PILOT STUDY: HELLENIC HOTEL

Transcription

1 PILOT STUDY: HELLENIC HOTEL Fig.1 South façade Fig.2 Northeast facade Location: Heraklion, Crete, Greece Year of construction: 1978 Environment: The building is a free standing, Orientation: The long axis of the ground floor is oriented beachfront complex, located in Ammoudara, a towards the NS axis. The rest of the building is oriented SEtourist resort on the outskirts of Heraklion, NW. Crete. The SW façade of the hotel faces a heavy traffic road. Open green surrounding areas. Nearby buildings are of lower height. There is a power plant in a distance of 2 km from the hotel. Short description: The main building (used for the pilot study) is a fivestorey building. The air ducts of the ventilation system were replaced in During the same renovation, extensive retrofitting of the plumbing system also took place. Construction: Concrete load bearing structure, cavity brick walls, 80cm concrete parapet along the perimeter on each floor, concrete flat roof covered with concrete tiles. The hotel operates from April October. Hotel s facilities: Restaurant Yes No Laundry Yes No Health centre (gym, sauna) Yes No Indoor swimming pool Yes No Conference rooms Yes No Garages Yes No Heating / Cooling / Ventilation: Garden area: Gross floor area: Heated floor area: 7030 Conditioned area: Number of rooms: 147 Number of beds: 283 Annual billed water consumption: m 3 /yr (2002) Heating and cooling is provided by a total of 12 heat pumps. Hot and chilled water is supplied to fan coil units in the guest rooms. The air conditioning system includes six AHUs that serve the public access areas (lobby, restaurant, bar). The sanitary hot water is produced by a centralised plant of solar collectors (total collectors surface: 226 m 2 ). It covers approximately 60% of the needs for hot water production. The rest is covered by a conventional hot water production plant using oil. Annual billed thermal energy consumption: 524 MWh/yr (2002) Actual value Average value Average value Actual value Annual water consumption (sanitary + laundry + restaurant + landscaping) in m 3 /room Annual billed electricity consumption: 806 MWh/yr (2002) Average value Actual value Annual consumption (sanitary hot water) in kwh/ of gross floor area Annual electrical consumption (lighting, cooling, electric devices) in kwh/ of gross floor area

2 INDOOR ENVIRONMENTAL QUALITY auditor s notes Outdoor sources of pollution Air inlets Tobacco smoke: Mold, moisture and bacteria problems Legionnela Air quality evaluation There is a power plant in 2 km distance and a heavy traffic road in front of the hotel. Air exhausts from the various activities (mainly the storage areas) of the hotel are located in a poor ventilated area near the air inlets of the AHU. A particular smell exists in the second conference room when the AHU is in operation (a smell of cleaning products). Tobacco smoking is permitted in approximately all the areas of the hotel, with the exception of specific areas in the restaurant where a specific policy is followed. A ventilation study has been performed in this area. No complaints occurred till today concerning smoking policy. They had the first requests for non smoking room this year. They have several different room categories and it could be a problem to have another room category (no smoking rooms). They had a moisture problem with external walls due to the fact that the hotel is located near the sea. The problem was solved immediately. There is no moisture problem at the moment. They never had a Legionnela incident Asbestos No materials containing asbestos have been used for insulating pipes or ducts. Building materials and furniture Although several renovations have been performed during the last year, there is no odour in the rooms or the reception areas. Odour problem due to new building materials exist only in one of the conference rooms due Problem Suggestions The outdoor air pollutants can deteriorate the indoor air quality. Due to the fact that the windows in most of the areas are open all the time the solution of using special air filters is not proposed since it will not improve the indoor air significantly. Transfer of air pollutants to the indoor air from nearby sources of air pollution. Relocation of the air intakes in order not to be influenced by nearby pollution sources Tobacco smoke emits a great number of compounds that can be harmful to health. However there were no complaints till now due to the fact that the hotel is well ventilated. The development of non smoking rooms in the future is proposed. No problem No problem Use maximum continuous air ventilation in the conference room in order to accelerate the emission of pollutants from the materials and to reduce their concentration in a shorter interval.

3 Use of cleaning products, hazardous products, and insecticides Other activities in the hotel Complaints from the guests to the carpet renovation The chemicals and cleaning products are selected based on their environmental character. There is no odour in the rooms or toilets due to the use of cleaning products. There is no problem with the ventilation system in various activities of the hotel (kitchen, underground garage, etc.). A ventilation problem exist in the storage areas. The only complaints reported concerning indoor environmental quality include: Bad smells from HVAC in a number of rooms. The problem was solved immediately after the complaints Noise from traffic They have scheduled to renovate all the windows using double glazing windows. No problem Performance of a ventilation study for the storage areas. Noise can be a significant factor of irritation for the hotel guests Consider a more often maintenance schedule during the summer period Consider the performance of a noise study in order to find complementary solutions that can meet the noise requirement with windows open (use of sound barriers in the street or use of trees). The equivalent sound pressure level in the hotel rooms should not exceed 35 dba during the day and 30 dba during the night

4 XENIOS Building Report Project: Pilot Study Facade Description Type Area [] U [W/ K] Orientation Window Single glazing, metal frame Solid External Wall User Defined Solid Wall to ground User Defined Window Single glazing, metal frame Solid External Wall User Defined Solid Wall to ground User Defined Window Single glazing, metal frame Solid External Wall User Defined Solid Wall to ground User Defined Window Double glazing, metal frame Solid External Wall User Defined Solid Wall to ground User Defined Floor to non heated zone User Defined Floor to ground User Defined Floor to open air User Defined Window Single glazing, metal frame Roof to open air User Defined N N N E E E S S S W W W Floor Floor Floor Roof Roof XENIOS Development of an Audit Tool for Hotel Buildings and the promotion of RUE and RES

5 XENIOS Dimension Report Project: Pilot Study Dimensional Coefficient User value Unit Air conditioned area 1640 Typical floor area 1350 Cooled area 4363 Common passages area 812 Conference room area 174 Exterior green area 7000 Exterior landscape area Facade area 3660 Cross floor area 8166 Health centers area 0 Heated area 4363 Indoor garage area 0 Indoor swimming pool area 0 Indoors restaurants area 443 Indoor water pool area 0 Kitchen area 328 Lobby and bars area 871 Number of basement floors 1 Number of beds 283 Number of escalators 0 Number of floors above ground 6 Number of heavy load elevators 0 Number of kitchens 1 Number of person elevators 3 Number of rooms 149 XENIOS Development of an Audit Tool for Hotel Buildings and the promotion of RUE and RES

6 XENIOS Dimension Report Project: Pilot Study Dimensional Coefficient User value Unit Number of staircases 2 Number of small load elevators 0 Outdoor water pool area 330 Rooms area 3853 Technical premises area 1218 XENIOS Development of an Audit Tool for Hotel Buildings and the promotion of RUE and RES