Results 61 to 70 of about 27,608 (252)
Environmental and Climate Technologies, 2021 The publication presents a design solution for circular multi-pipe thermal insulation and an example of an existing heating installation consisting of six individual heating pipes in the building of the Bialystok University of Technology.
Teleszewski Tomasz Janusz +2 more
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable, color‐adaptive radiative cooling coating is developed to enable dynamic spectral regulation via a reversible thermochromic transition at ~45 °C and a high solar reflectance of 91.7%. The coating achieves 4.44 °C outdoor sub‐ambient cooling while providing robust superhydrophobicity and environmental durability through its micro/nano ...
Ziqi Li +8 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
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Experimental determination of cold water temperature at the inlet to solar water storage tanks [PDF]
E3S Web of Conferences, 2019 In the present work, results of experimental research on the mains water temperature supplying the Solar Domestic Hot Water system in the period from 2016 to 2018 are shown.
Zukowski Miroslaw
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Personalized HVAC control system [PDF]
2010 Internet of Things (IOT), 2010 We present a novel method of building comfort control, focused around the occupant. Custom sensing, communication, and actuation hardware were developed to locate users in a building, and measure various parameters directly on the body. These signals were used to infer user comfort and control the air-conditioning system to direct air flow where it was
Feldmeier, Mark Christopher +1 more
openaire +3 more sources
Environmental Progress &Sustainable Energy, EarlyView.Abstract Brazed plate heat exchanger (BPHE) was analyzed using computational fluid dynamics (CFD) simulations by ANSYS Fluent to investigate the chevron‐patterned plates. The influence of geometric parameters, including corrugation pitch, depth, and angle was analyzed.
J. S. Huang, K. B. Then, X. W. Wang
wiley +1 more source
Computational Study on Thermal Properties of HVAC System with Building Structure Thermal Storage [PDF]
, 2007 Building structure thermal storage (BSTS) HVAC systems can store heat during nighttime thermal storage operation (nighttime operation hours) by using off-peak electricity and release it in the daytime air-conditioning operation (daytime operation hours ...
Sato, Y. +4 more
core
Performance evaluation and optimal design of supermarket refrigeration systems with supermarket model "SuperSim", Part I: Model description and validation [PDF]
, 2011 This is the post-print version of the final paper published in International Journal of Refrigeration. The published article is available from the link below.
Y.T. Ge, S.A. Tassou, Ge, YT, Tassou, SA
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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
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