Results 61 to 70 of about 100,450 (224)
Piezoelectric vibration energy harvesting from airflow in HVAC (Heating Ventilation and Air Conditioning) systems [PDF]
, 2017 This study focuses on the design and wind tunnel testing of a high efficiency Energy Harvesting device, based on piezoelectric materials, with possible applications for the sustainability of smart buildings, structures and infrastructures.
Bontempi, Franco +2 more
core +1 more source
Energy Science &Engineering, EarlyView.This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi +5 more
wiley +1 more source
Optimization of operation times of a heating system in office building
Journal of Asian Architecture and Building Engineering, 2020 A method is proposed for optimizing the operation times of a heating system in an office building for saving energy. The method involves determining the optimal start and stop times of the heating system by using an optimized artificial neural network ...
Inho Yang
doaj +1 more source
IAQ in Conference Room whit Surveys [PDF]
E3S Web of Conferences, 2019 The work presents three basic air pollutants in the room, degrading the indoor air quality. The only source of pollution in the analysed room are people.
Gładyszewska-Fiedoruk Katarzyna
doaj +1 more source
HVAC system size – getting it right [PDF]
, 2006 There is evidence that many heating, ventilating & air conditioning (HVAC) systems, installed in larger buildings, have more capacity than is ever required to keep the occupants comfortable.
Moller, Steven, Thomas, PC
core +1 more source
Energy Science &Engineering, EarlyView.A deep reinforcement learning–based control architecture is proposed to coordinate heat pumps, thermal storage, renewable energy, and demand response in data center waste heat recovery systems. The agent learns optimal control actions from system states and reward feedback to achieve electrical–thermal co‐optimization under realistic operational ...
Rendong Shen +5 more
wiley +1 more source
Comparative Investigation of the Energy Efficiency of Mini-Split Air Conditioning with Variable Refrigerant Flow Systems for Office Buildings in Hot Climate. [PDF]
JES: Journal of Engineering SciencesEgypt is confronted with a critical issue of increasing electricity consumption, mainly attributable to the extensive usage of air conditioning equipment, especially in areas with high temperatures and dry circumstances such as Aswan city.
Ahmed Hussien, Ahmed Ali, Ibrahim Ismail
doaj +1 more source
Electrical tree degradation in high-voltage cable insulation: progress and challenges
High Voltage, 2020 High-voltage direct current (HVDC) and high-voltage alternating current (HVAC) cables are the most important equipment for high-voltage, large-capacity and long-distance power transmission. Electrical tree is a pre-breakdown phenomenon leading to failure
Jingang Su +4 more
doaj +1 more source
Numerical laminar forced convection modelling in a ceramic and concrete solar collector with non-circular duct [PDF]
E3S Web of Conferences, 2019 The paper presents simulations of laminar forced convection in non-circular piping of flat solar collectors made of ceramics or concrete, which are characterized by a low thermal conduction coefficient.
Teleszewski Tomasz Janusz
doaj +1 more source
Environmental Control for Edible Fungi Cultivation Based on Temporal Information and Deep Learning
Food Bioengineering, EarlyView.ABSTRACT Currently, there are still prevalent issues in greenhouse environmental regulation, such as response lag, low control accuracy, and difficulty in coping with sudden environmental disturbances. To achieve high‐precision and dynamic control of the edible fungi cultivation environment, this study proposes an edible fungi environmental control ...
Xiangyan Wang +3 more
wiley +1 more source