Energiemanagement

2021 ◽  
Author(s):  
Markus Hubbuch ◽  
Stefan Jäschke Brülhart
Keyword(s):  

Dieses Buch vermittelt Grundlagen, Methoden und Zusammenhänge des Energiemanagements. Es werden wichtige Begriffe, neue Techniken, Anwendungen und Hilfsmittel erklärt. Das Verständnis grundlegender physikalischer Zusammenhänge ermöglicht einfache Berechnungen und Vergleiche. Checklisten helfen bei der Umsetzung und erleichtern es, wichtige Entscheidungen im Hinblick auf Planung und Betrieb zu fällen. Die Publikation richtet sich an alle, die mit Bau, Betrieb und Erhaltung von Gebäuden zu tun haben. Insbesondere Betreiber von Gebäuden, Planerinnen, Facility Manager, Verwalter, Architektinnen und Bauherren können profitieren. Das Buch fokussiert auf Themen des Managements und der energetischen Betriebsoptimierung, um ein systematisches Vorgehen und einen nachhaltigen Erfolg des Energiemanagements zu ermöglichen. Damit wird das Gelingen der Energiewende und der Klimaziele wirksam unterstützt. Derzeit wird die grösste Energiemenge im Gebäudebereich verbraucht. Mit einem zielgerichteten Management des Gebäudebetriebs sowie mittels Energiemanagement können wesentliche Einsparpotenziale realisiert werden. In kurzer Zeit und mit vergleichsweise wenig Investitionen können Kosten gespart und Treibhausgasemissionen verringert werden.

2021 ◽  
Vol 54 ◽  
Author(s):  
Deryck J. Mills

Abstract Cryo-electron microscopy (cryo-EM) has become the technique of choice for structural biology of macromolecular assemblies, after the ‘resolution revolution’ that has occurred in this field since 2012. With a suitable instrument, an appropriate electron detector and, last but not least, a cooperative sample it is now possible to collect images from which macromolecular structures can be determined to better than 2 Å resolution, where reliable atomic models can be built. By electron tomography and sub-tomogram averaging of cryo-samples, it is also possible to reconstruct subcellular structures to sub-nanometre resolution. This review describes the infrastructure that is needed to achieve this goal. Ideally, a cryo-EM lab will have a dedicated 300 kV electron microscope for data recording and a 200 kV instrument for screening cryo-samples, both with direct electron detectors, and at least one 120 kV EM for negative-stain screening at room temperature. Added to this should be ancillary equipment for specimen preparation, including a light microscope, carbon coater, plasma cleaner, glow discharge unit, a device for fast, robotic sample freezing, liquid nitrogen storage Dewars and a ready supply of clean liquid nitrogen. In practice, of course, the available budget will determine the number and types of microscopes and how elaborate the lab can be. The cryo-EM lab should be designed with adequate space for the electron microscopes and ancillary equipment, and should allow for sufficient storage space. Each electron microscope room should be connected to the image-processing computers by fibre-optic cables for the rapid transfer of large datasets. The cryo-EM lab should be overseen by a facility manager whose responsibilities include the day-to-day tasks to ensure that all microscopes are operating perfectly, organising service and repairs to minimise downtime, and controlling the budget. Large facilities will require additional support staff who help to oversee the operation of the facility and instruct new users.


Author(s):  
Siddharth Bhopte ◽  
Dereje Agonafer ◽  
Roger Schmidt ◽  
Bahgat Sammakia

In a typical raised floor data center with alternating hot and cold aisles, air enters the front of each rack over the entire height of the rack. Since the heat loads of data processing equipment continues to increase at a rapid rate, it is a challenge to maintain the temperature within the requirements as stated for all the racks within the data center. A facility manager has discretion in deciding the data center room layout, but a wrong decision will eventually lead to equipment failure. There are many complex decisions to be made early in the design as the data center evolves. Challenges occur such as optimizing the raised floor plenum, floor tile placement, minimizing the data center local hot spots etc. These adjustments in configuration affects rack inlet air temperatures which is one of the important key to effective thermal management. In this paper, a raised floor data center with 4.5 kW racks is considered. There are four rows of racks with alternating hot and cold aisle arrangement. Each row has six racks installed. Two CRAC units supply chilled air to the data center through the pressurized plenum. Effect of plenum depth, floor tile placement and ceiling height on the rack inlet air temperature is discussed. Plots will be presented over the defined range. Now a multi-variable approach to optimize data center room layout to minimize the rack inlet air temperature is proposed. Significant improvement over the initial model is shown by using multi-variable design optimization approach. The results of multi-variable design optimization are used to present guidelines for optimal data center performance.


Author(s):  
Dean Kashiwagi ◽  
Alfredo Rivera ◽  
Jake Gunnoe ◽  
Jacob Kashiwagi

Arizona State University has been involved in identifying the future Facility Manager (FM) paradigm which results in a sustainable FM profession. The $16M, 20-year international research program has identified, created and tested out a solution to the almost impossible task of replacing the aging FM professionals. The research has identified the future FM as one who is leadership based and leads the entire supply chain from inside the organization. This paper will cover the three year results of finding the future FM by accessing the top 10% of ASU’s 85,000 students through Barrett’s Honors Program, 7th – 10th graders through the Barrett’s Summer Honors Program, and culminating this year in placing the education in one of the top private schools in the state of Hawaii for high school students, testing the approach on 116 Brazilian engineering undergraduate students and getting approval for testing a 14 week program in the Tempe High School. The model is proposed as a prototype for future FM professionals and how the FM professional can become sustainable.


