空調箱外氣需量控制搭配VAV系統之節能效益案例分析

• Main Authors: Yu Chien-Lin, 林郁乾
• Other Authors: Yu Lieh-Wu
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/4bwg4x

碩士 === 國立勤益科技大學 === 冷凍空調系 === 104 === Taiwan belongs to subtropical countries, hot and humid summer mean temperature and relative humidity are about 27.5 ℃ and 83% RH, the need to introduce outdoor air demand conditioned place to maintain indoor air quality, the level of outdoor air introduced into the outdoor temperature and humidity, the amount is a major culprit affect indoor air quality and the air conditioning load .In this study, the actual improvement and measurement mode analysis AHU outdoor air for an optimal amount of control, and air conditioning systems for air box with VAV(Variable Air Volume System；VAV) conversion system area part of its energy efficiency.In line with Indoor Air Quality Management Act and the indoor air conditioning temperature setting of demand, in order to monitor the computer automatically adjust the 10% to 100% of the air box outdoor air throttle opening, and adjust 30HZ ~ 60HZ blower motor operation speed, thereby improving the load of external air conditioning energy consumption and non-working hours to reduce energy consumption and adjust the amount of air conditioning load motor operation comparison. This study compares dual control modes: Mode 1, a conventional manual control outdoor air damper opening is fixed to 100%, modified to detect indoor than outdoor CO2 value and automatically adjusts the outdoor air enthalpy throttle opening 10% to 100% of the pattern, and the second control mode, an additional part of the zone VAV systems and the installation of the fan motor to improve the energy dissipation of the inverter air conditioner blower motor caused by the box.Via monitor computer records indoor CO2 value, value outdoor air damper opening, the outdoor air enthalpy with windmill operation frequency of the motor, After statistical analysis showed that the seasons have a direct impact on the seasonal variation of the building air conditioning load, a control mode for individual improvement than the outdoor air demand control gas load consumption energy saving rate of 78% of airside its total energy saving amounted to 21.2%, mainly saving for the summer season followed by spring and autumn, while the second control mode for an additional external gas demand control and the blower motor variable frequency energy saving rates were as follows: First, the outdoor air demand control gas load energy saving 82.1% in the second, energy saving fan motor frequency of 42.2%, the actual total energy savings of up to 51.2%,mainly energy-saving effect for the whole year are thus seen to improved control of the air box outside air demand of the inverter control system with VAV air-conditioning system of the box saving a great help.