CO2熱泵熱水器系統效益分析

Benefit Analysis for CO2 Heat Pump-Water Heating System

游明哲(Ming-Jer Yu)

指導教授 ： 鄭鴻斌

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2009年)

摘要

本論文探討CO2熱泵的系統效益分析，討論CO2熱泵熱水器的輸出效能。觀察環境溫度變化過程中，熱泵的性能與運轉效率相互之影響，在達到固定的目標溫度時，以穩態討論系統製熱能力和性能效率，探討不同環境溫度對氣冷式熱泵熱水器之性能影響，以供系統開發設計及應用上之參酌。
在設定的環境條件下，水槽水溫從固定輸出的78°C，比較不同環境溫度及不同入口水溫下的氣體冷卻器和蒸發器運轉數值，分析出最佳製熱能力和COP值之結果，以確認系統特性及輸出效能的表現。本論文研究之結果：確認室外溫度低於零下5℃時，氣冷式CO2熱泵熱水器仍有2.04的COP值可取代R-22熱泵熱水器，在環境溫度較高的條件下，可顯示出系統優勢和成效，水源給水溫度較低的條件下，也能有提高系統COP值之優勢。因此經由熱泵熱水器搭配自然冷媒CO2使用之推廣，可提升運轉效率降低功率消耗，減少能源浪費，達到降低運轉成本之目標。並同時改善溫室效應形成的氣候變化及洋流、陸地生態上的影響。

關鍵字

自然冷媒 ； CO2冷媒 ； CO2熱泵

並列摘要

This thesis inquires into the system benefit analysis of CO2 heat pump, discussing the exportation efficiency of the CO2 heat pump water heater. Observing the performance and efficiency affect mutually when the environment temperature changes. While attaining the fix target temperature, discussing the heating and efficiency in a stable situation. Inquire into the influence to the function of the CO2 heat pump water heater with different environment temperature. It can use to the system develop design and application.
We can confirm the character of system and exportation efficiency and obtain the best heating ability and COP value by analyzing gas cooler and evaporator data in different inlet water temperature. The result of thesis research: confirm the COP value of air cooling-type CO2 heat pump water heater still can replace the R-22 heat pump water heater when the outdoor temperature is -5℃. It can perform the system advantages and outcomes while the outdoor temperature is high, it also can increase COP value when the gas cooler inlet water temperature is low.
By using the heat pump water heater and CO2 natural refrigerant, not only can increase efficiency, but also can reduce the energy consumption. It can make the running cost down. We can improve the influence of Global Warming Potential.

並列關鍵字

Natural refrigerants ； CO2 refrigerant ； CO2 heat pump

參考文獻

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