INTEGRA FOR HOTELS CASE STUDY
AQUALUX HOTEL SPA, SUITE & TERME
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BARDOLINO, GARDA LAKE
AQUALUX HOTEL SPA, SUITE & TERME
The Building
Luxury 4 stars superior hotel conceived according to the ClimateHotel quality seal for sustainable hotels and tourism infrastructure, Completed in autumn 2011
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Performance data Total Cooling Capacity Total Heating Capacity Installed units
Owner: Viola Family Owner: Viola Family Architect: Rama Architettura HVAC Designer: Ingenieurbüro Michele Carlini Built il volume l Built surface Rooms Spa Wellness Conference Centre Taverna Indoor swimming pools Outdoor swimming pools Restaurants Bars Halls
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1470 kW 1027 kW 2 x ERACS2‐WQ 1902,1 x TECS2‐W LC 0511 2 x back‐up Boilers 2 x Air Handling Units 45.000 m3 19.000 m2 135 1100 m2 1300 m2 1300 m 350 m2 4 – 900 m2 4 – 900 m2 850 m2 350 m2 400 m2
THE ClimateHotel Certification Programme
A new quality seal for sustainable hotels and tourism infrastructure.
Launched in Bozen in 2009 to answer to the increasing request for sustainability, health and well being not only at home but also during leisure time The h ClimateHotel l l quality l seall certifies f to investors, tenants, guests and local community that the building is:
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Energy‐conscious Comfortable Environmentally friendly Health‐promoting Economic Free of Construction Damage More valuable and profitable
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FOCUS ON
M&E and HVAC M&E and HVAC design aimed at combining EFFICIENCY, SUSTAINABILITY, COMFORT, through a 3‐step approach
Energy Reduction Energy Reduction Reduced Heating Need
Reduced Cooling Need
Reduced Electrical Consumption
Through extensive insulation of the building ventilation with advanced building, ventilation energy recovery systems, low consumption systems for swimming pools night heating.
Thermal lag (materials with high thermal mass) and low thermal mass) and low thermal transmittance. Passive solar design.
Variable flow and inverter driven devices for units and pumps.
Extensive Use of Renewables Ground water as main source for the 2 Integra high efficiency water cooled multiuse units for simultaneous heating and and cooling.
140m2 thermal solar to produce 40% of total sanitary hot water supply. Overdimensioned exchangers to optimse efficiency with low temperature heating and high temperature cooling.
High Efficiency g y HVAC Heating, cooling and sanitary hot water production
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based on Climaveneta water source multiuse units for simultaneous heating and cooling with one single unit. The system is complete by two back‐up boilers for heating and one back‐ up Climaveneta p TECS chiller for cooling. g
FOCUS ON
High efficiency hvac Distribution and Production Systems optimised for High Efficiency
DISTRIBUTION SYSTEMS Low temperature heating & high temperature cooling for highest efficiency comfort based comfort based on advanced innovative solutions dedicated to each area.
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PRODUCTION SYSTEMS Whole Wh l structure served d by b a central hydronic system based on 2 Integra heat pumps. Boilers and TECS units and TECS units are are conceived only for back‐up.
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BUILDING MANAGEMENT Advanced BMS for integration and optimised g all the management of systems installed: HVAC, lighting, electrical, fire in each area (rooms, restaurant, bar, swimming pool).
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High efficiency hvac Distribution systems All distributing systems are designed to use low temperature water (about 45°C) and optimally insulated
Low temperature heating Low temperature heating & high temperature cooling for highest efficiency comfort based on following solutions
All fluid distribution systems are inverter driven, thus modulating flow according driven, thus flow according to real requirements and reducing significantly energy consumption.
Rooms Restaurant Bar Conference Centre Kitchen Swimming pools Sauna
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Radiant ceilings + 1 Cassette Fan coil Radiant floor + Air handling system with 90% energy recovery Radiant floor + Fancoils + Air handling system with 90% energy recovery Radiant floor with air handling units for primary air Advanced air treatment with 75% heat recovery Radiant floor and walls + dedicated air handling units with advanced heat recovery Radiant floor
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High efficiency hvac Production Systems Production systems details:
The whole hotel is served by a hydronic system based on 2 Integra water source heat pumps.
Their efficiency allows to reduce ground water consumption, with reduced environmental impact and further energy saving due to reduced pumping flows.
