Article
Thermodynamics
Jianye Chen, Lei Xiao, Yimei Wu, Xu Gao, Hong Chen, Junlong Xie, Shuangquan Shao
Summary: This study explores the potential of reducing precooling cost in refueling stations through a composite hydrogen refueling process integrating a turbo-expander. Results show that the turbo-expander can reduce precooling energy consumption by 52.6% and lower infrastructure expenditure significantly. This indicates that the proposed process has remarkable potential in hydrogen fueling stations.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Xiaoling Yang, Liang Chen, Zhefeng Wang, Shuangtao Chen, Yu Hou
Summary: Spontaneous condensation process of moist air in a high-speed turbo-expander was investigated experimentally and numerically. A liquid fraction of 0.8% was achieved at the turbo-expander outlet corresponding to a relative humidity of 76.9% at 303.2 K. The nucleation process and droplet distribution in the turbo-expander were studied, and the wetness loss due to condensation mainly occurred in the impeller.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Jaroslaw Mikielewicz, Tomasz Ochrymiuk, Adam Cenian
Summary: This paper compares a traditional district heating system with a low-temperature DH system based on ORC technology. The results show that the ORC-based CHP system is more effective and fuel-efficient, leading to reduced carbon dioxide emissions. The most advantageous configuration is a combination of a central heat pump and a modern ORC-based station, which also provides independent electricity supply.
Article
Chemistry, Physical
Jianye Chen, Xinxin Gao, Shuangquan Shao, Haitao Hu, Junlong Xie, Nian Li, Neng Gao
Summary: This study investigates the potential of integrating a Ranque-Hilsch vortex tube (RHVT) in the precooling process for refueling high-pressure hydrogen vehicles at hydrogen refueling stations. Two novel precooling processes are proposed to reduce costs, and a numerical study shows that the RHVT exhibits energy separation effects with high-pressure hydrogen flow, with improved performance at higher pressure ratios. The integration of a RHVT into the precooling process is concluded to have potential in hydrogen fueling stations.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Hrvoje Dorotic, Tomislav Puksec, Daniel Rolph Schneider, Neven Dui
Summary: Central-Eastern European countries often do not fully utilize the potential for expanding thermal networks due to low energy market prices, which reduce the economic feasibility of proposed projects. While there are many optimization methods available for district heating systems, they rarely compare costs with individual heating solutions. Consequently, a novel method using multi-objective optimization is proposed to evaluate district heating systems in relation to individual systems, considering cost and carbon allocations in cogeneration units.
Article
Thermodynamics
Ming Liu, Shan Wang, Junjie Yan
Summary: This study addresses the operational flexibility of coal-fired CHP stations to accommodate high-penetration renewable power, using power-to-heat devices and optimization algorithms. The results show that the use of electric boilers and heat pumps, along with operational optimization models, can significantly reduce coal consumption and decrease CO2 emissions for CHP stations.
Article
Green & Sustainable Science & Technology
Haoran Li, Chenghui Zhang, Bo Sun
Summary: This study analyzed the characteristics of whole life operation of district energy system and proposed a deep integrated method to optimize various energy inputs and demands, achieving significant improvements in economic, energy, and environmental benefits compared to other integrated methods.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Chendong Wang, Jianjuan Yuan, Ke Huang, Ji Zhang, Lihong Zheng, Zhihua Zhou, Yufeng Zhang
Summary: This study proposes layer transfer model and merged transfer model for thermal load prediction of district heating station. The experiments show that these two models can maintain high prediction accuracy in cross-year and cross-site scenarios, and the prediction performance can be significantly improved when using the merged transfer model with insufficient training data.
Article
Engineering, Multidisciplinary
Xun Dou, Jun Wang, Donglou Fan, Ziang Li, Xuechun Liang, Jing Yang
Summary: This article examines the interaction mechanism and pricing strategies between HFS and HTPS, as well as HFEVs, in smart cities. Simulation and analysis results demonstrate that the proposed mechanism and strategies can improve the economic benefits of the HTPS and HFS systems.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Chen Bai, Lixiao Yao, Cheng Wang, Yongxuan Zhao, Weien Peng
Summary: Water and energy consumption in cascade pump station irrigation districts (CPSIDs) can be optimized to achieve water and energy savings, increase income, and protect the ecological environment. Adjusting crop planting structures and developing drip irrigation can change the spatial patterns and achieve optimal results.
