Following are main topics to covered in this article are
- PRINCIPLES OF THERMAL RADIATION
- HEAT TRANSFER BY PANEL SERVICES
- PANEL DESIGN FOR HVAC
- HEATING AND COOLING PANEL SYSTEM
- HYDRONIC METAL CIELING PANEL
- ELECTRICALLY HEATED PANEL SYSTEM
- AIR HEATED OR AIR COOLED PANEL
- HYBRID HVAC SYSTEM
- LOAD SHARING HVAC SYSTEM
- HYDRONIC PANEL SYSTEM
HVAC Panel Radiant Heating and Cooling System ASHRAE Standard
Panel heating and cooling systems use temperature managed indoor surfaces on the floor, walls, or ceiling; temperature is maintained by circulating water, air; or electrical current by means of a circuit embedded in or attached to the panel. A temperature-
controlled surface is known as a radiant panel if 50% or extra of the
design heat switch on the temperature-controlled surface takes
place by thermal radiation. Panel systems are characterized by controlled floor temperatures under 15OO.C. Panel systems could also be
combined both with a ‘central forced-air system of one-zone, constant-temperature, constant-volume design, or with dual-duct,
reheat,. multizone or variable-volume systems, decentralized convective systems, or in-space fan-coil units. These mixed systems are referred to as hybrid (load-sharing) HVAC systems.
This chapter covers temperature-controlled surfaces which are the primary supply of sensible heating and cooling within the conditioned space. For snow-melting and freeze-protection applications, see Chapter 50 of the 2003 ASHRAE Handbook-HVAC, Applications. Chapter 15 covers high-temperature panels over 150°C, which can be energized by gasoline, electrical energy, or high-temperature water.
ASHRAE EQUIP SI CH 6