SOLAR WATER HEATING SYSTEMS FOR HOTELS

1
SOLAR WATER HEATING SYSTEMS FOR HOTELS
By François Pelletier, Contained Energy Bali
2
(No Transcript)
3
- Power / Energy from the sun - Glazed flat
plate collectors - Evacuated tube collectors
- Pictures of solar collectors - Factors for
successful projects - Bali sun radiation -
Configuration and installation -
Commercial / industrial applications -
Conclusion
TABLE OF CONTENT
4
POWER / ENERGY FROM THE SUN
Converted into energy 1J 1W/s, i.e. 1TJ
1TW/s 1012W/s 1.000.000.000.000W/s !
5
EVACUATED TUBE COLLECTORS
Higher cost No convection losses High
temperature Cold climates Installation can be
more complicated
6
GLAZED FLAT PLATE COLLECTORS
Moderate cost High temperature operation (up to
95C) Can operate at mains water pressure
7
PICTURES OF SOLAR COLLECTORS
Flat plate
Evacuated tube
8
FACTORS FOR SUCCESSFUL PROJECTS
Large demand for hot water to reduce impact of
fixed costs High energy costs (diesel, LPG,
electricity) No reliable conventional energy
supply Strong environmental interest by building
owner/operator Daytime hot water loads require
less storage Maintenance similar to any plumbing
system, but operator must be committed to timely
maintenance and repairs
9
BALI SUN RADIATION
10
CONFIGURATION AND INSTALLATION
Controller
Remote Monitoring option
11
SAVINGS ON CARBON EMISSIONS
Typically, in Bali, solar heating of 30 m3 of hot
water per day from ambient to 60C will result in
preventing the emission of approximately 260 tons
of CO2 per year (Source Retscreen4) For hotels,
it is a path to worldwide Green Globe
Certification and other Eco-Tourism labels
(solar energy harvested can be displayed in
hotel Lobby and Rooms, on their website)
12
COMMERCIAL / INDUSTRIAL APPLICATIONS

• Hotels, apartments and office buildings
• Health centers hospitals
• Restaurants
• Sport facilities, schools, shower facilities
• Aquaculture, other small industry
• And solar cooling, solar thermal power plant!

13
SAMPLE OF LARGE SCALE SOLAR THERMAL POWER PLANT
14
CONCLUSION

• Significant hot water demand, high energy costs,
  and strong commitment on part of owner/operator
  are important factors in success
• Based on data provided on its Thermal Energy
  Questionnaire and on site survey, for each hotel
  or building, Contained Energy determines
• The most suitable SWHS, heat pump and other
  equipment configuration
• The cost savings and return-on-investment
  generated by the proposed solution
• Contained Energy then offers
• To supply and install the system, including data
  logging device
• Split payments and rental schemes
• Training and after sales services
• With ROI of mostly less than a year, there is no
  more time and money to waste!