scholarly journals Thermal impact of street canyon microclimate on building energy needs using TRNSYS: A case study of the city of Tangier in Morocco

2021 ◽  
pp. 100834
Author(s):  
Adnane M’Saouri El Bat ◽  
Zaid Romani ◽  
Emmanuel Bozonnet ◽  
Abdeslam Draoui
Keyword(s):  
Street Canyon ◽  
Building Energy ◽  
Thermal Impact ◽  
Energy Needs ◽  
The City

The Importance of Proper Scheduling of Energy Equipment in Combined Heat and Power Plants for Buildings: A Case Study

2009 ◽  
Author(s):  
T. Agami Reddy ◽  
Itzhak Maor
Keyword(s):  
New York ◽  
Power Plants ◽  
Building Energy ◽  
Combined Heat And Power ◽  
Energy Needs ◽  
Study Results ◽  
Prime Movers ◽  
Cost Implications ◽  
Electric Loads

There is increasing interest in using Combined Heat and Power (CHP) systems to supply the energy needs in commercial/institutional buildings. However, due to the large diurnal and seasonal variability in building thermal and electric loads, such systems in buildings (BCHP) require more careful and sophisticated operation as compared to those in industrial CHP. Operating such systems consists of two separate issues: (i) equipment scheduling which involves determining which of the numerous equipment combinations to operate, i.e., is concerned with starting or stopping prime movers, boilers and chillers; and (ii) the second and lower level type of control, called supervisory control, which involves determining the optimal values of the control parameters (such as loading of primemovers, boilers and chillers) under a specific combination of equipment schedule. This paper is concerned with both these aspects, and presents case study results of a school under real-time electrical pricing (RTP) located in New York City, NY. A school has been selected for study because of its high diurnal and seasonal load variability. The approach first involved simulating the buildings using a detailed building energy simulation program to obtain hourly electrical and thermal loads which were then used to size the BCHP system components. Subsequently, a certain number of days in the year were identified, and simulation runs were performed for optimal scheduling control as well as for all the feasible (but non-optimal) equipment combinations. The energy and cost implications of operating the BCHP system in a non-optimal manner under various scheduling combinations are presented and discussed.

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 UTILIZATION OF ORGANIC FRACTION OF MUNICIPAL WASTE IN ACCORDANCE WITH THE PRINCIPLES OF CIRCULAR ECONOMY – A CASE STUDY

2017 ◽  
pp. 001
Author(s):  
Gordana Stefanovic ◽  
Biljana Milutinović ◽  
Milica Ivanović ◽  
Ana Momčilović
Keyword(s):  
Circular Economy ◽  
Municipal Waste ◽  
City Management ◽  
Organic Fraction ◽  
Organic Part ◽  
Elementary Analysis ◽  
Energy Needs ◽  
Proposed Model ◽  
The City

The organic fraction of municipal waste (MW) is a huge resource of nutrients and energy, primarily because of the high content of carbon as well as potassium and phosphorus. On the other hand, having in mind the problems that cities are faced with, such as energy supply, transportation, environmental pollution and many others, waste management has to be considered as an integral part of city management. Circular economy is a new concept of thinking which implies that all streams of a system should be considered as a possible resource, including waste. The organic part of municipal waste can be used in several ways. Anaerobic digestion (AD) that produces biogas and compost can be a part of the chain of circular economy of a city. This paper deals with the organic waste generated on the territory of the city of Nis with the focus on its potential in terms of carbon, hydrogen and mineral content. Based on the elementary analysis and quantity of waste, the streams of carbon and other elements that circulate through waste, biogas and compost have also been analyzed. Moreover, energy needs for AD function and transportation of both MW and compost are calculated. The analysis shows that the energy produced by AD can cover the energy needs for the proposed model, and the amount of produced compost is enough to recover nutrients on the majority of green yards in the city.

Study of Interior Materials as Passive Fire Protection in Karaoke Building (Case Study: Masterpiece Signature Family KTV Medan)

2020 ◽  
Vol 4 (1) ◽  
pp. 30-43
Author(s):  
Saras Ayu Faradita ◽  
Vinky Rahman
Keyword(s):  
Fire Protection ◽  
Analytical Hierarchy Process ◽  
Passive Protection ◽  
Fire Incident ◽  
Fire Disaster ◽  
Passive Fire Protection ◽  
Protection Systems ◽  
Hierarchy Process ◽  
The City

The fire incident in karaoke buildings in Indonesia which claimed many lives has occurred several times. According to the National Academy of Science US, the smoke toxins that come out of the fire disaster cause 50-80% of deaths. Refers to the data, it is necessary to check further about the building material response to fire during a fire incident. Masterpiece Signature Karaoke is a karaoke building that classified as large and magnificent in the city of Medan which has various material so that it is necessary to study the interior material as passive fire protection. The purpose is to find out how to assess the reliability of fire passive protection regard to the interior materials and recommendations or descriptions of right interior material planning using the Analytical Hierarchy Process (AHP). This method is efficacious to solve the problem of reliability in using interior materials as passive fire protection in Masterpiece Signature Family KTV Medan building with the results of an Adequate Level of reliability. Then, design recommendations were given for the use of interior materials in karaoke building to improve the reliability results to be better.The results are useful as information for other researchers and karaoke buildings regarding passive fire protection systems at the Masterpiece Signature Family KTV Medan.

