scholarly journals Design and Performance Evaluation of Energy Efficient Biomass Gasifier Cook Stove Using Multi Fuels

2019 ◽  
pp. 1-7
Author(s):  
Isaac F. Odesola ◽  
Ebenezer O. Ige ◽  
Idris O. Yunus
Keyword(s):  
Performance Evaluation ◽  
Rural Communities ◽  
Body Temperature ◽  
Thermal Performance ◽  
Energy Efficient ◽  
Flame Temperature ◽  
Design Parameters ◽  
Governing Equations ◽  
And Performance ◽  
Co Emission

Since the beginning of civilization, cooking has been done by using biomass as fuel. They are used in stoves which cause wastage of fuel and also health problems. Thus, there is the need to analyze the thermal performance of a developed cook stove that operates on multifuel conditions. The stove was designed to work on sawdust, wood, groundnut and charcoal as the primary fuel. Prior to fabrication, design parameters were obtained using the appropriate governing equations. Inputs were further made to simplify the construction of the stove and to minimize heat loss to the surroundings. A thermal efficiency of 32.18%, 80.10%, 38.73% and 50.33% was achieved when the stove was fuelled with charcoal, sawdust, wood and groundnut husk respectively. The highest flame temperature was recorded as 205ºC when wood was used as fuel. The highest stove body temperature recorded was 56ºC. Wood took the shortest time (20 mins) to boil water compared to sawdust, charcoal and groundnut husk which took 29, 23 and 27 minutes respectively for 2 kg of water. The developed cook stove was found to be energy efficient for domestic cooking especially in the rural communities of Nigeria.  Although it has the potential to save fuel, further research could be carried out in the aspect of removing CO emission.

scholarly journals On the development, testing and performance evaluation of energy efficient coatings for buildings

2016 ◽  
Author(s):  
Charikleia Anestopoulou ◽  
Chrysanthi Efthymiou ◽  
Dimitris Kokkonis ◽  
Mattheos Santamouris
Keyword(s):  
Performance Evaluation ◽  
Energy Efficient ◽  
And Performance

Thermal Performance Analysis Of Solar Air Heaters

1984 ◽  
pp. 1-15
Author(s):  
Mohamad Jamil ◽  
Prof. Madya Amer Nordin Darus
Keyword(s):  
Performance Analysis ◽  
Low Temperature ◽  
Flat Plate ◽  
Flow Rate ◽  
Thermal Performance ◽  
Air Flow ◽  
Design Parameters ◽  
Air Flow Rate ◽  
Governing Equations ◽  
Radiation Exchange

A computer routine to calculate the thermal performance of several different low temperature types of flat-plate air heaters is to be discussed. Analysis of each type is also described. The programme accepts as input real or simulated flux, collector geometry, air flow rate and enviromental data. It computes temperatures and extracts energy as a function of time of the day. The programme evaluates radiation,convection, conduction and wind losses, and the radiation exchange with the enviromental conditions.The procedure used in the derivation of the governing equations is also described. The prediction of performance provided by this programme is particularly useful in comparing performances of different collectors and for studying a specific collector's performance with changes in enviroment and design parameters which can be controlled to some extent by the designer.

scholarly journals Development and Performance Evaluation of an Improved Thermal Performance Wood Stove using Skirt

2021 ◽  
Vol 28 (1) ◽  
pp. 93-102
Author(s):  
I. Ajunwa ◽  
C.O. Folayan ◽  
G.Y. Pam ◽  
S. Abubakar ◽  
M.J. Iorpenda ◽  
...  
Keyword(s):  
Energy Source ◽  
Performance Evaluation ◽  
Fuel Consumption ◽  
Thermal Performance ◽  
Thermal Efficiency ◽  
Heat Energy ◽  
Specific Fuel Consumption ◽  
Wood Stove ◽  
Water Boiling Test ◽  
And Performance

The importance of heat energy source from wood to humanity cannot be over emphasised since many depend on it for their heating needs. In this work, a wood stove was designed, constructed and tested without a skirt and with a detachable skirt of height 120 mm (same height as the pot used for the experiment) to ascertain the influence of the skirt on the stove in terms of thermal performance in a water boiling test. Thermal efficiency and specific fuel consumption were evaluated. It was found that the stove tested without a skirt gave an average thermal efficiency of 31.33% and an average specific fuel consumption of 0.14 kg/l. When tested with a skirt, however, the stove gave an average thermal efficiency of 38.65% and an average specific fuel consumption of 0.09 kg/l. This signifies an improvement in thermal performance by the use of skirt on the stove designed. Keywords: Humanity, Globally, Detachable-skirt, Thermal performance, Wood stove.

scholarly journals Design Analysis and Performance Evaluation of Annulus Patch Antennas

2019 ◽  
Vol 8 (3) ◽  
pp. 3116-3122 ◽  
Keyword(s):  
Performance Evaluation ◽  
Wireless Communications ◽  
Circular Ring ◽  
Design Analysis ◽  
Design Parameters ◽  
Equivalent Circuits ◽  
Patch Antennas ◽  
Resonant Frequencies ◽  
And Performance ◽  
Theoretical Foundations

The paper presents a detailed investigation of various types of circular ring patch antennas and their importance in Wireless Communications, especially under satellite Frequency Applications. The main focus is considered on the typical resonant frequencies, design parameters, theoretical foundations on the shape, equivalent circuits and various applications of the ring patch antennas. Design, simulation and comparison of different structures of patches with annulus patch were also presented to justify the investigation.

scholarly journals Fabrication and Performance Evaluation of Savonious Vertical Axis Wind Turbine for Uncertain Speed Regions

2017 ◽  
Vol 13 (2) ◽  
Keyword(s):  
Performance Evaluation ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Urban Areas ◽  
Vertical Axis ◽  
Design Parameters ◽  
Vertical Axis Wind Turbine ◽  
Horizontal Axis Wind Turbine ◽  
Vertical Axis Wind Turbines ◽  
And Performance

The consumption of electricity in urban as well as rural is increasing every day and became an essential commodity for household and industrial purposes. Unfortunately the availability of electrical energy in India is not sufficient to the required demand and it is essential to discover and generate energy from non-conventional sources with cheap cost. On the same time it is necessary to reduce the consumption of conventional sources and to save fuel. Among all the renewable resources, wind is one of the best resources available all the time at free of cost. Especially vertical axis wind turbines (VAWT) are self-starting, omni directional. They require no yaw mechanism to continuously orient towards the wind direction and provide a more reliable energy conversion technology, as compared to horizontal axis wind turbine. Particularly savonius vertical axis wind turbines (SVAWT) are suitable and practically possible at low or uncertain wind speed regimes. They can be fitted on rooftops and also suitable for the urban areas where electricity is not available properly. This project deals with the fabrication and performance evaluation of savonius vertical axis wind turbine using two blade rotor. The amount of power developed by the wind turbine is calculated under theoretical and practical conditions and aerodynamics coefficients are also estimated. And various design parameters of savonious rotor are identified and determined.

Sign in / Sign up

Export Citation Format

Share Document