Cooling Urban Water Environments

Design Prototypes for Design Professionals

J. Cortesão, S. Lenzholzer, Lisette Klok, C.M.J. Jacobs, Jeroen Kluck

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

This paper presents five design prototypes for cool urban water environments developed in the 'Really cooling water bodies in cities' (REALCOOL) project. The REALCOOL prototypes address an urgent need: urban water bodies, such as ponds or canals, are often assumed to cool down their surroundings during days with heat stress, whereas recent research shows that this is not always the case and that urban water bodies may actually have warming effects too. There are, however, indications that shading, vaporising water, and proper ventilation can keep water bodies and their surroundings cooler. Yet, it is necessary to explore how these strategies can be optimally combined and how the resulting design guidelines can be communicated to design professionals. The REALCOOL prototypes communicate the spatial layout and biometeorological effects of such combinations and assist design decisions dealing with urban water environments. The micrometeorological simulations with Envi­met showed that the prototypes led to local reductions on daytime PET from 1 °C to 7 °C, upon introducing shade. Water mist and fountains were also cooling solutions. The important role of ventilation was confirmed. The paper discusses and concludes about the use of the prototypes as tools for urban design practice.
Original languageEnglish
Title of host publicationPLEA 2018: Smart and Healthy Within the Two-Degree Limit
Subtitle of host publicationProceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China
EditorsEdward Ng, Square Fong, Chao Ren
PublisherPLEA
Pages520-525
Number of pages6
Volume2
Publication statusPublished - 2019
EventPLEA 2018: Smart and Healthy Within the Two-Degree Limit: 34th International Conference on Passive and Low Energy Architecture - Hong Kong, China
Duration: 10 Dec 201812 Dec 2018

Conference

ConferencePLEA 2018: Smart and Healthy Within the Two-Degree Limit
CountryChina
CityHong Kong
Period10/12/1812/12/18

Fingerprint

cooling
ventilation
urban design
cooling water
shading
canal
warming
pond
water
urban water
water body
simulation
effect
need
city
mist
decision
fountain
project

Keywords

  • Urban Heat
  • Research Through Design
  • Prototype
  • Water bodies
  • Thermal sensation

Cite this

Cortesão, J., Lenzholzer, S., Klok, L., Jacobs, C. M. J., & Kluck, J. (2019). Cooling Urban Water Environments: Design Prototypes for Design Professionals. In E. Ng, S. Fong, & C. Ren (Eds.), PLEA 2018: Smart and Healthy Within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China (Vol. 2, pp. 520-525). PLEA.
Cortesão, J. ; Lenzholzer, S. ; Klok, Lisette ; Jacobs, C.M.J. ; Kluck, Jeroen. / Cooling Urban Water Environments : Design Prototypes for Design Professionals. PLEA 2018: Smart and Healthy Within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China. editor / Edward Ng ; Square Fong ; Chao Ren. Vol. 2 PLEA, 2019. pp. 520-525
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abstract = "This paper presents five design prototypes for cool urban water environments developed in the 'Really cooling water bodies in cities' (REALCOOL) project. The REALCOOL prototypes address an urgent need: urban water bodies, such as ponds or canals, are often assumed to cool down their surroundings during days with heat stress, whereas recent research shows that this is not always the case and that urban water bodies may actually have warming effects too. There are, however, indications that shading, vaporising water, and proper ventilation can keep water bodies and their surroundings cooler. Yet, it is necessary to explore how these strategies can be optimally combined and how the resulting design guidelines can be communicated to design professionals. The REALCOOL prototypes communicate the spatial layout and biometeorological effects of such combinations and assist design decisions dealing with urban water environments. The micrometeorological simulations with Envi­met showed that the prototypes led to local reductions on daytime PET from 1 °C to 7 °C, upon introducing shade. Water mist and fountains were also cooling solutions. The important role of ventilation was confirmed. The paper discusses and concludes about the use of the prototypes as tools for urban design practice.",
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year = "2019",
language = "English",
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Cortesão, J, Lenzholzer, S, Klok, L, Jacobs, CMJ & Kluck, J 2019, Cooling Urban Water Environments: Design Prototypes for Design Professionals. in E Ng, S Fong & C Ren (eds), PLEA 2018: Smart and Healthy Within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China. vol. 2, PLEA, pp. 520-525, PLEA 2018: Smart and Healthy Within the Two-Degree Limit, Hong Kong, China, 10/12/18.

