Maison Notre Dame du Mont

  • by Sandra Aoun
  • /
  • 2015-06-30 13:33:47
  • /
  • International
  • /
  • 7851 / EN

Renovation

  • Building Type : Hotel, boarding house
  • Construction Year : 1991
  • Delivery year : 2015
  • Address 1 - street : 01 Fatka main street 1401 FATKA, BYBLOS, Libanon
  • Climate zone : [BSh] Subtropical Dry Semiarid (Steppe)

  • Net Floor Area : 4 300 m2
  • Construction/refurbishment cost : 159 999 €
  • Cost/m2 : 37.21 €/m2

Proposed by :

  • Primary energy need :
    258.69 kWhpe/m2.year
    (Calculation method : Primary energy needs )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

​​ Maison Notre Dame du Mont in Fatqais one of the reference hostels in the area.

Maison Notre Dame du Mont premises consists of a two main parts:

§ A four stories nursing home comprising 61 rooms with individualbathrooms

§ A four stories hotel comprising 120 rooms with individual bathrooms,1 central kitchen, 1 laundry, and 1 reception area with dedicated toilets.

This facility is a convent which can accommodate up to 181 residents. Thenursing home is inhabited by 61 people all year long. Whereas for the occupancyof the hotel, we assume that on average, the hotel is inhabited by 90 people onaverage all year long. Throughout the period of occupancy, the facility iscontinuously operational, since it is considered as a domestic living space.

A central domestic hot water system is installed for the entireproject. It is consisting of 4 boilers (used also for heating) located in atechnical room in Hotel’s basement and the following hot water storage tanks:

1. One hot water storage tank having 1500L of capacity serving NursingHome, with circulating pump, located in the same technical room.

2. A hot water storage tank having 1500L of capacity for Hotel first andsecond floors, with circulating pump, located in the same technical room.

3. A hot water storage tank having 750L of capacity for Kitchen andLaundry, with circulating pump, located in the same technical room.

4. A hot water storage tank having 1500L of capacity for Hotel third andfourth floors, with circulating pump, located in the a technical room atHotel’s roof.

See more details about this project

 http://www.saintefamille.org/

Data reliability

Self-declared

Stakeholders

    Company

    DAWTEC

    address: Dawtec, Lemec center, Furn El Chebbak, Baabda - LEBANON Tel/fax - LEBANON:+961-1-288688 Mobile - LEBANON:+961-70-288688 Tel - GERMANY:+49-15229046069 Email: dawtec@dawtec.com

    Consultancy design and contracting for Renewable Energy solutions

Contracting method

Maximum Guaranteed Price

https://www.construction21.org/data/sources/users/15194/management.docx

Owner approach of sustainability

Ste Famille Convent represented by Soeur Felix Khoury nowadays trying to implement green practices in most of their convents, schools, and elderly houses, first in the aim of conserving natural resources, and second in the plan of reduction of cost for power generation and increasing asset value and profit.
The whole project was studied and approved by LCEC Lebanese Center for Energy Conservation (is a national organization affiliated to the Lebanese Ministry of Energy and Water) and financed through NEEREA financing mechanism supported by “Bank De Liban”. Kindly find attached the complete study submitted before execution.

Architectural description

Maison Notre Dame du Mont premises consists of a two main parts:
 A four stories nursing home comprising 61 rooms with individual bathrooms
 A four stories hotel comprising 120 rooms with individual bathrooms, 1 central
kitchen, 1 laundry, and 1 reception area with dedicated toilets.
This facility is a convent which can accommodate up to 181 residents. The nursing home is
inhabited by 61 people all year long. Whereas for the occupancy of the hotel, we assume that
on average, the hotel is inhabited by 90 people on average all year long. Throughout the
period of occupancy, the facility is continuously operational, since it is considered as a
domestic living space.

If you had to do it again?

We execute the same system

Energy consumption

  • 259 kWhpe/m2.year
  • 250 kWhpe/m2.year
  • Primary energy needs

  • 259 kWhfe/m2.year
  • This project has studied the energy consumption for hot water only

    As previously noted, the yearly thermal energy required for domestic hot water usage of the facility is around 258,693.23 kWh. This energy is currently provided by a Diesel boiler system composed of 4 boilers heating 4 water tanks of total capacity 5,250 Liters. The boiler system is assumed to have constant Diesel consumption and constant energy production for thermal energy for water heating all around the year because of the regular occupancy of the facility.

