From today until 20th April 2010, i will be studying Air-Conditioning (HVAC) system. Since the scope is very wide, I will only learn on the basic of the HVAC System.
Topics that i studied :
1) Definition
To stabilise the air temperature and humidity within an area. Typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles.
2) Information that needed before to get air conditioner size.
- Position of building / building orientation
- Building use
- Building shape
- Building material
- Number of people in room or space
- Light, equipment computer and other which produces heat
- Aeration, whether need continue disposal air from room
- Surrounding area
15 APRIL 2010
Continue study HVAC System
3) System selection factor
- Use freedom.
- Security feature : Bilik Kebal
- Water suitability supplied
- Noise
- Load limit in structure
- Limit use space
- Installation place suitability
- Khidmat lepas jualan firma
- Price
4) Information on air circulation
Important parts for tool in air conditioner circulation are :-
- Fan
- Supply ducts (sesalur bekalan)
- Supply outlets (air keluar bekalan)
- Space to be conditioned
- Return outlets (air keluar pembalikkan)
- Return ducts (sesalur pembalikkan)
- Filter
- Refrigerant loop (gelung penyejuk)
- Fresh air duct (sesalur udara bersih)
- Mixing box
- Damper (Fresh air / Return air / Fire)
16 APRIL 2010
Continue study HVAC System
5) How does a room air conditioner work
Room air conditioners function in much the same way as refrigerators do – heat is extracted from the space that is being cooled and is conveyed outside of that space.
BASIC COOLING CYCLE
19 APRIL 2010
Continue study HVAC System
6) Type according to air conditioning system
- Window Unit
- Split Unit
- Ducted Split
- Package Unit
7) Type according to category
- DX type
a) Air Cooled type
b) Water Cooled type
- Chilled Water type
8) Air-conditioning equipment
- Window unit
- Wall mounted
- Ceiling mounted
- Cassette type
- Floor mounted
- Multi split
- Indoor unit (evaporator)
- Outdoor unit (condensing)
- Floor standing
- Fan coil unit
- Air handling unit
- Water cooled package
20 APRIL 2010
At 9 a.m, 40 JKR(CKM) staffs and I went to pipe factory in Klang. The name of factory is ALPINE PIPE MANUFACTURING SDN BHD. This factory produce steel quality and owned by Hiap Teck Venture Berhad (HTVB). HTVB is one of the leading steel company in Malaysia. The objective of this factory visit is to know more on pipes offered by ALPINE PIPE.
Me and other staffs at factory.
HTVB has categorized their products into the following major applications :
1) Structural Hollow Section - for construction of buildings, theme parks, museums, stadiums, ports, airports, off-shore platforms, etc.
2) Furniture Tube - mainly for furniture manufacturers
3)Water & General Application - specially engineered for fire fighting applications as well as water and air transmissions
4) Oil & Gas Application - highest quality pipes for oil and gas transmissions cater for both onshore and offshore usage
5) Universal Beam & Columns - for building/ factory support
6) Scaffolding - for construction of buildings, bridges, ports, airports, etc, and for the usage in the oil & gas industries, shipyards and aircraft maintenance.
Pipe Mill Process Flow
Among HTVB Products
1) Manufacturer & Supplier of Steel Frame Scaffolding & Tubular Scaffolding
2) Steel Frame Scaffolding
3) Tubular Scaffolding
Later on the afternoon, i continue study on my HVAC System.
9) Calculation of split unit
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