Abstract
The article discusses the issues of studying heat transfer in hybrid solar collectors using a developed laboratory stand. The issue of solar energy efficiency is very important in light of the modern concept of carbon neutrality. One of the most promising solar energy technologies is the use of hybrid solar collectors, where, along with electrical energy, thermal energy is also generated. The heat removed from the surface of the solar panel allows to maintain a high level of its efficiency, and the heat removed is used by the consumer. One of the most effective methods for intensifying heat transfer in hybrid solar collectors is the use of nanofluids as a coolant. Nanofluids are a new type of coolant with increased thermal conductivity, consisting of a base fluid and nanoparticles. The most commonly used and economically feasible are nanofluids with the addition of metal oxides. The developed laboratory stand will allow simulating solar radiation and studying the currentvoltage characteristics of the solar panel at different lighting levels. The use of different types of nanofluids will allow to determine the most efficient operating modes of a hybrid solar collector. Analysis of thermal and electrical efficiency will provide a more complete picture of production when hybrid solar collectors operate in various modes using different types of nanofluids.