engleski

Applying Solar Energy for Heating - A Case Study at a Secondary School in Croatia

The paper describes an example of solar energy usage for water heating. Solar energy is suitable for application in Croatia, considering a number of sunny days and high average temperatures in Croatia. Described weather conditions results in high efficiency of heating systems based on solar energy. The most important advantage of solar energy heating, in comparison to other heating systems, is in environmental sustainability. Solar system, applied for water heating, can save an average of 50-60 % annual energy needs. During almost all the year (except winter conditions with extra low temperatures), additional conventional water heating systems work on a minimum power, thus eliminating harmful emissions (CO2), which occur as a by- product from burning conventional fuels. By transforming solar energy to water thermal energy, considerable financial resources are saved. Investment’s repayment of this solar heating system can be observed through the reduction of energy consumption (e.g. natural gas) during the preparation of consumable hot water (CHW) and/or space heating.

solar thermal energy ; heating system ; savings ; emissions

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