Results 21 to 30 of about 37,909 (240)
Optimization of Geometric Parameters of Thermal Insulation of Pre-Insulated Double Pipes
Energies, 2019 This paper presents the analysis of the heat conduction of pre-insulated double ducts and the optimization of the shape of thermal insulation by applying an elliptical shape.
Dorota Anna Krawczyk +1 more
doaj +1 more source
Proceedings, 2018 In the case of a computational example, a few aspects of the twin pipe geometry are presented, which have an effect on heat losses through double heating ducts.
Dorota Anna Krawczyk +1 more
doaj +1 more source
A New Method to Determine the Annual Energy Output of Liquid-Based Solar Collectors
Proceedings, 2019 This article presents a new way of determining the annual energy output of solar thermal collectors. The proposed method, in the first stage, assumes the creation of a database that contains energy gains QSC from the solar collectors, the average annual ...
Miroslaw Zukowski, Paulina Radzajewska
doaj +1 more source
Energies, 2019 This paper presents possible variants of reducing the heat loss in an existing heating network made from single pre-insulated pipes located in central Europe.
Dorota Anna Krawczyk +1 more
doaj +1 more source
Testing of a price-based system for power balancing on real-life HVAC installation in real life [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022 HVAC systems use a substantial part of the whole energy usage of buildings. The optimizing of their operation can greatly affect the power use of a building, making them an interesting subject when trying to save energy.
Weronika Radziszewska +5 more
doaj +1 more source
Angewandte Chemie, EarlyView.Atmospheric water harvesting (AWH) under arid conditions requires desiccants that load water below 30% RH and regenerate below 60°C, a performance regime traditionally limited to physisorbents. Here, we show that the inherent hydrolytic instability of M′FSIX‐25‐M coordination networks enable regeneration‐optimized chemisorbents (ROCs) with projected ...
Xiang‐Jing Kong +15 more
wiley +2 more sources
Energy aspects of HVAC system configurations: problem definition and test cases [PDF]
, 2006 This paper studies the energy implications of HVAC system configuration by analysing energy balance and psychrometrics of typical and innovative systems.
Wright, Jonathan Andrew +2 more
core +6 more sources
HVAC Demand Response in Commercial Buildings: A Review [PDF]
Zhengzhou Daxue xuebao. Gongxue ban, 2021 Aiming at the problems of air conditioning system participating in power grid demand response, the demand response (DR) of multi energy interaction in building power grid is comprehensively studied and analyzed from the perspective of HVAC system ...
Meng Qinglong +5 more
doaj +1 more source
A structured approach to online education of future HVAC and energy professionals
, 2022 The HVAC sector is essential to realize the energy transition and is facing numerous challenges like educating enough HVAC engineers to carry out the task and being able to integrate knowledge from the construction, energy, IT and health sectors and to ...
Bluyssen, P.M. (author) +2 more
core +1 more source
IET Smart Grid, 2020 Due to the high cost of peak hour power generation and a push towards sustainability, the need for demand response (DR) is increasing. Compared to commercial-level DR, residential-level DR is more challenging.
Yue Zhang +4 more
doaj +1 more source