Change search
ReferencesLink to record
Permanent link

Direct link
ENERGY SAVING METHODS IN HOT WATER SUPPLY FOR HOSPITALITY INDUSTRY
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Hotel Industry in Sri Lanka is becoming a vital sector in the economic development in the after the cessation of ethnic conflict that existed in almost 30 years. This has resulted in high demand for energy for enhanced activities in the hotel industry. The prime objective of the hospitality industry is to provide maximum comfort and facilities to its customers. Hence, Hotels utilize more energy to satisfy its visitors which will benefit the hotel as well as the income generated through foreign exchange to the country.

Electrical energy is used in this industry for lighting, air conditioning (cooling), water purification, hot water and steam for washing, cleaning and cooking purposes etc. In Sri Lanka, electricity is generated mainly from fossil fuels. Furnace oil is used in boilers for heating of water and supply of steam for laundry, kitchen and washing for guest rooms.

If thermal power generation with the use of fossil fuels is to be dominated in meeting energy demand, it will be a heavy burden to the country since Sri Lanka being a developing country lacks much needed foreign exchange. Burning of Fossil fuel will also affect the environment by releasing green house gases to the atmosphere as well. Therefore, it has to explore alternative sources of energy in order to meet the demand for energy in the hotel sector as much as possible. Further, sustainable use of energy is very vital for sustained development of the country at large.

In this project, a comprehensive study was carried to identify the opportunities to minimize the energy utilized in hospitality institutes. It has been identified that around 22% of the total energy consumption in a hotel is for hot water generation, which is higher than energy used for cooling and lighting. Hence the amount of energy utilized for hot water production in a selected beach hotel was evaluated and alternative source of energy such as solar hot water system was studied, which could be utilized in order to minimize energy consumption though burning fossil fuel. A comprehensive study in designing the total solution in solar hot water system was undertaken with the available data with the selected hotel. A simulation was carried out to test the validity of solution with software packages Polysun , Kolektor 2.2 , SAM2010 and RETScrean.

The proposed system of solar hot water is expected to save SLR 781,200. (Approximately 5,400.00 USD) per year and reduce emission of CO2 by 33 Tons per year.

Abstract [sv]

Hotellindustrin i Sri Lanka är en viktig del av den ekonomiska återhämtningen efter den 30-åriga krigsperioden i landet. Detta har resulterat i en stor efterfråga för energi för att kunna tillgodose en hög standard till turisterna. Hotellens ökade energianvändning tillfredsställer besökarna i en större grad som i sin tur leder till högre vinster.

Elenergi används inom denna industri för belysning, luftkonditionering, vattenrening, tappvärmevatten och ånga för tvättning, städning osv. Eltillförseln i Sri Lanka är i huvud sak fossilbaserad. Fossilolja förbränns i pannor för olika varmvattenändamål.

Om termisk kraftgenerering med fossila bränslen fortsätter att utnyttjas i så stora skala kommer Sri Lanka att drabbas ännu mer ekonomisk i framtiden på grund av oljeimporten. Miljön också påverkas negativt genom ökade utsläpp av växthusgaser. Därmed behöver man undersöka alternativa energikällor för att möta energibehoven i hotellsektorn. Dessutom bidrar förnybara energikällor till landets hållbar utveckling.

Detta projekt omfattar en övergripande studie för att identifiera möjligheter för energibesparingar i Sri Lankas hotellindustri. Undersökningen visar att cirka 22% av hotellens energianvändning går åt varmvatten, vilken är en högre andel än energibehoven för komfortkyla och belysning. Varmvattenanvändning i ett strandhotell utvärderades och alternativa energikällor som solvärme studerades. Solvärmesystem designades i detalj med tillgängliga data. Simuleringar genomfördes med kommersiella mjukvaror som Polysun, Kolektor 2.2, SAM2010 och RETScreen.

Det utvalda systemet förväntas leda till en årlig besparing på SLR 781,200 (circka 5,400 USD) och årlig CO2-minskning på 33 tonne.

Place, publisher, year, edition, pages
2016. , 92 p.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-191189OAI: oai:DiVA.org:kth-191189DiVA: diva2:955272
Educational program
Master of Science - Sustainable Energy Engineering
Supervisors
Examiners
Available from: 2016-08-25 Created: 2016-08-25 Last updated: 2016-08-25Bibliographically approved

Open Access in DiVA

fulltext(3729 kB)7 downloads
File information
File name FULLTEXT01.pdfFile size 3729 kBChecksum SHA-512
713470d3aeb94b1f9761b582a38c6100d0cb1582f7be284649567b1177829e8c2cdc1f36c96b8335e7b5d5116b3732d7409db3b2dad4f5f252430db679f1a0f6
Type fulltextMimetype application/pdf

By organisation
Energy Technology
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 7 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 12 hits
ReferencesLink to record
Permanent link

Direct link