Article
Construction & Building Technology
Daniel Fernando Espejel-Blanco, Jose Antonio Hoyo-Montano, Jaime Arau, Guillermo Valencia-Palomo, Abel Garcia-Barrientos, Hector Ricardo Hernandez-De-Leon, Jorge Luis Camas-Anzueto
Summary: This paper introduces a design approach to control the HVAC system of a building using a Raspberry Pi as a coordinator node and wireless connection with sensor nodes. The proposed PMV-based temperature control system achieves energy savings ranging from 33% to 44%.
Article
Construction & Building Technology
Vicente Gutierrez Gonzalez, German Ramos Ruiz, Carlos Fernandez Bandera
Summary: Calibrating building energy models is crucial for applications like demand response and model predictive control. This research examines different methods for characterizing thermal interaction with the ground in BEMs, comparing conventional and new approaches. By analyzing real building data, the study identifies EnergyPlus components that offer cost-effective characterization of ground-slab interaction.
ENERGY AND BUILDINGS
(2022)
Article
Green & Sustainable Science & Technology
Milen Balbis-Morejon, Juan J. Cabello-Eras, Javier M. Rey-Hernandez, Francisco J. Rey-Martinez
Summary: This study conducted an energy performance assessment on an educational building in Barranquilla, Colombia, and found that the Variable Refrigerant Flow (VRF) technology significantly improved the energy efficiency of the AC systems, resulting in savings in electricity consumption and life-cycle cost.
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Construction & Building Technology
Vasco Zeferina, F. Ruth Wood, Rodger Edwards, Wei Tian
Summary: This study examined the sensitivity of cooling demand related results in a large office building using two global sensitivity analysis methods. The findings showed that changes in peak demand were more significant than in annual demand, with ventilation rate being the parameter that contributed the largest for the uncertainty in electricity demand of the HVAC end-use.
ENERGY AND BUILDINGS
(2021)
Article
Construction & Building Technology
Hussein Al Jebaei, Ashrant Aryal
Summary: This paper investigates the impact of Personal Comfort Systems (PCS) on improving occupants' thermal satisfaction and energy consumption across different climates. The results show that incorporating PCS can significantly increase occupants' satisfaction with little increase in energy consumption.
ENERGY AND BUILDINGS
(2022)
Article
Construction & Building Technology
Chris Price, Deokgeun Park, Bryan P. Rasmussen
Summary: This paper presents the implementation of cascaded control architectures for Air Handling Unit chilled water valves in three university campus buildings. The results gathered for more than a year show that cascaded control eliminates hunting, provides better tracking, and consistent performance. The paper also discusses the efficiency losses due to hunting behavior and presents a cost savings analysis from implementing cascaded chilled water valve control.
Article
Thermodynamics
Rashmi Rekha Sahoo, Kartik Srivastava
Summary: This study investigates an innovative energy harvesting system that combines exhaust airflow and solar radiation with hybrid nanofluids, based on one-dimensional steady-state and heat diffusion equations. The results show that with specific configurations, energy savings of 28% and a significant reduction in CO2 emissions can be achieved, with an acceptable payback period of less than 5 years.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Construction & Building Technology
Man Wang, Borong Lin
Summary: This study proposes two data-driven control strategies for room temperature control in buildings. XGBoost and LSTM are used for energy consumption and room temperature prediction. One strategy predicts parameters for on-off states, while the other predicts parameters for power-on states. Results show that the second strategy successfully trains a usable DDPG model for controlling building HVAC systems.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Brian Considine, Aonghus McNabola, Prashant Kumar, John Gallagher
Summary: This paper examines and outlines the development of a novel inlet for an air handling unit (AHU) which controls PM concentration entering mechanically ventilated buildings. The aspiration efficiency reducer (AER) can reduce PM concentrations and improve indoor air quality, leading to energy savings and extended filter lifespan.