Article
Engineering, Electrical & Electronic
Tian Lan, Kai Strunz
Summary: This paper discusses the importance of using thermal energy storage to maintain the supply temperature in a district heating system. It proposes a concept and implementation of droop control based on the power sharing relationship between the temperature of the district heating water and other thermal energy resources. The functionality of the control is demonstrated through application to a residential district heating network model using the simulation program PSCAD.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Engineering, Mechanical
Reza Ghanaee, Asghar Akbari Foroud
Summary: This paper presents an innovative approach to designing and managing energy and storage systems using scenario-based stochastic programming in a stand-alone TE-based microgrid. The uncertainty of flow, temperature, and pressure of input NG to PRS is accurately modeled using recurrence plot analysis. As a result, the TE capacity increased by 5% and the capital cost of TE-based microgrids has decreased by approximately 1.7% compared to initial forecasts.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Energy & Fuels
Mircea Stefan Simoiu, Ioana Fagarasan, Stephane Ploix, Vasile Calofir
Summary: This paper introduces a novel approach for optimizing the design and control of photovoltaic plants and energy storage systems for a metro station to enhance collective self-consumption and self-sufficiency at the district level. The methodology involves using Mixed Integer Linear Programming to determine the optimal solution and analyzing the impact of various configurations on overall district benefits through simulation scenarios. Additionally, a detailed case study is presented to highlight the advantages and flexibility of energy storage systems compared to scenarios with only photovoltaic plants.
Article
Energy & Fuels
Wennan Zhuang, Suyang Zhou, Wei Gu, Xiaogang Chen
Summary: Integrated Energy System (IES) has been proven effective in improving energy utilization and economic benefits. This paper establishes an optimized dispatching model for city-scale IES, considering the flexibility of city gas gate station and line packing, with results showing the potential benefits of pipeline storage compared to gas storage tanks. Various factors such as Renewable Energy Utilization and Gas-Electricity Price Ratio are analyzed to demonstrate the advantages of an Integrated Electricity and Gas System (IEGS).
Article
Construction & Building Technology
Zhiwei Li, Junjie Liu, Lizhi Jia, Yanmin Wang
Summary: In this study, a model predictive control (MPC) method was adopted to improve the temperature stability and regulation flexibility of a district heating (DH) station. By considering the thermal inertia of buildings and the delay of pipes, a dynamic model of the entire DH station was established and verified. The performance of the MPC method was evaluated and compared with the conventional control method (CCM), showing better results in improving room temperature stability and reducing energy consumption.
ENERGY AND BUILDINGS
(2023)
Article
Chemistry, Multidisciplinary
Amirreza Fateh, Davide Borelli, Alessandro Spoladore, Francesco Devia
APPLIED SCIENCES-BASEL
(2019)
Article
Construction & Building Technology
Amirreza Fateh, Davide Borelli, Helmut Weinlaeder, Francesco Devia
SUSTAINABLE CITIES AND SOCIETY
(2019)
Article
Construction & Building Technology
Davide Borelli, Paolo Cavalletti, Annalisa Marchitto, Corrado Schenone
ENERGY AND BUILDINGS
(2020)
Review
Green & Sustainable Science & Technology
Johan Augusto Bocanegra Cifuentes, Davide Borelli, Antonio Cammi, Guglielmo Lomonaco, Mario Misale
Article
Acoustics
Davide Borelli, Tomaso Gaggero, Enrico Rizzuto, Corrado Schenone
Summary: This paper analyzes the acoustic comfort in passenger cabins on board six passenger ships, evaluating the overall noise levels and the effects of HVAC systems. The study suggests that current regulations based solely on dB(A) limits may need to be revised to consider spectral components.
Article
Energy & Fuels
Davide Borelli, Francesco Devia, Corrado Schenone, Federico Silenzi, Luca A. Tagliafico
Summary: The paper introduces a novel integrated energy system utilizing LNG tanks to increase energy efficiency in port cities and reduce greenhouse gas emissions. By exploiting Boil Off Gas and cold exergy from LNG regasification, energy savings of up to 22% compared to standard technologies can be achieved, contributing to greener energy management in harbors. Simulation results confirm stability and effectiveness of the proposed system.
