Radiant Heaters for ceiling mounting - PowerPoint PPT Presentation

About This Presentation
Title:

Radiant Heaters for ceiling mounting

Description:

ECOSUN Radiant heaters Radiant Heaters for ceiling mounting Radiant Cassettes ECOSUN Ranges Radiant panels are manufactured in two basic designs: High-temperature ... – PowerPoint PPT presentation

Number of Views:50
Avg rating:3.0/5.0
Slides: 39
Provided by: Christophe533
Category:

less

Transcript and Presenter's Notes

Title: Radiant Heaters for ceiling mounting


1
Radiant Heaters for ceiling mounting
ECOSUN Radiant heaters
2
Radiant Cassettes
Applications
Standard models of radiant heaters
Advantages
Theory
Specifications
Installation
3
ECOSUN Ranges
  • Radiant panels are manufactured in two basic
    designs
  • High-temperature panels ECOSUN S
  • - are equipped with flat radiation surface
    which guarantees radiation from up to 180 angle
    ( so called hemispheric radiation ). Temperature
    at the surface of radiating segment is approx.
    350C. This high temperature enables relatively
    high density of radiant flow. That is why these
    panels are designed for suspending in high places
    5-8 m.Plane surface emitter is designed to
    provide environment heating

2) Low-temperature panels ECOSUN - have
also flat radiating area. Contrary to high-level
panels is the surface of radiating area max.
110C. Density of radiant flow is lower.
Recommended height of panels placement is 2,5-3,8
m.
4
Radiant Cassettes Applications
  • The radiant cassette is designed to provide
    environment heatingronment heating
  • The radiant cassette is used for total, or
    additional heating in thermal insulated buildings
  • Multiple-purpose buildings
  • buildings which are not continuously occupied
  • with ceiling heights from 2,5 to 8,0 meters
  • Applications
  • public offices and administrative offices,
    company seats, schools
  • cultural facilities, show-rooms
  • medical arrangements
  • commercial and sales centres
  • manufacturing halls and warehousessuch as
    shops, industrial premises, gymnasiums,
    exhibition halls, etc.

5
Plane surface emitter
emitter
  • Hemispheric radiation (Radiant cassette)

6
Radiant Cassette
Environment comfort heating by ECOSUN
Convection discomfort heating system
7
Radiant Cassettes Advantages
  • the surface of the radiant panel radiates a flow
    whose spectrum lies mostly in the band of
    wavelengths greater than 5 micrometers, and is
    thus absorbed to a large degree by the human
    body people are thus heated in a manner similar
    to objects.
  • when the radiant flow heats objects up to a level
    of 20-22C, heat comfort can be achieved even
    with air temperatures of 18-19C, and this leads
    to energy savings of at least 18-24.
  • radiant panels make temperature distribution in a
    room vastly more vertically balanced only a -1
    to -2 degree difference between the floor and the
    ceiling (for convection heating, meanwhile, the
    difference is given as 1C per mere 30-50 cm of
    height).
  • there is less flow (whirling) of air in the
    heated space, so dust particles also whirl less,
    thus reducing the risk for a number of
    illnessesasthma, mucous membrane infection, etc.
  • a higher wall temperature means a lower
    possibility for surface condensation room
    humidity is not lowered.

8
Radiant Cassettes Advantages
  • glass is not transparent (we might say
    transthermant) when it comes to radiation with
    wavelengths over 3 and thus the radiant flow is
    not lost through windowpanes.
  • the panels do not need any maintenance
  • sounder environment with higher air moisture does
    not lead to mucosa membrane drainage and
    respiratory diseases
  • has positive effect on people affected with
    arthral diseases
  • full possibility for machines, furniture etc.
    placements
  • long service life
  • no emission, thrifty way of dealing with life
    environment
  • high thermal comfort
  • Infrared radiant heating is most suitable for
    wall dehumidification in room (for example caused
    by flood)

