Blar i NTNU Open på forfatter "Hamdy, Mohamed"
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A multi-stage optimization method for cost-optimal and nearly-zero-energy building solutions in line with the EPBD-recast 2010
Hamdy, Mohamed (Journal article; Peer reviewed, 2013)Finding cost-optimal solutions towards nearly-zero-energy buildings (nZEBs) in accordance with European energy performance of buildings directive (EPBD-recast 2010) is a challenging task. It requires exploring a huge number ... -
Avviksanalyse av energiforbruk mellom faktisk forbruk og norske standarder for skolebygninger i Trondheim
Badakhsh, Mosleh; Herigstad, Christer Daniel Burgos; Rahimi, Ali Muhammad (Bachelor thesis, 2022)Den overordnede målsettingen for oppgaven er å finne avvikskilder og dens størrelse, som utgjør et totalt avvik for energiforbruket til valgte bygninger. I tillegg er det et mål å øke bevisstheten rundt energiavvik. Oppgaven ... -
BROUGHT BY DEGREES: A FOCUS ON THE CURRENT INDICATORS OF LEAN ‘SMARTNESS’ IN SMART CITIES
Collins, Dave; Johansen, Agnar; Kalsaas, Bo Terje; Temeljotov Salaj, Alenka; Hamdy, Mohamed (Chapter, 2021)The purpose of this paper is to look at the indicators to which a city can be considered to be a smart city based upon the degree it meets specific indicators within the categories of ‘Social Smartness’, ‘Technological ... -
Building Renovation Plan - Introducing Energy and Cost into the Managerial Perspectives: A Case Study
Fahlstedt, Oskar Fredrik; Ramesh, Rakesh; Hamdy, Mohamed; Temeljotov Salaj, Alenka; Rasmussen, Freja Nygaard; Bohne, Rolf André (Peer reviewed; Journal article, 2024) -
Combining building automation control systems with envelope retrofitting to improve the energy performance of cold climate housing
Felius, Laurina Cornelia (Doctoral theses at NTNU;2021:167, Doctoral thesis, 2021)Improving the energy efficiency of buildings by combining envelope and energy systems retrofitting with smart technologies is recommended by the Energy Performance of Buildings Directive. The largest share of the existing ... -
Comparison of the Energy Saving Potential of Adaptive and Controllable Smart Windows: A State-of-the-Art Review and Simulation Studies of Thermochromic, Photochromic and Electrochromic Technologies
Tällberg, Kurt Inge Richard; Jelle, Bjørn Petter; Loonen, Roel; Gao, Tao; Hamdy, Mohamed (Journal article; Peer reviewed, 2019)Windows play a huge role in today’s buildings, allowing for outside view and providing occupants with daylight. However, windows are also often considered to be one of the weakest building components with respect to high ... -
Daylight requirements in the Norwegian Regulations vs. the European Standard: A case study considering thermal performance
Solvang, Helene (Master thesis, 2019)I denne masteroppgaven er Norsk Byggteknisk Forskrift TEK17 og den Europeiske Standarden for Dagslys FprEN17037 blitt sammenlignet med hensyn på dagslys, samt hvilke konsekvenser for termisk komfort og energibehov de ulike ... -
Effect Of Grid Tariffs On Demand-side Management In All-electric Buildings In Norway
Karlsen, Sophie Schønfeldt; Backe, Stian; Hamdy, Mohamed (Journal article, 2019)The increased share of inflexible, renewable energy sources in power systems is challenging the balancing of demand and supply. Rapid and unpredictable load variations might require large power grid capacities to ensure ... -
A Generic Pipeline for Machine Learning Users in Energy and Buildings Domain
Bashery Abb, Mahmoud Abdelkader; Hamdy, Mohamed (Peer reviewed; Journal article, 2021)One of the biggest problems in applying machine learning (ML) in the energy and buildings field is the lack of experience of ML users in implementing each ML algorithm in real-life applications the right way, because each ... -
Green public procurement and energy performance contracting: exploring the linkage and improvement opportunities
Hamdan, Hasan; De Boer, Luitzen; Hamdy, Mohamed (ZEN Report;29, Research report, 2020)Energy Performance Contracting (EPC) is a method to finance energy efficiency investments from cost savings in the building sector. Under an EPC arrangement, an external organization, an Energy Service Company (ESCO), ... -
