Abstract
The purpose of the article is to determine the profitability of investing in a graywater heat recovery system in a hotel facility located in south-eastern Poland whichis dependent on three heat sources for the domestic hot water preparation system, i.e. gas boiler, biomass boiler and electric heater. There were also various options for accommodation use: 25%, 50%, 75% and 100% occupancy of the hotel. The research was focused on the most frequently used methods for the absolute assessment of the effectiveness of investment projects enabling the creation of an objective criterion. Thus, both the simple method - Simple Pay Back Period SPBP and dynamic methods based on the discount account were used in calculations: Net Present Value NPV, Internal Rate of Return IRR, Profitability Index PI, Discounted Pay Back Period DPBP. The analysis also includes the annual increase in the purchase price of energy carriers. The conducted research has shown that in most cases the installation of the DWHR (Drain Water Heat Recovery) system is beneficial and profitable to the investor.
Reference16 articles.
1. Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the energy performance of buildings
2. COM(2015) 80 final communication on A Framework Strategy for a Resilient Energy Union with a Forward-Looking Climate Change Policy (European Commission, Brussels, 2015)
3. SWD(2016) 24 final communication on EU Strategy for Heating and Cooling (European Commission, Brussels, 2016)
4. Hydraulic analysis of functioning of the drainage channel with increased retention capacity
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献