Results 71 to 80 of about 37,909 (240)

A Control Strategy With Hybrid Compressor Modeling for Electric Vehicle CO2 Heat Pump Systems

open access: yesEnergy Science &Engineering, EarlyView.
A hybrid PSO‐BP compressor sub‐model is developed and embedded in a MATLAB/Simscape physical model of a transcritical CO2 heat pump system for electric vehicles. Based on this high‐fidelity platform, a phased variable‐PTC cooperative control strategy is proposed and evaluated.
Jiaqi Dong   +5 more
wiley   +1 more source

CASE STUDY OF HVAC SYSTEM DESIGN WITH PARTIAL BIM INTEGRATION [PDF]

open access: yes, 2023
openThe reduction of greenhouse gas emissions and primary energy consumption have been among the most discussed topics in recent years. Within this context, the construction of new buildings, particularly the systems serving them, including Heating ...
FANTINATO, SIMONE
core  

An Experimental Study of Thermal Energy Storage With Phase‐Change Material in a Rectangular Box Filled With Aluminum Foam

open access: yesEnergy Science &Engineering, EarlyView.
We experimentally evaluate a rectangular latent‐heat thermal energy storage box filled with paraffin RT57. Embedding 1–3 aluminum‐foam pieces (ε ≈ 0.89 and 10 PPI) increases effective thermal conductivity, making the temperature field more uniform and accelerating phase change.
Mahdi Fatourehchi   +3 more
wiley   +1 more source

Reliability and Functional Availability of HVAC Systems [PDF]

open access: yes, 2004
This paper presents a model to calculate the reliability and availability of heating, ventilation and air conditioning systems. The reliability is expressed in the terms of reliability, maintainability and decision capability.
Myrefelt, S.
core  

Design Approaches for Oxygen Reduction Systems for Warehouse Storage Applications

open access: yesFire and Materials, EarlyView.
ABSTRACT Oxygen reduction systems (ORS) are protection systems, with a design protection objective to limit fire spread beyond the point of ignition. Research has shown that the prescriptive design methods, in VdS 3527, EN 16750, and ISO 20338, are not appropriate as prescriptive design methods as they result in insufficient protection levels.
Martin Nilsson   +3 more
wiley   +1 more source

TNO HVAC facilities [PDF]

open access: yes, 2015
TNO has extensive knowledge of heating, ventilation and air conditioning (HVAC), and can offer its services through theoretical studies, laboratory experiments and field measurements.
Hammink, H.A.J.
core  

Environmental Control for Edible Fungi Cultivation Based on Temporal Information and Deep Learning

open access: yesFood 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

Distributed Clustering-based Sensor Fault Diagnosis for HVAC Systems [PDF]

open access: yes, 2022
We design a Sensor Fault Detection and Isolation architecture for an IWSN monitoring an HVAC System, based on a clustering approach ...
Reci, Redona
core  

Comparison of multi-stage air treatment process divided by the same temperature and enthalpy difference [PDF]

open access: yesE3S Web of Conferences
The multi-stage air treatment system has been proposed recently, and lower grade chilled/hot water could be used and energy efficiency could be improved.
Wang Wentao   +3 more
doaj   +1 more source

Investigating the Environmental Impact of Additive Construction: A Systematic Analysis of the Life Cycle Assessment Studies

open access: yesSustainable Development, EarlyView.
ABSTRACT Additive Manufacturing (AM) has been identified as a potential catalyst for a paradigm shift within the construction industry, due to its capacity to enhance sustainability, reduce waste, and augment design flexibility. This study presents a systematic literature review (SLR) that explores the application of Life Cycle Assessment (LCA) in ...
Antonio Mastropasqua   +3 more
wiley   +1 more source

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