BUILDING AND ENVIRONMENT
(2022)
Article
Construction & Building Technology
Lu Chen, Qingshan Xu, Yongbiao Yang, Jing Song
Summary: This study explores optimal energy management of building energy systems considering multi-energy flexibility measures, including energy substitution and dynamic two-step DSM measures for peak shaving strategies. Case studies demonstrate that utilizing multi-energy flexibility measures can increase profit margins for building energy systems, optimized multi-load recovery strategies enhance flexibility potential, and establishing reasonable multi-load recovery mechanisms helps offset energy payback constraints.
ENERGY AND BUILDINGS
(2021)
Review
Construction & Building Technology
Gyueun Lee, Nadia Avelina, Donghyun Rim, Seokho Chi, Hyeunguk Ahn
Summary: This study conducted a comprehensive review of 65 peer-reviewed papers to compare the impacts of carbon-neutral building technologies (CNBTs) across different climate groups and building types. It found that non-residential buildings have greater carbon reduction potential, and building type influences the optimal payback periods for CNBTs. The findings suggest that integrating other building design features with CNBTs can effectively reduce payback periods and achieve carbon neutrality with economic feasibility.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Timothy Salsbury, Karthikeya Devaprasad, Robert Lutes, Austin P. Rogers
Summary: A significant focus of research and new technologies for reducing energy use in buildings is on operating the systems more efficiently during active times. However, the scheduling aspect of operation, which determines when the systems should or should not be active, is often overlooked. This paper introduces a simple optimization-based algorithm called Smart Building Start (SBS) to determine individual schedules for room controllers and central systems, enabling energy savings and increased comfort. The SBS algorithm is applicable to any type of building with a zonal or multi-zone HVAC system.
ENERGY AND BUILDINGS
(2023)
Article
Construction & Building Technology
Abed Al Waheed Hawila, Abdelatif Merabtine
Summary: Designing energy-efficient buildings that balance between energy savings and occupants' thermal comfort is crucial. Advanced control strategies based on thermal comfort are proposed, with sensitivity analysis and optimization used to identify design parameter values and optimize building design. Results show significant heating energy savings and enhanced thermal comfort with the suggested strategy, highlighting the importance of integrating thermal comfort in energy-efficient building design.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Jose J. Fierro, Cesar Nieto-Londono, Ana Escudero-Atehortua, Mauricio Giraldo, Hussam Jouhara, Luiz C. Wrobel
Summary: The feasibility of implementing a waste heat recovery system by capturing radiation emitted from a rotary kiln surface was evaluated using CFD analysis and process modeling. It was found that the recovered heat could be used to generate electricity and save energy, with economic feasibility depending on electricity prices.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Thermodynamics
Pooya Navid, Shirin Niroomand, Carey J. Simonson
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
(2019)
Article
Thermodynamics
S. Niroomand, M. T. Fauchoux, C. J. Simonson
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
(2019)
Article
Thermodynamics
Pooya Navid, Shirin Niroomand, Carey J. Simonson
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
(2019)
Article
Thermodynamics
Devin Stolle, Mohamed R. H. Abdel-Salam, Carey J. Simonson
Article
Thermodynamics
Masoud Rashidzadeh, Nader Pourmahmoud, Carey J. Simonson
APPLIED THERMAL ENGINEERING
(2019)
Article
Thermodynamics
Ahmed H. Abdel-Salam, Carey J. Simonson
SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT
(2020)
Article
Chemistry, Multidisciplinary
Mohsen Shakouri, Easwaran N. Krishnan, Abdalla H. Karoyo, Leila Dehabadi, Lee D. Wilson, Carey J. Simonson
Article
Thermodynamics
Adesola Oluwasijibomi Olufade, Carey James Simonson
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2020)
Article
Chemistry, Multidisciplinary
Abdalla H. Karoyo, Leila Dehabadi, Wahab Alabi, Carey J. Simonson, Lee D. Wilson
Article
Chemistry, Multidisciplinary
Wahab O. Alabi, Abdalla H. Karoyo, Easwaran N. Krishnan, Leila Dehabadi, Lee D. Wilson, Carey J. Simonson
Article
Thermodynamics
Easwaran N. Krishnan, Hadi Ramin, Mohsen Shakouri, Lee D. Wilson, Carey J. Simonson
APPLIED THERMAL ENGINEERING
(2020)
Article
Construction & Building Technology
Wahab O. Alabi, Easwaran N. Krishnan, Abdalla H. Karoyo, Leila Dehabadi, Lee D. Wilson, Carey J. Simonson
Summary: This study investigates the latent effectiveness of flax-fiber coated energy wheels and compares them with commercially available desiccants and other biomaterials in a wide range of operating conditions. The findings can be useful for the research and development of bio-materials for energy recovery systems in building applications.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Parisa Kazemiani-Najafabadi, Ehsan Amiri Rad, Carey James Simonson
Summary: This paper presents a novel ammonia-water cogeneration system driven by waste heat recovery, which can simultaneously generate cooling and power. By adjusting the maximum pressure and ammonia concentration, the ratio between net power and cooling capacity can be optimized, and the system can be further optimized using a genetic algorithm.
