Results 61 to 70 of about 895 (131)

Modeling of HVAC Systems for Fault Diagnosis

IEEE Access, 2020
Analytical model based fault diagnosis method is seldom adopted for heating, ventilating and air conditioning (HVAC) systems as it is rather difficult to establish and verify an explicit model for HVAC systems.
Aibing Qiu, Ze Yan, Qiangwei Deng, Jianlan Liu, Liangliang Shang, Jingsong Wu   +5 more
doaj   +1 more source

Systematic Review of Flat Plate Photovoltaic Thermal Systems: Components, Efficiency, Monitoring, and Artificial Intelligence

Energy Technology, Volume 13, Issue 11, November 2025.
This article presents a review of flat‐plate hybrid solar panels, focusing on four key aspects: system components, parameters affecting efficiency, monitoring, and applications of artificial intelligence. The use of hybrid solar panels represents a promising technology for the simultaneous generation of electrical and thermal energy from solar ...
Amy Zulema Velasco Bonilla, Luis Hernández‐Callejo, Alberto Redondo‐Plaza, Karen Paola Koh Martin, Víctor Alonso Gómez, Carlos Enrique Torres Aguilar, Angel Zorita Lamadrid, Alejandro del Amo Sancho, Ali Bassam   +8 more
wiley   +1 more source

Advances in Research and Development of Transcritical CO2 Heat Pump Systems Intergrated With Sustainable Energy and Energy Storage: Applications and Perspectives

IET Smart Energy Systems, Volume 1, Issue 2, Page 168-200, September 2025.
This review focuses on the recent advances in the key research and technology development of transcritical CO2 heat pumps and integrated energy systems including sustainable ‘green’ heating, energy storage, electro‐thermal storage, waste heat recovery and disruptive electrification of renewable energy, combined heating and power, and new hybrid systems.
Lixin Cheng, Hongzhi Li, Haijun Wang
wiley   +1 more source

Validated TRNSYS model for solar assisted space heating system

2013 1st International Conference & Exhibition on the Applications of Information Technology to Renewable Energy Processes and Systems, 2013
The present study involves a validated TRNSYS model for solar assisted space heating system as applied to a residential building in Jordan using new detailed radiation models of the TRNSYS 17.1 and geometric building model Trnsys3d for the Google SketchUp™ 3D drawing program.
openaire   +3 more sources

A model for an economic evaluation of energy systems using TRNSYS [PDF]

Applied Energy, 2018
This paper presents a technical-economic model for the evaluation of energy systems called Energy Assessment Tool of Energy Projects (EATEP). It was created with the TRaNsient System Simulation Tool (TRNSYS) and works in parallel to the technical simulations in this software.
Villa Arrieta, Manuel Ricardo, Sumper, Andreas   +1 more
openaire   +3 more sources

Data Centers With Direct Liquid‐Cooled Servers: Experimental Analysis and Modeling

Energy Science &Engineering, Volume 13, Issue 7, Page 3605-3619, July 2025.
Direct liquid cooling enables higher cooling temperatures in data centers, reducing cooling energy demand and enabling waste heat reuse. However, elevated coolant temperatures increase server power consumption and thermal losses to the surrounding air. A TRNSYS‐based model was developed to evaluate these effects and support energy‐efficient data center
Maximilian Stahlhut, Markus Sekulla, Peter Großöhme, Axel Auweter, Thorsten Urbaneck   +4 more
wiley   +1 more source

Simulation of the thermal performance of a hybrid solar-assisted ground-source heat pump system in a school building

International Journal of Sustainable Energy, 2018
A hybrid solar-assisted ground-source heat pump (SAGSHP) system was designed, in the frame of an energy upgrade study, to serve as a heating system in a school building in Greece.
N. D. Androulakis, K. G. Armen, D. A. Bozis, K. T. Papakostas   +3 more
doaj   +1 more source

3E and Climatic Analysis of Hybrid Solar System Integrated With a Ground Source Heat Pump for Multi‐Micro‐Generation Energy Supply

Energy Science &Engineering, Volume 13, Issue 6, Page 3013-3030, June 2025.
ABSTRACT Renewable energy sources are extensively studied due to their clean and sustainable nature. Human energy needs can be classified into four categories: heating, cooling, electricity, and transportation. Heating and electricity have garnered more research attention because of their larger share and the variety of technologies used.
Nasrin Rashvand, Ahmad Hajinezhad, Alireza Kashani Lotfabadi, Seyed Farhan Moosavian   +3 more
wiley   +1 more source

Numerical Study of the Effect of Thermal Insulation and Window-to-wall Ratio on Reducing the Thermal Loads of the Residential Sector in Iraq [PDF]

Engineering and Technology Journal
The climate change that the world is witnessing has cast a greater shadow on the Middle East. Iraq, one of the region's countries, is experiencing harsh thermal conditions.
Abd Hussein, Ahmed saleh, Hamdi Ahmed
doaj   +1 more source

Interface‐Based Parallel and Multi‐Rate Real‐Time Simulations for Thermal‐Electric Systems

Engineering Reports, Volume 7, Issue 5, May 2025.
ABSTRACT The integrated energy system (IES) comes out with significant advantages in reducing carbon emissions and improving energy efficiency. However, the complicated electrothermal couplings in the IES operations pose significant challenges to dynamic process simulation.
Yanbo Jia, Pengfei Han, Zhaohui Shi, Lei Zhang   +3 more
wiley   +1 more source