The advanced concept of Integra units allows them to produce heating and cooling, also simultaneously, with one single unit.
The system is based on variable flow pumps, pumps adapting to the real thermal load of the building, further reducing this major energy consumption factor.
In case of simultaneous request for heating and cooling, the lower request is performed for free.
Boilers B il and d TECS units it conceived only for back‐up.
are
This results in increased energy EER) with efficiency (COP and EER), relevant synergies in case of simultaneous operation.
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Total cooling capacity: Total heating capacity: Installed units:
TER= 6.78
1470 kW 1027 kW 2x ERACS2‐WQ 1902, 1x TECS2‐W LC 0511 2 x back‐up Boilers
TER= 6.85
TER= 7.10
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High efficiency hvac Building management The hotel is equipped with an advanced BMS, managing g g all the systems y installed: HVAC, lighting, electrical, fire. Each area (rooms, restaurant, bar, swimming pool) is provided with dedicated circuits for temperature management, according to the ambient conditions and outdoor temperatures. temperatures
Regulation of systems in each rooms privileges radian ceiling ‐ more efficient and silent, and uses f coilil only fan l att peakk loads. l d Additional energy savings through several innovative solutions in many aspects of the systems design and installation (energy recovery for swimming pools water etc.)
Independent control for each area Room Climate control optimised for comfort and efficiency: several temperature management profiles (guest in, guest out in the hotel, guest out not in the hotel, hotel cleaning, cleaning free room…)
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FOCUS ON HIGH EFFICIENCY HVAC
Energy gy Scheme 1
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FOCUS ON HIGH EFFICIENCY HVAC
Energy gy Scheme 2
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FOCUS ON HIGH EFFICIENCY HVAC
Sustainability y Analysis y Comparative analysis of three different solutions
CO2 Emissions The INTEGRA base HVAC system is featured by 359 ton/a CO2 emissions, thus ensuring:
‐ 40% % CO2 EMISSIONS compared with traditional solution based on boilers and chillers
‐ 23% CO2 EMISSIONS compared with traditional solution based on boilers on boilers and heat and heat pumps. pumps
Boiler + Chiller
Boiler + Integra unit
Boiler + Heat pump
Ground Water C Consumption ti
Comparative analysis of two different solutions
‐ 25%
The INTEGRA base HVAC system is GROUND WATER featured by 187.500 m 187 500 m3 yearly water water CONSUMPTION consumption, thus ensuring: compared with a traditional solution based on boilers and traditional heat pumps. Boiler + Heat pump
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Boiler + Integra unit
FOCUS ON HIGH EFFICIENCY HVAC
Energy gy Reduction and Payback y Analysis y Energy Consumption of a standard Hotel The AQUALUX systems ensures an yearly:
13% 17%
47%
‐ 56% ENERGY
23%
CONSUMPTION
Swimming Pools
Heating
DHW
Cooling
Energy Consumption of ClimaHotel 6%
6%
11% 21%
compared with a traditional system based on boiler and chillers
On the basis of a quantitative analysis and information about yearly savings , the results show: the results
The AQUALUX Hotel is featured by 210.000€ yearly average energy costs.
LESS THAN YEARS PAYBACK of the additional initial investment
This results in:
57%
270.000€
SAVINGS PER YEAR
compared with a traditional system based on boiler and chillers g Savings
DHW
Swimming Pools
Heating
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Coolingg
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2
Considering only real savings, before incentives for green solutions
For more information on the Project:
For further Information about the product: www.youtube.com/user/climavenetaweb www.climaveneta.com/GLOBAL/Products/43/integra/ Link www.climaveneta.com/GLOBAL/download/brochure/index.asp
For further Information about the Aqualux Hotel: www.aqualuxhotel.com/ing/ Architect: Rama Architettura HVAC Designer : ing. Michele Carlini ‐ Bolzano
Copyright and Confidentiality Notice COPYRIGHT© 2012 CLIMAVENTA SPA. All rights reserved. No part of this document may be reproduced in any form, including video recording, photocopying, downloading, broadcasting or transmission electronically, without prior written consent of CLIMAVENETA SPA. Information contained in this material is confidential and proprietary to CLIMAVENETA SPA and its affiliates and may not be modified modified, copied copied, published published, disclosed disclosed, distributed distributed, displayed or exhibited exhibited, in either electronic or printed formats without written authorization of CLIMAVENETA SPA.
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