F6 THERMAL COMFORT 1 precondition Flashcards

1
Q

Thermal comfort - how many and which preconditions?

A

P Thermal Performance

Provide a thermal environment that the majority of building users find acceptable.

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2
Q

Thermal comfort greatly influences our experiences in the places where we live and work and is one of the highest contributing factors influencing overall human satisfaction in buildings impacting individual levels of (4)

Its influence on (3) systems

A

motivation, alertness, focus, and mood.

The integumentary, endocrine, and respiratory system.

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3
Q

Employees perform on average ?? % poorer in hot conditions and on average $$% poorer in cold conditions

Overly warm and cold indoor spaces are linked to (define different health problems for both 5+2)

A

15% /14 %

HOT linked to increases in sick building syndrome symptoms, irregular heart rate, respiratory issues, fatigue and negative mood.

COLD linked to increased effort and work towards maintaining proper posture and increased risk for chronic issues related to musculoskeletal health

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4
Q

Mechanically conditioned space will be satisfied with the thermal environment based on six core parameters:

A

air temperature, humidity, air movement,

mean radiant temperature of surrounding surfaces, metabolic rate and clothing insulation

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5
Q
P1 Thermal performance 
part 1 (+3 options)
A

Part 1
Provide Acceptable Thermal Environment

Option 1: Performance verified environmental conditions

(mech.cond. PMV +/-0.5° 90% hours&spaces /
naturally conditioned tpma out 17-26°C
mixed mode-both)

Option 2: Long-term thermal data (T06)

humidity 6months/ PMV / dry temp 21-25 for 90% of hours/ air velocity 0.2 m/s at 1.7 m above the floor.

Option 3: Thermal comfort surveys (T02)
min 2 pts in T02

PMV predicted mean vote- ) model stands among the most recognized thermal comfort models
Prevailing Mean Outdoor Temperature, tpma(out)

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6
Q

Thermal performance P - part 2 (+2 options)

A

Part 2
Monitor Thermal Parameters

Option 1: Annual testing (dry-bulb temperature, relative humidity, air speed/ 2 per year /PVG

Option 2: Continuous monitoring (T06 Thermal Comfort Monitoring)

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7
Q

Thermal Performance P
Part 1
Provide Acceptable Thermal Environment For Commercial Kitchen Spaces
The following requirement is met: The operative temperature in the kitchen does not exceed ?? °C

A

The operative temperature in the kitchen does not exceed 27 °C.

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8
Q

Thermal concept- how many and which optimizations

A

(6)

Feature T02  Verified Thermal Comfort
Feature T03  Thermal Zoning
Feature T04  Individual Thermal Control
Feature T05  Radiant Thermal Comfort
Feature T06  Thermal Comfort Monitoring
Feature T07  Humidity Control
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9
Q

Thermal concept- how many and which beta features

A

(2)

Feature T08 Optimization
β Enhanced Operable Windows

Feature T09 Optimization
β Outdoor Thermal Comfort

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10
Q

Feature T02 Optimization
Verified Thermal Comfort

Enhance thermal comfort and promote human productivity, by ensuring that a substantial majority of building users (above 80%) perceive their environment as thermally acceptable

part 1

A

Part 1
Survey for Thermal Comfort (Max: 3 points)
For All Spaces

regular occupants (less than 20 /80%, entro 45- 15, more 35% of occup) / 2 per year/ 80% (90% 3 pts) 
appendix sample or c04 / min 6 months post occupancy)
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11
Q

T03 Thermal Zoning

Enhance thermal control of building occupants through the provision of thermal zones.
part 1

A

Part 1
Provide Thermostat Control (Max: 2 points)

90% occ.space

thermal zones (60mq/10 occupants or 30m/5)
accessible manual thermostat &digital interface

positioning of temperature sensors 1 m away

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12
Q

Indoor air temperature can be influenced by a number of factors, including the (7)

A
building physics and orientation, 
building location and structure, 
occupant density, 
ventilation strategy and 
mode of operation.
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13
Q

Feature T04 Optimization
Individual Thermal Control

3 parts

A

Part 1
Provide Personal Cooling Options
(user-adjustable thermostat, desk fan, cooling chair..-without influencing others)

Part 2
Provide Personal Heating Options
(thermostat/blankets/e-heaters+chair)

Part 3
Allow Flexible Dress Code

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14
Q

thermal comfort standard

A

ASHRAE 55

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15
Q

major secondary factors of thermal comfort

A

age, sex, health condition, personal thermal adaptation, and thermal history, including climatological origin,

temperament, preferences, social and cultural norms, and seasonal variation

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16
Q

T05 Radiant Thermal Comfort

Maximize volume of the space, reduce dust transmission, improve ventilation control and increase thermal comfort by incorporating radiant heat and cooling systems into the building design.
2 parts

A

Part 1 & 2
Implement Radiant Heating & cooling

min 50 % of occ. area- Radiant ceilings, walls or floors, radiant panels (min 50% of the wall/ceil.)

17
Q

T06 Thermal Comfort Monitoring

Monitor and effectively address unacceptable thermal comfort conditions and inform building managers and users of the thermal comfort parameters of their indoor environment.
3 parts

A

Part 1
Monitor Thermal Environment (1 point)

1: Thermal comfort monitors
(sensors dry-bulb temperature and relative humidity, 325 mq, 15 min, 1-1.7 m abv floor)

2: Reporting & maintenance
(annual report/ 3yrs sensor calibration)

3: Environmental measures display
( each 325 m2 display or sign )

18
Q

T07 Optimization Humidity Control

Limit the growth of pathogens, reduce off-gassing and maintain thermal comfort by providing the appropriate level of humidity.

part 1 - 3 options

A

Part 1
Manage Relative Humidity (1 point)

Option 1: Mechanical humidity control
maintaining relative humidity between 30% and 60% at all times

Option 2: Humidity modeling
(98% business hours)

Option 3: Long-term humidity data - Feature T06
Humidity data 30-60 / 98 BH last 6 months

19
Q

Warm and humid indoor spaces are also associated with

A

mold and fungal growth,
accumulation and growth of microbial pathogens, including bacteria and dust mites
which can lead to
odors and
cause respiratory irritation and allergies
in sensitive individuals.

20
Q

cold and dry spaces can lead

A

discomfort and irritation of the airways, skin, eyes, throat, and mucous membranes and facilitate the spread of the influenza virus.

21
Q

PT01 Thermal performance

two parts

A

Part 1
Provide Acceptable Thermal Environment

Part 2
Monitor Thermal Parameters