Emplacing Berlin: Digital Itineraries and Short-term Study Abroad in the City

2018 ◽  
Vol 12 (1) ◽  
pp. 26-36 ◽  
Author(s):  
Richard B. Apgar
Keyword(s):  
Study Abroad ◽  
Urban Landscape ◽  
Physical Space ◽  
Short Term ◽  
Study Abroad Programs ◽  
Term Study ◽  
Digital Maps ◽  
Short Term Study ◽  
The City

As destination of choice for many short-term study abroad programs, Berlin offers students of German language, culture and history a number of sites richly layered with significance. The complexities of these sites and the competing narratives that surround them are difficult for students to grasp in a condensed period of time. Using approaches from the spatial humanities, this article offers a case study for enhancing student learning through the creation of digital maps and itineraries in a campus-based course for subsequent use during a three-week program in Berlin. In particular, the concept of deep mapping is discussed as a means of augmenting understanding of the city and its history from a narrative across time to a narrative across the physical space of the city. As itineraries, these course-based projects were replicated on site. In moving from the digital environment to the urban landscape, this article concludes by noting meanings uncovered and narratives formed as we moved through the physical space of the city.

Analysis of geodetic and legal documentation in the process of expropriation for roads. Krakow case study

2013 ◽  
Vol 62 (1) ◽  
pp. 67-84
Author(s):  
Anna Trembecka
Keyword(s):  
Local Government ◽  
Legal Status ◽  
The State ◽  
Property Value ◽  
Real Property ◽  
Construction Design ◽  
Special Rules ◽  
The City

Abstract Amendment to the Act on special rules of preparation and implementation of investment in public roads resulted in an accelerated mode of acquisition of land for the development of roads. The decision to authorize the execution of road investment issued on its basis has several effects, i.e. determines the location of a road, approves surveying division, approves construction design and also results in acquisition of a real property by virtue of law by the State Treasury or local government unit, among others. The conducted study revealed that over 3 years, in this mode, the city of Krakow has acquired 31 hectares of land intended for the implementation of road investments. Compensation is determined in separate proceedings based on an appraisal study estimating property value, often at a distant time after the loss of land by the owner. One reason for the lengthy compensation proceedings is challenging the proposed amount of compensation, unregulated legal status of the property as well as imprecise legislation. It is important to properly develop geodetic and legal documentation which accompanies the application for issuance of the decision and is also used in compensation proceedings.

Navigating Ethnic Hierarchies in Community-Academic Partnerships: A Case Study on Koreatown Community Politics

2019 ◽  
Vol 16 (1-2) ◽  
pp. 153-179
Author(s):  
Angie Chung ◽  
Johng Song ◽  
Carolyn Choi
Keyword(s):  
Executive Director ◽  
Urban Redevelopment ◽  
Pacific Rim ◽  
Ethnic Communities ◽  
Power Structures ◽  
The Pacific ◽  
Academic Partnerships ◽  
Communities Of Interest ◽  
The City

Based on the experiences of a Koreatown scholar, the executive director of a Koreatown nonprofit, and a longtime resident student, the article advocates for greater attention to the complex and dynamic power structures of ethnic enclaves in community-academic partnerships. We discuss the changing landscapes of Koreatown as the global nexus of the Pacific Rim economy, the city of Los Angeles’s urban redevelopment plans, and growing diversity and inequality. Programs that aim to engage effectively with ethnic communities must reassess how knowledge is produced and conveyed, how we structure partnerships within stratified communities, and how to grow from issue-based partnerships to broader communities of interest.

EXPLORING EX-ANTE IMPACTS AND SOCIAL AND SPORTIVE CHALLENGES OF HOSTING A FUTURE NEW INTERNATIONAL MAJOR EVENT: A CASE STUDY OF THE WORLD ROLLER GAMES IN BARCELONA

2020 ◽  
Author(s):  
Albert Saló ◽  
Laia López
Keyword(s):  
Social Economic ◽  
Research Question ◽  
City Image ◽  
Local Council ◽  
The World ◽  
Future Consequences ◽  
Mega Event ◽  
The City ◽  
The Postponement

Research Question: This analysis arises from the decision of the current local council of Barcelona regarding the postponement of the sporting mega-event ‘World Roller Games’, due to a lack of a social and sportive implication in this event. This research tries to shed some light on the matter and give evidence to the local council to become the world capital of skating. The research question is to analyse whether non-economic impacts could be relevant enough to organise a mega-event.Research Methods: The methodology is based on the perception and experience of spectators and participants on four main impacts (social, economic, sports city image and sports practice) using a survey from a National Roller Skating Championship in Spain, considering that this profile of respondents have a better knowledge of the current situation of this sport.Results and Findings: There are positive expected future consequences of this mega-event to be held in Barcelona in social and sportive terms. We can also conclude that the local council must still introduce some social and sportive policies in the city in order to improve the chances of success in social, sports practice and sportive brand image development.Implications: It is demonstrated that a mega-event should not be seen purely from a perspective of business generation, especially with minority sports like roller skating. There is a clear opportunity to develop social and sportive practice initiatives that can push social cohesion throughout the city thanks to a mega-event such as this one.

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