In this study, prediction performances of a regression model and deep learning-based predictive models were comparatively analyzed for the hourly insolation in regions located at temperate climate microthermal with high precipitation. Unlike linear models, artificial neural networks (ANN) long short-term memory- (LSTM-) based achieved reliable CV(RMSE) 14.0% 15.8%, respectively. This study proposed direction future research by improving performance predicting 1 hour after current time-step,...

This paper proposes the optimal algorithm for controlling HVAC system in target building. Previous studies have analyzed pre-selected algorithms without considering unique data characteristics of building, such as location, climate conditions, and type. To address this, we compare accuracy cooling load prediction using ANN LSTM algorithms, widely used building energy research, to determine control We develop a simulation model calibrated with actual ensure reliability consumption existing...

Heating, ventilation, and air-conditioning (HVAC) systems play a significant role in building energy consumption, accounting for around 50% of total usage. As result, it is essential to explore ways conserve improve HVAC system efficiency. One such solution the use economizer controls, which can reduce cooling consumption by using free-cooling effect. However, there are various types controls available, their effectiveness may vary depending on specific climate conditions. To investigate...

Double Skin Façade (DSF) systems have become an alternative to the environmental and energy savings issues. DSF offers thermal buffer areas that can provide benefits conditioned spaces in form of improved comforts savings. There are many studies conducted resolve issues about heat captured inside DSF. Various window control strategies algorithms were introduced minimize gain summer. However, condition causes a time lag between response Heating, Ventilation, Air-Conditioning (HVAC) system...

Residential buildings account for a significant portion of the total building-energy usage in Korea, and variety research studies on domestic boiler have therefore been carried out; however, most these examined itself, whereby part-load ratio characteristics corresponding gas-energy consumption patterns were not analyzed. In this study, operating gas analyzed within residential building equipped with radiant floor-heating system; addition, energy between condensing conventional boilers was...

Commercial buildings account for significant portions of the total building energy in Korea, and thus, a variety research on chiller operation has been carried out. However, most studies were out itself, i.e., part load ratio characteristics corresponding electricity consumption patterns not analyzed existing studies. In this study, operating vapor compression within an office equipped with conventional variable air volume system. As result, hours, cooling load, turned to be range 0 through...

Purpose: Korean government originally established the target of greenhouse gas emission reduction by 30% year 2020, but adjusted to 37% 2030, recently. The efficient indoor environmental control is an essential factor for achievement goal. However, most environment based on dry-bulb air temperature, which one simplified methods having limitation truly represent thermal comfort individual occupants. A variety factors affect such as humidity, movement, radiation, clothing insulation and...

Purpose: Recently, there are many research projects conducted to achieve smart cities. Smart cities consist of buildings that include efficient energy supply and consumption systems. The Artificial Intelligence (AI) technologies became useful tools for this purpose due their reliability prediction accuracy credibility. It is very important better understand how the AI algorithms work can be applied specific areas efficiency in buildings. This paper presents technologies, such as Neural...

Abstract Commercial buildings account for a significant proportion of the total building energy use in Korea, and coolingenergy, turn, accounts largest consumption commercial buildings. Under this circumstance,chiller staging is considered to be reasonable practical solution cooling saving. In study, part-loadratio operating characteristics vapor compression chiller were analysed within an office building. addition,energy among different schemes was comparatively analysed. As result,...