48937
Description
Mind Map by alison_patey0437, updated more than 1 year ago
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Created by alison_patey0437
about 11 years ago
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M&E
- Heating
- Radiators
- key points
- simple and compact
- Occupants familiar with function
- low maintianance
- good temp control
- range of styles = flexible to layouts
- simple and compact
- limitations
- slow thermal response
- heat output is convective
- can lead to uneven
temperature gradient
in the space
- can lead to uneven
temperature gradient
in the space
- furniture must be positioned
sympathetically to avoiding
obstructing the heat output
- the combination of windows
that can be opened and
perimeter radiators can result
in excessive heat loss if the
windows are poor design
- slow thermal response
- Used in naturally ventilated building
- located around perimeter walls
- offset cold down drafts from
glazing and prevent condensation
forming on glass
- offset cold down drafts from
glazing and prevent condensation
forming on glass
- temperature control
achieved through
thermostatic radiator valves
(TRVs)
- individual
and local
control
- individual
and local
control
- two basic types
- pressed steel panel
- cast extruded type - normally alluminium
- pressed steel panel
- key points
- Convectors
- Key points
- quicker warm up times in comparison to radiators
- fan convectors provide high heat output for the unit size
- convection current by unit provides good air movement
- fan convectors provide greatly enhanced heat output and air movement
- the casing can reduce the risk of burning which can occur with radiators
- quicker warm up times in comparison to radiators
- Limitations
- Dust/dirt collects in the casing
which required periodic cleaning
- trench convectors tend to accumulate dirt an the
grille can become covered by furniture
- fan convectors incorporate many components and lack
the simplicity of radiators and natural convectors
- require a power supply
- Dust/dirt collects in the casing
which required periodic cleaning
- Natural convectors
- casing with top and bottom openings
- Enter text here
- casing with top and bottom openings
- Key points
- Radiant Heating
- Warm air unit
- boilers
- Radiators
- Ventilation
- Air-conditioning
- introduction to Air con systems
- Constant volume (CV)
- Variable air volume (VAV)
- Displacement ventilation
- fan coils
- chilled beams
- chilled ceilings
- Room-based heat pumps
- split systems
- Variable refrigerant flow systems (VRF)
- Chillers, dry coolers and cooling towers
- introduction to Air con systems
- Controls
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