9
Cassettes solve the problem of cold spots and
isolated work areas.
Cassettes do not dry out the air ensuring a
pleasant working environment
10
Isolated work areas in factories, work stations,
warehouses etc.
Hospitals, Xray tables neo-natal units, burn
units, receptions, waiting rooms etc.
Ecosun High Temperature Cassettes resolve problem
of deicing planes in cold hangar areas at the
John Lennon Airport, Liverpool.
11
Radiant Cassettes Theory
12
ECOSUN radiant heat cassettes work in a similar
way to the radiant heating action of the sun
gently warming the surfaces of objects and people
in the room. This is a gentle, natural
comfortable heating system that offers may
advantages over conventional convection heating
systems.
13
2.5 m
2.0
1.5
1.0
0.5
0
º
º
º
º
20
22
24
26
14
Basis of radiant heat transmission
  • each object with certain temperature has some
    inner heat energy.
  • Heat energy is changing into electromagnetic
    oscillation which extends through space. If there
    is no heat supplied to the object, it cools down.
  • When electromagnetic oscillation hits other
    object, it is absorbed by its surface and changes
    into heat energy. If the heat is not taken away
    from the object, it heats up.
  • Electromagnetic oscillation is not bound to outer
    environment ( medium) it can proceed even in
    absolute vacuum
  • Most famous heat transmission via radiation is
    natural sun radiation heating the Earth

15
HEATING RADIATION
  • Transfer of heat energy from one body to another
    through the space which separates them .
  • (Heating of Air is only secondary!!!)
  • Using electromagnetic waves as transfer vector

16
Ideal
Ecosun
Convected heat
Convected heat
Ceiling level
Ecosun
Ideal
16º
19º
23º
18º
20º
22º
19º
20º
21º
20º
20º
20º
21º
21º
19º
22º
22º
18º
16º 18º 20º 22º 24º
Floor level
17
Radiant Cassettes Specifications
18
Radiant Cassettes ECOSUN S specifications
  • Proportion of energy radiated 70 !
  • Average surface temperatures up to 350C
  • 1, 2 or 3 heating units
  • Unitary power 900, 1200, 1800, 2400, 3000, 3600 W
  • Very high installation ( for whole area heating 5
    to 8 m, for zone heating 3,5 to 4,5 m).
  • Covering IPX4

19
ECOSUN S Radiant Cassettes technology
  • Thermal reflecting panel (rock wool insulation)
    covered with sheet metal varnished body
  • Heating element (aluminium segment with
    pressed-in heating rods)

High emissivity surfacing underside SILICATING
Technology
20
Radiant Cassettes ECOSUN specifications
  • Average surface temperatures
  • 90 -110C
  • Covering IP20, IP44, IP54, IP65
  • Unitary power 100W - 700W
  • high installation (2,7 to 3,8 m).

21
ECOSUN Radiant Cassettes technology
  • Thermal reflecting panel (rock wool insulation)
    covered with sheet steel metal body
  • Heating element (a heating foil or a heating
    cable)
  • THERMOQUARTZ TradeMark layer -the highest
    possible absorption of heat (of heat radiation)
    from the heating board

THERMOCRYSTAL TradeMark layer-the highest
possible efficiency of heat energy radiation
22
Radiant Cassettes Installations
23
How to design output, numbers and location of
radiant cassettes?
  • 1. Calculate heating loss of a specific area Q(W)
  • 2. Select heating mode in accordance with the
    character of a future object operation
  • Systematic heating mode with good level of
    heating comfort
  • heat passage coefficient to (U)
  • walls lt 0.5 W/m2K, floors at terrain lt 0.5
    W/m2K,
  • ceilings lt 0.35 W/m2K.
  • Higher values to (U) increase operating costs
    and decrease heating comfort !

24
How to design output, numbers and location of
radiant cassettes?
  • 3. Total input of all heaters set up to 20
    higher than calculated heating loss because of
    higher heating system dynamics
  • P 1,2 Q W
  • to check the input size for area unit,
    whereas applies P/Slt150W/m2
  • S ......... floor surface of an area W

25
How to design output, numbers and location of
radiant cassettes?
  • 4. Set minimal number of heating units n for
    creation of homogenous radiant field ngt S/H2
  • H .......... expected installation height m
  • The more heating units enable heating comfort
    but increases acquisition costs!!!
  • 5. Calculate average input of one heating unit
    and from output line of appropriate type select
    closest face-value
  • Specify number of heaters according to total
    input
  • Pn P/a Pjm
  • n P/Pjm

