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I vantaggi del controsoffitto radiante: economia di cantiere, confort, efficienza, estetica Roberto Messana Amministatore Delegato

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Quali erano i principali ostacoli L’industrializzazione del prodotto e del processo installativo Superare il gap con le tecnologie tradizionali che vantano un secolo di industrializzazione alle spalle

Il calcolo e il confort (c’è temperatura e temperatura) Trad = Tbs, errore storico – sovradimensionamento del carico termico del 30%-50% in quanto con l’aria condizionata il vero punto di progetto non è 26° con 50% …ma… 22° con 40% (salvo portare la velocità dell’aria sul corpo a 50 cm/s!)

I luoghi comuni Il caldo va su e il freddo va giù – il radiante non ce la fa – il radiante costa

Le competenze Sono solo nelle aziende, pochissimo nei professionisti: necessità di formazione


Quali sono i principali vantaggi L’efficienza elettrochimica del corpo e della mente: maggiore produttività e qualità della vita (body and mind efficiency) L’efficienza termica dell’edificio-impianto: minor consumo di energia primaria sia fossile che rinnovabile L’estetica: assenza di presenza e totale integrabilità architettonica L’economia: ottimizzazione del processo edilizio con la tecnologia a secco


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ray|magic

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Clack! e il lavoro è fatto

1

3

2

4 ray | magic

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La sottomodularitĂ : un taglio


Montaggio veloce e standardizzato


FacilitĂ di passaggio

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Tutto è collegato

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L’abito è completo

Prima della stuccatura

Dopo la stuccatura

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raymagic beams

Ottimizzato per installazione fra travi di legno


raymagic beams

46 mm


CONFRONTO COEFFICIENTI POTENZA ELETTRICA IMPEGNATA Posta =1 la potenza elettrica impegnata di un sistema tradizionale a tutt’aria TIPO

AIR CONDITIONING

AIR|RAY CONDITIONING

Parametri Potenze elettriche

Temp. aria esterna

32°C

32°C

U.R. esterna

50%

50%

Temp. aria interna

23°C

25°C

Temp. operante

25,5

24,5

Temp. media radiante

28°C

24°C

U.R. aria interna

45%

55%

Prod. Acqua refrig. 7-12 (COP 2,5)

0,812

-

Prod. Acqua refrig. 12-15 (COP 4)

-

0,420

Ventilatori gruppo frigorifero

0,042

0,045

Pompa gruppo frigorifero

0,02

0,02

Pompa circuito secondario

0,027

0,027

Ventilatori UTA rinnovo aria

0,034

-

Ventilatori fan-coils

0,062

-

-

0,088

1,00

0,60

Unità deumidificazione/rinnovo aria Potenza elettrica totale assorbita

RISPARMIO %

-40,0%

Intensità termica equivalente.

Tipo di confort diverso


In natura caldo e freddo vengono dall’alto

c

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c


125 W/m2 IN FREDDO!

VERSIONE GRAFITE

RAYMAGIC PELLE IN GESSO RIVESTITO ANIMA DI METALLO


CONFRONTO COSTI IN UN APP.TO DA 100 m2 CALPESTABILI Impianto produzione Condizionamento Regolazione Assistenza Idraulico Assietenza Edile Controsoffitto Intonaco soffitto (gesso) Massetti

Totale Vantaggi

Svantaggi

Radiante a soffitto - SECCO Radiante a pavimento - UMIDO € 7.500,00 € 7.500,00 deumidificazione € 1.500,00 deumidificazione € 3.000,00 supervisione € 2.000,00 supervisione € 2.000,00 € 500,00 € 0,00 € 0,00 € 2.000,00 radiante € 6.000,00 € 0,00 € 0,00 € 1.700,00 € 0,00 radiante € 5.300,00

€ 17.500,00 Bassa temperatura impianto Bassissimi consumi Climatizzazione integrata Spazi liberi NO movimento aria invernale, trascurabile in estate NO movimento polvere Accensione immediata Facilità manutenzione Massimo isolamento acustico interpiano NO ponti termici CONFORT TERMICO IDEALE

€ 21.500,00

Tradizionale a radiatori - UMIDO € 7.500,00 imp. a split € 4.000,00 € 600,00 € 0,00 € 4.000,00 (!) € 0,00 € 1.700,00 € 2.350,00

