Development of Air-Conditioning Operation-Planning Method for Large Spaces

When targeting large spaces, temperature distribution occurs due to air flow. Therefore, when evaluating the some state quantity values in large spaces using the single-mass model, the evaluation values cannot be accurately evaluated. In our developed method, we analyze in advance flow distribution with high computational load and make contributed ratio of indoor climate (CRI). By using CRI for making air-conditioning operation plan, the air conditioning power consumption and demand response (DR) amount can be quickly obtained. We also conducted an evaluation to compare the difference in these values between our developed method and using the single-mass model. The air-conditioning power consumption and DR amount of the developed method were smaller than those of the single-mass model since it takes into account the temperature difference between upper and lower regions of space. It was also confirmed that the derived room temperature distribution by the CRI had an error within 1 degrees C compared with the evaluation using computer fluid dynamics (CFD). (c) 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.