Article
Thermodynamics
Alireza Razmavar, Gurubalan Annadurai, Adesola Olufade, Carey J. Simonson
Summary: Crystallization fouling is a significant factor in the design and operation of membrane-based separation processes. This paper presents a semi-empirical model that predicts the fouling rate of membranes in liquid-to-air membrane energy exchangers (LAMEEs), and validates the model using experimental data.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Proceedings Paper
Thermodynamics
Adesola O. Olufade, Carey J. Simonson
ASHRAE TRANSACTIONS 2019, VOL 125, PT 1
(2019)
Article
Thermodynamics
Hai Zhao, Puzhen Gao, Xiaochang Li, Ruifeng Tian, Hongyang Wei, Sichao Tan
Summary: This study numerically investigates the interaction between flow-induced vibration and forced convection heat transfer in a tube bundle. The results show that the impact of flow-induced vibration on heat transfer varies in different flow velocity regions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rohit Chintala, Jon Winkler, Sugirdhalakshmi Ramaraj, Xin Jin
Summary: The current state of fault detection and diagnosis for residential air-conditioning systems is expensive and not suitable for widespread implementation. This paper proposes a cost-effective solution by introducing an automated fault detection algorithm as a screening step before more expensive tests can be conducted. The algorithm uses home thermostats and local weather information to identify thermodynamic parameters and detect high-impact air-conditioning faults.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
A. Azimi, N. Basiri, M. Eslami
Summary: This paper presents a novel optimization algorithm for improving the water-film cooling system of photovoltaic panels, resulting in a significant increase in net energy generation.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Duc-Thuan Phung, Chin-Hsiang Cheng
Summary: In this study, a novel CFDMD model is used to analyze and investigate the behavior of thermal-lag engines (TLE). The study shows that the CFDMD model effectively captures the thermodynamic behavior of the working gas and the dynamic behavior of the engine mechanism. Additionally, the study explores the temporal evolution of engine speed and the influence of various parameters on shaft power and brake thermal efficiency. The research also reveals the existence of a thermal-lag phenomenon in TLE.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Haiying Yang, Yinjie Shen, Lin Li, Yichen Pan, Ping Yang
Summary: The purpose of this article is to find a measure to improve the interfacial thermal transfer of graphene/silicon heterojunction. Through molecular dynamics simulation, it is found that surface modification can significantly reduce the thermal resistance, thereby improving the thermal conductivity of the graphene/silicon interface.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Qiong Wu, Yancheng Wang, Haonan Zhou, Xingye Qiu, Deqing Mei
Summary: This article introduces a visible methanol steam reforming microreactor, which uses an optical crystal as an observation window and measures the reaction temperature in real-time using infrared thermography. The results show that under lower oxygen to carbon ratio conditions, the microreactor has a higher heating rate and a stable gradient in temperature distribution.
