http___hotel-villadvor.hr_hr_eco-friendly-hotel_1.xml
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Composting municipal and bio degradable kitchen waste and the production of humus In order to improve environmental quality as well as reduce the costs of disposal of municipal and biodegradable waste (green parts of plants, grass clippings, leaves, twigs, packaging cardboard, paper, waste from the kitchen) Hotel Villa Dvor has built its own composting unit into which air is naturally supplied through the drywall and the mixture is stirred occasionally for proper fermentation. The annual amount of waste that is composted is around 5000 liters. All glass and PET packaging for which the return fee is charged is returned to the supplier and the rest is recycled. In addition, the used oil from the kitchen is recycled. The mixture obtained after the fermentation is transferred to earthworms (Eisenia fetida) beds with where compost processed into vermicompost - top humus. This is how we produce about 2,000 liters of premium humus. Humus enriches the soil and it is used as food in our own garden in the production of vegetables for the hotel. Getting heat from the river Cetina In cooperation with the Mechanical Engineering Faculty, Split we designed and manufactured heat pump water - water for heating and cooling of the hotel, as well as hot water. We obtained the licence/concession for water operation on the river Cetina. Heat pump consists of two separate circuits. One is used for domestic hot water when cooling system. is not working. The second round is used for space heating and cooling the hotel. When cooling system is in operation, the waste heat is used to heat domestic hot water. This system autonomously produces all the necessary heat for the needs of the hotel. The coefficient of consumed and produced energy is about 1: 5. All rooms in the hotel including the halls have autonomous temperature control, which further saves heat consumption and fan-coil stops automatically as soon as you open the window in a room. All windows were made of thermal insulation glass and the facade and the roof terrace of the hotel are insulated with 8 cm styrodur which further reduces energy loss. Apart from financial benefits for the hotel there is also a significant contribution to the environment protection. It reduces the costs of waste management at the local level and reduces carbon emissions. The consumption of drinking water In order to rationally exploit drinking water, we have installed toilet tanks with dual-zone flushing of 3 or 6 liters of water per flush. In public toilets we installed sensor taps and in all bathrooms have inbuilt thermostatic bath mixer tap which specify the temperature of water in the bath. Moreover, all the taps have inbuilt Perlati e. that mix water and air and the process uses up to 50% less drinking water, and the feeling of showering is much higher because it gets soft stream and abundant quantity. Shampoos and soaps in the rooms and public toilets are pH-neutral and have the Eco Certification and detergents used in washing machines and dishwashers are biologically degradable. Saving of drinking water is achieved in maintaining the environment of the hotel. All plants in the environment of the hotel are native plant species (sage, lavender, rosemary, broom, olives, different types of perennials) that are much more resistant to local climate conditions (karst area, the lack of water in summer, storm in the winter) and this reduces the consumption of water for watering and feeding humus makes them more durable and resistant. Energy savings Energy is saved on heating as well as lights. We have installed lighting fixtures in the hotel that use energy-saving lights. Since 2011, we started exchanging each additional energy saving light which burnt out with LED bulbs which consume up to 7 times less than fluorescent tubes. In order to reduce CO2 emissions and use renewable energy resources we made a project of photovoltaic power plant of 24kW, was put into operation in April 2014. Apart from the photovoltaic power plant of 24kW we have installed three solar collectors with a total output of 5 kW for additional heating of hot water. The hotel has inbuilt a prototype elevator which, when the weight difference between the cabin and weight is more than 130 kg, depending on whether the elevator is going up or down, produces 3.9 kW