    The proposed solar water heating system consists of 255 square meters of Solar Pergola area that are expected to generate around 256,019.09 kWh of thermal energy yearly.

    The energy coverage of the solar water heating system covers approximately 83% of the yearly energy demand for hot water consumption.

  • 258 693 kWhpe/m2.year

Envelope performance

  • 0 W.m-2.K-1

Real final energy consumption

    256 019

    256 019

    2 015

Systems

    • Solar thermal
    • Solar Thermal
    • Solar Thermal
  • 83 %

Product

    Solar Pergola


    The Pergola Solar System is an innovative product offering an architectural solution to a mechanical system without affecting its performance.
    This system transforms solar energy into thermal energy for use in various applications such as Pool Heating, Water Heating, Space Heating, Process Heat and Solar Air Conditioning while preserving an aesthetic image. The Pergola Solar System being the only solar system with absorbers installed at 0 degree of inclination and having a system structure that can be constructed from a wide variety of materials makes the Pergola Solar System a unique design for Solar Water Heaters.
    The diversity of materials and colors present an added value to the system, as the structure could be made from wood, aluminum, colored steel, stainless steel… to suit different architectural needs.
    The Pergola Solar System was patented in 2009 (Patent No. 8589 - Ministry of Economy and Trade – 2009). This keeps the Pergola Solar System away from the competition whirlpool.
    The Pergola Solar System is a pioneering product outweighing all standard type solar systems available in the market. Its uniqueness increases its commercial value.
    The Pergola solar system can be easily expanded or upgraded on demand

    The Pergola Solar System is a pioneering product outweighing all standard type solar systems available in the market. Its uniqueness increases its commercial value.

Construction and exploitation costs

  • 35 000 000
  • 50 000 000
  • 159 999
  • 1 000
  • 25 000 000
  • 24 000

Energy bill

  • 9 000

Building Environmental Quality

  • water management
  • energy efficiency
Maison Notre Dame Du Mont in Fatqa is inhabited by 151 people on average all year long. For domestic hot water consumption, a central hot water system is currently used, consisting of 5,250 Liters storage heated by 4 Diesel boilers, serving domestic hot water use for both the Nursing Home and the Hotel.

 This project is the integration of 255 Square Meters Open Type Vacuum Tubes Solar Pergola.

 
The Pergola Solar System is an innovative product offering an architectural solution to a mechanical system without affecting its performance.

This system transforms solar energy into thermal energy for use in various applications such as Pool Heating, Water Heating, Space Heating, Process Heat and Solar Air Conditioning while preserving an aesthetic image. The Pergola Solar System being the only solar system with absorbers installed at 0 degree of inclination and having a system structure that can be constructed from a wide variety of materials makes the Pergola Solar System a unique design for Solar Water Heaters.

The diversity of materials and colors present an added value to the system, as the structure could be made from wood, aluminum, colored steel, stainless steel… to suit different architectural needs.

The Pergola Solar System was patented in 2009 (Patent No. 8589 - Ministry of Economy and Trade – 2009). This keeps the Pergola Solar System away from the competition whirlpool.

The Pergola Solar System is a pioneering product outweighing all standard type solar systems available in the market. Its uniqueness increases its commercial value.

The Pergola solar system can be easily expanded or upgraded on demand.

This system was implemented in parallel with the existing boiler system and to be connected to new and existing storage tanks.

 The total cost  of the project is 159,999.00 USD.

 The expected yearly savings of the system are around 32,402.42 USD and the payback period is 5 years.

 The current yearly expenses on Diesel for thermal energy generation are approximately32,740.86 USD, equivalent to a yearly consumption of 36,378.74 Liters of Diesel. Hence, the current thermal energy required is 258,693.23 kWh.

