In this work, a similarity solution of the flow, heat and mass transfer of a nanofluid over a porous plate in a Darcy-Forchheimer flow is explored. The nanofluid model includes Brownian motion and Thermophoresis diffusion effects. The governing transport equations are made dimens...
Open access
Research Article10.9734/cjast/2019/v34i230123
A hand operated low pressure biomass multi briquetting machine was developed and evaluated which works using a screw press mechanism. The developed system mainly consists of multi square moulds, multi circular moulds, single circular mould pressing plates, base plate, supporting...
Open access
Research Article10.9734/cjast/2019/v34i130113
The study analyzed the spatial variability of daily rainfall intensity in the Middle Belt region (MBR) of Nigeria for 46-year period (1961-2006). Daily rainfall (≥0.3mm) data were collected from eight synoptic weather stations in the study area. Daily rainfall intensity were clas...
Open access
Research Article10.9734/cjast/2019/v34i130114
The world-wide use of PET has gradually increased from time to time. And most of the PET waste is being dumped into the environment instead of recycling. This creates serious environmental pollutions. In thermal degradation process, PET is being decomposed to liquid fuels. Conver...
Open access
Research Article10.9734/cjast/2019/v34i130115
Design and Engineering Economic Analysis of two widely used Air-Conditioning (AC) systems, Mini-Split and Variable Refrigerant Flow (VRF), in the new Engineering Complex Building under the same indoor and outdoor conditions for an entire year is carried out by using Carrier Hourl...
Open access
Research Article10.9734/cjast/2019/v34i130111
The present study was carried out to assess the pollution status of heavy metals in the marine sediment in Ondo coastal area. A total of 36 sediment samples were collected from the three locations (Awoye, Abereke and Ayetoro) once in a month in 2015 covering both dry and wet seas...
Open access
Research Article10.9734/cjast/2019/v34i130112
In research, experiments must be performed at pre-determined levels of the controllable factors, meaning that an experimental design must be selected prior to experimentation. Once an experimenter has chosen a polynomial model of suitable order, the problem arises on how best to...
Open access
Research Article10.9734/cjast/2019/v33i630110
The technique for parboiling of paddy through ohmic heating was one of the best and fastest technique, which takes minimum time for complete a process due to high voltage of electric current. The aim of this study was to define the time & temperature combination of ohmic heat...
Open access
Research Article10.9734/cjast/2019/v33i630109
Aim: This study evaluates and establishes the nature and characteristics of flooding and flood disaster in Ogbaru. Study Design: It was a survey research, where questionnaires were distributed to heads of the selected households and building practitioners in the study area. Likew...
Open access
Research Article10.9734/cjast/2019/v33i630108
Calcium (Ca2+) related physiological disorders of fruits and vegetables are abnormalities of fruits and vegetables which are not caused by infectious diseases, insects, nematodes or animals. Fruit and vegetable abnormalities occur due to environmental stress, nutritional deficien...
Open access
Research Article10.9734/cjast/2019/v33i630107