2013 ◽  
Vol 38 (2) ◽  
pp. 66-75
Author(s):  
Lívia Róka-Madarász ◽  
Levente Mályusz

The aim of this paper is to evaluate the factors of gentrification based on the economical social and architectural framework in the field of maintenance management of real estates. Andrássy Avenue, announced to be a part of the UNESCO World Heritage site in 2002, is an inner-city neighbourhood in Budapest, which underwent a significant renewal process during the last two decade. This area was chosen because it represents very different types of gentrification processes. There are three research indicators defined and modelled over the statistical data. The applied modelling for evaluation of the gathered data are descriptive statistics and main factor analysis for the Shevky-Bell indices. The statistical model predicts that property market prices will rise after the architectural transformation however it will not have significant impact on the prices of the flats with bad conditions in the neighbourhood. This paper examines the renewals of the residential apartments as rent-gap or social displacement occurs. Factor points out that what motivate the young highly educated residents to move in the neighboured apartments of the Liszt Ferenc square area and what is the architectural benefit of these displacements. The facility manager of these buildings must be aware of the social profile of the owners of the individual properties inside the building to create their annual maintenance budget. The effects of rent-gap and the change in property functions are demonstrated as case study of the renewed residential palace in the under Teréz Town area of the Andrássy Avenue.


2018 ◽  
Vol 9 (2) ◽  
pp. 181-187 ◽  
Author(s):  
J. Pašek ◽  
V. Sojková

The current development of smart buildings is conditioned by the development of smart technologies, bringing many new phenomena into the construction industry that change ownership, user and management environments. The optimized and truly functional smart building already includes engineering and non-technical aspects, which must, however, be respected during all life cycles. This requires the emergence of completely new expertise or the extension of the existing expertise, including facility management. Smart buildings enable cost savings and facilitated operation to facility management. Moreover, smart buildings also contain significant multidisciplinarity, especially in pertaining technical areas. This requires the facility manager to monitor individual disciplines and ensure their interoperability and optimal functioning to meet the needs of building users. This contribution is based on practical experiences and focuses on the analysis of the new demands that smart buildings require in management issues, the evaluation of synergies between smart buildings and efficient facility management for maximizing the use of the building and its sustainability. It also quantifies the benefits of facility management for the operation of smart buildings and their utility value, depending on the degree of integration of services.


Facilities ◽  
2020 ◽  
Vol 38 (11/12) ◽  
pp. 859-870 ◽  
Author(s):  
Alenka Temeljotov Salaj ◽  
Savis Gohari ◽  
Coline Senior ◽  
Yan Xue ◽  
Carmel Lindkvist

Purpose The purpose of this paper is to test possibilities of real participation in FM field in response to the energy sustainable demand by using new technologies for better communication. It is acknowledged that the technological innovation is a necessary condition to make a city sustainable, though the challenge is not primarily on technology but on service transformation and improvement. Improving service quality requires the participatory and synergetic processes that attract an extra attention to the social and management aspects of urban planning. Design/methodology/approach This is an evidence-based research, which shows how FM can extent its impact on the build environment and society by bringing the socio-physiological aspect and the community in the central of the planning and design process. Findings An “urban” facility manager, through integration of multiple disciplines in a human-centre approach, can become the enabler and implementer of sustainable urban ecosystem, i.e. balancing social, economic and environmental pillars. This requires central involvement of FM in the planning and decision-making processes; therefore, its role and impact should be enlarged and better communicated. The enlargement of the FM's role initially requires an effective communication with people, whose behavioural change are prerequisite for the sustainability transition. The communication between FM and people should be interactive and iterative, in which they both define problems/needs and co-create the relevant solutions. Research limitations/implications This paper depicts an evidence-based FM practice, in which the website as an interactive tool is co-designed by the “facility management” students and the citizens to contribute to the real citizen participation in an effective communication process. Originality/value The high value for both, citizens and facility manager, is co-created information platform for upgrading the sustainability level and well-being in the communities. The tool is seen as an important starting contribution for the Paris climate agreement, and as a step toward human-centric-oriented urban sustainable regenerating project.


2019 ◽  
Vol 23 (5) ◽  
pp. 354-365 ◽  
Author(s):  
Yongkui Li ◽  
Yan Zhang ◽  
Jianjun Wei ◽  
Yilong Han

Facility management (FM) has received extensive attention from practitioners and researchers. While FM is continuously maturing as a scientific discipline and relevant studies are constantly growing, there are no holistic reviews of current research. The information in previous studies is generally scattered, and existing literature reviews mostly focused on specific aspects of FM. It is necessary for researchers and practitioners to obtain a thorough view of the current status in the FM field and future development trends that have been summarized and discussed in depth. Using a bibliometricqualitative analysis, a total of 724 academic journal papers on FM, between 1995 and 2018, were reviewed. A number of the latest advancements and emergent trends were identified based on knowledge maps in FM, including changing circumstances, enhancing information technology, all-around facility manager, strategic performance management, sustainable FM and innovative FM practice. It is hoped that this review can help researchers understand the current body of FM knowledge. The future directions were also highlighted in this study to help researchers identify areas where research is most needed. This study could also help practitioners to address upcoming challenges in the FM field.


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