouth 8 Full bell mouth ZAplus improves the air flow situation by a new CFDbased design of nozzle, diffusor, suspension and finger protection

9 ZAplus air flow Air Performance FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus pfa [Pa] % more pressure more safety on icing more air flow more energy to coil q V [m 3 /h] 9

10 ZAplus energy demand pfa [Pa] Air Performance FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus Power Demand FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus qv [m 3 /h] PM [W] % ,5% q V [m 3 /h] save energy! 10

11 ZAplus acoustics pfa [Pa] Air Performance FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus Sound Power (pressure side) FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus qv [m 3 /h] LW DS [db(a)] db db q V [m 3 /h] lower noise! 11

12 ZAplus efficiency Efficiency + 7% points % points fam [%] FN050 1~ 6pol Full Bell Mouth FN050 1~ 6pol Short Bell Mouth ZN050 1~ 6pol ZAplus q V [m 3 /h] 12 Higher efficiency!

13 ηopt. [%] ZAplus ErP requirements ZN050 1~ 8pol ZN050 3~ 8pol ZN050 1~ 6pol ZN050 3~ 6pol ZN050 1~ 4pol ZN050 3~ 4pol ZN050 1~ 4pol ZN050 1~ ECblue ZN050 3~ ECblue 0,1 1,0 10,0 P1 [kw] With ZAplus fans are ErP 2015 compliant! 13

highest efficiency => reduced operation costs =>

14 Improved Efficiency ECbluedrive high efficiency impeller ZAplus best efficiency Complete system => highest efficiency => reduced operation costs => save money Application Best flow conditions Low pressure drop 14

15 ZAplus different compact built in versions finger protection on demand Mounting Ontop ZAplus: 208 mm Full bell mouth: 226 mm Coil Air Air 15

16 ZAplus different compact built in versions Mounting Flattop finger protection on demand Coil Air Air 16

17 ZAplus different compact built in versions Mounting Flattop Coil Air Air finger protection on demand 17

18 ZAplus different compact built in versions Mounting Ontop finger protection on demand Coil Air Air 18

19 ZAplus the innovative axial fan system ZAplus improves the air flow situation by a new CFD-based design of nozzle, diffusor, suspension and finger protection: More airflow Higher efficiency Flexible installation Weight reduction Compact design ErP compliant AC and ECblue fans 19

20 Thank you for your attention. Visit us on Chillventa 2012 Hall

FROM COMPONENTS TO SYSTEM APPROACH OPTIMIZATION OF AIR-WATER HEAT PUMPS

- 1 - FROM COMPONENTS TO SYSTEM APPROACH OPTIMIZATION OF AIR-WATER HEAT PUMPS Joachim Dietle, Dipl.Ing.(FH), Product Manager Axial Fans; Ziehl-Abegg SE Heinz-Ziehl-Strasse, 74653 Kuenzelsau, Germany Abstract: