scholarly journals A Simplified Methodology for Existing Tertiary Buildings’ Cooling Energy Need Estimation at District Level: A Feasibility Study of a District Cooling System in Marrakech

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 944 ◽  
Author(s):  
Saeid Charani Shandiz ◽  
Alice Denarie ◽  
Gabriele Cassetti ◽  
Marco Calderoni ◽  
Antoine Frein ◽  
...  
Keyword(s):  
Historical Data ◽  
Cooling System ◽  
Energy Systems ◽  
Demand Estimation ◽  
District Level ◽  
District Energy ◽  
Systems Planning ◽  
Energy Needs ◽  
The City

In district energy systems planning, the calculation of energy needs is a crucial step in making the investment profitable. Although several computational approaches exist for estimating the thermal energy need of individual buildings, this is challenging at the district level due to the amount of data needed, the diversity of building types, and the uncertainty of connections. The aim of this paper is to present a simplified measurement-based methodology for estimating the cooling energy needs at the district level, which can be employed in the preliminary sizing and design of a district cooling network. The methodology proposed is suitable for tertiary buildings and is based on building electricity bills as historical data to calculate the yearly cooling demand. Then, the developed method is applied to a real case study: the feasibility analysis of a sustainable district cooling network for a hotel district in the city of Marrakech. The designed system foresees a 23-MWcold district cooling network that is 4 km long, supplying 26 GWh of cooling to the tourist area. The results show that the proposed methodology for cooling demand estimation is coherent with the other existing methods in the literature.

scholarly journals Techno-economic Analysis Of Integrated Energy Systems At Urban District Level – A Swedish Case Study

2018 ◽  
Vol 149 ◽  
pp. 286-296 ◽  
Author(s):  
Monica Arnaudo ◽  
Osama Ali Zaalouk ◽  
Monika Topel ◽  
Björn Laumert
Keyword(s):  
Economic Analysis ◽  
Energy Systems ◽  
District Level ◽  
Urban District ◽  
Integrated Energy Systems

scholarly journals Understanding creative hubs : the agglomeration of creativity in Toronto

2021 ◽  
Author(s):  
Amanda Chen XiaoXuan
Keyword(s):  
Conceptual Framework ◽  
District Level ◽  
Institutional Level ◽  
The North ◽  
Local Resources ◽  
Functional Value ◽  
Essential Components ◽  
The City ◽  
East West

This paper conducts an unprecedented research that thoroughly defines the concept of creative hubs as an urban mechanism that emerges from the need of effectively leveraging local resources to better facilitate creative activities and ultimately improve local economics. Building a conceptual framework that articulates the three essential components (the 3Ps) of creative hubs: people, place and planning, this study further analyzes the creative-hub distribution in the city of Toronto. Using a mapping approach to illustrate how different creative hubs scatter, it is observed that there exist congregations of institutional-level and district-level creative hubs along the north-south and east-west direction respectively in the City of Toronto. Finally, a case study on Liberty Village is conducted to scrutinize how a creative hub achieve [sic] its functional value basing [sic] on its people, place, and planning policies.

Multi-objective, multi-period optimization of district energy systems: IV – A case study

Energy ◽  
2015 ◽  
Vol 84 ◽  
pp. 365-381 ◽  
Author(s):  
Samira Fazlollahi ◽  
Gwenaelle Becker ◽  
Araz Ashouri ◽  
François Maréchal
Keyword(s):  
Energy Systems ◽  
Multi Objective ◽  
District Energy

scholarly journals Sizing Optimization of District Energy Systems Considering Meteorological, Demand, and Electricity Emission Factor Uncertainties

2021 ◽  
Author(s):  
Zahra Ghaemi ◽  
Thomas T. D. Tran ◽  
Amanda D. Smith
Keyword(s):  
Energy Systems ◽  
Energy System ◽  
University Of Utah ◽  
District Energy ◽  
Optimization Framework ◽  
Open Source Framework ◽  
The Cost ◽  
Energy Configurations ◽  
Energy Components

In this study, a framework is developed to perform two-stage stochastic programming in a district energy system. This framework optimizes the sizing of energy components to minimize the total cost and operating $CO_2$ emissions. Uncertainties in electricity demand, solar irradiance, wind speed, and electricity emissions are considered. A group of buildings at University of Utah is used as the case study to test the optimization framework. This study is novel by forming an open-source framework, considering electricity emissions with more details compared to previous studies in the literature, and performing the optimization for a campus in the U.S. This study’s results show the trade-off between cost and emissions when different energy configurations are used for three electricity purchasing cases. This framework can help facility managers to evaluate the optimum sizing of their district energy system to minimize the cost and emissions.

scholarly journals Technological options towards a carbon neutral town in central Italy

2021 ◽  
Vol 238 ◽  
pp. 08003
Author(s):  
Andrea Bartolini ◽  
Danilo Salvi ◽  
Leonardo Pelagalli ◽  
Flavio Caresana ◽  
Gabriele Comodi
Keyword(s):  
Renewable Energy Sources ◽  
Central Italy ◽  
District Heating ◽  
Energy Systems ◽  
Analysis Tool ◽  
Energy Demands ◽  
Polluting Emissions ◽  
The City ◽  
Technological Options

The paradigm of highly integrated cross sector energy systems grants several opportunities for welcoming high shares of renewable energy sources in meeting the energy demands of current urban districts. A key asset towards such challenge lies in the progressive deployment of more distributed energy systems, achieving configurations tailored to the needs of the local communities lying in their physical proximities. This study analyses the case study of a small town situated in central Italy, which energy supply already features a set of distributed and cross-sector energy resources such as a district heating network fed by a 1.2 MWe natural gas engine and more than 30 MWp of non-controllable renewables. The city energy systems are modelled in the analysis tool EnergyPLAN in order to analyse the technical feasibility of introducing different technological options aimed at reducing the polluting emissions generated in meeting different energy related needs of the district.

Sign in / Sign up

Export Citation Format

Share Document