Performance Investigation of Large-Scale Solar Water Heating System Using Solar Tower Technology: A Case of Bishoftu General Hospital

Abstract

Located 47 kilometers southeast of Addis Ababa, Ethiopia, in the town of Bishoftu, which is part of the Oromia region, is one of the first general hospitals. It was established in 1941G. C the current overall number of available beds in healthcare facilities is 216. In a hospital, the need for hot water is typically met by fitting consumers at a temperature of 40℃ to 70℃, while the kitchen, shower, and laundry for sterilization temperatures exceeding 85℃ are frequently needed to meet hygienic standards. It is challenging to reliably supply hot water in hospitals in developing nations like Ethiopia, where we know that there is a shortage of fuel and electricity in addition to other problems. This makes it possible for us to offer sustainable energy sources. Other solar collector techniques, such as concentrated and non concentrated collectors, have been studied in the past for the production of hot water for hospitals. However, this has not been studied on a large scale because the visibility and potential of solar tower collectors to store temperature is higher than after reducing excess temperature by using different sizes of mixing chambers for end use as required temperature. the Ethiopian Meteorology Agency provided the work data for this thesis, that is global horizontal irradiance (GHI) data, but this data is not relevant for concentrated-type solar collectors. As a result, this data was substantially transformed, and the Hellas 1 type heliostat was chosen by taking into account the reflectivity of the glass. 322 heliostats are required to provide the 616.2 m2 of hot water required by that institution. However, this project will require 3,801.1m2 in total the output of a numerical simulation using weather information from the Bishoftu Agricultural Research Metrology Center, which was calculated to be 22.4 m3 daily total hot water demand and required two storage tanks of 25m3 each. This will be done through theoretical analysis and numerical using ANSYS software. This study will be conducted using a solar tower (ST) numerically supply of hot water.Located 47 Kilometers Southeast Of Addis Ababa, Ethiopia, In The Town Of Bishoftu, Which Is Part Of The Oromia Region, Is One Of The First General Hospitals. It Was Established In 1941g. C The Current Overall Number Of Available Beds In Healthcare Facilities Is 216. In A Hospital, The Need For Hot Water Is Typically Met By Fitting Consumers At A Temperature Of 40??? To 70???, While The Kitchen, Shower, And Laundry For Sterilization Temperatures Exceeding 85??? Are Frequently Needed To Meet Hygienic Standards. It Is Challenging To Reliably Supply Hot Water In Hospitals In Developing Nations Like Ethiopia, Where We Know That There Is A Shortage Of Fuel And Electricity In Addition To Other Problems. This Makes It Possible For Us To Offer Sustainable Energy Sources. Other Solar Collector Techniques, Such As Concentrated And Non Concentrated Collectors, Have Been Studied In The Past For The Production Of Hot Water For Hospitals. However, This Has Not Been Studied On A Large Scale Because The Visibility And Potential Of Solar Tower Collectors To Store Temperature Is Higher Than After Reducing Excess Temperature By Using Different Sizes Of Mixing Chambers For End Use As Required Temperature. The Ethiopian Meteorology Agency Provided The Work Data For This Thesis, That Is Global Horizontal Irradiance (Ghi) Data, But This Data Is Not Relevant For Concentrated-Type Solar Collectors. As A Result, This Data Was Substantially Transformed, And The Hellas 1 Type Heliostat Was Chosen By Taking Into Account The Reflectivity Of The Glass. 322 Heliostats Are Required To Provide The 616.2 M2 Of Hot Water Required By That Institution. However, This Project Will Require 3,801.1m2 In Total The Output Of A Numerical Simulation Using Weather Information From The Bishoftu Agricultural Research Metrology Center, Which Was Calculated To Be 22.4 M3 Daily Total Hot Water Demand And Required Two Storage Tanks Of 25m3 Each. This Will Be Done Through Theoretical Analysis And Numerical Using Ansys Software. This Study Will Be Conducted Using A Solar Tower (St) Numerically Supply Of Hot Water.