Cooling Urban Water Environments : Design Prototypes for Design Professionals. / Cortesão, J.; Lenzholzer, S.; Klok, Lisette; Jacobs, C.M.J.; Kluck, Jeroen.

PLEA 2018: Smart and Healthy Within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China. ed. / Edward Ng; Square Fong; Chao Ren. Vol. 2 PLEA, 2019. p. 520-525.

Research output: Chapter in Book/Report/Conference proceedingConference paper

TY - GEN

T1 - Cooling Urban Water Environments

T2 - Design Prototypes for Design Professionals

AU - Cortesão, J.

AU - Lenzholzer, S.

AU - Klok, Lisette

AU - Jacobs, C.M.J.

AU - Kluck, Jeroen

PY - 2019

Y1 - 2019

N2 - This paper presents five design prototypes for cool urban water environments developed in the 'Really cooling water bodies in cities' (REALCOOL) project. The REALCOOL prototypes address an urgent need: urban water bodies, such as ponds or canals, are often assumed to cool down their surroundings during days with heat stress, whereas recent research shows that this is not always the case and that urban water bodies may actually have warming effects too. There are, however, indications that shading, vaporising water, and proper ventilation can keep water bodies and their surroundings cooler. Yet, it is necessary to explore how these strategies can be optimally combined and how the resulting design guidelines can be communicated to design professionals. The REALCOOL prototypes communicate the spatial layout and biometeorological effects of such combinations and assist design decisions dealing with urban water environments. The micrometeorological simulations with Envi­met showed that the prototypes led to local reductions on daytime PET from 1 °C to 7 °C, upon introducing shade. Water mist and fountains were also cooling solutions. The important role of ventilation was confirmed. The paper discusses and concludes about the use of the prototypes as tools for urban design practice.

AB - This paper presents five design prototypes for cool urban water environments developed in the 'Really cooling water bodies in cities' (REALCOOL) project. The REALCOOL prototypes address an urgent need: urban water bodies, such as ponds or canals, are often assumed to cool down their surroundings during days with heat stress, whereas recent research shows that this is not always the case and that urban water bodies may actually have warming effects too. There are, however, indications that shading, vaporising water, and proper ventilation can keep water bodies and their surroundings cooler. Yet, it is necessary to explore how these strategies can be optimally combined and how the resulting design guidelines can be communicated to design professionals. The REALCOOL prototypes communicate the spatial layout and biometeorological effects of such combinations and assist design decisions dealing with urban water environments. The micrometeorological simulations with Envi­met showed that the prototypes led to local reductions on daytime PET from 1 °C to 7 °C, upon introducing shade. Water mist and fountains were also cooling solutions. The important role of ventilation was confirmed. The paper discusses and concludes about the use of the prototypes as tools for urban design practice.

KW - Urban Heat

KW - Research Through Design

KW - Prototype

KW - Water bodies

KW - Thermal sensation

M3 - Conference paper

VL - 2

SP - 520

EP - 525

BT - PLEA 2018: Smart and Healthy Within the Two-Degree Limit

A2 - Ng, Edward

A2 - Fong, Square

A2 - Ren, Chao

PB - PLEA

ER -

Cortesão J, Lenzholzer S, Klok L, Jacobs CMJ, Kluck J. Cooling Urban Water Environments: Design Prototypes for Design Professionals. In Ng E, Fong S, Ren C, editors, PLEA 2018: Smart and Healthy Within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture, Dec 10-12, 2018, Hong Kong, China. Vol. 2. PLEA. 2019. p. 520-525