MICROCLIMATE CONDITIONS AND THE DESIGN OF OPTIMAL HEAT TRANSFER IN GREENHOUSES

V magistrski nalogi je analiziran vpliv sončnega obsevanja, odvisno od geografske lege, na postavitev rastlinjakov podjetja PUP Velenje d.d.. Predstavljeni so glavni vplivi na mikroklimo v rastlinjaku ter celovit pregled izmenjave toplote v rastlinjaku, ki je potreben za regulacijo mikroklimatskih parametrov v rastlinjaku. Omejeni so spremenljivi parametri s katerimi opišemo izračun toplotnega ravnotežja rastlinjaka v ekstremnih pogojih v kateremkoli klimatskem področju za različne kritine. Določeni so prihranki energije v primeru kritin kot so: enojno kaljeno steklo 4mm, dvojno izolacijsko steklo in polikarbonatne plošče. Analiza stroškov je izvedena z ekonomsko metodo NSV.This Master\u27s thesis will analyse the effect of solar radiation, based on geographic positioning, on the placement of greenhouses by the company PUP Velenje d.d.. The main influences on microclimate in a greenhouse will be presented and a holistic overview will be given of the heat transfer within a greenhouse, which is necessary for the regulation of microclimate parameters in a greenhouse. The variable parameters are limited: these parameters describe the calculation of the heat balance of the greenhouse in extreme conditions in any climate for different types of roofing. Energy savings have been determined in the case of the following types of roofing: single toughened glass 4mm, double insulated glass and polycarbonate sheets. A cost analysis will be performed using the NPV economic method