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Model-Based Commissioning for Filters in Room Air Conditioners
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This paper proposes a model that can estimate filter resistance. Two sorts of value are used as inputs to estimate filter resistance. One is the power consumed by the fan in the indoor unit and the other is the thermal performance. For the room air-conditioners that the real time indoor unit fan power consumption is available, fan power consumptions are used as inputs to estimate filter resistance.For the room air-conditioners that are equipped with refrigerant pressure and temperature sensors, this model estimates filter resistance using refrigerant pressure and temperature, air temperature or enthalpy difference between supply and indoor air. The maximum and average difference between estimated and measured filter resistance are 12.72% and 5.89% when using the fan power consumption as inputs. When using the air-conditioner thermal performance data, the maximum and average estimation errors are13.12% and 5.96%. Based on this model, the method for commissioning filters in air-conditioner is discussed.
Wang, F.; Yoshida, H.; Kitagawa, H.; Matsumoto, K.; Goto, K. (2004). Model-Based Commissioning for Filters in Room Air Conditioners. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from