€ 20.150,00

Bassa temperatura impianto Bassi consumi Spazi liberi Facilità manutenzione Medio isolamento acustico interpiano Confort termico molto buono

Medio isolamento acustico

Movimento aria invernale Movimento polvere invernale Limiti sulla scelta pavimenti NO tappeti Inerzia termica (accensione lenta) Manutenzione molto costosa Rischi di condensa sotto letti,mobili in genere

Alta temperatura impianto Limiti arredo Muove l'aria Rumore Alti consumi e potenze impegnate Muove la plovere Manutenzione costosa NO Confort, solo caldo e freddo


ray|magic raddoppia la produttivitĂ del cantiere CARTONGESSISTA

IDRAULICO

Struttura metallica, pannelli, mezzelune, carta/rete, stuccatura, siliconatura perimetrale

Adduzioni, raccordi, collettori, collaudo

______________________________

______________________________

Civile

Civile

30-40 m2/g

50 m2/g

installati a squadra (2 persone) ______________________________

installati a squadra (2 persone) _______________________________

Terziario

Terziario

35-45 m2/g

60 m2/g

installati a squadra (2 persone)

installati a squadra (2 persone)


Lo scambio radiante dipende dalla temperatura delle SUPERFICI Nella climatizzazione ad aria, in estate, la temperatura delle superfici è di 4°÷6° > temperatura dell’aria

..allora Tradiante

Se Taria = 26° = 30°÷32° e non 26°!

Toperante = 28°÷29° …e fa caldo!


…per cui: Bisogna deumidificare di più: UR 40-45%

Bisogna raffreddare l’aria di più: 22-24°C Bisogna muovere l’aria di più: 40-50 cm/s

… ma questo non è fare confort! È solo fare freddo


SERVICE PACK • • • • • • •

Preventivazione Consulenza progettuale Manuali on-line Strumenti di calcolo e disegno Assistenza all’installazione Avviamento Teleassistenza post-vendita

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Singapore. labour productivity in call centres - a case study", Energy and Buildings, 34,759-764. Wargocki P., Wyon D.P., Baik Y.K., Clausen G. and Fanger P.O., 1999. "Perceived air quality, Sick December 2003. Vol. 3:361-366. Niemela R., Seppänen 0., Reijula K., 2004. "Prevalence of SBS-symptoms as indicator of health and Building Syndrome (SBS) symptoms and productivity in an office with two different pollution loads", FM Fakta kontor, 2004, (in Swedish), “Services and key values for Facility Management”, FM productivity in office buildings". Submitted to American Journal of Industrial Medicine. Indoor Ail; 9, pp. 165-179. KKonsulterna, Gothenburg. Nunes F., Menzies R., T amblyn R.M., Boehm, E. and Letz R., 1993. "T he effect of varying level of Wargocki P., Wyon D.P., Sundell J., Clausen G. and Fanger P.O., 2000a. "The effects of outdoor air Grether W.F., Harris C.S., Mohr G.C., Nixon C.W., Ohlbaum M., Sommer H.C., T haler V.H. andoutdoor air supply on neurobehavioural performance function during a study of sick building syndrome" supply rate in an office on perceived air quality, Sick Building Syndrome (SBS) symptoms and Veghte J.H., 1971. “ Effects of combined heat noise and vibration stress on human performance and (SBS). In: Proceedings of Indoor Air '93, 6 th internationale Conference on Indoor Air Quality and productivity", Indoor Air, 10,222-236. physiological functions”, Aerospace Medicine, 42, 1092-1097. Climate, Helsinki, Finland, Helsinki University of T ecnology, Vol. 1, 53-58. Wargocki P., Wyon D.P. and Fanger P.O., 2000. "Productivity is affected by the air quality in offices", Grether W.F., Harris C.S., Ohlbaum M., Sampson P.A. and Guignard J.C., 1972. “Further study af Oseland N. and Willis S., 2000. "Property Performance and Productivity", 157-163 in ",Facility In: Proceedings of Healthy Buildings 2000, Espoo, Vol. 1, pp. 635-640. combined heat noise and vibration stress”, Aerospace Medicine, 43, 641-645. Management: Risks and Opportunities" ed. Nut and McLennan (Blackwell Science). Wargocki P., Wyon D.P. and Fanger P.O., 2000c. "Pollution source control and ventilation improve Hanssen S.O., 1997. “ Economical consequences of poor indoor air quality and its relation to the total Persily A. and Gorfain J., 2004. "Analysis of ventilation data from the U.S. Environmental Protection health, comfort and productivity", In: Proceeding of Cold Climate HVAC 2000, Sapporo, pp. 445-450. building opration cost”. Proc. EuroFM/IFMA Conference & Exhibition, T orino, Italy, pp. 1-21, Agency building assessment survey and evaluation (BASE) study", National Institute q/Stalldards and Wargocki P., Lagercrantz L., Witterseh T ., Sundell 1., Wyon D.P. and Fanger P.O., 2002a. International Facility Management Association. Technology, Report NIST IR 7145. "Subjective Perceptions, Symptom Intensity and Performance: a Comparison of T wo Independent Hanssen S.O., 2000: “ Economics vs. Indoor Cliamte – A basis for deciding appropriate measures and Poulton E.C. and Edwards R.S., 1974. "Interaction and range effects in experiments on pairs of stresses: Studies, both Changing Similarly the Pollution Load in an Office", Indoor Air, 12, pp. 74-80. rational dicision models in building administration”, Appendix 2 in Bakke J.V. (ed): “T he Economics of mild heat and low-frequency noise", Journal of Experimental Psychology, 102(4),621-628. Wargocki P., Sundell 1., Bischof W., Brundrett G., Fanger P.O., Gyntelberg E, Hanssen S.O., Harrison Indoor Climate: Providing Decision Support for Intervention”, Workshop Report, Research Council of Preller L., Zweers T , Brunekreef B. and Bolej J.S.M., 1990. "Sick leave due to workrelated health P., Pickering A., Seppänen O. and Wouters P., 2002b. "Ventilation and Health in Nonindustrial Indoor Norway, Medicine and Health Division, P.O.Box 2700 St. Hanshaugen, Oslo, November 2000, ISBN complaints among office workers in the Netherland", Proceedings of Indoor Air 1990, T oronto, Vol. I, Environments. Report from a European Multidisciplinary Scientific Consensus Meeting", Indoor Air;


