A microcomputer implementation of a simplified thermal simulation model of a naturally ventilated building is presented. One of the main features of the model is the ability to predict the indoor environment of a building with open windows. It can also account, amongst other things, for internal heat generation, solar penetration, exterior surface colour, ground contact and the position of mass and insulation in the building shell. A good agreement between predictions and measurements was found and four validation studies Hollister Shop Online
are presented. The program is fast, highly interactive and extremely easy to use. It Hollister Outlet Brampton
is ideal as a design tool for building designers.
A novel blend of piperazine (PZ) with N-(2-aminoethyl) piperazine (AEP) has been proposed as a superior solvent for CO2 capture from coal-fired flue gas. Blending PZ with AEP can remediate the precipitation issue of concentrated PZ while maintaining its high CO2 absorption rate, and high resistance to degradation. Although PZ/AEP has a lower CO2 capacity than concentrated piperazine, its higher heat of absorption may offset the negative effect on energy consumption. PZ/AEP also shows a milder nitrosamine issue than concentrated piperazine. A novel method for synthesizing AEP using PZ and monoethanolamine (MEA) was also developed to lower the solvent cost in industry application.