Method statement to measure noise level by eng. juma yousef juma saleh- getco
1. Method Statement to Measure
Noise Level of A/C-by Getco
لقياس الصحيحة الطريقة
التكييف من الصوت مستوى
2. Acoustic Comfort - الراحة منطقةالصوتية
Acoustic comfort
means having the
right level and
quality of noise to
use the space as
intended by
International
Standard.
الصوتية الراحة منطقة
المستوى تحقيق تعنى
ك فى للصوت الصحيحل
له المقدرة بالحدود حيز
العالمي المقاييس حسبة.
3. Importance - األهمية
People are more
productive & happy
when they’re not
distracted by noises
from outside or from
surrounding spaces and
occupants. Acoustic
comfort is especially
important for schools,
hospitals & office BLD.
Not to forget Bedrooms
األ فى تزيد الناس أنتاجيةماكن
عملهم يقطع ال عندما و الهادئة
أو الخارج من إزعاج أي
إزعاج أو الداخلى المحيط
المكان شاغلى من مفاحئ,و
شعورهم على ذلك ينعكس
بالسعادة.
فى جدا مهمة الصويتة الراحة
المدارس مثل الحساسة األماكن
و المكاتب و المستشفيات وال
النوم غرف نغفل أن يمكن.
4. Environmental Noise-البيئة من اإلزعاج
Step-0:
Review the
international Noise
level standard.
Such as:
الخطوة-0:
المستويات مراجعة
لمستوى العالمية
الصوت,مثل:
Two Levels Per Day:
• Night from: 10 p.m. to 7 a.m.
• Day from: 7 a.m. to 10 p.m.
اليوم فى مختلفين مستويين:
•من ليال10إلى مساءا7صباحا.
•من نهارا7إلى ضباحا10مساءا.
EPA: Environmental Protection Agency
22. Plenum Box in the back of Indoor Unit will
reduce sucking noise of FCU.
23. Possible to fix special “S”-Type Plenum
to avoid direct Indoor Unit Noise
( بشكل صندو تركيب و توريدSلتجميع )
.الداخلية الوحدة صوت عزل و الراجع الهواء
Supply & Fix plenum box in
(S) Shape to collect return air
and isolate indoor unit.
صوت بعازل الداخل من يبطن أن على
الكفاءة على خا
Will be covered with special
acoustic liner that help to
reduce noise level
32. Air Direction
Air Direction
Air Direction
من أفضل المواضع أيمصدرولماذا الصوت؟؟
Where to keep from noise source? Why?
33. Anther advantage of Controlling of Noise Level is to earn additional LEED Points (Leadership in Energy & Environmental Design)
Intent
To promote occupants’ comfort, well-being, and productivity by
improving indoor air quality.
34. Requirements
HVAC Background Noise
Achieve a maximum background noise level of 40 dBA
from heating, ventilating, and air-conditioning (HVAC)
systems in classrooms and other core learning spaces
.
Follow the recommended methodologies and best
practices for mechanical system noise control in ANSI
Standard S12.60–2010, Part 1, Annex A.1; the 2011
HVAC Applications ASHRAE Handbook, Chapter 48,
Noise and Vibration Control (with errata); AHRI
Standard 885–2008; or a local equivalent for projects
outside the U.S.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance
35. Requirements
Exterior Noise
For high-noise sites (peak-hour Leq above 60 dBA during school hours),
implement acoustic treatment and other measures to minimize noise
intrusion from exterior sources and control sound transmission between
classrooms and other core learning spaces. Projects at least one-half
mile from any significant noise source (e.g., aircraft overflights,
highways, trains, industry) are exempt.
Reverberation Time
Adhere to the following reverberation time requirements.
Classrooms and Core Learning Spaces < 20,000 Cubic Feet
Design classrooms and other core learning spaces to include sufficient
sound-absorptive finishes for compliance with the reverberation time
requirements specified in ANSI Standard S12.60–2010, Part 1, Acoustical
Performance Criteria, Design Requirements and Guidelines for Schools,
or a local equivalent for projects outside the U.S.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance (School)
36. Option 1
For each room, confirm that the total surface area of
acoustic wall panels, ceiling finishes, and other sound-
absorbent finishes equals or exceeds the total ceiling
area of the room (excluding lights, diffusers, and
grilles). Materials must have an NRC of 0.70 or higher
to be included in the calculation.
Option 2
Confirm through calculations described in ANSI
Standard S12.60-2010 that rooms are designed to
meet reverberation time requirements as specified in
that standard.
1EQ: Indoor Environmental Quality:
Prerequisite Minimum Acoustic Performance (School)
37. For Support Kindly contact: Eng. Juma Yousef
+962-7-9074-6811 (jumayjuma@gmail.com)
Green Earth Technology Co. Jordan -Getco– األرض تكنولوجيا شركةالخضراء-األردن-جيتكو-
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