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Sans healthcare watch
 

Sans healthcare watch

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    Sans healthcare watch Sans healthcare watch Presentation Transcript

    • SANS Committees: Healthcare Watch -Report Back Toby v Reenen CSIR
    • SANS 204: ENERGY EFFICIENCY IN BUILDINGS Services Working Group • Work being concluded on interpretation and application of XA2 50% hot water rule. • XA2 demands that 50% of annual hot water consumed be generated by means other than direct electric heating. • The intention of the rule is to save a minimum of 50% of the water heating energy. • Unfortunately the wording “by volume” in the ruling allows for significantly lower savings to be accepted by solar water heating and heat pump installations.
    • SANS 204: ENERGY EFFICIENCY IN BUILDINGS Services Working Group • Work being concluded on interpretation and application of XA2 50% HOT WATER RULE. • It is proposed that the voluntary SANS 204 standard pilot a more stringent requirement of demanding that 50% of the ENERGY REQUIRED in GENERATING the consumed hot water volume be from means other than direct electric heating. • The issue of the viability of induction geysers has also been raised for review.
    • SANS 204: ENERGY EFFICIENCY IN BUILDINGS - Climate Map • The Existing Climate Map is being reviewed: • Simple to interpret • Coarse resolution of “binning” doesn’t reflect local nuances in climate • Very difficult to measure and quantify • Doesn’t offer detailed insight to design information
    • SANS 204: ENERGY EFFICIENCY IN BUILDINGS - Climate Map • A Revised Map needs the following: • Map data needs to be relevant to building energy calculations, tools, regulations and standards • Needs to allow for clear interpretation by stakeholders • Needs to reflect the human perception of climate • Needs to reflect building response to climate (Passive design) • RH% • Convection?
    • SANS 204: ENERGY EFFICIENCY IN BUILDINGS - Climate Map • Proposed model • Calculate SET using current best climate data. • Develop index representing Summer-High & Winter-Low SET per cell. (A:B) • Single index could then be used in consideration of seasonal peak heating and cooling requirements
    • SANS 1544: ENERGY PERFORMANCE CERTIFICATES • This committee has established to finalise the drafting of the standard for energy performance certificates. • The measurement defined by this standard includes energy consumption data collected from one year of operation of a building but excluding its first year of operation. • The energy consumption data includes building as well as operational energy • This annual value will then be benchmarked against the guidance values from SANS 10400-XA.
    • SANS 1544: ENERGY PERFORMANCE CERTIFICATES • It is noted that the SANS 10400-XA does not define energy consumption guidelines data for healthcare buildings and the committee would welcome the submission of healthcare based energy consumption data for evaluation and inclusion.
    • SANS 10400-O: VENTILATION & LIGHTING • This committee was established to address a number of concerns regarding the lighting and ventilation requirements contained therein. • Of particular concern to healthcare buildings is the methodology adopted by and contents of Table 2. • Application of ASHRAE 62.1 • Additive Method • Nuanced Approach • Can result in more energy efficient systems • Requirements for Respiratory Isolation Rooms (WHO Guide) • Lighting: Task Lighting & Colour Rendering Index
    • IUSS: Ventilation Design Philosophy • Hierarchy of Design Solutions Area Occupied Fully Mechanical Ventilation Occupants/Equipment NOT ADAPTABLE or Tolerant of Indoor Conditions Hybrid systems with Climatic adaptability Fully Passive Ventilation Occupants/Equipment ADAPTABLE or Tolerant of Indoor Conditions
    • SANS 10400: Future work • Other work that will be addressed as the committees are established: • Fire protection requirements in healthcare buildings • (Your comments here) • (and here) • (and here)