APPLIED THERMAL ENGINEERING
(2024)
Review
Thermodynamics
Giulia Manco, Umberto Tesio, Elisa Guelpa, Vittorio Verda
Summary: In the past decade, there has been a growing interest in studying energy systems for the combined management of power vectors. Most of the published works focus on finding the optimal design and operations of Multi Energy Systems (MES). However, for newcomers to this field, understanding how to achieve the desired optimization details while controlling computational expenses can be challenging and time-consuming. This paper presents a novel approach to analyzing the existing literature on MES, with the aim of guiding practical development of MES optimization. Through the discussion of six case studies, the authors provide a mathematical formulation as a reference for building the model and emphasize the impact of different aspects on the problem nature and solver selection. In addition, the paper also discusses the different approaches used in the literature for incorporating thermal networks and storage in the optimization of multi-energy systems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xuepeng Yuan, Caiman Yan, Yunxian Huang, Yong Tang, Shiwei Zhang, Gong Chen
Summary: In this study, a multi-scale microgroove wick (MSMGW) was developed by laser irradiation, which demonstrated superior capillary performance. The surface morphology and performance of the wick were affected by laser scan pitch, laser power, repetition frequency, and scanning speed. The MSMGW showed optimal capillary performance in alumina material and DI water as the working fluid.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Maofei Mei, Feng Hu, Chong Han
Summary: This paper proposes an effective local search method based on detection of droplet boundaries for understanding the dynamic process of droplet growth during dropwise condensation. The method is validated by comparing with experimental data. The present simulation provides an effective approach to more accurately predict the nucleation site density in future studies.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Zhenhua Ren, Xiangjin Meng, Xingang Qi, Hui Jin, Yunan Chen, Bin Chen, Liejin Guo
Summary: This paper investigates the heat transfer mechanism and factors influencing thermal radiation in the process of supercritical water gasification (SCWG) of coal, and proposes a comprehensive numerical model to simulate the process. Experimental validation results show that thermal radiation accounts for a significant proportion of the total heat exchange in the reactor and a large amount of radiant energy exists in the important spectral range of supercritical water. Enhancing radiative heat transfer can effectively increase the temperature of the reaction medium and the gasification rate.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Mauro Abela, Mauro Mameli, Sauro Filippeschi, Brent S. Taft
Summary: Pulsating Heat Pipes (PHP) are passive two-phase heat transfer devices with a simple structure and high heat transfer capabilities. The actual unpredictability of their dynamic behavior during startup and thermal crisis hinders their large-scale application. An experimental apparatus is designed to investigate these phenomena systematically. The results show that increasing the number of evaporator sections and condenser temperature improves the performance of PHP. The condenser temperature also affects the initial liquid phase distribution and startup time.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Ke Gan, Ruilian Li, Yi Zheng, Hui Xu, Ying Gao, Jiajie Qian, Ziming Wei, Bin Kong, Hong Zhang
Summary: A 3-dimensional enhanced heat pipe radiator has been developed to improve heat dissipation and temperature uniformity in cooling high-power electronic components. Experimental results show that the radiator has superior heat transfer performance compared to a conventional aluminum fin radiator under different heating powers and wind speed conditions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xinyi Zhang, Shuzhong Wang, Daihui Jiang, Zhiqiang Wu
Summary: This study focuses on recovering waste heat from blast furnace slag using dry centrifugal pelletizing technology. A comprehensive two-dimensional model was developed to analyze heat transfer dynamics and investigate factors influencing heat exchange efficiency. The findings have important implications for optimizing waste heat recovery and ensuring safe operations.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xincheng Wu, An Zou, Qiang Zhang, Zhaoguang Wang
Summary: The boosting heat generation rate of high-performance processors is challenging traditional cooling techniques. This study proposes a combined design of active jet intermittency and passive surface modification to enhance heat transfer.
APPLIED THERMAL ENGINEERING
(2024)
