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Thảo luận về năng lượng tiềm năng tiết kiệm • Đánh giá rủi ro của giới thiệu khái niệm này mới để thị trường • Thảo luận về công việc trong tương lai để đưa khái niệm này vào thị trường. Thông tin này dành cho một khán giả với kiến thức kỹ thuật sưởi ấm, thông gió và điều hòa không khí (HVAC) công nghệ và phân tích. 1.2 Bối cảnh Hôm nay của A / C chủ yếu dựa trên | o DEVap A C DX A C Figure 3-10 Indoor RH histograms for Houston in June-August 3.4.3 New and Retrofit Commercial The EnergyPlus model completed in 2008 experienced issues that prevented humidity control from being implemented for the load profile in EnergyPlus. As a result the RH frequently went out of control see Figure 3-11 and Figure 3-12 . This generally happens when the building is empty and the air conditioner is shut down nights and weekends . This results in high latent removal generally in the morning during the building warm-up period. The DEVap is driven to achieve the same load profile that the A C provided thus the DEVap building would have the same RH histogram. The DEVap and DX A C latent removal are equal. Figure 3-11 RH histogram for a small office benchmark in Houston 31 Latent Comparison DEVap A C DX A C Return Air RH Figure 3-12 Latent load comparison and resultant space RH in Houston DEVap A C and DX A C latent load profiles overlap 3.5 Energy Performance For all energy performance calculations the conversion factors in Table 3-7 are used. Table 3-7 Source Energy Conversion Factors Deru et al 2007 Source Factor Electric source energy 3.365 Natural gas source energy 1.092 For the new residential simulations the total source energy was for the sum of all the electric and thermal source energy to run the A C systems mechanical ventilator and dehumidifier. For retrofit residential simulations no mechanical ventilation is required in the DX case. For commercial the source energy for cooling is the sum of all the electrical energy to run the DX system only when there is a call for cooling. Similarly for the DEVap A C electrical and thermal energy is summed only for periods when there is a call for cooling. Water use impacts for the DEVap and DX A C are summed to include on-site and off-site water use. Electric power plants evaporate at 0.5-4.4 gal kWh in the United States Torcellini et al. 2003 . Including on-site and off-site water use on a per .