 The installed solar water heating system is expected to generate yearly 256,019.09 kWhof thermal energy, hence covering 83% of the yearly energy demand for hot water consumption, and reducing CO2 emissions by 94,687.06 kg yearly.

The roof of the facility is suitable for such an installation and the construction can accommodate all required items for implementation.

 During its lifetime of 28 years, the system will cost the user 182,399.00 USD (including maintenance and consumables) and will generate 6,279,654.59kWh of thermal energy. The cost of thermal energy from the installed system is 0.03 USD/kWh.

 

Over the years, the system would have cost 182,399.00 USD and would have saved794,768.78 USD (taking into consideration the degradation factor). Hence, according to the current Diesel price, the system would benefit the user with 612,369.18USD during its lifetime.

Presentation of the Installed Project

 The installed system for installation is 255 Square Meters Open Type Vacuum Tubes Solar Pergola that is to be implemented in parallel with existing boilers and connected to both existing and new hot water storage tanks.

 Our objective was to separate the two main parts of the project (Hotel and Nursing) by the mean of hot water production and to reduce fuel consumption by introducing solar energy.

Existing Status: 4 boilers around 230 KW are serving both nursing and hotel facility with common heating supply system.

Modification on Existing system: additional boiler with a capacity of 400 Kw should be installed, and one the exiting boilers shall be connected to the newly installed boiler and separated from the exiting 3 other boilers. This new configuration shall allow independent heating production for nursing home from the hotel.

Concerning Nursing Home, separate boilers shall be installed in the technical room as discussed above, and a common solar system made up of 255 square meters were installed on roof. These panels are currently heating a new hot water storage tank of 1500L capacity in order to preheat the cold water entering the main solar and boiler heated hot water storage tank of 1500L capacity also.

The existing boilers shall be dedicated to the hotel and the same common solar system was installed on roof. These panels are currently heating an existing hot water storage tank of 1500L capacity in basement technical room in order to preheat the cold water entering the double coil new hot water storage tank of 1500L capacity serving Hotel’s first and second floors. As for the kitchen and laundry, a new double coil hot water storage tank of 1000L capacity was installed. These solar panels are heating

 also the existing hot water storage tank of 1500L capacity in hotel’s roof technical room in order to preheat the cold water entering a new added double coil hot water storage tank of 1500L serving Hotels third and fourth floors.

 During sunny periods of year, the installed system is expected to cover all the hot water consumption of the facility, hence skipping the use of the boilers for water heating during this season (April to September). In mid-seasons between summer and winter, the system is expected to cover around 50% of the hot water consumption, hence reducing considerably the current fuel consumption for heating water in these seasons. During winter, the system is expected to cover around 40% of the hot water consumption, therefore, a reduction on the fuel expenses will also come about in this season.

 This system was implemented to make use of natural resources to reduce fuel consumption for water heating. Moreover, energy meters were installed in order to measure the energy ( in kWh ) and the flow ( in Liters per Second ) of the hot water in order to keep track of the hot water consumption. Data will then be available for further study whenever more actions are needed to analyze the energy consumption for domestic hot water provision.

 The main components of this system are the following:

  255 m² Open Type Vacuum Tubes Solar Pergola

  4 Differential Temperature Controllers

  2 sets of Circulating Pumps

  1 Open Type Expansion Tank

  4 Three-Way Valve

  Make-Up Water System

  7 Energy Meters

  4 Flow Meters (water meters and fuel meters)

  4 New Hot Water Storage Tanks

  Galvanized Steel Pipes

  UPS Battery System

  Boiler 400Kw

The system was implemented according to highest standards of quality and safety.

A detailed summary of the proposed project is provided in this section on the table here below:

 

SWH System Supplier

DAWTEC

Gross Area Of Solar Collectors

255 m²

Installed Cost Of SWH System

159,999.00 $

Estimated Hot Water Consumption On Site

9,050 Liters/day

Estimated Annual Energy Savings

256,019.09 kWh/y

Estimated Annual Cost Savings

32,402.42 $

Payback Period

5 years

Total Avoided CO2/y Due To SWH

94,687.06 kg

System Working Days Per Year

365 days

Storage Tank Size

10,750 Liters

Estimated Delivery Temperature

60°C

 

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