http://www.mathnet.or.kr/kaist2005/article/arganbright.pdf.Join ResearchGate to find the people and research you need to help your work.The project seeks to initiate a research in the utilisation of hybrid renewable energy technology for the coastline communities of Nigeria. A minimum of 7.56 m 2 solar collector area is required to dry a batch of 100 kg tapioca in 20 hours (two days drying period). Tap water has an adequate temperature to feed the system for cooling and its consumption rate is in the range of 2.1--2.4 l/kWh output. 1. Curb the alarming rural-urban drift mainly for white collar jobs, which are not readily available in the urban dwellings.
A psychrometric chart ( Figure 6.4 ) shows the properties of moist air in terms of dry-bulb temperature, wet-bulb temperature, relative humidity, humidity ratio, and specific enthalpy. Based on the operating data of an existing CCPP operating in the tropical rain forest region of Nigeria, results of the analysis showed that by utilizing exhaust heat of the CCPP to power an ORC, using R113 as the working fluid, extra 7.5 MW of electricity was generated and by powering an ARC to cool inlet air streams to 15°C in the gas turbine plants, additional 51.1 MW of electricity was generated. The cooling output of the system ranges from 3.1 to 4.2 W/m-super-3/h air flow rate in the UK, depending upon the region where the system is applied. The accuracy of its output is good enough for engineering practice and, therefore, strongly recommended it as a teaching tool, which would be useful in regions where there is limited internet access.
The solution scheme and computer language adopted in this work are easy to apply and use as opposed to the available sophisticated and expensive computer software packages; and the MS Excel add-in presented in this paper would be useful to both practicing
(30°-70°C). The stack flue gas exit temperature reduced from 126 o C to 84 o C in the absorption refrigerator, thus reducing the environmental thermal pollution. The efficiency of the machine, its associated cost of production and the product obtained after few minutes of mixing were outstanding, thereby, making the design acceptable and cost effective.Five automotive-related projects used to teach the principles of heat transfer are presented.
essential elements of psychrometrics (the behavior of mixtures of air and water vapor under varying conditions of heat) and the chart that represents it. 5°30', long. Revisions include a new chapter on the sources, uses and management of energy as well as major updating of the chapters on internal combustion engines and psychometry. Specifically, mathematical software packages are introducing revolutionary changes to engineering problem solving and design. Results also show that the highest rate of exergy destruction in the combined cycle power plant occurred in the combustion chamber while the highest rate of exergy destruction in the absorption refrigeration cycle occurred in the evaporator followed by the absorber.This paper presents the thermodynamic, economic and environmental impact assessment of an existing combined cycle power plant to be retrofitted with a waste heat driven aqua lithium bromide absorption refrigerator for cooling the inlet air streams to the compressor and air cooled steam condenser. Author: … 2. Keywords: Spreadsheets, Excel, ThermodynamicsThis book presents a complete introduction to the fundamentals of the theory and application of thermodynamics. Oko and E.O. Analysis of air-conditioning and drying processes using spreadsheet add-in for psychrometric data C.O.C.
It is concluded that the dew point system is © 2008-2020 ResearchGate GmbH.
Simple diagrams of the psychrometric chart are shown in Figs. The add-in is able to compute the thermodynamic properties of R152a refrigerant - specific volume, internal energy, enthalpy, and entropy in the wet, subcooled and superheated-vapor regions.