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Kompostiranje komunalnog i kuhinjskog bio razgradivog otpada, te proizvodnja humusa Hotel Villa Dvor da bi poboljšao kvalitetu okoliša i smanjio troškove za zbrinjavanje komunalnog i biorazgradivog otpada (zeleni dijelovi biljaka, pokošena trava, lišće, grančice, ambalažni karton, papir, ukupni otpad iz kuhinje) izgradio je vlastitu kompostanu u koju se prirodnim putem kroz suhozid dovodi zrak, a uz pomoć spiralne miješalice smjesa se povremeno miješa radi pravilne fermentacije . Godišnja količina komunalnog otpada koji ide u kompostanu kreće se oko 5000 litara. Sva staklena i pet ambalaža ide u povrat ako je zaračunata povratna naknada, a ostatak ide u reciklažu. Pored toga i otpadno ulje iz kuhinje ide u reciklažu. Dobivena smjesa nakon fermentacije prebacuje se na doradu u glistnjak gdje se uz pomoć kalifornijskih glista kompost prerađuje u vrhunski humus. Ovom operacijom dobiva se oko 2000 litara prvoklasnog humusa . Ovako dobivenim humusom oplemenjuje se tlo i isti se koristi kao prehrana u vlastitom vrtu kod proizvodnje povrća za potrebe hotela. Dobivanje toplinske energije iz rijeke Cetine Za grijanje i hlađenje hotela, te pripremu potrošne tople vode, uz suradnju sa Strojarskim fakultetom u Splitu konstruirana je i izrađena dizalica topline voda - voda. Dizalica topline sastoji se od dva odvojena kruga. Jedan služi za pripremu potrošne tople vode kada ne radi sustav za hlađenje. Drugi krug se koristi za grijanje i hlađenje prostora hotela. Kada radi sustav hlađenja onda se otpadna toplina rekuperira i koristi za zagrijavanje potrošne tople vode. Ovaj sustav autonomno proizvodi svu potrebnu toplinsku energiju za potrebe hotela. Koeficijent utrošene i dobivene energije kreće se oko 1:5. Sve prostorije u hotelu uključujući i hodnike imaju autonomnu regulaciju temperature čime se dodatno racionalizira potrošnja toplinske energije. Sva stakla su termo izvedbe, a fasada terase i krov hotela su dodatno izolirane čime se dodatno smanjuju gubitci energije. Potrošnja pitke vode Kako bi se racionalno trošila pitka voda u svim sanitarnim čvorovima ugrađeni su vodokotlići sa dvozonskim ispiranjem 3 ili 6 litara vode u jednom ispiranju. U javnim sanitarnim čvorovima ugrađene su slavine na senzor, a u svim kupatilima ugrađene su termostatske miješalice kojima zadajete temperaturu vode za kupanje. Pored toga sve slavine imaju ugrađene perlatore, odnosno uređaji koji miješaju vodu i zrak, pri čemu se troši do 50% manje pitke vode, a sam osjećaj je znatno veći jer se dobiva mekani mlaz i izdašna količina. Šamponi i sapuni u sobama i zajedničkim sanitarijama su pH neutralni te imaju Eco certifikat, a deterdženti koji se koriste u pranju rublja i posuđa biološki su razgradivi. Uštedu pitke vode ostvaruje se i u održavanju okoliša hotela. Sve biljke u okolišu hotela su autohtone biljne vrste (kadulja, vrijesak,lavanda, ružmarin,brnistra, masline, različite vrste trajnica) koje su puno otpornije na lokalne klimatske uvjete (krško područje, nedostatak vode u ljetnim mjesecima, bura u zimskom periodu) te se time znatno smanjuje potrošnja vode za zalijevanje, a prehrana humusom čini ih izdržljivijim i otpornijim. Ušteda električne energije Ušteda električne energije osim energije za grijanje provodi se i na rasvjeti. U hotelu su ugrađene sva rasvjetna tijela koja koriste štedne žarulje. U hotelu se koriste led žarulje koje su u potrošnji električne energije i do 7 puta manje od plinskih štednih žarulja. U cilju smanjivanja emisije CO2 i korištenja obnovljivih izvora energije hotel je realizirao projekt fotonaponske (solarne) elektrane snage 24kW. Uz fotonaponsku elektranu od 24kW hotel je instalirao tri solarna kolektora ukupne snage 5 kW za dogrijavanje tople vode. U hotel je ugrađen prototip dizala koji u režimu rada, kada je razlika težine kabine i utega više od 130 kg ovisno dali se lift spušta ili diže, proizvodi 3,9 kW električne energije koju pušta u mrežu.