[학위논문]열교환기 원지 물성에 따른 전열교환기 효율 예측에 관한 연구 (A) study on the efficiency prediction of heat recovery ventilator according to the properties of heat exchanger원문보기
Recently in domestic building for energy conservation has interested a insulation and reinforcement of air permeability. also, seriousness of indoor air pollution with emission of harmful chemicals are on the rise by indiscriminate prevalence of construction material without verification and because...
Recently in domestic building for energy conservation has interested a insulation and reinforcement of air permeability. also, seriousness of indoor air pollution with emission of harmful chemicals are on the rise by indiscriminate prevalence of construction material without verification and because of the problem, not only to the people who are engaged in architecture but also to the real residents of apartment house securing issue of healthy environment is a prime concern. So forced air change with ventilation system is in need. But outdoor air coming from ventilation increase of heating and cooling load and the problem can be eased by using heat recovery systemized ventilation system. In this study as analysing correlation of property about Liner and Spacer of heat exchanger which is the key part of heat exchange ventilation system and efficiency, presents the way for increasing efficiency and also presents that main purpose is seeking best lay-out of heat exchange element with deducting correlation. The effects of stencil papers properties such as thermal conductivity, thickness, air permeability, moisture absorbent rate on the heat exchanger were experimentally investigated. Heat exchanger efficiency was tested according to the standard test procedure of KS B 6879. In this study, The thermal Conductivity depend on the thickness of a stencil paper. Therefore, as long as degree of air passage allows, making full use of opportunity to make thickness thin is advantageous in the heat delivery. To increase humidity exchange efficiency, increasing thickness and adding moisture absorbent such as KCI will be good but in case of Liner, only moisture absorbent need to be added because temperature exchange efficiency also need to be considered. Using correlation of thickness of Spacer, hygroscopic degree and humidity exchange efficiency, heat exchanger's efficiency can be predictable. In this study, the heat recovery ventilator according to the properties of heat exchanger of stencil paper was presented the prediction equation. The prediction equation was using regression analysis, the accuracy criterion was within the 0.05 of P-Value. Properties of the prediction by the value of the expression P-value less than 0.05 with accuracy and without the test expression is derived as a measure of efficiency of heat exchanger can be set. In case of intermediate season in Korea, in principle has relative humidity about 50% to 70% at this time and the month that absolute humidity presents difference in average up to 70% in comparison to 0.0064 kg/kg' is March, April, November, only half of six months which represent intermediate season that can be driven. In other words May, September, October considered advantageous when by-pass function added on the function of system and drive than ventilating through heat exchange ventilation system for maintaining driving ability and energy reduction.
Recently in domestic building for energy conservation has interested a insulation and reinforcement of air permeability. also, seriousness of indoor air pollution with emission of harmful chemicals are on the rise by indiscriminate prevalence of construction material without verification and because of the problem, not only to the people who are engaged in architecture but also to the real residents of apartment house securing issue of healthy environment is a prime concern. So forced air change with ventilation system is in need. But outdoor air coming from ventilation increase of heating and cooling load and the problem can be eased by using heat recovery systemized ventilation system. In this study as analysing correlation of property about Liner and Spacer of heat exchanger which is the key part of heat exchange ventilation system and efficiency, presents the way for increasing efficiency and also presents that main purpose is seeking best lay-out of heat exchange element with deducting correlation. The effects of stencil papers properties such as thermal conductivity, thickness, air permeability, moisture absorbent rate on the heat exchanger were experimentally investigated. Heat exchanger efficiency was tested according to the standard test procedure of KS B 6879. In this study, The thermal Conductivity depend on the thickness of a stencil paper. Therefore, as long as degree of air passage allows, making full use of opportunity to make thickness thin is advantageous in the heat delivery. To increase humidity exchange efficiency, increasing thickness and adding moisture absorbent such as KCI will be good but in case of Liner, only moisture absorbent need to be added because temperature exchange efficiency also need to be considered. Using correlation of thickness of Spacer, hygroscopic degree and humidity exchange efficiency, heat exchanger's efficiency can be predictable. In this study, the heat recovery ventilator according to the properties of heat exchanger of stencil paper was presented the prediction equation. The prediction equation was using regression analysis, the accuracy criterion was within the 0.05 of P-Value. Properties of the prediction by the value of the expression P-value less than 0.05 with accuracy and without the test expression is derived as a measure of efficiency of heat exchanger can be set. In case of intermediate season in Korea, in principle has relative humidity about 50% to 70% at this time and the month that absolute humidity presents difference in average up to 70% in comparison to 0.0064 kg/kg' is March, April, November, only half of six months which represent intermediate season that can be driven. In other words May, September, October considered advantageous when by-pass function added on the function of system and drive than ventilating through heat exchange ventilation system for maintaining driving ability and energy reduction.
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