Article
Environmental Sciences
Johan Augusto Bocanegra, Davide Borelli, Tomaso Gaggero, Enrico Rizzuto, Corrado Schenone
Summary: The study analyzed noise sources in ports through experimental activities and proposed an application framework for acoustic cameras in characterizing port noise.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Luca Fredianelli, Tomaso Gaggero, Matteo Bolognese, Davide Borelli, Francesco Fidecaro, Corrado Schenone, Gaetano Licitra
Summary: Maritime transport, both for passengers and freight, is expanding and attracting more global attention towards sustainability. However, managing port noise is challenging due to limited knowledge on specific noise sources and the complexity of port areas. Noise maps are a useful tool for reducing citizens' noise exposure and ensuring traffic growth.
Article
Energy & Fuels
Davide Borelli, Alessandro Cavalletti, Paolo Cavalletti, Luca Antonio Tagliafico
Summary: This study provides an overview of thermal insulation materials, focusing on heat reflective insulators. A numerical investigation method is used to validate the thermal resistance performance of different reflective materials on the market. The simulation of typical walls in Italy shows that most heat-reflective materials do not meet the required transmittance. Economic analysis suggests that both heat reflective and traditional insulators have comparable costs, requiring a case-by-case evaluation of cost effectiveness.
Article
Thermodynamics
Emanuele Sarpero, Emmanuel Gourdon, Davide Borelli
Summary: The current state of research in acoustic refrigeration emphasizes the importance of robust and replicable experimental facilities. This article presents the construction of an economical and technologically simple Thermo-Acoustic Refrigerator (TAR) and discusses its repeatability and the robustness of its results. Innovative techniques for stack production and optimization are proposed, and the success of the experiments is validated through temperature gradients and numerical simulations using DeltaEC software.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
Review
Environmental Sciences
Samuele Schiavoni, Francesco D'Alessandro, Davide Borelli, Luca Fredianelli, Tomaso Gaggero, Corrado Schenone, Giorgio Baldinelli
Summary: Airborne port noise has historically lacked regulatory assessment compared to other transport infrastructures. Efforts have been made in recent years to improve this situation, resulting in the financing of many international cooperation research projects. The problem of port noise is complex, with multiple authorities, companies, and noise sources involved. Ship classification societies are developing procedures to assess airborne noise emissions. This article summarizes the recent research results on port noise sources to provide a comprehensive database for noise mapping and prevention of citizens' noise exposure.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Green & Sustainable Science & Technology
Davide Borelli, Francesco Devia, Corrado Schenone, Federico Silenzi, Federico Sollai, Luca A. Tagliafico
Summary: The increasing attention to environmental pollution and the need to reduce harmful emissions have led to stricter legislation worldwide for adopting efficient and sustainable solutions. This paper presents a method for calculating the environmental benefits of using LNG instead of traditional fossil fuels, based on emission factors available from the EEA. The methodology is applied to the Sardinia Region, showing that adopting LNG can effectively reduce air pollution.
ENERGY FOR SUSTAINABLE DEVELOPMENT
(2023)
Article
Engineering, Marine
Johan A. Bocanegra, Davide Borelli, Tomaso Gaggero, Enrico Rizzuto, Corrado Schenone
Summary: Understanding the specific characteristics of onboard noise is crucial for improving human activity in different ships. Onboard noise varies in terms of levels and frequency content depending on location and propagation paths, including primary and secondary sources. This study collected and analyzed noise spectra to provide an overview of noise characteristics in different spaces on military and commercial vessels. High noise levels exceeding accepted limits were found, with higher levels at low and high frequencies. Different noise indexes were tested to determine the annoyance level of onboard noise, and machine learning algorithms were used to classify and study the collected spectra, revealing different spectral typologies.
Article
Acoustics
Samuele Schiavoni, Francesco D'Alessandro, Giorgio Baldinelli, Cristiano Turrioni, Corrado Schenone, Davide Borelli, Giuseppe Marsico
Summary: This paper reports the main contents of guidelines developed in the framework of the ANCHOR project, aiming to define a common approach in port noise monitoring and assessment and produce Port Noise Impact Assessments. The paper also compares the noise mapping outcomes using the new and old noise mapping algorithms.
Article
Thermodynamics
Mario Misale, Johan Augusto Bocanegra, Davide Borelli, Annalisa Marchitto
APPLIED THERMAL ENGINEERING
(2020)
