energy efficiency

Problem setting. One of the most pressing issues of the development of the fuel and energy complex of Ukraine, the discussion about which has been going on for many years, is the question of the size, forms and directions of state intervention in the activities of individual industries and sub-sectors of the complex, as well as the assessment of the consequences of this intervention for the economy and society as a whole.

 The development of plant-based materials will help to solve the problems associated with the use of agricultural waste, and at the same time to get inexpensive and effective insulation materials based on environmentally friendly local raw materials. The advantages of such materials are availability, fast recovery, low cost, environmental friendliness and low thermal conductivity.

The research work is devoted to the survey of the power economy of Lviv Polytechnic National University to assess energy security, to improve the strategy of energy use, and to develop measures for improving the energy security of the university.

An energy-saving scheme for the production of candied carrots has been developed. The developed scheme includes: washing of raw materials with 1% NaHCO3 solution, reduction of water consumption for blanching, reduction of syrup consumption for saturation of raw materials with sugar. A new drying technology is introduced: candied fruits are dried in a variable temperature mode, namely: in the initial stages with a heat agent at a temperature of 70 0C, at the final stage - with a heat agent at a temperature of 20 0C.

The article presents an analytical review of promising trends in apartment housing for the next 15 years. In particular, the following trends have been identified: increasing the role of energy efficiency, reducing housing stories, increasing dwelling diversity, increasing the role of environmental and ethical factors in diversifying housing management, modernization, cooperative building retrieval, appearance housing policy. 

The article identifies the main conditions and problems of introducing energy-efficient technologies for business in Ukraine and considers the design experience of building green commercial buildings that have been erected in recent years (innovative parks UNIT.City in Kiev and LvivTech.City in Lviv, on the Sobachie mouth peninsula, Astarta Business Center in Kiev, etc.) It has been established that the main problem of introducing energy-efficient technologies in public commercial projects is the insufficient participation of the state in financing and stimulating business.

Energy audit provides a way to derive energy potential and to develop energy saving program in order to improve energy efficiency during early stage design decision process for new-developed systems that can reduce costs for project owner and for customer. This paper presents utilization of complex energy system (solar assisted heat pump) for heating and cooling purposes. Simulation has been carried out using TRNSYS 18 software for a complex energy system located in northern latitude. The results of such system configurations are presented in the paper.