aquaheat radiant cooling - comfortpro systems

7
www.ComfortProSystems.com Radiant Heating and Snowmelting products AquaHeat AQUAHEAT Radiant Cooling A systems approach to integrating radiant cooling of ceilings, floors and walls

Upload: khangminh22

Post on 26-Feb-2023

0 views

Category:

Documents


0 download

TRANSCRIPT

AquaHeat

www.ComfortProSystems.com

Radiant Heating and Snowmelting products AquaHeat

AQUAHEAT Radiant Cooling

A systems approach to integrating radiant cooling of ceilings, floors and walls

2

AquaHeat

www.ComfortProSystems.com

Advantages Why we kept trying to build a better system

Superior Comfort Radiant heat is absorbed by objects

Aesthetics Architectural feature not HVAC component

Flexibility Lay-in, drywall, soffits, and floors

Durability Not easily bumped, scratched, or damaged

Silent No mechanical equipment in conditioned space

Heat Transfer Principles

ConductionMineral based excited molecules excite molecules nearby there-by transferring energy

Convection Air movement past warmer or cooler object adding or removing heat

Radiant Electromagnetic waves straight lines absorbed by colder objects that reradiate to other cold objects

Radiant Cooling Systems

Radiant Cooling Systems

3

AquaHeat

www.ComfortProSystems.com

Radiant Cooling Systems

Passive Chilled Beam

Similar to panel no air circulation. Falling cold air creates slight negative pressure above drawing in heated air.

Active beam utilizes external forced air and ventilation systems to remove sensible load.

Active Chilled Beam

Chilled Beam Terminology

*Energy transfer from one object to another by electromagnetic waves.*Sensible load removal only.*Latent load must be addressed through ventilation or dehumidification.*Can be any emissive surface- ceilings are best to take advantage of natural stratifi-cation.*Good for solar gain, machinery heat, data servers.*10 to 50 BTU per square foot removal

4

AquaHeat

www.ComfortProSystems.com

Radiant Cooling SystemsTraditional Ceiling Panel

In heating mode the radiant energy vectors travel in direction shown. In cooling mode radiant energy is absorbed by cooler panel..

Gold Propanel Sunfoam Propanel

Radiant Cooling Systems

Radiant floor systems typically require a separate system for cool-ing altogether. “With ceiling panels, there is no redundancy, In the wintertime we push warm water through the radiant panels and in the summer time, through those same tubes, we push chilled water.

Ceiling applications allow con-struction to progress on the floor. In typical radiant floors, there is an ongoing fear of puncturing the tubes during construction before the flooring material is laid.

The temperature of the liquid in the ceiling can be hotter or colder than on the floor, where extreme highs or lows can make the flooring uncomfortable to walk on.

“With radiant floor cooling, you can’t have those types of temperatures which are necessary in North America to be able to handle the cooling loads,

5

AquaHeat

www.ComfortProSystems.com

Radiant Cooling Systems

1/2" PEX 300' Loop 1 GPM 9' TDH5/8" PEX 300' Loop 1 GPM 6' TDH

Radiant cooling can only satisfy green and yellow conditions

Pump Model Maximum1/2” Loops Sq. Ft.

Capcity 10 Deg.T

30 BTU Sq, Ft.

Maximum 5/8”

LoopsSq. Ft.

Capcity 10 Deg.

T30 BTU Sq,

Ft.Armstrong 30/30gaAaaaa 5 750 22500 12 1800 54000

B & G NRF-22 8 1200 36000 14 2100 63000

Grundfos UP15-42 9 1350 40500 14 2100 63000

Grundfos UP15-58 9 1350 40500 14 2100 63000

Taco 007 4 600 18000 10 1500 45000

“Water flowing through a floor would need to run at temperatures between 46 and 55 degrees to handle our cooling loads in this climate."

Furniture and carpets don't obstruct radiant output on the ceiling like they do for floor installations.

6

AquaHeat

www.ComfortProSystems.com

Commercial Cooling Systems

Radiant Cooling Systems

Cooling panels must stay above dew point to avoid condensation 55-60 degrees.Sensible / Latent ratio 2 to 1 – 60 to 70 percent of cooling load can be removed with radiant, remaining with DX

Commercial Cooling Systems Radiant cooling systems operate by reducingthe surface and air temperature within a space,which is referred to as “sensible cooling.” “Latentcooling” occurs when the heat content of air isreduced through condensation of the air’s vaporon a cool surface. To avoid condensation onradiant cooled surfaces, latent cooling should beprovided by a supplemental forced-air cooling and/or dehumidification system. The use of radiantsurfaces for sensible cooling combined withdedicated outdoor air systems for latent coolingand ventilation has shown great promise for energysavings. In fact, an article in the ASHRAE Journalprojected more than 50% savings for a radiantcooled slab and dedicated outdoor air systemversus a standard constant air volume coolingsystem.173.6.1

7

AquaHeat

www.ComfortProSystems.com

ComfortPro Systems LLC751 N. Rohlwing Rd. Itasca, IL 60143Phone: 1-800-968-8905www.comfortprosystems.com Radiant Heating and Snowmelting products AquaHeat

AQHT radiantcooling2016