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Overdesign in building services: the hidden energy use

Overdesign in building services: the hidden energy use

Year: 2017

Section: Resource Sensitive Design, Design Research Applications and Case Studies

Editor: Anja Maier, Stanko Škec, Harrison Kim, Michael Kokkolaras, Josef Oehmen, Georges Fadel, Filippo Salustri, Mike Van der Loos

Author: Jones, Darren; Eckert, Claudia

Series: ICED

Institution: The Open University, United Kingdom

Section: Resource Sensitive Design, Design Research Applications and Case Studies

Pages: 159-168

ISBN: 978-1-904670-89-6

ISSN: 2220-4342

Abstract

This paper categorises and describes the various types of margins that are applied during building services design, and highlights the various stakeholders involved, from the early specification of requirements, through to the engineering design specification and installation. Using a case study of a hospital boiler upgrade, the paper differentiates between margins built into the to regulatory, clinical, and contractual requirements, and the margins applied through the engineering design choices that allow for various contingencies and uncertainties. To meet energy targets, hospitals invest in products that use less energy. Whilst such interventions, such as lighting upgrades and control improvements provide some efficiencies, over-design of core systems often negate the savings. The over-specification and over-design of building service systems often results from the cumulative addition of various design margins. It is quite possible that sometimes margins are added as a matter of habit with no real thought as to whether they are really applicable to a particular situation, calling into question the issue of design procedures.

Keywords: Communication, Decision making, Case study, Human behaviour in design, Design margins

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ds conferenceICED17 The 21st International Conference on Engineering Design, 21-25th August 2017

ICED17 The 21st International Conference on Engineering Design, 21-25th August 2017The 21st International Conference on Engineering Design ICED17 to be held August 21-25, 2017, in Vancouver, British Columbia, Canada. Theme: Resource-Sensitive Design Paper submission deadline: December 19, 2016 For full details go to: http://iced17.org. The forthcoming International Conference on Engineering Design, ICED17, will continue to be a great forum where the design community comes together to share insights, discover new ideas, create new design ventures, and form friendships....

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