ESEMPIO 2: fan-coil + a.p. > air|ray magic

• • • • • • •

UFFICIO 1000 m2

Risparmio energia: 4.000÷5.000€ (80 €/ps)

50 persone Costo personale 2.000.000 €/anno Costo impianto standard 220.000 €

Δ investimento = 20.000 € Aumento produttività 10% = 200.000 € (4000 €/ps) Tempo ritorno ≈ 1 mese considerando solo il costo del personale


L’IMPATTO VISIVO


I vantaggi dell’impiantistica a soffitto

www.messana.it


Il controsoffitto radiante come plenum di aspirazione

LA CASA RESPIRA SENZA VEDERE E SENTIRE NIENTE


ELEMENTI

DEL SISTEMA DI CLIMATIZZATIONE AIR|RAY

PANNELLI RADIANTI

REGOLAZIONE

UNITA’ TRATTAMENTO QUALITA’ ARIA

AYRO


Luogo: Jesolo, Italia Promotore: Cogetrev Progetto: 2004-2007 Fine lavori: 2011 Sup. coperta: 3.660 mq

Volume: 55.800 mc Sup. verde: 17.000 mq Progettisti: Gonรงalo Byrne Arquitectos, Pedro Sousa TMA

Progettisti Paesaggisti: PROAP, Joao Ferreira Nunes, Carlos Ribas e Ana Marques Direzione lavori: d-recta s.r.l. Andrea Menegotto, Sandro Burigana e Martina Murador Progetto Strutture: Pool Engineering Progettazione Impiantistica: Sinthesi Costruttore: Setten Genesio


IL CANTIERE DI MERVILLE A INTERVENTO CONCLUSO


IL CANTIERE DI MERVILLE A LAVORI FINITI - COMMERCIALE


il radiante non teme l’altezza: 12 m !


…alcune riflessioni SAI QUAL È L’ENERGIA PIÙ PREGIATA?

LA TUA …il corpo ha una sua intelligenza, non ucciderla, non distruggerla, altrimenti distruggerai la tua intelligenza… OSHO – Maestro ZEN


RADIANTI RINGRAZIAMENTI

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I vantaggi del controsoffitto radiante: economia di cantiere, comfort, efficienza, estetica  

Relazione del dott. Messana