Air-Source vs. Water/Ground-Source Heat Pump Systems ...
Air-Source vs. Water/Ground-Source Heat Pump Systems ...
Air-Source vs. Water/Ground-Source Heat Pump Systems ...
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CoolEnergy.dk – March 6-7 th, 2013 – Odense, Denmark<br />
<strong>Air</strong>-to-<strong>Water</strong> <strong>Heat</strong> <strong>Pump</strong>s – Problems<br />
› Compressor<br />
› Mechanical/thermal stress – wear and tear, compressor failure<br />
› Low compressor efficiency – reduced performance<br />
› <strong>Air</strong> cooler<br />
› Corrosion – refrigerant leakage, reduced performance etc.<br />
› Fatigue fractures – refrigerant leakages<br />
› Defrosting – extensive energy use, reduced performance etc.<br />
› Fans – noise, vibrations etc.<br />
› Recirculation of air – reduced performance<br />
› Operating limitations and problems<br />
› Limited outlet water temperature – reduced annual heat supply<br />
› High stop-temperature – reduced annual heat supply<br />
› 4-way valve malfunction etc.<br />
22<br />
MARCH 7TH, 2013<br />
COWI POWERPOINT PRESENTATION
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