7 research outputs found
Methodology for Energy and Energy Analysis of Steam Boilers
This paper presents a framework of thermodynamic, energy and exergy, analyses of industrial steam boilers. Mass, energy, and exergy analysis were used to develop a methodology for evaluating thermodynamic properties, energy and exergy input and output resources in industrial steam boilers. Determined methods make available an analytic procedure for exergetic analysis on steam boilers for appropriate applications. Chemical exergy of the material streams was considered to offer a more comprehensive detail on energy and exergy resource allocation and losses of the processes in a steam boiler. Keywords: exergy, energy, steam boilers, chemical exergy, exergy destructio
Design of Optimal Hybrid Renewable Energy System for Sustainable Power Supply to Isolated-grid Communities in North Central, Nigeria
The study analyzed the feasibility and techno-economic viability of renewable electricity generation from wind and solar standalone
systems, and as hybrid facilities in six states across North-central, Nigeria. 24 years’ daily solar and wind data were sourced from
system as a test case for university communities with an equivalent consumption of 28.9 MWh/day. The electricity load demand
adopted was based on an audit of electricity generation conducted for the University of Lagos main campus. The supply architecture
adopted in this study excludes the use of heavy equipment or machinery loads and only caters for the institutions’ base loads. An
evaluation of the design that will optimally match the daily load demand of the communities with LOLP ranging from 1 to 50%
was undertaken. HOMER software was employed as the optimisation tool together with other statistical and analytical variations
to determine best design for the sites with diesel standalone facility taken as the base system. The outcome showed that hybrid
generation system fared better than the standalone PV or Wind energy system at Abuja, Ilorin, Lokoja and Makurdi, while the wind
standalone system was the optimal generation technology at Minna and Jos. Further to this, values of the levelized cost of energy
showed that adopting wind resources (as standalone or in hybrid format with PV) for power generation at the sites/institutions at
Minna and Jos, is more viable than the use of diesel generators