26
How to design output, numbers and location of
radiant cassettes?
  • 6. Propose scheme of even location of individual
    panels. It is necessary to respect frame
    distances and even distances of panels according
    to scheme figure

27
How to design output, numbers and location of
radiant cassettes?
  • 7. Determine installed height according to frame
    recommendation in table or through the use of
    nomogram
  • Usually mounting height
  • 300 W 2,7 to 3,2 m
  • 600 W 3,0 to 3,8 m
  • 700 W 3,0 to 3,8 m
  • 900 W 1200W 4,5 to 6,5 m
  • 1800 W 2400W 5,0 to 7,0 m
  • 3000 W 3600W 6,0 to 8,0 m

28
Minimum mounting height
  • Vertical asymmetry of radiated lt 12C.
  • If this temperature difference is
  • between 8 and 12C, the environment is qualified
    as slightly uncomfortable,
  • less than 8C, the environment is considered to
    be comfortable.

29
How to design output, numbers and location of
radiant cassettes?
  • In case of systematic heating mode with lower
    level of heating comfort is possible to provide
    zone heating by radiant cassettes.
  • ZONE HEATING is a mean of heating when only
    exposed, relatively small areas ( case of little
    heated halls ) are heated with radiant heat.

30
Application of zone heating
  • heat passage coefficient of an object cover k (U)
    gt 2W / m2K
  • Interrupted heating mode in objects heated for
    short-term stay of people (mainly churches,
    concert halls in historical objects etc. with
    high ceilings, social halls)
  • These large area objects are very expensive to
    heat in interrupted mode with conventional
    heating devices such as storage heaters,
    convectors and various types of "radiants". These
    high operation costs are caused by the fact that
    it is necessary to heat very huge air content
    from low temperatures up to demanded temperature
    (comfort). And this all in relatively short time
    period. Because radiation heats the air only
    secondarily from radiated objects, comfort
    environment can be reached in such areas much
    faster. Therefore radiant heating is for
    interrupted mode of heating much more effective.

31
Assembly
  • Low temperature radiant cassettes ECOSUN
  • Supply cords, 1 m long, lead out of the panels.
    The panels can be installed directly on ceilings
    using a fastening frame.
  • They can also be installed in coffer ceilings (in
    grids) or by hanging on ropes or chains.
  • The figure below show how the panel should be
    installed

32
Assembly
  • High temperature radiant cassettes ECOSUN S
  • These panels can be installed directly on
    ceilings using the attachment frame (which is
    part of their installation kits)
  • or by hanging them on ropes or chains.
  • The panels are connected during installation
    to a terminal box placed on the side of each
    panel. These terminal boxes each have two outlets
    to enable the interconnection of cables inside
    them.
  • CAUTION The SURROUNDING TEMPERATURE
    (temperature of surrounding air) near an ECOSUN
    radiant panel may not exceed 30C.

33
El. supply
  • The radiant heaters from 300 W to 1200 W are
    supplied in 230V
  • 1800 W and 2400 W are supplied in 230/400V 2N
  • 3000 W and 3600W are supplied in 230/400V 3N

34
Regulation by room
  • One thermostat only to control all radiant
    heaters in the same room
  • There must be a suitable control system such as
  • A moduling electronic ambient thermostat
  • A control system device limiting their operation
    according to the exterior temperature and
    modulating interior temperatures

35
The 5 conditions for a quality radiant heating
  • The installed power of heating is equal to the
    thermals losses of walls and air change by the
    premises increased by 20 .
  • In thermal insulated buildings
  • The heaters power in accordance with the mounting
    height.
  • Radiant heaters must be installed horizontally
  • A homogeneous layout of radiant heater

36
Effective ECOSUN S radiant cassettes applications
in practice
Prague Castle Gallery
Market hall
Production hall
37
Effective ECOSUN radiant cassettes applications
in practice
Newsagents
Restaurant
Office
38
Thank you for your time and interest
Contact us FENIX Trading s.r.o. Slezska
2 79001 Jesenik, Czech Rep. Tel/Fax 420 584 495
304/303 E-mail fenix_at_fenixgroup.cz Web
www.fenixgroup.cz
Write a Comment
User Comments (0)
About PowerShow.com