M&E Flashcards
Can you name some elements within MEP?
- Sanitary Installations
- Services Equipment
- Disposal Installations
- Water Installations
- Heat Source
- Space Heating & Air Conditioning
- Ventilation Systems
- Electrical Installations
- Fuel Installations
- Lift & Conveyor Installations / Systems
- Fire & Lightning Protection
12 Communication, Security & Control Systems - Specialist Installations
- Builder’s Work in Connection with Services
What is a BMS?
A means of controlling centrally:
Lighting.
Heating, ventilation and air conditioning (HVAC).
Fire, smoke detection and alarms.
Motion detectors, CCTV, security and access control.
ICT systems.
Lifts.
How was your project heated?
Water tank heated by Low Temp Hot Water
Combined Heat Power
Ground / Air Source heat pump
Types of aircon system?
Cooling module in MVHR
Fan Coil Unit (2 pipe or 4 pipe)
Chilled Beams
How is your project powered? And how is it distributed throughout the building?
PV Panels
Generator
Energy centre which will be fed by a local substation feeding from the National Grid
Electricity will be distributed via a switchboard
What are the different ways of fire detection?
Fire alarms
Centralised panel
Break glass
Smoke detection
What are the different ways of fire suppression?
Sprinklers
Gas suppression
Mist system
Wet riser
What are the different ways of security?
CCTV
Alarms
Access panel
Magnetic lock (to door)
What are the different types of containment?
Cable tray
Cable basket
What is a dry / wet riser?
Wet risers are used to supply water within buildings for firefighting purposes
A Dry Riser is a normally empty pipe that can be externally connected to a pressurised water source by firefighters
What is the difference between an air source heat pump and ground source heat pump?
ASHP relies on air to provide heat, through a heat exchanger, refrigerant is heated
GSHP uses natural heat from the ground to provide heat, through the heat exchanger
What is a air source heat pump?
- Air drawn in from outside
- Air passes through heat exchanger
- Heat transferred to refrigerant from liquid to gas
- Passes through compressor heating temperature
- LTHW runs through ASHP which is heated by refrigerant
What is a ground source heat pump?
- Buried pipes beneath ground with anti freeze
- Absorbed heat transferred to refrigerant
- Heat transferred to refrigerant from liquid to gas
- Gas passes through compressor heater temperature
- LTHW runs through ASHP which is heated by refrigerant
How does your building have electric?
Connected to the mains grid
Power to a local substation
Power stepped down via a switchboard
Power provided to specific switchboards within units
How does your building have water supply?
It has been distributed by connecting to the TW supply or via a sprinkler tank
How can your building be ventilated?
Windows (natural)
MVHR (localised)
Air Handling Unit (centralised)
What is an Energy Performance Certificate?
Energy performance certificates (EPCs), set out the energy efficiency rating of buildings.
Buildings are rated from A to G on EPCs, with A representing a very efficient building and G a very inefficient building.
What are the pros and cons of a ASHP?
Pros Less carbon emissions Savings on gas bills BREEAM Scoring Heating & Cooling
Cons
Lower heat than boilers
More insulation generally needed
Can be noisy
What are pros and cons of a GSHP?
Pros
Less emissions
BREEAM
Little maintenance required
Cons
Groundworks
May not be suitable in close proximity to buildings
Can you name some sustainable construction methods in relation to MEP?
LED Lighting PV Panels & batteries retaining energy Presence detectors ASHP GSHP
Can you name some key differences with regards to MEP in Resi vs Commercial Commercial?
Resi MVHR Windows UF Heating Radiators Wall plugs
Commercial AHU MVHRs Chilled Beams FCU (4 pipe - hot and cold) Lineal lighting
What is a fan coil unit?
Circulates hot or cold water through a coil in order to condition a space.
The unit gets its hot or cold water from a central plant
Why were MVHR units used?
- provide fresh filtered air to units
- efficient method
What is compartmentalization of fire?
Sub-division of a building into smaller sections to: withstand and limit damage/growth from a fire situation by preventing the spread of smoke and fire
How can you improve compartmentalization of fire
Increased fire ratings to internal walls / doors
Ventilation
What are the main lighting systems used on your projects?
LED Lights
Ceiling Lights
Hanging lights
Luminaire lights
What type of lifts are you aware of?
Goods
Passenger
FF Lift
How is your project powered?
Temporary generator, substation to be relocated at a later phase