Impact of building envelope parameters on occupants’ thermal comfort and energy use in courtyard houses
Hamdy, Mohamed; Ghorbani Naeini, Hoorieh; Norouziasas, Alireza (Journal article, 2023)Courtyard houses constructed recently with air-conditioning systems need to increase efficiency by simultaneously reducing thermal load and improving thermal comfort in all seasonal zones around the yard. The envelope ... -
Impact of Positioning Phase Change Materials on Thermal Performance of Buildings in Cold Climates
Norouziasas, Alireza; Yin, Hang; Hamdy, Mohamed (Peer reviewed; Journal article, 2023)The building envelope, an essential component of any building, plays a critical role in meeting energy efficiency and thermal comfort requirements. Incorporating phase change materials (PCM) into the building envelope can ... -
Multi-Objective Optimization of Building Energy Design to Reconcile Collective and Private Perspectives: CO2-eq vs. Discounted Payback Time
Hamdy, Mohamed; Mauro, Gerardo Maria (Journal article; Peer reviewed, 2017)Building energy design is a multi-objective optimization problem where collective and private perspectives conflict each other. For instance, whereas the collectivity pursues the minimization of environmental impact, the ... -
Potential for Heating Demand Reduction and Energy Flexibility by Improved Control and Automation of Heaters for Typical Norwegian Residential Buildings
Justad, Lars A. (Master thesis, 2022)Den norske bygningsmassen har et særdeles høyt strømforbruk i kalde måneder grunnet romoppvarming. En reduksjon i oppvarmingsbehov vil både gi besparelser og bidra i kampen mot global oppvarming ved å redusere CO2-utslipp. ... -
Predicting annual illuminance and operative temperature in residential buildings using artificial neural networks
Kristiansen, Tobias (Master thesis, 2021)Mennesker bruker 87 % av tiden sin innendørs, for det meste i sin egen bolig. Innemiljøet er en avgjørende faktor for folks helse og velferd. Det er en økende utfordring med overoppheting i bygninger på grunn av varmere ... -
Predicting annual illuminance and operative temperature in residential buildings using artificial neural networks
Kristiansen, Tobias; Jamil, Faisal; Hameed, Ibrahim A.; Hamdy, Mohamed (Peer reviewed; Journal article, 2022)Simulation-based multi-objective optimizations is proving to be an effective approach for supporting the building design and finding a balance between daylight availability, thermal comfort and energy performance. This ... -
Quantification of Energy Flexibility and Survivability of All-Electric Buildings with Cost-Effective Battery Size: Methodology and Indexes
Homaei, Shabnam; Hamdy, Mohamed (Peer reviewed; Journal article, 2021)All-electric buildings are playing an important role in the electrification plan towards energy-neutral smart cities. Batteries are key components in all-electric buildings that can help the demand-side energy management ... -
Resilient cooling of buildings to protect against heat waves and power outages: Key concepts and definition
Attia, Shady; Levinson, Ronnen; Ndongo, Eileen; Holzer, Peter; Kazanci, Ongun; Homaei, Shabnam; Zhang, Chen; Olesen, Bjarne W.; Qi, Dahai; Hamdy, Mohamed; Heiselberg, Per (Peer reviewed; Journal article, 2021)The concept of climate resilience has gained extensive international attention during the last few years and is now seen as the future target for building cooling design. However, before being fully implemented in building ... -
A Review of Electricity Tariffs and Enabling Solutions for Optimal Energy Management
Zaki, Dina A.; Hamdy, Mohamed (Peer reviewed; Journal article, 2022)oday, electricity tariffs play an essential role in the electricity retail market as they are the key factor for the decision-making of end-users. Additionally, tariffs are necessary for increasing competition in the ... -
Sensitivity analysis for investigating the energy performance of a retrofitted kindergarten under different weather scenarios
Eggebø, Håkon (Master thesis, 2017)Sensitivity analysis is a technique that aims at estimating how the uncertainty in the independent variables of a mathematical model effects a particular dependent variable given a predefined set of assumptions. This method ...