+

What daylighting considerations could be used to improve some strategies of

design for the healing environment building and allow energy savings?

CARLOS CORNEJO CARDENASMSc AEES – CATMARCH 2012

+

+presentation

Introduction

Healing environment and daylighting

The term ‘healing architecture’

Daylight vs Health?

How good is the daylight in the Hospital?

What strategies are relevance in the healing architecture design?

Conclusions

+DAYLIGHTING HAS BEEN AN IMPLICIT PART OF BUILDING DESIGN FOR ALMOST AS LONG AS BUILDINGS HAVE EXISTED. (N. Baker, et Al ed., 2001)

The purpose is

Examine the potential of the daylighting in the health

The application of some design principles

Facilitate the identification of strategies of daylighting design that influence in the health in UK

+

Healing environment

Care symbolicall

y

Care socially

Care phisically

DAYLIGHTING

+Healing environment and daylighting

Healing architecture, - Creating a supportive environment physically

healthy and psychologically appropriate. - A healing environment with appropriate

physical aspects indirectly contribute to patients outcome.

+DAYLIGHT vs HEALTH

+

Advantage

physical psychological

Provision for some daylight and view out is much appreciated by patients

YES

There are strict colours rendering requirements placed on the light sources

YES YES

To prevent metabolic disorders YES YES

Resolve the necessity of uniform light

YES

+DAYLIGHT vs HEALTH

+DAYLIGHT vs HEALTH Disadvantage

physical psychological

Visual problems of daylighting are glare and veiling reflections

YES

To limit sun penetration so that thermal and visual discomforts

YES

The amount of light need restrictions, should be adjustable.

YES YES

Expose to ray UV YES

+How good is the daylight in the Hospital? Daylighting conditions have influence on the state of

mind and affect the psycho-emotional and general health.

For this the luminous environment plays an important role an integral part of the hospital’s healing environment. (Aripin, 2007)

Indispensable for the visual perception as well as in its influence in the immunological state.

Respect to ultraviolet light which is harmful, normal glass already eliminates.

Daylight is required in most areas: hall, lobby, corridors, reception, room patients, sun rooms, staff offices, services, etc.

+What strategies are relevance?

+

Effective healthcare design.

1 While the most valuable asset of daylight is its free availability,

2 The most difficult aspect is its controllability as daylight changes during the course of the day.

3 Daylighting is more of an art than a science, and it offers a broad range of technologies that provide glare-free balanced light, sufficient lighting levels, and good visual comfort.

+When designed correctly, daylighting lowers energy consumption and reduces operating and investment costs:

Reduced electricity use for lighting and peak electrical demand

Reduced cooling energy and peak cooling loads

Reduced fan energy and fan loads

Reduced maintenance costs associated with lamp replacement

Reduced HVAC equipment and building size and cost.

+However, to achieve this reduced cooling, the following criteria must be met:

- High-performance glazing to meet lighting design criteria and block solar radiation

- Effective shading devices, sized to minimize solar radiation during peak cooling times

- Electric lights, through the use of photo sensors, automatically dimmed or turned off

+CONCLUSIONS1. Proposes that healing architecture is a continuous process;

2. Light is essential for the initiation of design. Involves heating and natural ventilation.

3. It proves that energy saving can be made, in addition to direct health benefits for patients.

4. Characteristic of glazing, is a key issue in the possibility of solving the UV rays.

5. The correct daylight of different areas in hospitals, are those most likely to be experienced by those visiting a hospital as patients,

6. Challenges in the healing environments within this vision of saving energy.

Especially in the use the new materials, colours, textures, and atmospheres that produce different bright that affect the well being

+References ASHRAE Design Guide ed., 2009. Advanced Energy Design Guide for Small

Hospitals and Healthcare Facilitie. [on line]. Available at: http://aedg.ashrae.org/Download.aspx?type=registrants&aedg=4&source=0f2013ad-b448-46bf-8fec-88ad5f70a574. (Accesed: 15 Febrero 2012)

Backer N., 2012 Audio of the Lecture in CAT, Wales.

Boyce, P., 2009. The SLL Lighting Handbook (the society of light and lighting) [on line]. Available at: http://ezzatbaroudi.files.wordpress.com/2011/02/handbook.pdf Accesed: 15 Febrero 2012)

Karolides, A. et Al. , 2005, Desing for Health. [on line]. Available at: http://www.rmi.org/Knowledge-Center/Library/D05- Accesed: 15 Febrero 2012)

Kemp, M. ed. et al., 2010. Zero Carbon Britain 2030, A new energy strategy . The Second Report of the Zero Carbon Britain Project. [on line]. Available at: http://www.zerocarbonbritain.com Accesed: 15 Febrero 2012)

N. Baker, A. Fanchiotti, K. Steemers ed., 2001 Daylighting in architecture, a European Reference Book

S. Aripin., 2007. HEALING ARCHITECTURE’: DAYLIGHT IN HOSPITAL DESIGN. [on line]. Available at: http://mrt.academia.edu/RafidRifaadh/Papers/711511/HEALING_ARCHITECTURE_DAYLI Accesed: 15 Febrero 2012)

+Questions?

Thank you!